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Nikolai markovich emanuel'
Abstracts
69
CATALYTIC BREAKDOWN O F tert-BUTYL H Y D R O P E R O X I D E IN T H E PRESENCE OF ORGANIC ACIDS AND VANADYL ACETYLACETONATE N. N. Batyrshin, Kh. E. K h a r l a m p i d i , A. A. Oaifullin and N. M. Lebedeva, Nefte k h i m i y a 25, No. 2, 244-248, 1985. THE accelerating effect of acetic, butyric, caproic and capric acids on the breakdown of tert-butyl hydroperoxide was studied in the presence of VO(acac)2. The increase in the rate of radical formation is due to the formation of a complex VO(acac)2•ROOH.2R'COOH that breaks down readily, and to the accelerated regeneration of the active form of the catalyst. The accelerating effect decreases as the length of the hydrocarbon chain of the acids i~acreases. 4-HYDROXYMETHYL-I,3-DIOXOLANE, A SOLVENT FOR THE EXTRACTION OF AROMATIC HYDROCARBONS FROM PETROLEUM DISTILLATES A. E. Shcherbina, Ye. I. Shcherbina, R. M. D o l i n s k a y a , T. V. B a s h u n a n d L. M. V i n o g r a d o v a , Neftekhimiya 25, No. 2, 249-254, 1985. A STUDYof the physical, chemical and extractive properties of a new extracting agent (4-hydroxymethyl-l,3-dioxolane) for aromatic hydrocarbons in the temperature range of 20°-70°C, showed that it surpasses the industrial extracting agent - diethylene glycol and may be used for extractive separation, both in the pure form and as additive to other solvents, with increased dissolving power, but lower selectivity. GAS CHROMATOGRAPHIC DETERMINATION OF Cll--Cl2 ALKYLNAPHTHALENE ISOMERS E. A d a m t s o v a , V. G. Berezkin, L. Vodichka, M. V. K u r a s h e v , T. P. P o p o v a a n d V. Ye. Shiryayeva, N e f t e k h i m i y a 25, No. 2, 264--270, 1985. A MIXTUREof dimethyl- and methylethyl-naphthalenes(C~ ~-C~2) was separated using a capillary column coated with XE-60 (efficiency > 150,000 theoretical plates). Retention indices of all C11-C~ 2 alkylnaphthalenes were measured. A diagrammatic method for differentiating the selectivity of various stationary liquid phases was evaluated using the alkylnaphthalene retention data obtained with this column. Xth WORLD PETROLEUM CONGRESS
MODERN STATE OF THE PROBLEM OF COAL PROCESSING L. S. P o l a k , R. A. K a l i n e n k o , N e f t e k h i m i y a 25, No. 2, 271-279, 1985. NIKOLAI S E R G E Y E V I C H N A M E T K I N
N e f t e k h i m i y a 25, No. 2, 280-282, 1985. NIKOLAI MARKOVICH EMANUEL' N e f t e k h i m i y a 25, No. 2, 283-285, 1985.
69
CATALYTIC BREAKDOWN O F tert-BUTYL H Y D R O P E R O X I D E IN T H E PRESENCE OF ORGANIC ACIDS AND VANADYL ACETYLACETONATE N. N. Batyrshin, Kh. E. K h a r l a m p i d i , A. A. Oaifullin and N. M. Lebedeva, Nefte k h i m i y a 25, No. 2, 244-248, 1985. THE accelerating effect of acetic, butyric, caproic and capric acids on the breakdown of tert-butyl hydroperoxide was studied in the presence of VO(acac)2. The increase in the rate of radical formation is due to the formation of a complex VO(acac)2•ROOH.2R'COOH that breaks down readily, and to the accelerated regeneration of the active form of the catalyst. The accelerating effect decreases as the length of the hydrocarbon chain of the acids i~acreases. 4-HYDROXYMETHYL-I,3-DIOXOLANE, A SOLVENT FOR THE EXTRACTION OF AROMATIC HYDROCARBONS FROM PETROLEUM DISTILLATES A. E. Shcherbina, Ye. I. Shcherbina, R. M. D o l i n s k a y a , T. V. B a s h u n a n d L. M. V i n o g r a d o v a , Neftekhimiya 25, No. 2, 249-254, 1985. A STUDYof the physical, chemical and extractive properties of a new extracting agent (4-hydroxymethyl-l,3-dioxolane) for aromatic hydrocarbons in the temperature range of 20°-70°C, showed that it surpasses the industrial extracting agent - diethylene glycol and may be used for extractive separation, both in the pure form and as additive to other solvents, with increased dissolving power, but lower selectivity. GAS CHROMATOGRAPHIC DETERMINATION OF Cll--Cl2 ALKYLNAPHTHALENE ISOMERS E. A d a m t s o v a , V. G. Berezkin, L. Vodichka, M. V. K u r a s h e v , T. P. P o p o v a a n d V. Ye. Shiryayeva, N e f t e k h i m i y a 25, No. 2, 264--270, 1985. A MIXTUREof dimethyl- and methylethyl-naphthalenes(C~ ~-C~2) was separated using a capillary column coated with XE-60 (efficiency > 150,000 theoretical plates). Retention indices of all C11-C~ 2 alkylnaphthalenes were measured. A diagrammatic method for differentiating the selectivity of various stationary liquid phases was evaluated using the alkylnaphthalene retention data obtained with this column. Xth WORLD PETROLEUM CONGRESS
MODERN STATE OF THE PROBLEM OF COAL PROCESSING L. S. P o l a k , R. A. K a l i n e n k o , N e f t e k h i m i y a 25, No. 2, 271-279, 1985. NIKOLAI S E R G E Y E V I C H N A M E T K I N
N e f t e k h i m i y a 25, No. 2, 280-282, 1985. NIKOLAI MARKOVICH EMANUEL' N e f t e k h i m i y a 25, No. 2, 283-285, 1985.