Abstract: Spectrokinetic measurements have shown that in the reaction media benzene – decene-1 and toluene – decene-1 at a temperature of 80 ºC and helium pressures of 0.2-0.3 MPa, Al-Cu alloys activated with a liquid Ga-In eutectic at a temperature of 150 ºC for 2 h in vacuum, 1.2 times more reactive with respect to a 4-fold molar excess of CCl4 than Al-Cu alloys activated with liquid Ga-In eutectic at a temperature of 24 ºC for 36 h in air. Activated Al-Cu alloys are 1.4 times more reactive with respect to CCl4 in a toluene – decene-1 reaction medium than in a benzene – decene-1 reaction medium. A comparison of the catalytic studies with the structure of the metal chloride complexes formed in situ has been carried out. Using infrared spectroscopy and UV-visible spectrophotometry, it was found that benzene – decene-1 in the reaction medium at a temperature of 80 ºC and helium pressures of 0.2-0.3 MPa from Al-Cu alloys activated by liquid Ga-In eutectic at a temperature of 24 ºC for 36 h in air, and a 4-fold molar excess of CCl4, ionic complexes (C6H5)3C+ – [AlCl4]– are formed, which are predominantly active in the catalytic reaction of benzene alkylation with decene-1. Under identical conditions, molecular complexes of AlCl3 with organochlorine hydrocarbons, which are predominantly catalytically active in the decene-1 telomerization reaction, are formed from Al-Cu alloys activated with liquid Ga-In eutectic at a temperature of 150 ºC for 2 h in vacuum, and a 4-fold molar excess of CCl4. The activity of ionic complexes is 2.1 times higher than that of molecular ones. In the reaction medium toluene – decene-1, regardless of the conditions of activation of Al-Cu alloys by liquid Ga-In eutectic, molecular complexes of Al2Cl6 with organochlorine hydrocarbons are formed in situ, which are catalytically active both in the telomerization reaction of decene-1 and in the alkylation of toluene with decene-1. The activity of the complexes obtained from Al-Cu alloys activated by liquid Ga-In eutectic at a temperature of 150 ºC for 2 h in vacuum is 23.8 times higher.

Cite: Arbuzov A.B. , Drozdov V.A. , Talsi V.P.
Catalytic properties of metal chloride complexes obtained in situ from activated Al-Cu alloys in reactive alkylating media
AIP Conference Proceedings. 2020. V.2301. N1. 040001 :1-6. DOI: 10.1063/5.0032876 Scopus РИНЦ OpenAlex

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Published online:

Dec 8, 2020

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Scopus:	2-s2.0-85098086263
Elibrary:	45063504
OpenAlex:	W3111627815

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