SCIENTIFIC ABSTRACT PANCHENKOV, G. M. - PANCHENKOV, G. M.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R001239010003-2
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: January 3, 2017
• Document Release Date: August 1, 2000
• Sequence Number: 3
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

NIGHWWOW, G.Kno; GRYAZIOVA, Z.V.; 73OM'YOOVI., V.M.-, GANIGHWiM, L.G.
w
Cowfersion of hvdrocarbono on deuteriated alumino silicate catalysts.
Probl. kin. I kat. 9:145-151 157. (MIRA 11:3)
(Deuterium) (Catalvsts) (Chemical reaction, Rate of)

PANCHAMOV, G&Ho
~. "
i~, - ~ - 1. ~
- ~ ,
'p. ;--ow
-- Digousigion. Prt)bl. kin. i kat. 9.-168-170 157* (HIBA 110)
(Catalysts) (ILvdrogen-Isotopes)

PAYCHINKOV, G.M.; AKISHIN, P.A.; VASILIYEV, N.N.
Has"-nVotroscopic analysis of alumino eilloatie catalysts, Probl,
kin, I katu, 9:378-385 157. (MIRA 110)
(Catalysts) (Mass spectroieopy)

PANCHEliKOV G H.;SEMIUKHIV. I.A.paISHIN. P.A.
Chemiatry of isotope separation. Vast. Mosk, une Ser, mat., mekh.,
astron. fiz.. IIchin. 12 no. 6:199-214 157. (MIRA 11:10)
1. Kafedra fizichaskoy khimii Moskovskogo gosudarstvennogo
u,niversiteta.
(Isotopes)

.4t
-
SIZPARA'I'ION by 1�6-
MIOD FOR THZ
A rRFMICA~ Nk

A CbL'M--'CUI MCI,

A

EN3
_i- duo r-A *01 10

IV -

b~-.PIRTZUtM 1 7 Vhl-
-Tim
rM
mo t-
mi nit-,
of i arm, ne iq,),tnpe 5T7, "I-"- NT"
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76-10-8/34
AUTHORSs Panchenkov, G.M., Semiokhin, I.A., Kalashnikov, O.P.
TITLE: Separation of Stable Nitrogen Isotopes acccrding to the Chemic-
al Exchange Method.II. (Razdeleniye stabillnykh izotopov azota
metodom khimicheskogo obmena. I1.)
PERIODICAM Zhurnal Fizicheskoy Khkaii, 1957, Vol. 31, Nr 10, pp. 2224-2228
(USSR)
ABSTRACTs The influence of the flow velocity and the temperature on the
separation of the nitrogen isotopes is investigated in a con--
ter flow column according to the reaction
N15H
+ N15H
+ N14H
,42 N1411
NO
N0
3(r)
3(p_p)
3(r)
4
3(P-P)
4
It is shown th,%t tho time for obtaining a otationary etate is
reduced with the flow velocity and thetamporature rise. It is
detected that an optimum flow velocity solution inlet, return
of the ammonia into the column reap.) exists under the condi-
tione prevailing in the device. At this optimum current veloci-
ty the maximum separation of the nitrogen isotopes is obtained.
It is shown that the total coefficient of -the isotope co 8 con-
trstion is reduced at an increase of temperature from 20 to
Card 1/2 40 (in all flow velocities investigated here) in order to

76-10-8/34
Separation of Stable Nitrogen Isotopes according to the Chemical Exchange
Method II.
increase then according to the further temperature rise. Such
a dependence is explained by thevariation of the concentration
coefficient at the cost of the simultaneous variaticn of the
equilibrium constants of exchange reactions occurring in the
column, of the exchange velocity and of the mole part of the
dissolved ammonia wi 'th the temperature. There are 8 figures and
3 Slavic references.
ASSOCIATIONs Moscow State University imeni M.V. Lomonosov
(Moskovskiy gosudarstvennyy universitet imeni M.V. Lomonosova)
SUBMITTEDs August 6, 1956
AVAILAB13i Library of Congress
Card 2/2

20-114-3-34/60
AUTIIOR$i Gorshkov, V. I., Panchenkov, G. M.
.............I......................................................
.

TITLEt .
........................ .
On the Mechanism of Ionic Exchange
(K voprosu o mekhanizme ionnogo obmena)
PERIODICALs Doklady Akademii Nauk SSSR,195/7,Volii114,11r 3,PP,575r578(USSR)
ABSTRACTs The existing conzopts of the mechanism of ionic exchange do
not offer any sufficient ideas with respect to the influence
of the conditions under which the reaction takes place, e.g.
of the temperature or of the solvent, upon the equilibrium
of ionic exchange. On the basis of rejultg obtained during
investigations of the equilibrium of ionic exchange, and also
on the basis of phenomena described in the relevant scieltific
publicaticna it may be possible to suggest the followingleon-
cepts of the process of cationic exchanget A resin repredents
an acid wi-Ah a high number of molecules. If immersed into a
polar solvent, e.g. into water, this resin is tonized as re-
sult of tle interaction with the molecules of the solvent.
But as the resin anions are connected with each other, they
cannot freely be distributed over the enti re volume of the
Card 1/4 solvent. Because of the effects of the electrostatic foroes,

On the Mechanism of Ionic Exchange
20-114-3-34/60
also the cations cannot propagate here. As -the result, an
"ionic cloud", is formed around the surface of the resinj this
"ionic cloud" has a relatively high concentration of cations.
In SOlutiOnS Of strong electrolytes, however, it is possible
that at concentrations of more than 0,05 N there takes place
an ionic association, an approaching of the contrary sign
under the influence of electrostatic forces. This phenomenon
must take place also for the cations and the anions of the re-
sin. It is possible that on the outer surface of the resin
there is formed a diffuse ionic layer with a. sufficiently
deep penetration ofeations into the solvent. In the interior
of the resin net, on the other hand, .-be thickness of the
diffuse layer - because of the mutual repulsion between the
opposed cations - is considerably thinner than the thickness
of the outer diffusion layer. This thickness is the thinner,
the vloser to each other are the dissociating group.9-. There-
fore it is possible, in a gereral case, to dearcibe the equi-
librium in first approximation as a process of two stages. If
the resin is broken into very small pieces or if it represents
a little polymerized product (the so-called soluble resins)
then the concentration of ions on its sufface will not be so
Card 2/4 high, and the equilibrium will be shifted quite considerably

20-114-3-W60
On the Mechanism of Ionic Exchange
to tho right. In this case, an "ionio cloud" is formed at
the particle surface. The paper under review then proceeds to
discuss the behavior of resin in weakly acid media, in al-
cohol solutions, and derives a formula that interprets a
number of mathematical interrelations which had appeared in
the course of the investigations of the equilibrium of ionic
exchange. The same metal has different constants for dif-
ferent resins; this can be explained by the different struc-
tur6 of the carbon skeleton of different resins. With respect
to sulphoresins and alkali elements in aqueous-alcoholic solu-
tions (up to 60 % alcohol), a linear dependence of 1g K on
1/D was obtained. The paper under review also discusses the
influence of alcoholic additions on the constant of acid dis-
sociation, and takes into accou:,,t the behavior of the acids
in solvents. There are 4 figures and 15 references, 9 3f
which are Slavic.
Card 3/4

20-114-3-34/6c)
.- On'the Mechanism of Ionic Exchange
I
ASSOCIATIONs Moscow State, University imeni M. V. Lomonol30V
(Moskovskiy gosudarstvennyy universitet im. M. V. Lomonosova)
0
PRESENTEDs ITovem*,)er 22, 195", by A. V. Topchiyevq Meml)er of the Academy
SUBMITTED: November 22, 1056
Card 4/4

AUTHORS: Fanchenkov, G. M. , Gryatnova, Z. V. and KuvshinnikOv, 20-n4- .6-38/54
TIME: Ionic Exchange on Aluminum-Silicate Catalysts in an Alkali
Current With Short Duration of Contact (Ionnyy obmen na
alyumosilikatnykh katalizatorakh v potoke shchelochi pri
malykh vremenakh kontakta)
PERIODICAL: Doklady All SSSR, 1957, Vol. 114, Nr 6, pp. 1276-1279 (USSR)
ABSTRACT: It was hitherto not possible to determine completely the
nature of the aluminum-silicate catalysts which are very
important for industry (references 1 - 9). The present work
studies the mechanism and the kinetics of the process
mentioned in the title under dynamic con6itions in an alkaliLe
(NaOH-, LiOR-, and KOH-solutions of various concentrations
and velocities of flow) and a neutral medium. For this purpose
the authors used the industrial catalysts (10 A12 03+ 86% Sio 2)
and (37% Al20 63% SiO ). Several portions were annealed
at 500, 750, fi'oo and 1390 C. Figures 1 and 2 give the
experimental results in an alkaline medium. Prom figure 1
follows that 4n ordinary saturation curve is obtained. Its.
Card 1/4 initial section is expressed by 2 straights with good

Ionic Exchange on Aluminum-Silicate Catalysts in an Alkali 20-114-6-304,"
Current With Short Duration of Contact
approximation. The value of the tangent of the inclination
angle (V) of the second section depends on the velocity of
flow and is proportional to the concentration of the
solution. The velocity of the ionic exchange also depends
on the degree of the previous heat treatment of the catalyst.
Based on these tests it may be stated that a catalyst with a
constant activity can be obtained by annealing at 50o - 700 0C
for at least 16 hours. Kinetic curves of the ionic exchange
of aluminum-silicate catalysts which were deactivated by
annealing at 1100 - 13oooC have no break in their initial
section. The most probable causn of the break in the kinetic
curves is the difference of the accessibility of the
exchangeable centers of the catalyst at the surface and those
lying deeper (within the pores and between the packs). In this
case the break might be explained by the completed
neutralization of the surface centers. Their number can be
g.raphically represented (table 2). In the case of sufficiently
low alkali concentrations (UP to 0,015 n) alkali is almont
completely neutralized by the hydrogen iona of the surface.
These ions are neutralized first, those lying deeper
Card 2/4 subsequently. A non-annealed catalyst has a maximum acidity

Ionic Exchange on Aluminum-Silicate Catalysts in an Alkali 20-1144)-38/54--
Ow,rrent With Short Duration of Contact
and possesses the maximum number of exchange centers in
general and especially at the surface. For an alkali
concentration of about 0,1 n part of the alkali is used for
the solution of the catalyst (reference lo). From the rejults
is to be seen that the slowest stage of the entire process is
the diffusion into the interior of the pores. In the point of
break, after the terminated surface-neutralization, the
velocity of exchange is determined by the diffusion into the
interior of the pores alone. Thus an abrupt change of the
velocity of process is the cause of the broken instead of the
slightly bent curves. This is confirmed by the ionic exchange
in the neutral medium. The break of the curves is absent
here, as the exchange proceeds about 103fold slower. It is
also absent in the curves of a crushed catalyst, which also
furnishes a confirmation of what has been said. Thus one
comes to the conclusion that the concentration of the outer
active centers on the aluminum-silicate catalyst may easily
be determined when it is neutralized with an alkali solution.
The method is, however, only usable when the velocities of
Card 3/4 the ionic exchange at the surface and in the interior of the

Ionic Exchange on Aluminum-Silicate Catalysts in an Alkali 20-114-6-38/54
Current With Short Duration of Contact
pores are highly different. Thus it is not suitable for all
acid and oxide catalysts. There are 2 figures, 2 tables,
and 11 references, 8 of which are Slavic.
ASSOCIATION: Moscow State University imeni M. V. Lomonosov (Moskovskiy
gosudarstvennyy universitet imeni M. V. Lomonosova)
PRESENTED: January 19, 1957, by A. V. Topchiyev, Academician.
SUBMITTED: January 9, 1957
Card 4/4

iN1CJiEW09
f the polymerization or' A104/AI29
Thermodynamic conditions 0 02- (2)
111 Keq RT ion (2) produces
of FCiuatioll (1) in Equat, A2~gq-s (3)
Subst~it`lt'on tial propylene can
-~E ~D- + Li.
.:j- 2.3 f tIae in di-
ig I~eq '2.3 -Tt of the
Version 0 moment
agree Of co' t-iie eWlilibriuln jonal to
Alibrium yield or the de T - F - At and A2 moles is proport
The dimer eq, ith the help of giventity of Al
be determined V L 2A it;A 2 1 the qu, an (4)
merization reactl On 2-"' -bri:am'
j,e.
and ,
r~ eq = 7~p'- ~Irx is linked to its specific pressure equill
-version depth (5)
that con -ion
n.1 ell 61
now. P of rear;i,
-onstant Product A -- I~eq Val"e A ell
based on dependency equilibrium collsta]~,t. reveals me
,.jC
,ot,.n,
,ily be L and
ar, can ea
owledse, Of Ine -isobar
C ard 2/ 4
3/165/60/000/003/001/009
T-hermodYnamic cOndt'Ons-Of the polymerization of- A104/A129 rcumstan-
cess which might$ under adverse ci
the principal possibilities of the pro Higher temperatures and the use of cata-
ces, progress at extremely low speed. process. Approximate estimatiOn
lusts are inevitable for the acceleration of the tion method
of the trimer &ndtetramer reaction can be obtained by the monotype reac sical
described by A. V.Kireyev, [Ref. 2; Kurs fizicheskoy khimii (Course of PhY
Chemistry), Goskhimizdat 1955) according to
6HO-:- Ho (6)
Ig Keq,2 . ig Keq,l + 2-3-R-T
whic Ih enables the d .etermination of the equilibrium constant Of r6action 2 to be
made if the eqUilit)rium constant of reaction I and heat content variations of both
reactions are known. There are two monotype reactions:
Al + A, g' A2 reaction I
A2 + A, 64- A 3 reaction 2
Reaction I shows the dimerization reaction. Determination of the thermal effect
+lip temDerature necessary for the,formation of the final product.. The
be estab-
..tate can

S/165/60/000/003/001/009
Thermodynamic conditions of thepolymerization of... A104/A129
lished on the basis of typical numbers and the addition of corrections in respect
of various groups as per molecule of the compound.' Equilibrium yield values of
trimer (or tetramer) reaction A + B is determined as
:k(2-x)
Ke = . A Keq 1) (7)
q p.(l-x)2'
i.e., the equilibrium moment of thelquantity of moles in the derived substance C
is proportional to x and that of A and B to 1 - x; total quantity is 2 - x. The
th6oretical yield of trimers and tetramdrs is determined accoirdirig to auxiliary
quantity values. Resulting values of equivalent constants and equivalent yields
of trim'er and tetramer reactions reveal t'hat the polymerization of propylene pro-
duce's satisfactory yields of: dimers at 250 ~- 300OC; trimers at 200 - 2a-)OC;
tetramers at 150 - 1800C. 'There are 6 tables, 1 figure and 4 references: 3 Soviet-
bloc and 1 non-So-Viet-bloc..-
ASSOCIATION: Moskovskiy in5titut neftekhimiaheskoy i gazovoy promyshlenosti Im.
Gubkina (Moscow Institute of PArochemical and Gas Industry 1m.Gabk1n)
SUBM1T-'.rlM- December 24, 1960
card V4

8/165/60/000/003/OOP,/009
A104/A129
AUTHORS: Karryyev, Ch. S.; panchenkov, G. M., AlItshuler, S. V.
TITLE: Kinetics of the'polymerization of propylene by aluminum silicate
and oxide catalysts
PERIODICAL: Akademiya nauk Turkmenskoy SSR. Izvestiya, Seriya fiziko-tekhniches-
kikh, khimicheskikh i geologicheskikh nauk, no. 3, 1960, 33 - 37
TM: This paper was read at the All-Union Conference on organic Catalysis
convened 3n November 16 - 20, 1959, in Moscow, and deals with results of investiga-
tions of the polymerization of propylene by aluminum silicate and oxide catalysts,
carried 6ut in view of its importance in petroleum processing-ahd in petrochemical
industry. Tdsts'were performed at atmospheric pressure,*'temperature rangeg from
100 - 3000C and a volumetric velocity of gas supply of*'20*- 400 per hour-1. The
following catalysts were subjected to investigation: aluminum silicate with vary-
ing cofitent of oxidizing components; aluminum silicate'with nickelous'and chromic
oxides; - molybdenum oxide and nickel -molybdenum oxide based on' alumina. Tests were
carried out in an installation Consisting of a furnace f6r''obtAinihg'propylene by
dehydration of pure isopropyl alcohol over active alumina at 3500C, and a special
Card 1A

_\j
S116516010001003,10021009
Kinetics of the polymerization of... Aio4/Ai2g
polymerization device. The gas supply was measured by a rheometer and the copsump-
tion by a FCB-400 (GSB-400) gas meter. Before entering the reactor the gas was
dried by calcium chloride., All tests were accompanied by an increase in temperatum
caused by the exothermic nature of the process. Before and after each test the in-
stallation was blown through with nitrogen and the original activity of the cata-
lyst was restored by air scavenging at 5000C. After stabilization the polymeride
was distilled into dimeric (12590), trimeric (125 - 1700C) and tetrameric (170 -
2200C) fractions whereas the residue obtained over 2200C and the condensation pro-
ducts.comprised the fraction of ~'higher polymers". Then the following features
were determined: density, content of hydrogen, and the content of saturated and un-
saturated hydrocarbons for the initial gas, and the density, refraction coefficient,
molecular weight and bromide content for the polymeride fractions. The most advan-
tageous temperature for aluminum silicate catalysts is 2000C. At this temperature
and a gas supply rate of 20 - 50 per hour-I a maximum depth of propylene conversion
was reached (45 - 55%). The respective yields of polymeride fractions were as fol-
lows: dimer-23 - 24%; trimer 9 - 11%; tetramer 9 - 12%. Temperatures over 22ORC
and a gas supply rate exceeding 60 per hour-I decrease the c9nversion depth and the
polymeride shows a higher content of dimer fractions and a lower content of trimer
Card 215

Kinetics of the polymerization of...
S11651601WO1003,10021(Y)9
AiAA129
and t6tramor fractions. Investigation into the polymerlidtion capacity of aluminan
silicates with varying content of oxidizing components carried out at 2000C and at
&'gas supply rate of 20-` 50 per hour-1 revealed the superiority of catalysts con-
taining 10 - 15% alumina. They showed a maximum conver6-16n depth (55%) and higliest
yields'of dimeric, trimeric,and tetrameric fractions, i.e., 24, 10 and 12%, re-
spectively. Increase in the alumina content over 20% leads'to a decrease of con-
version depth, reducing the yield of dimeric, and increasing the'yield of trimeric
and tetrameric fractions. Tested separately, neither pure alumina nor silica re-
vealed any catalyzing ability under described conditions. Results of tests on the
polymerization of -propylene'by aluminum silicate catalyst- consisting of 50% A1~03
f
+-5p% Sio 'at 180 200 and 2200C,'atrhospheric Pressur& -and at'a gas supply rate o
:20 - 1 2 -1 published by G. M. Parichenkov (Ref. 13: 1
60 per hour zvestiya AN TSSR, no.
2) 1960) showed''that a maximum conversion depth (35 - 37%k And highest yields of
almeric.(10 - 11%), trimeric (8 - 9%) and tetrameric (9 -:10%) fractions were ob-
served at 2000C and at a gas supply.of 20 - 30 per hour-1. The dimeric fraction
was subjected to -a' spectral-a.nalysis and showed a coint6fit,-of.cis-hexene-2, trans-4
methyl pentene-2 and cis-4 methyl pentene-2. The presence of trans-hexen6-2 and
other hydrocarbons was presumed but could not be''conclu .sive ly established. In ac-
cordance with thermodynamic calculatiom and obtained results, the pol3nnerizetion
Card 3/ 5

S/165/60/000/003,/002/009
Kinetics of the polymerization of... AloVA129
There are 16 references: 11 Soviet-bloc and 5 non-Soviet-bloc. The referencesto
the English-language publications read*as follows: H. Gayer, Ind. Eng. Chem.,
v. 25, 1933; A. Clark.,' Ind. Eng. Chem., v. 47, no. 7, 1953; E. W. Tamele, Dis-
cuss. Faraday Soc., no. 8, 1955; C. L. Thomas, Ind. Eng. Chem., v. 37, no. 6,
1945 and v. 41, 1949.
ASSOCIATION: Moskovskiy institut neftekhimicheskoy i gazovoy promyshlennosti im.
I. M. Gubkina (Moscow Institute of Petrochemical and Gas Industry im.
I. M. Gubkin)
SUBMITTED: December 24, 1959
Card 5/5

S/152/6C/000/003/001/003
B023/Bo6o
AUTHORSt Panchenkov, G. M., Kolesnikov, I. M._
TITLE: Reaction Kinetics of the 'Alkylationlof Benzene With Methyl
Chloride on an Alumosilicate Catalyst
PERIODICAL: Izvestiya vvsshikh uchebnykh zavedeniy. Neft' i gaz, 1960,
No. 3, PP. 59-62
TEXT: The authors wanted to study the applicability of kinetic equations
set up for bimolecular, irreversible, heterogeneous, multiple-series
reactions, for the purpose of interpreting experimental data concerning
the alkylation of benzene with methyl chloride on an alumosilicate
catalyst. The purpose of the alkylation reaction was the production of
toluene. Basing on kinetic data of an earlier paper (Ref. 2) the authors
presuppo3ed the alkylation reaction to have the following course:
k k11
2
A + B - i__~ A1 + B + E ~ 11 1A2 + V2A 3 + E, (1)
where A - benzene, B - methyl chloride, E - hydrogen chloride,
Card 1/4

the klkylat' on of
111oriae on an
ileaction Kinetic 1
'With Met
s/152 6,/,,00/003/ool/003
B023YI060
the
ants f or V
const
at"
'Benzene
,lu.,,ilicate (;atalYst 11coke"s k I1 9 r toichiometric
k - xylenOst k 3 - nd Vit Id2are me (1) the
toluene9 2 ep, resP ectivelY7 a -irmi-119 sche
second St ating ana OOnf of kinetic
the tanti aj d lowing
rat and - (JIG
fi 'With a View to oubs f " 2) with the the fOl
coefficients- data of paper.... as calculated by . On j
he,kea the toluenel is the convers'
authors 0 (Rof'. 1)~ The where 11 lion Co-
equatiOng I
f ormul"'. i y k#2bk- ; bkJ9 b kare aaeorP-
k1i D'~ is the Yield Of
degree Of benzene e and benzene, respectively; )ch, onstant for
efficients of toluen The value 0 f the apparent rate C
referred to benzene. IC 1-1) k10BP2S0 2, and
toluene
0 be k + r+ b kp b B-pI
tile first reaction step was found t 1 k
Card 2/4
Reaction Kinetics of the Alkylation of s/152/60/000/003/001/003
Benzene With Methyl Chloride on an B023/BO60
Alumosilicate Catalyst
that of the second step, k" = k'1b AS 0
2 1 the same denotat-ions holding for
X K, b , b , and xAj as in (2);
0; Al A r is the ratio between the mole number
methyl ohloride and the mole number of benzene introduced into the
reaction zone in the unit time. So is the area of catalyst per unit of
length of the layer in the direction of current. Basing on the dependence
of temperature on the apparent rate constants of the alkylation reaction
described (Fig. 2), the authors found the values of the apparent activa-
tion energies and those of the factors of the Arrhenius equation for the
respective reaction steps. For the step of toluene formation from benzene
and methyl chloride, the apparent activation energy was 17400 � 400 callmle,
and the factor of the Ar-henius equation was looo-4 mo:Le/cm3h. For the
second step - formation f xylenes.from toluene and methyl chloride - the
apparent activation-energy was.120,00 t 300 ~al/mole, and the factor was
3
65 -_mOle/em h.'- -In the authors' opinion, the reaction scheme is confirmed by:
agreement of experimental data with such calculatP8 'h,,

86145
S/' ry6o/000/004/OC' /003
Bo~~f B054
6) v, V V. and panchenkov? G- M,
AUTHORS: Makarenkov~ V. V
Relationship Between the Rate of Combustior- of Individual
TITLE: Hydrocarbons at Lcw Pressures and Their Antiknock
properties
tiya vyBshikh uchebnykh z-aveden"y. Neft' i gaz, 1960,
PERIODICAL: Izves I
140. 4, pp. 81 - 64
TEXT: In their previOus report (Ref.1), the authors had described the
combusj-ion of gas mixtures in the burner in a laminar flow at low pres.-
sure (150 mm Hg). The data obtained can be Goopared with the octane
values of the corresponding hydrocarbons indicated in publicationsg which
jr.~XfoT .1.1 as for
might be useful for the se3ection Of Sue engines? as we
developing a theory of the rate of combustion. In the PT~jviOUS Teport
(Ref.1), the authors proved that a relationship exists between the rate
of combustion of hydrocarbons forming part of engine fuels and the~~:,
stxucture. The physical meaning of a comparison of zates of~ombustiozn
and octane values is the establishment of a relationship between the
Card 1/3

Relationship Between the Rate of Combustion
of Individual Hydrocarbons at Low Pressures
and Their Antiknock Properties
86-145
S/i 52 /6C)/(,-jOC AM41001 /003
BOOI/BO54
rate of combustion of hydrocarl-vtii3 in z--.ormal buroing and th,i trans"t.1011
of normal burning to detonation burning. Hyd-1,oca-.1--ons with 6-'io carbon
atoms in a molecule were used for this comparison. The rate of coz-
bustion was compared with the antiknock properties both for homologous
hydrocarbons and for hydrosarbons belonging " o different ;lasses of (~Om-
pounds. The rates of (.ombustion of these hydrocarbons were estimated on
the basis of complete combustion at equal distance from the flame tip of
the Bunsen burner. The authors used n.--hexane, n-heptane, r-octanaj and
n-decane fox this purpoze. The dvpenden~.e of oomplete combustion of
'these hydrocarbons on theiT octane values is shown in the diagram. Hen.:.e,
it can be seer, that 1) this dependence is expresaed by the equation
z = a + bQ, where 7 z = the complete 3ombustion of hydrocarbons with
6-10 carbon atomr* in a moleoa',.a~g - the cctarr- value. of these hydro-
oarbonaj and a and b are coeffficient,8; 2) the ratle of -.oobuati.on in--
creases with decreasing molecular wGight, while the ar-tiknock properties
im?rove. The authors compare n-cctane~ isooctane, and 3-methyl heptane.
Hence, it follows tha-~ 1) isooc~tanes have, a higher rate of combustion
Card 2/3

86145
Relationship Between the Rate of Combustion --/-,52/60/000/004/001/003
of Individual Hydrocarbons at Low Pressures BOOI/BO54
and Their Antiknock Properties
and better antiknock properties than the corresponding alkane8, and
2) isoalkanes with higher rates of oombustion abow better antiknock
properties. A comparison of unsaturated hydrocarbons with the corre-,
sponding saturated compounds showed highez, combustion rates and better
antiknock properties of the former. In compounds of different structures
but with the same carbon number (n-C 6H12' cyclo-06HI2' C6H6 ), higher
combustion rates also corresponded with better anti-knock effects. There
are I f1gure, 1 table, and 4 Soviet references.
ASSOCIATION: Moskovskiy institut neftekhimi4~heskoy i gazovoy
promyshlennosti im.akad. I. M. Gubkina (Moscow Institute
of the Petrochemical and Gas Industry ideni -Academician
M.
SUBMITTED: January 26, 1959
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S11;:2 '601000/005/001/002
BO X10,54
AUTHORS; KaLr Y~ev, Ch. S. and Panchenkov, G. M.
m
TITLE: Polymerization of Propylenelby Alumosilicate Catalysts Of
Diffe.rent ~O_Mpevsi tions
PERIODICAI~ Izvestiya vysshikh.. jahebnykh 7.avederiy. Naft~ i gaz,
Vol. !960, No. 5~ PP. 87-91
TEXT; In earlier papers (Refs. 14,15) dealing with the polymerization of
propylene by alumcsilioate oatalysts in a cracking procedure under
~itmospherio pressure, 1n a temperature range of 100-3000C. and at gas
addition rates be"~ween 2~O and 20.0 liters per hour, the authors had
found that the optimum temperatire at lew gas addition rates (2.0-8.0
liters per hour) was 2000C. in the present paper, they describe the
results of propylene polymerization by the above catalysts of different
compositions to find the best ratio between the aluminum.- and silicon
oxides in the catalysts under the above optimum conditions (for further
details, see Ref. 14). The individiial alumosilicate catalysts were
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'0/00c
Folymerization of Propylene by / ..' 0 j/00.1'002
Alumosilicate Catalyats cf Different BSO'01=1~B'C'/Or
054
Compositions
Me4
pT.epared by the shod of G. M. Pan-Aenkov and K. V. Top,,~hiyeva (Ref. 16)
which is based on a separate precipitation of the aluminum- and oilloc-n
hydroxides, wid their a-ibsequent m,,xing. The pclymerization of propylene
at 200(-C, under atmoepheric. preFsurev and at, a gas addition rate between
2.0 and 8.0 liters per hour, was conducted by catalysts of the f ollowing
oompositiona:
1) 0 % Al.. 0 100 % Sio- 4) 30 % A100 4 70 Y, SiO
3 9
If
2) 5 % Al 203 95 % S--k.02 5) 50 % Al 203 + 50 " SiO2
71) 110 % Al2034 90 % SiO 2 6) 100% Al 203 0% Sio2
Under these conditions, the catalysts cf type 1 and (s-Ilica gel and
aluminum oxide) gave no propyiene polymerization (even at temperatures of
1700 and 15000)y which oonfirms the results of Refs. 13,16,17,18,
aGeordirg to which only ahemically bound aluminum- and silicon oxides
show a oatalytio activity in various reactictna. The other types
Caxd 2/3

S/152 60/000/008/006/007/xx
B004/B064
AUTHORS i Baranov, V. Ya.
T'L"7LEt The Kinetics of the Thermal Cracking of Petroleum Products
PERIODICAL: Izvestiya vysshikh uch6onykh zavedeniy. Neft' i gaz, 1960,
No. 8, PP. 79 - 86
TEXT: The authors report on the thermal cracking of the fraction
310 - 4100C of the paraffin containing Groznyy 0petroleum. The experiments
were carried out at 510, 540, 570, 600,and 630 C. The experimental data
were evaluated by means of equations obtained in the course of previous
studies (RefB.7-9). nox = -(A/B)noln(l - x) - k'pVr/BR2T2 (2) is written
down as radical-chain mechanism for the reaction. n denotes the moles of
0
the initial substance introduced into the reaction zone in the unit time;
x is the portion of the initial substance entered into reaction,
A,B: constants, k' is the rate constant of the reaction, p - the total
gas pressure, Vr - the volume of the reaction zone. For the function
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The Kinetics of the Thermal Cracking of S/152/60/000/008/006/007/XX
Petroleum Products B004/BO64
n0x - ffn 0ln(l - x)] a straight line with the tangent A/B was obtained.
k' was calculated by the equation k' - -ADn 01n(1 - x) - BDn0x (8), where
D - R2T2/pvr. A table gives the following values for the coefficients of
the equation (8):
T00 A/B-- D-10-4 k1-103 sec-I On the assumption o" a consecutive
510 0-956 6-87 2.64 reaction the following equation was
540 0-878 7-41 10.90 derived: K
570 0-850 7.96 34-40 XA - IV3/(l-K)][(l-x) -(1-x)] (3).
600 0.665 8.54 34-80 3
63o o.6o4 9.13 49-70 V3 is the stoichiometric coefficient
of the reaction product A 3' K . k2/k, is the ratio of the reactioA rate
constants of the first and second stage of the reaction. This equation was
graphically solved. The activation energy of the first stage was found to
be 56,400 cal/mole, of the second to be 67,000 cal/mole. Between
510 - 5700C, the temperature coefficient of the first stage is 1.53, of
the second 1.66. A. D. Stepukhovich is mentioned. There are 5 figures,
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The Kinetics of the Thermal Cracking of S/152/60/000/008/006/007/XX
Petroleum Products B004/BO64
I table, and 9 referencest 6 Soviet and 3 us.
ASSOCIATION: Moskovskiy inatitut neftekhimicheskoy i gazovoy
promyshlennosti im.akad.I.M.Gubkina (Moscow Institute of the
Petrochemical and Gas Industry imeni Academician I.M.Gubkin)
SUBMITTEDt july 6, 1959
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S/065/60/000/011/001/009
E030/E412
AUTHORS: ---Panchenkov, G.M., Zhorov, Yu.bl. and YuY-lin'--,- Yu
TITLE: Features of the-Catalytic Cracki4of Heavy Distillate
PERIODICAL: Khimiya i tekhnologiya topliv i masel, 1960, No.11
PP-4-7
TEXT: The kinetics of catalytic cracking of heavy gas oil
(IBP greater than 5000) from Romashki crude have been determined
from plant data. The process is important for supplementing
light gas oil which is in short supply for catalytic cracking.
Four types of alumina/silica catalyst were tried, with BET surface
areas from 305 to 480 m2/gm. The reaction was found to occur in
conditions intermediate between those controlled by internal or
external diffusion, and the specific surface area had only a
slight effect. It is therefore desirable to use catalysts with
a high macroscopic surface area, although they may have a low
index. Maximum yields of liquid (boiling up to 2600C) were
about 40% at space velocities of 0.6 to 0.7 V/V/hour, but the
yield fell as the reaction temperature exceeded 4000C, due to
external diffusion control. The activation energy was
10.3 kcal/mole at 400 to 4320C but fell to 7.6 kcal/mole at
465 to 490*C. This fall indicated that external diffusion is
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5/065/60/000/011/001/009
B030/E412
Features of the catalytic Cracking of Heavy Distillate
present but it could not be completely dominant or else the
activation energies should have been much lower, around 2 to
5 kcal/mole. Further, the cracking must be mainly catalytic,
since only about 3% of the raw material would have been thermally
cracked at these temperatures, according to published data on
thermal cracking. The quality of the product is determined by
the side-reactions. The reaction could be improved by using a
higher velocity of feeding the raw material, and use of a catalyst
with lower activity but greater macroscopic surface area, that is,
more finely pelleted (about 0.3 mm size for example). There are
4 figures, 2 tables and 9 Soviet references.
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S/081/61/000/020/074/089
B106/B147
AUTHORS: Panchenkov, G..M.-, Koleanikov, 1. 11.
TITLE; Reaction kinetics of the alkylation of benzene with
propylene in the presence of an alumosilicate catalyst
PERIODICAL: Referativnyy zhurnal. Khimiya, no. 20, 1961, 320, abstract
20L41 ((Tr.] Groznensk. neft. in-tj i3b. 231 1960, 106-120)
TEXT: The alkylation reaction of 0 6H6 with propylene in the presence of
an alumosilicate catalyst at 260-345q and atmospheric pressure was studied.
The kinetic equation for the bimoleoular irreversible consecutive reaction
was derived. On the basis-of this equation, the values of the apparent
rate constants were found for the stages of isopropyl benzene and
diisopropyl benzene formation. From the temperature dependence of the
apparent rate constants of~the first and second reaction stages the values
of the appe~rent activation energies mere found to be 14,300 and
12,600 cal/mole, respectively. There are 27 references. [Abstracter's
note: Complete translation.]
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