- Email: [email protected]
Intensive oxidation of hexadecane in the presence of boric anhydride
Abstracts
89
REGULARITIES IN THE VARIATION OF PYROLYTIC PRODUCT YIELDS FROM A HOMOLOGOUS SERIES OF n-PARAFFINS AND ~-OLEFINS G . Bakh, V. Tsikhlinski, G. T s i m m e r m a n n , R. A. K a l i n e n k o a n d Ye. N. Buravtseva, N e f t e k h i m i y a 23, No. 2, 200-206, 1983. THE clifference in compositions of the pyrolytic products of paraffins and olefins with the same number of carbon atoms is maintained to a considerable length of the molecular chain (n = 10-12). With. the same conversion pyrolytic products of olefin hydrocarbons contain less methane, h.~drogen and ethylene, while pyrolytic products of C6 and higher olefins contain more dienes, propylene and ;t-butylene than those of paraffinic hydrocarbons. Ctn_a)H2tn_a) formation in the pyrolysis of C, H2, olefins is mediated by a radical-chain and not by a molecular mechanism. LIQUID PHASE CATALYTIC HYDROGENATION OF ALLYLPHENYL ESTER L. Chcrvcny, Ya. M o i z h i s h o v a arid V. R u z h i c h k a , N e f l c k h i m i y a 23, N o . 2, 207-210, 1983. TIlE rate of hydrogenation of allylphenyl ester on Pd- and Pt-catalysts is inversely proportional to its initial concentration in the reaction mixture and depends on the type of solvent used. Causes of the effects described are dealt with assuming that the reaction is subject to adsorption inhibition on the initial subgtrate and to the effect of solvents on adsorption equilibrium in the system. tIETEROGENEOUS THERMAL DECOMPOSITION OF DI- AND TRICHLOROMETHANE Ye. V. D e n i s e v i c h a n d P. A. Tesner, N e f t e k h i m i y a 23, No. 2~ 211-213, 1983. RATe constants for the formation of pyrocarbon from di- and trichloromethane were determined under conditions of minimum gaseous phase transformation. The rate of formation of pyrocarbon is shown to conform to first order kinetics whilst the rate constants for di- and trichloromethane at a temperature of 500~ are 16 and 80 times higher, respectively than for carbon tetrachloridc. INTENSIVE OXIDATION OF HEXADECM~IE IN THE PRESENCE OF BORIC ANHYDRIDE F. I. N o v a k , Yu. A. Talyzenkov, L. A. P a r e n a g o , Ye. V. K a m z o l k i n a a n d A. N. Bashkirov, N e f t e k h i m i y a 23, No. 2, 214-218, 1983. LtQuxD-phase oxidation of hexadecane was studied in the presence of boric anhydride with a hydrocarbon conversion of 20-45 ~o. Boric anhydride was shown to have an effect on the kinetics of oxidation as well as upon tile composition of reaction products (formation of borates of mono- and bifunctional hydroxy compounds) at all stages of the process. KETONE TRANSFORMATIONS ON A WOa-SiO2 CATALYST A. N. Shuikin, G. A. Kliger, L. S. G l e b o v a n d A. N. Bashk]rov (dec.), N e f t e k h i m i y a 23, N o . 2, 219-223, 1983. A ',VIDErange of kinetic parameters affecting the transformation of acetone on a WO3-SiO2 catalyst was studied.
89
REGULARITIES IN THE VARIATION OF PYROLYTIC PRODUCT YIELDS FROM A HOMOLOGOUS SERIES OF n-PARAFFINS AND ~-OLEFINS G . Bakh, V. Tsikhlinski, G. T s i m m e r m a n n , R. A. K a l i n e n k o a n d Ye. N. Buravtseva, N e f t e k h i m i y a 23, No. 2, 200-206, 1983. THE clifference in compositions of the pyrolytic products of paraffins and olefins with the same number of carbon atoms is maintained to a considerable length of the molecular chain (n = 10-12). With. the same conversion pyrolytic products of olefin hydrocarbons contain less methane, h.~drogen and ethylene, while pyrolytic products of C6 and higher olefins contain more dienes, propylene and ;t-butylene than those of paraffinic hydrocarbons. Ctn_a)H2tn_a) formation in the pyrolysis of C, H2, olefins is mediated by a radical-chain and not by a molecular mechanism. LIQUID PHASE CATALYTIC HYDROGENATION OF ALLYLPHENYL ESTER L. Chcrvcny, Ya. M o i z h i s h o v a arid V. R u z h i c h k a , N e f l c k h i m i y a 23, N o . 2, 207-210, 1983. TIlE rate of hydrogenation of allylphenyl ester on Pd- and Pt-catalysts is inversely proportional to its initial concentration in the reaction mixture and depends on the type of solvent used. Causes of the effects described are dealt with assuming that the reaction is subject to adsorption inhibition on the initial subgtrate and to the effect of solvents on adsorption equilibrium in the system. tIETEROGENEOUS THERMAL DECOMPOSITION OF DI- AND TRICHLOROMETHANE Ye. V. D e n i s e v i c h a n d P. A. Tesner, N e f t e k h i m i y a 23, No. 2~ 211-213, 1983. RATe constants for the formation of pyrocarbon from di- and trichloromethane were determined under conditions of minimum gaseous phase transformation. The rate of formation of pyrocarbon is shown to conform to first order kinetics whilst the rate constants for di- and trichloromethane at a temperature of 500~ are 16 and 80 times higher, respectively than for carbon tetrachloridc. INTENSIVE OXIDATION OF HEXADECM~IE IN THE PRESENCE OF BORIC ANHYDRIDE F. I. N o v a k , Yu. A. Talyzenkov, L. A. P a r e n a g o , Ye. V. K a m z o l k i n a a n d A. N. Bashkirov, N e f t e k h i m i y a 23, No. 2, 214-218, 1983. LtQuxD-phase oxidation of hexadecane was studied in the presence of boric anhydride with a hydrocarbon conversion of 20-45 ~o. Boric anhydride was shown to have an effect on the kinetics of oxidation as well as upon tile composition of reaction products (formation of borates of mono- and bifunctional hydroxy compounds) at all stages of the process. KETONE TRANSFORMATIONS ON A WOa-SiO2 CATALYST A. N. Shuikin, G. A. Kliger, L. S. G l e b o v a n d A. N. Bashk]rov (dec.), N e f t e k h i m i y a 23, N o . 2, 219-223, 1983. A ',VIDErange of kinetic parameters affecting the transformation of acetone on a WO3-SiO2 catalyst was studied.