SCIENTIFIC ABSTRACT MOCHALINA, I. G. - MOCHALOV, K. N.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R001134820011-0
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Sequence Number: 11
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

ACCESSION'NR: AT4033995
-the feasibility of trans- and cis-configurations. Orig. art. has: 2 tables and
numerous chemical formulas.
ASSOCIATION: Koskovskly gosudarstvenny*y universitat Imo M. V. Lomonosova
(Moscow State University)
SUBMITTED: 31JuI6Z DATE ACQ: 3QApr64 ENCL: 00
SUB CODE: OC
NO REF SOV: 005
OTHER: 001
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ACCESSION NR: AP4042188 S/0190/64/006/007/1267/1271
AUTHOR: Terentlyev, A. P.; Mochalinap 1. G.; Rukhadze, Ye. G.;
Povolotakaya, Ye. H.
TITLE: Study in the series of polymeric chelates. X. Some
physicochamical studies of polymeric chelates based on thio amide
and poly(thio amide) derivatives of pyridine
SOURCE: Vy*sokomolekulyarny*ye soyedineniya, v. 6, no. 7, 1964,
1267-1271
TOPIC TAGS: polymeric chelate. thiamide pyridine derivative.
polythiamide pyridine derivative. Cu, Ni. Co, Zn, polymeric chelate
property, chelate group structure
ABSTRACT: The properties of the following Cu-, Ni-, Co-, or Zn-
containing polymeric chelatea have been studied.
:Cord 1/4

ACCESSION NR: AP4042188
n N
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A': - 11 (IV); W: - cll. (V)
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Caro 2/4

ACCESSION NR: AP4042188
The polymers are fine. colored amorphous powders which are soluble
only with difficulty. They dissolve most readily in dimethyl-
formamide, chloroform, and benzene; the beat solubility is exhibited
by polymers with metoxy groups in the backbone. The polymers are
attacked by acids but are resistant to alkalis. They lose 5-15Z
of their weight on heating to 200C and 20-80% on heat%.ng to 400C.
Comparative studies showed that polymers with a higher solubility
have a lower chemical and thermal stability. The density of polymeric
*chelates varies from 1.27 to 1.60. They are dielectrics at room
temrerature; at 383K the highest electrical conductivity (10-10to
10- 'ohm-lcm-1) is exhibited by Cu-containing polymers. Catalytic-
properties are inherent only in Cu-. Ni-, and Co-containing polymers.
Their catalytic activity surpasses by two orders of magnitude that
of inorganic Cu semiconductors. The nature of the band in the chelate
group, as determined from x-ray absorption spectra, is -C-S-Me.
Orig. art. has: 3 table,s.
ASSOCIATION: Moskovskiy goaudarstvenny*y universitet im M. V,
Lomonosova (Moscow State University)
Card 3 / 4

.- 1 1.
ACCESSION NR: AP4042188
SUBMITTED: 02Aug63
SUB C-ODE: oc, Gc
I
ATD PRESS: 3073
NO REF SOV; 006
ENCL: 00
OTHER; 002
Card 4 / 4 - .1,\

KOCMINA, KJO: rZIMT. I.N.
~--
Bleaching color-woven zephyr with hydropn percxide. Obm.
toycheopyt EMLPI no.100-7 156. (NIU 11:11)
(Bleaching) (Erydrogen peroxide)

KOCHALINA, X.N., iazh.; KALIGHMMO, V.Te., tarh.
,2W
,1:4~.,4.&
Using dyes to determine ripeness of cotton. Takst. Drom. 18
no. 7:5D-51 Jl 158. (KIRA 11:7)
(Cotton-Tasting)

MOCHAL121A , L. Yu,
Use of "Betanol F" as alls::~ . ---
. e'rsimg agmt In d;~- -5 . - - Vat
dyeso Lehe prom, no,-'a2l CP - D - &I* (MI.RA lezi)

82041
S/062/60/000/02/04/012
BOO3/BO66
AUTHORS: Knunyants, 1. L., Dyatkin, B. L., german, L. S.9
Mochalina, Ye. P.
TITLE; Reactions of Flucro-olefins. 12th Report. Interactions of
Folyfluoro-chloro ButeneslWith Alcohols
PERIODICAL: Izveatiya Akademii nauk SSSR. Otdeleniye khimicheskikh nauk,
1960, No. 2. PP- 231 - 236
TEXT: The authors investigate the action'of sodium methylate and
ethylate on linear dimers of 1,2-difluoro-1,2-dichloro ethylene and
trifluoro-chloroethylene. The experiment is described in detail In the
experimental part of the paper. The structure was clarified by means of
infrared spectrography. The investigations revealed that the reaction
of 1,2,3,4-tetrafluoro-1,3,4,4-tetrachloro butene-1 with the alcoholaten
mentioned yields 1,1,1-trialkoxy-2,3,4~-trifluoro-4,4-dichloro butepe-2.
When treating the linear dimer of trifluoro-chloro ethylene with the
alcoholates, 3-alkoxy-4-chloro-perfluoro butene-1 results. The linear
dimer of trifluoro-chloro ethylene was identified to be a mixture of
Card 1/2 ), 6111

Reactions of Fluoro-olefinij. 12tn Report. S/06 A6010010210 4/012
Interactions of Polyfluora-chloro Butenes BOO3/BO66
With Alcohols
3,4-dichloro-perfluoro butene-1 and 1,4-dichloro-perfluoro butene-2
(with the latter being predominant). There are 1? references. 4 Soviet,
10 American, 1 Belgian, and I German.
ASSOCIATION: Institut elementGorganicheakikh soyedineniy Akademii nauk
SSSR (Institute of Elemental-organic Compounds of the
Academy of Sciences USSR)
SUBMITTED: july 4, 1958 (initially)
July 31, 1959 (after revision)
Card 212

YdIUNYAN'rS# I.L.; GEIU.IAN# L.S.; DYATKINq B.L.; MOCHALINA, Ye.P.
Condensation of 192-difluoro-lg2-dichloroethylene witb formaldebyde.
Zhur.VKHO 6 no.1:114 161. (MIRA .14:3)
1. In5titut elementoorganicheakikh soyedineniy Akademii nauk SSSR.
(Ethyleno) (Formaldohyde)

25481
S/02
16,0 B1 0 3YB2'26
AUTHORS: Dyatkin, B. L., Mochalina, Ye. P., and Knunyants, I. L.,
Academician
TITLE: Condensation of formaldehyde with perfluoro olefines -
tetrafluoro ethylene, hexafluoro propylene, at.d trifluoro
chloroethylene
PERIOPICAL: Akademiya nauk S33R. Doklady, v. 139, no. 1, 11c"', 106-103
TEXT: The autLors cortinued the invezitigation of cl,lorcsulforic acid a.-. a
catalyst of 11. Prins' reaction (Ref. 1: Rec- trav. 51, z16)
and endeavored to use this acid -Nk~en extending 'the Prins reaction tr,
perfluoro olefines: tetrafluoro efhylene. hexafluoro T;ropylere, an(I
trifluoro chloroothylene, in their interaction with fofmaldei,yde- A s i s
known, the Prins reaction belon~,rs to the typical reactions of Lydrocarl,on
olefines with electrophile reatentF; especially, in thir, case, the
condensation with formaldehyde in the 'pr,~tsunce of stron,-- j c i d.9 1 s m F-- 7tr! t
Such reactions are very difficult and, therefore, little investi.;~ted. The
authors demonstrated 17y means of 1,2-difluoro-1,2-dicliloro ethylene th.~-t
Card 1/~

25481
S/O 20161 /1 /00 1 1 1 F,
Condensation of formaldehyde- B105/B22r,
both chlorosulfonic and fluorosulf-nic acid are in this c~--~ze Ll,hly
effective catalysts of the Prir~s ri.,~ictiun, ehile H2so4 of various
concentrations could not releasp this reaction (I. L. Knunyants ~t u1.
Ref, 5: Zhurn. Vsesoyuzn . khirr- ob3hch. im. IV end e I eyeva. 114 ( 1(?t, I)).
It has been nroved that a mixture of tctrafluoro eth.yii:ne CF 2 -
paraformaldehyde, and chlorosulfonic acid, fleated up to 10C)C,-,, is subject
to a condensation according to the general schume of tne Prins reaction,
and yields CK^-difluoro hydracrylic ucid which is isulLited as its ethyl
ester. As the yield of tills e~ster was (- 6 ~, the autiors w~-re of' tLe
oDinion that chlorosulfonic acid is :j.uc~. more active than E 2so 4' The
condensation of paraformaldehyde with hexafluor-o propylene leads in the
presence of chlorosulforic acid at 130 - 150 0C to a Zl-%, yield of
X-fluoro-o~-trifluoro methyl hydracrylic acid:
CF CFCF + CH 0 + H 0 Flir CF CFCH CH2-FCDOE
2 2 2 2- 20H] H;-
I I
CF Ur,
3
Card 2/5

25481
S/O 2016 1/13 9 /0o 11/0
Condensation of formaldehyde ... B1 0 3//B226
The formation of this acid is in accord with the polarization of the double
4+ 4-
bond in hexafluoro propylene CF 2 - CF-CF 3* The double bord in 'IF 2 - CFCl
is polarized such that a partly negative charge is present on the carbon
atom of the CFCl gr)'Ap. This has been repeatedly confiraled hy rejcti~-,ns
of rucleophi le addi t5.ons to CF 2 - CFC1. In the final result only derivutives
of fluoroacetic icid are produced. Thus, the condensation of formaldehyde
with trifluoro chloroethylene could be expected to lead to 0(-flaoro-rj(-chloro
A- A+
1;ydrac-iZft a c i d: HOCH++ CFCl = C~
2 2 [HOCH 2CFLCFY-~o ) HOCH 2CFC1 ICOH.
This acid has actually been isolated as its ethyl ester, TLe yield amounted
to 19.8 ~~ of the theoretical one. HoNever, beside this yield, anotLer
30-5 ~a of ethyl ester of oe,CK-difluoro hydracrylic acid have been prodced.
Its formation can be only explained as a result of the electronhile attack to
the C F2group, i.e., to a negativ,!Ly pol~,riz~A carbor, at,;r, %)rc., weiik.
than is the case with the C atom in the .'FC1 group of trifluoro ci~loro-
ethylene. I. L. Knunyants. V. V. Shokina and Li ~
1hih-ydan (Ref, o: DAN,
Card 3/5

25481
5/0 2016 1,'1 0~1'~31 C 1 -
Condensation of formaldehyde ... B 10 z)IB2 26
136, 611 (1961 ) ) observed two types of orientation in the ada i t 1~,r, of ! Oline
chloride to trifluoro chloroethyle!.e:
CF2= CFC1 + Icl--)CF2I - CFC12 4- CF;)Cl- CFC1I.
It could not be found out whether this reaction is reieased by the ionic or
by the radical mechanism. However, in tile condensation with formaldehyde,
an orientation being opposed to polarity appears in a oronouncei ionic
process, viz., that of the eleotrophile acidition to the double tond. The
authors try to explain this phenomenon by the competition of the polar and
steric factors. The effective radiua of F is 1,25 R, that of C1 1.58 R.
Thus, the orientation of reaction which corresponds to polarity m,~ets a
great steric hindrance. The steric and polar factors, however, agree as to
their effect in the nucleophile addition to trifluoro chloroethylene. Due
to this fact, orientation in thu.3t~ reactionshas to Le ~1 rigorouslY
unambiguous one. There are 9 reference,,i. 2 Soviet-bloc and 7 non-Soviet-
bloc. The three references to Enf~lish-language publicatioriB refid as
follows; 1M. 5. Raaach.(Ref. 2: Am. pat. 2452791); D. D. Coffman et al.
(Ref. ~: J. Org. Chem. 14, 747 (1949)); E. T. McBHe et Fil. (Ref. 4: J. Am.
Chem. Soc., 74, 444 (1952)).
Card 4/5

2~81
S 020/61/139/00,/C)11/018
Condensation of formaldehyde ... B103/B226
ASSOCIATION: Institut elementoorganicheskikh soyedineniy Akademii nauk
SSSR (Institute of Elemental-organic Compounds of tYe
Academy of Sciences USSR)
SUBMITTED: March 2~1, 1961
Card 5/5

397911
S/062 62/r,00/008/014/016
BI ON 80
AUTHORS: Knunyants, I. L. , 'Dyatkin, B. L. , and Mochalinap P.
TITLE: Anionotropic rearrangement in reactions of pe-rfluorobutadfaie-
PERIODICAL: Akademiya nauk SSSR. Izvestiya. Otdeleniye khimicheakikh-
nauk, no. 8, 1962, 1483-1484
TaT: The additipn of nucleophilio reagents (e.g. alcohol) to
hexafluorobutadiene-li3 in the presence of triethylamine was investigated
at 800C. As oxidation of the addition compound with permanganate gives
trifluoroacetic acid, while hydrolysis with H2SO4gives trifluoroacetone,
it is assumed that the primary addition occurs in the 1,2 position, and
that the presence of the triethylamine causes an allyl rearrangement:
CF2-CF-CFHCF20R --9,CF3CF-CHCF20R. This was proved in that the dialkyl-
amidea of a-hydroperfluorocrotonic acid (II) were obtained from the
dialkylamides of a-hydroperfluorovinylacetic acid in the presence of
triethylamine as was the diethylamide of (II): .b.p. 61-620C/7 mm Hg;
TIL20 1.3983 dh 1.2010. Oxidation of this product with MnO gave tri-
D 4 4
Card 1/2

s/o6 62/000/008/014/016
Anionotropic rearrangement in ... B101YB160
fluoroacetic acid in quan titative yield, and its hydrolysis with H 2s04
gave trifluoroacetone. Since neither anhydrous HP nor triethylaminefluoro-
hydrate cause a rearrangement of the dialkylamine of (I) into the
corresponding compound of (11), the triethylamine is assumed to have
specific effect:
C 01-IR
CP2-CF-CFHCONIR 2 + R3N 0 CF2-CF-CH,'q CF,CF-CH-COUR 2 + R3N.
r. , 9 NR 3
The 1"ormation of a carben as an intermediate is also possible;
-HF e 17
CP -CF-HCF-Coxl~ + R N 0 CF CFftC-.CONR -1:4 CF CF-MCW
2 3 GF2'CF-U-CONR2 --4 G) 2- 3 a;!
ASSOCIATION: Institut dlementoorganichaskikh soyedineniy kkademii nauk
SSSR (Institute of Elemental Organis Gempeundd of tho
AGademy of Soienoes.USSR)
SUBMITTED: February 19, 1962
Card 2/2

KNUNYANTSP E.L.; ~iATKTJ9, B.L. ; GFMANO L.S.; MUCHALM, 1O.P.
Condensation of formaldehyde with trifluoroethylene, Izv.AU SSSR.Otd.
khim.nauk no.9:161*1677 S I P. (MIRA 15:10)
1. Institut elementoorganicoeskikh soyedineniy AN SSSEL.8
(Formaldehyde) ("eue) (Chlor;uo.compounds) fo

DYATKIN, B.L.;- MOCHALINA, Ye.P,
Fluoroaliphatic diazo compounds. Report No.l: Some new
reactions of trifluorodiazoothane. Izv. AN SSSR Ser. khim.
no.7:1225-1229 JI 164. (MIRA 17:8)
1. Institut alementoorganicheskikh soyedineniy All SSSR.

I-M-OC-HALTNA. Ye.P.1 DYATKIN, B.L.
,
. Synthesis of 2-diazoperflixoropropane (blatrifluorame-thy1di-
azamethans. Izv. AN SSSR. Ser. khim. no.5:926-928 165. (YdRA 180)
1. Institut alementoorganichoskikh soyedinenly All 513311.

DYATKIN, B.L.; MOCIIALIUA, Ye.P.
I-l" ` ~ -- ,
Fluoroaliphatic dlazo compounds. Report No.2; 4-Di&zoF-,rflu;3ro
ketones. Izv. AV SSSR. Ser. khim. no.6:1035-1039 165.
(MIRA 18:6)
lo Institut elementoorganicheskikh aoyedineniy AN SSSR.

KNN

DYATKIN, B.L.;_,tVCjJAjjXA,,_)LtqP.; KNUNYANTS, I.L.
Oxidation of hexafluoroacetone oxime in anhydrou-- hydrogen
fluoride. Izv. Ali SSSR. Ser. khim. no.911715.,.1716 165.
(ICRA 18 5 9)
1. Institut elementoorganicheskikh soye4lneniy AN SS3R.

DYPTKIN, B.L.; MWHALINA. Ye.F.; LANTSEVA, L.T.; 19MIYANTS,
Hexa-fluoroisobutyr-4c aci,l in the Bcrodir-ll-unsdiecker roacticn.
Zhur.VKHC 10 no.4:469-470 165.
(MIRA 18: 11)
1. InotJtut elementoorganichei3kikh soyedineniy AN SSSR.

ye. i .
r na
rp,. rl,,. l6r,

L 31895-66 9#T(n)/EWPQ)/T WNIJWIXNDIRM
ACC NR: AP6012539 SOURCE CODE: UR/0062/66/000/003/0565/0585
AUTHOR: Dyatkin, B. L. Mochalina Ye. P.; Bekker, R. A.; Knunyants, I. L.
ORG: Institute of Elemental Organic Compounds, Academy of Sciences SSSR (Institut
elementarnoorganicheskikh soyedineniy Akademii nauk SSSR)
TITLE: Mechanism of addition of nitrosyl fluoride to fluoroolefins
SOURCE: AN SSSR. Izvestiya. Seriya khimicheskaya, no. 3, 1966, 565
TOPIC TAGS: organic synthesis, fluorine compound
ABSTRACT: The authors obtained experimental proof of the nucleophilic mechanism of
addition of rNO to higher fluoroolefins. It was shown that alkali metal fluorides
(especially in strongly ionizing media) are effective catalysts of this reaction
/ \ _/ FNO \
G--G + F G-C G-C +F-
F F NO
Perfluoroethylene reacts with FNO only at 120-1500C and the reaction of perfluoro-
ethylene (15 g), FNO (5.5 g), CsF (2 g) and KF (4 g) produces 2-nitrosoperfluoropro
Card 1/2 UDC: 541.124 + 546.16

L 31885-66
ACC NR: AP6012539
pane (14.3 g). Perfluorocyclobutene according to our observations does not react
with FNO even-during heating to 1201C; however, shaking of 8 g of perfluorocyclobu-
tene, 4.5--r-of FHO, 1 g CSF and 2 kg KF with 5 ml of tetramethylene sulfone at 350
for 3 hrs produces nitrosoperfluorocyclobutane Yith 70% yield.
SUB CODE: 07/ SUBM DATE: 30Dec65/ ORIG REFI 002/ OTH REF., 001
L 1,
Card 2/2

ACC N.R. AP7010719 SOURCE CODE: UR/0062/66/000/012/2247/2248
AUTHOR: Mochalina, Ye. P.; Dyatkin, B. L.; Knunyants, 1. L.
ORG: Instituto of heteroorganic conpounds, Academy of Sciencut; USSR
(Institut clementoorganicheskikh soyedinly AN SSSR)
TITLE: Fluorine-connininf, phosphn',',o-coripounds
SOURCE: Ali SSSR. Izvestiya. Serlya khtmicheskaya, no. 12, 1966, 2247-2248
TOPIC TAGS: organic nitrogen compound, organic phosphorus compound,
fluorinated organic compound
S U3 CODE: 07
ABSTRACT: It was found that fluorine-containin_Y phosphazo-campoun,s
may be prepared by reaction triphenylphosphine and triethylphosphite with
tertiary perfluoronitrosoalkanes, in 75 and 619% yield, respectively. The
reaction proeucts were chnracterized. The first case of the forma; ion of
phosphazo compounds from porfluo,:onitrosoalkanes and derivatives of
trivalent phosphorus was reported in 1965 at the laboratory of the authors.
Orig. art. has: 2 forniulas. LJ-PRS: 40,351
7
Card l/ I UWt 51,7-971 . AAi 7in

-1,VCI J'Flil. ("t Y:t-x
,I=L. - * , '. A. ; , :, ~ ~: I :. -:-. - ..a.-. j,.. i - -j r-l ~, - I 1::~ ' : t ~ t,;~
- , -r. . y
11 '1 r-:i 1 1,
1, 1, ~ 2%, ~ . .I - i , ~ ~ I - t .. ~ , , '' I ., , ,
Il, . . - I : , _- - " i ~;, i

KUIUIATOV, L.N.; KABANOV, A.N.; SIGRITAWK[-Y, V.V.1 MASHCHINNO, V.Ye.;
MOGHALKlN I
., N.N.; SHAPIJ~, A.I.; SOROKC,,N(T;lT-SY,'Y,
Generation of coherent radiation in spec-imenr, rf galliiaL
arsenide follcwing electronic excitation. Dokl. AN SSSR 165
no,29303-1104 N 169de (YlbA 18~11'1
1. Submitted March 15, 1965.

. . . . . . . . . . . .
~46 EC(* PF
'i641 9iTr(d)MD)Wr(h)A WA (njn2/r/EV1P(k
/Ejtk W ~a (h)_
ACC NWt W31MIAT 0 CE CODE: UR/ 2o/65A65/w/0303/0304
S UR 00
AUTHOR. Kurbatdv, It. ;, Kabanovs k. ff. ;91grLyanskly, V. V. .14ashchenko, V. Te.
44ochalkin, N4 N. Sharin, A. I. Soroko-Movitskly, ff. Vo
91
ORG: none
-TITLE-. Generatidn of coherent radiation in GaAs samples excited by electrons
SOURCE: AN SSSR. Doklady, v. 165, no. 2, 1965, 303-304
TOPIC TAGS, laseri semiconductor laser. Iction beam gallium arsenide,
ABI#MCT- Laser action at 77K and at room temperature is reported in both n- and P-
type GaAs excited with a beam of electrons. The Fabry-Perot cavity was prepared by
cleaving in the (110) plane. The resonator mirror surfaces were separated by a dia-
tance of 50-60 P. An electron beam device supplied electrons with energies up to
The'iepetition rate~and the pulse duration vere 50-200 pulses per second
and 9.x 10-13 sec, respectively. The maximum beam current at a. beam diameter of
60. "TO .U was'IT~mamp. -The electron beam was normal tothe polished surface of the
sahtple. The light was emitted from the faces normal t6 the polished faces. The
threshold current densities.were different for different samples and varied between
and 150 amplontz. Since the effective mass of :the 'electron and the width of the
forbiddexi gap:in GaAs are larger than in InSb and InAs (tvo of the other semiconduc-
tor lasers) and the lifet!pe of the'electrons is vlery short, population inversion in'
Card UDC: 537.3i1-33

L 10241-66,
AP5028275
'GaAs should accur.atatemperature of the electron gas equal to the Debye tempera-,,
ture (0 - 410K) and not the lattice temperature. Therefore, in the range of lattice
mpe -pure whold current should dep ad weakly an the tem-
.;* Oetween TT-1300K ttj~, thr e
peratur.e.--Th(i -weak temperst& X6~ddence of the,threshold current for laser action
in GaAs-vas confirmaL.d.experimentally.. Orig. art., has: .2 rigures. (Cal
SUB COM: .-AG susm DATE: i4jan65/ ORIG. RW: 003/ dM REF: .004/ ATD PMS:
'Tf
cc
Cd

XMITONOVY G.A.; MOCRAUall, L.S.
Basic advice for the establishment of shelterbelt plantations in
Chelyabinsk Province. Trudy Inat. biol. UFAII SSSR no. 25:17-24
161. ; Ir. OIAIRA 15:6)
(Chelyabinsk Province-Windbreaks, shelterbe,111, etc.)

ACCESSION UP.: AT4040780 S/2657/64/000/011/0121/0129
AUT1iOR: MochaIkjna,,-_O.-_,R.
TITLE: Current of an open controllable diode in the switching mode
SOURCE: Poluprovodnikovy*ye pribory* I ikh primeneniyo; abornik etatey, no. 11, 1964,
121-129
TOPIC TAGS: diode, controllable diode, diode current, switch, diode switch, semi-
conductor deVice, rectifier, diode power
ABSTRACT: The author considers the operation of the high-power controllable diode
D238 in the switching mode. The maximum current of this diode in the open state is on
the order of 10 amperes. The condition of thermal stability, an essential factor In
limiting the power given off in a semiconductor device, is defined and explained. The
author determines the maximum permissible power and current which may be liberated
In the diode in the open condition. It is shown on the basis of a typical characteristic
curve of a controllable diode that the current Is an almost linear function of volt-Igo over
a rather large voltage range. 9xactly as In the case of rectifier diodes, temperature
instabUity In a controlloble diode may occur in the event that the power dissipated by the
diode increases as t~e junction temperatures rises. For a coatrollable diode operating
COCOS
e-

ACCESSION NR: AT4040780
in the switching mode, instability involves the possibility of an avalanche-tyTic current
build-up in the reverse direction as the temperature increases. From this fact, there
follows the possibility of an avalanche-like rise in the power given off in the reverse
voltage. The power given off by the diode in the open state may be considered as
independent of the junction temperature. In fact, this power will decrease somewhat
in view of the drop in residual voltage as the temperature of the junction rises. This
power cannot rise in an avalanche form, heats the diode only to a certain temperature
and cannot lead to thermal instability and the failure of the diode, provided this tempera-
ture does not cause melting of the materials present in the device. There exists a
critical power, dissipated in the reverse direction, after the attainment of which the
diode will always be unstable regardless of the magnitude of the power dissipated in the
open state. Critical power is thus determined only by the thermal factor of the device
and by the temperature coefficient. In addition, the author shows that the m:udmurn
permissible mean current of the open state is a function of the cutoff angle. This func-
tion is related to a rise In the residual voltage in the diode as the amplitude of the
--current flowing through It Increases. Formulas are given which determine the ma)dmum
permissible value of the mean current of the open diode for several typical cutoff angle
r;;.aL It-.44L

ACCESSION NR: AT4040780
values. The calculation given in the article permits an approximate estimate of the value
of the open diode for several typical cutoff migle values. Ile calculation given in the
article permits an approximate estimate of the value of the maximum permissible power
of a high-power controllable diode, for specific heat emission, depending on the ambient
temperature. Finally, the author demonstrates the considerable dependence of the max-
imum mean current of the open diode on the cutoff angle, which fixes the duration of
time the diode is in the open state. It Is importalit that this dependence be borne In mind
when operating a controllable diode in various pulse systems. Orig. art. has: G figures
and 7 formulas.
ASSOCIATION: none
SUBMITTED: 00
EUCL: 00
SUB CODE: EC NO REF SOV: 001 OTHER: 003
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ACC MR1. A1760GO-325 SOURCE CODC., UR/0206165/000/021/001210012
INVENTOR: Volkova, L. I.; Zaitova, A.'Ya..- loakimis, A. A,;
~Qva ~T_ P_~
N.
_; Rachkovs
Nazarova , L. Tu.; Mazarov, V. r" Pryakhina, K. S.; Petrov, V.- ly- -E.
E. Savel. v, A. Pe; Syrova, A. A.*. Tikhanovsun.-S, 2- 7~-
JORG: none
iTITLE: A method forfproducing normal butanolig's,
I ynthesis fto-M ethyl alcohol.
Class 12, No. 17592VEannounced by the Bashkir Scientific Research Institute for
Fetroleum Peffn-rn-g TffashkirskLy nauchno-issledovatel'skLy institut po perdrabotke
nefti))
SOURCE: .8yulleten' lzobretenly i tovamykh.zrtakov, no. 21, 1965, 12
TOPIC TAGS: catalysis, butanol, ethyl alcohol
ABSMCT-. This Autherts Certificateintroducearl. A method for producing normal,
1butanal by synthesis, from ethyl alcohol on a,catalyst. -The process is done in a
single'stage b~j using a catalyst consisting of aluminum oxide, magnesium oxide,
jailicon oxide and a saLt or oxide of an alkaU, metal.. 2.' A modification of this
:__547.264.07'

KOCHAL43V, A.
Squipment for making silicate wall blocks. Strol.mat.itdel. i koustr. 1
ao.9:16-19 S'55- (KM 9:1)
1. Glavny,or lashener Krasnopresnanskago koubWta strottollilykh naterialoT.
(Building ~Iocks)

-Mc3tmu'- 11 SHIMunv. S.
~k-g^ I"-I;A -1
Two thousand kilograms of lime from one cubic-motar furnace,
Strol. mat., itdel. i konstr. 2 no.8:21 Ag 056. (MLRA 9:10)
1. Glavtqy inshener KrasnaDresnonskogo ko2binata (for Mochalov).
(TAme kilns)

MOCHALOV, A.; SHUNAM, A.
Chromium magnesite bricks used for lining limekilne. Stroi.mat.
3 no.11:20-21 N 157. (KIRA 10: M4
1.Glavnyy inzhener Krasnopreenenskogo kombinata atroitalinfth
materialov (for Mochalov). 2.11achallnik tsekha Krasnopresnenkogo
kimbinata stroitellnyk materialov (for Shinkarev).
(Magnesite) (Firebrick) (Limekilns)