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Nature of active centers of catalytic system of VOCl/sub 3/ - Al(C/sub 2/H/sub 5/)/sub 2/Cl

Abstract

To investigate the nature of the active sites of the catalyst VOCl/sub 3/-Al(C/sub 2/H/sub 5/)/sub 2/Cl during olefine polymerization, the following factors have been studied: composition and catalytic activity of homogeneous and heterogeneous components of the system, valent state of vanadium entering into the composition of the catalytic sites, effect of an organoaluminium component on the catalytic activity of the system, and the properties of the polymeric products being formed. It has been shown that the catalytic sites of the system VOCl/sub 3/-Al(C/sub 4/H/sub 5/)/sub 2/Cl are located, predominantly, in the heterogeneus phase of the catalyst. A conclusion has been made that heterogeneous catalytic sites are bimetal complexes of alkyl derivatives of vanadium trichloride and aluminuim alkylchlorides and that polycentral mechanism of catalysis of olefine polymerization in the presence of VOCl/sub 3/-Al(C/sub 2/H/sub 5/)/sub 2/Cl is caused by two types of active vanadium-aluminium complexes differing in the nature of an organoaluminium component.
Authors:
Dubnikova, I L; Meshkova, I N [1] 
  1. AN SSSR, Moscow. Inst. Khimicheskoj Fiziki
Publication Date:
May 01, 1977
Product Type:
Journal Article
Reference Number:
AIX-08-342701; EDB-78-038679
Resource Relation:
Journal Name: Vysokomol. Soedin., Ser. A; (USSR); Journal Volume: 19:5
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ALKENES; POLYMERIZATION; ALUMINIUM COMPOUNDS; CHEMICAL REACTION KINETICS; OXYCHLORIDES; VANADIUM COMPLEXES; ALKANES; CATALYSTS; ORGANOMETALLIC COMPOUNDS; CHEMICAL REACTIONS; CHLORINE COMPOUNDS; COMPLEXES; HALOGEN COMPOUNDS; HYDROCARBONS; KINETICS; ORGANIC COMPOUNDS; OXYGEN COMPOUNDS; REACTION KINETICS; TRANSITION ELEMENT COMPLEXES; 400201* - Chemical & Physicochemical Properties
OSTI ID:
5346228
Country of Origin:
USSR
Language:
Russian
Other Identifying Numbers:
Journal ID: CODEN: VYSAA
Submitting Site:
INIS
Size:
Pages: 1101-1108
Announcement Date:
Dec 01, 1977

Citation Formats

Dubnikova, I L, and Meshkova, I N. Nature of active centers of catalytic system of VOCl/sub 3/ - Al(C/sub 2/H/sub 5/)/sub 2/Cl. USSR: N. p., 1977. Web.
Dubnikova, I L, & Meshkova, I N. Nature of active centers of catalytic system of VOCl/sub 3/ - Al(C/sub 2/H/sub 5/)/sub 2/Cl. USSR.
Dubnikova, I L, and Meshkova, I N. 1977. "Nature of active centers of catalytic system of VOCl/sub 3/ - Al(C/sub 2/H/sub 5/)/sub 2/Cl." USSR.
@misc{etde_5346228,
title = {Nature of active centers of catalytic system of VOCl/sub 3/ - Al(C/sub 2/H/sub 5/)/sub 2/Cl}
author = {Dubnikova, I L, and Meshkova, I N}
abstractNote = {To investigate the nature of the active sites of the catalyst VOCl/sub 3/-Al(C/sub 2/H/sub 5/)/sub 2/Cl during olefine polymerization, the following factors have been studied: composition and catalytic activity of homogeneous and heterogeneous components of the system, valent state of vanadium entering into the composition of the catalytic sites, effect of an organoaluminium component on the catalytic activity of the system, and the properties of the polymeric products being formed. It has been shown that the catalytic sites of the system VOCl/sub 3/-Al(C/sub 4/H/sub 5/)/sub 2/Cl are located, predominantly, in the heterogeneus phase of the catalyst. A conclusion has been made that heterogeneous catalytic sites are bimetal complexes of alkyl derivatives of vanadium trichloride and aluminuim alkylchlorides and that polycentral mechanism of catalysis of olefine polymerization in the presence of VOCl/sub 3/-Al(C/sub 2/H/sub 5/)/sub 2/Cl is caused by two types of active vanadium-aluminium complexes differing in the nature of an organoaluminium component.}
journal = []
volume = {19:5}
journal type = {AC}
place = {USSR}
year = {1977}
month = {May}
}