SCIENTIFIC ABSTRACT SHUYKIN, N.I. - SHUYKIN, N.I.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R001550320002-3
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: August 31, 2001
• Sequence Number: 2
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

A;1111
'o t-catalrtle transformation@ of alk-as of normal
1
1~147nea mr" aauTdWWS"e hydro-
111~ =Ikina ~~.Mpe
u e I M. J IV "93
S
cf. bid. 1953. 771.-Catalytic transformations of a-
hexane. n-heptane. and n-octane were studied over Pt-c1aX
at 460' under 15-20 atm. H. In all Cases the IMCIMI @I
hydrocycliza (ion was observed along with isornerization of
tile alkanes, and mcthylation and hydrogenolysis of the
ilk-anes as well as of the homolop of CaRe which form as a.
e,surt of dchydrocyclizations. Thus n-hexane yields 10%
e'lls. but is mainly burnerized into 2- and il-methylpen-
tanes;n?,3-dimethylbutane, and 2.2-dimcthylbutane along
Chemical Abst- with inor units. of n-pentane and 2-methylbutant arising
Vol- 48 No- through hydrogenolysis. Some .30% suffers cracking
Apr. 25, 1954 and small amts. of MePh and xylenes are formed. n-
Ileptane gave sorne MePh. xylenes, and highe hornologs,
Organic CheudatI7 along with formation of C114. and much 2- an;d 3-methyl-
hexanes, 2,3- and 2,4-dimethylpentanes, and 2,2- and 2,3-
diniethylpentanes. n-Octane gave mixed aromatic hydro-
carbons, as above, along with 2-methylpentane, n-hexane,
2,2-dimethylpentane, n-heptane,_.god 2,3- and 2,4-di-
methylhexane, as well as ;!-mSjUsyThcptane and 4-methyl-
heptane. It is suggested tharthe reaction of. the alkanes
pr(veeds by the attack of CHj radicals at the 2nd C atom
of tile alkane chain. yielding a 2-Me deriv., which under
attack of If yields CH, and a shorter 2-methjlalkane. The
latter Li attacked by a CH2 radical and the cycl-- is repeated
G. M, Kosolapoff Sy
101-1

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1. PETPOV, A.D., LH -fEIN N.I.
L_
2. USS'i WO)
4. Xrentsel, B.A.
7. "Chemical use of netroleum hydrocarbon A. S. Nekrasov, B. A. Krentsell, Re-
viewed by A. D. Petrov, N. I. Shuykin. Sov kniga No. 1 1953.
9. Monthl List of Russian Accessions, Library of Congress, April -1-953, Uncl.

1. Pcrovp 1". 7., FAFA"M'I~AY.--~' C. 1
2. -j3,-R (6COJ
4. Ketones
7. Catalytic amination of ketones of different sttuctures. Izv. AN SSSR. Otd.
khir-n. nauk Do. 1, 1953
g. Monthly List of Russian Accessions, Library of Congress, June 1953, Uncl-

vA~ and tlNlrogenatinic abihlv of nickel ruitalysts on
f
IN.
"Feofanova (ba-rst. AM77.-MtM Sl?,~ - ~ri it'll. ~"(Iflh. 1953, No. 1,
U13-7-99)_-Cataly-sts containing 15-20% Ni on A1,0,,, ZuO Cr 0
AIRO, one] I;e,fj, are prepared by pill. of the rnixv,l nitraic., 4ith
30% NaOl 1, washing free of NO. , 11 ying at 120-130', grinding anti
IMIleting into rods 3-1 inin. diameter anti 5-6, nim. length. The
cattilysbi art; reduced by electrolytic 11, at 150-360'; vol. of
catalyst was 50 mL, %pace velocity of cyr1ohexano (1) vaponr 0.3 1.
per 1. of catalyst per hr., that of C.H. vapour 0-00 1. per 1. of catalyst
per hr. Activity and stability of catalyst are estimated from the
degree of conversion of C,114 to I (hydrogenation) and of I to C4H,
(dehydrogenation): Ni-Al,Oj and NI-ZnO are most active, Ni-Cr.03
-and M-MgO Ims active,and Ni-Fe,O. practically useless fordehydro-
genation; all samples (Fe,O, excepted) hydrogenate C.H. after only
one passage at 160-170*. The stability of the catalysts to pro-
longed use is obtained by admitting first I and then C.H4 after
initial activity had been determined. Ni-AI,03 had unchanged
activity after 80 hr. use ; for Ni-ZnO and Ni-Cr2Q3 the activity fell
gradually to 18-20% of initial value. This stability is probably due
to comparatively small conen. of finely dispersed Ni on the highly
developed surface of the carrier. The active Ni distributed itself
in such a way that its power of decomposing hydrocarbons is
reduced. Special experiments show that CHg is not evolved from I
at