COMPLEXES USEFUL AS ACTIVE COMPONENTS IN SUPPORTED EPOXIDATION CATALYSTS
申请人:Lyondell Chemical Technology, L.P.
公开号:US20160016157A1
公开(公告)日:2016-01-21
Method of preparing epoxidation catalysts are disclosed, including methods comprising reacting an inorganic siliceous solid with a metal complex of the formulas:
wherein the variables are defined herein.
Process for preparing malonate derivatives or beta -keto esters from epoxide derivatives
申请人:Samsung Electronics Co., Ltd.
公开号:US20020035290A1
公开(公告)日:2002-03-21
A process for preparing a malonic acid monoester or &bgr;-ketoester from an epoxide includes the steps of reacting an epoxide with carbon monoxide and an alcohol in the presence of a catalytic amount of a cobalt compound and at least one promoter to produce a &bgr;-hydroxyester, separating the &bgr;-hydroxyester from the cobalt compound and the promoter, and oxidizing the &bgr;-hydroxyester to produce a malonic acid monoester or &bgr;-ketoester.
[EN] PROCESS FOR FORMING PROPYLENE OXIDE FROM OXIDATION OF METHYL BENZYL ALCOHOL<br/>[FR] PROCÉDÉ DE FORMATION D'OXYDE DE PROPYLÈNE À PARTIR DE L'OXYDATION D'ALCOOL MÉTHYL BENZYLIQUE
申请人:LYONDELL CHEMICAL TECH LP
公开号:WO2016164595A1
公开(公告)日:2016-10-13
The present disclosure relates to a method of preparing propylene oxide comprising the steps: (a) oxidizing alpha-methylbenzyl alcohol with air to form a first reaction mixture comprising hydrogen peroxide and acetophenone; (b) reacting propylene with the first reaction mixture in the presence of a catalyst to form a second reaction mixture comprising propylene oxide; (c) separating the propylene oxide from the second reaction mixture to form a third reaction mixture; (d) heating the third reaction mixture to decompose hydrogen peroxide, whereby a fourth reaction mixture is formed; (e) hydrogenating the acetophenone in the fourth reaction mixture with hydrogen to form a fifth reaction mixture comprising alpha-methylbenzyl alcohol; and (f) separating alpha-methylbenzyl alcohol from the fifth reaction mixture and returning the methyl benzyl alcohol to step (a).
The present invention relates to a process for the preparation of polyether carbonate polyols in the presence of a double metal cyanide catalysts that can be obtained by a process comprising (a) synthesizing a solid double metal cyanide catalyst in the presence of an organic complexing agent and a polyether polyol ligand; and (b) first washing the catalyst obtained in step a) with an aqueous solution comprising 90-100% by weight of water and 0-10% by weight of a polyether polyol ligand, to form a slurry, wherein the aqueous solution does not contain any organic complexing agent other than the polyether polyol ligand.
Provided is a liquid composition that places a low burden on the environment and has such properties as to thicken or gelate upon the application of strain. The liquid composition according to the present invention contains components (A), (B), (C), and (D). The component (A) is an N-methyl-N-(2,3-dihydroxypropyl) fatty amide represented by Formula (1). The component (B) is an N-methyl-N-(2-hydroxypropyl) fatty amide ester represented by Formula (2). The component (C) is an oily substance. The component (D) is water. Formulae (1) and (2) are expressed as follows: