Oligomerization and isomerization of olefins by catalysts derived from nickel complexes of dithio-β-diketonates
摘要:
The complexes [Ni{R1C(S)CR2C(S)R3}2] 1 and [Ni(R1C(S)CR2C(S)R3}(PL1L2L3)X] 2 (R, L = alkyl, aryl or CF3; X = Cl, Br or 1) have been prepared. The complexes 2 can be chemically anchored to polystyrene or silica-alumina supports via pendant phosphine ligands to form the derivatives 3. The species 2 and 3 in combination with a suitable co-catalyst form extremely active catalysts for the oligomerization of ethylene, propylene or butenes. The immobilised systems show no significant signs of leaching after 24 h operation. In general the oligomerization is highly selective to dimers, however, selectivity and catalyst activity are markedly affected by changes in L. Changes in R affect catalyst activity only.
Kerr, James M.; Suckling, Colin J.; Bamfield, Peter, Journal of the Chemical Society. Perkin transactions I, 1990, # 4, p. 887 - 895
作者:Kerr, James M.、Suckling, Colin J.、Bamfield, Peter
DOI:——
日期:——
A PERCHLORATE SOLUTION IMPROVED IN SAFETY, AND A METHOD FOR HEAT-STABILIZING CHLORINE-CONTAINING RESIN COMPOSITIONS
申请人:Akishima Chemical Industries Co., Ltd.
公开号:EP2429940A1
公开(公告)日:2012-03-21
PERCHLORATE SOLUTION IMPROVED IN SAFETY, AND A METHOD FOR HEAT-STABILIZING CHLORINE-CONTAINING RESIN COMPOSITIONS
申请人:Yoshino Kenji
公开号:US20120123038A1
公开(公告)日:2012-05-17
To improve the handlability and safety of a perchlorate solution used as a stabilizer for chlorine-containing resins.
This invention provides a perchlorate solution of improved handlability and safety and a method for heat-stabilizing chlorine-containing resin compositions by adding (a) 0.004 to 10 parts by weight of a perchlorate solution containing 1 to 60% by weight of perchlorate, 5 to 50% by weight of water-soluble organic solvent and 20 to 94% by weight of water, and (b) 0.001 to 10 parts by weight of at least one silicate compound represented by the general formula (I) to 100 parts by weight of a chlorine-containing resin:
M(O)a nSiO
2
mH
2
O (I)
in which M is at least one metal selected from alkaline earth metals and aluminum, a is 1 when M is an alkaline earth metal and 3/2 where M is aluminum, n is from 1 to 5, and m is any positive integer.
US4252698A
申请人:——
公开号:US4252698A
公开(公告)日:1981-02-24
[EN] A PERCHLORATE SOLUTION IMPROVED IN SAFETY, AND A METHOD FOR HEAT-STABILIZING CHLORINE-CONTAINING RESIN COMPOSITIONS<br/>[FR] SOLUTION DE PERCHLORATE AMÉLIORÉE EN TERMES DE SÉCURITÉ ET PROCÉDÉ POUR LA STABILISATION VIS-À-VIS DE LA CHALEUR DE COMPOSITIONS DE RÉSINE CONTENANT DU CHLORE
申请人:AKISHIMA KAGAKU KOGYO
公开号:WO2010131782A1
公开(公告)日:2010-11-18
To improve the handlability and safety of a perchlorate solution used as a stabilizer for chlorine-containing resins. This invention provides a perchlorate solution of improved handlablity and safety and a method for heat-stabilizing chlorine-containing resin compositions by adding (a) 0.004 to 10 parts by weight of a perchlorate solution containing 1 to 60 % by weight of perchlorate, 5 to 50 % by weight of water-soluble organic solvent and 20 to 94 % by weight of water, and (b) 0.001 to 10 parts by weight of at least one silicate compound represented by the general formula (I) to 100 parts by weight of a chlorine-containing resin: M(O)a nSiO2mH2O (I) in which M is at least one metal selected from alkaline earth metals and aluminum, a is 1 when M is an alkaline earth metal and 3/2 where M is aluminum, n is from 1 to 5, and m is any positive integer.