Supported double metal cyanide catalysts, method for producing them, and their use for producing polyether alcohols

US6362126B1 · kind B1 · utility

Assignee

• BASF SE

Inventors

• Georg Heinrich Grosch · Bad Dürkheim, DE
• Harald Larbig · Ludwigshafen, DE
• Reinhard Lorenz · Schifferstadt, DE
• Dieter Junge · Bischofswerda, DE
• Ulrich Kammel · Speyer, DE

Key dates

• Filing date: Sep 9, 2000
• Grant date: Mar 26, 2002
• Expiry date: Sep 9, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G65/2663
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Double-metal cyanide catalysts of the formulaM1a[M2(CN)b(A)c]d. fM1gXn. h (H2O). eL, whereM1 is a metal ion selected from the group consisting of Zn2+, Fe2+, Co3+, Ni2+, Mn2+, Co2+, Sn2+, Pb2+, Mo4+, Mo6+, Al3+, V4+, V5+, Sr2+, W4+, W6+, Cr2+, Cr3+ and Cd2+,M2 is a metal ion selected from the group consisting of Fe2+, Fe3+, Co2+, Co3+, Mn2+, Mn3+, V4+, V5+, Cr2+, Cr3+, Rh3+, Ru2+ and Ir3+and M1 and M2 are identical or different,A is an anion selected from the group consisting of halide, hydroxide, sulfate, carbonate, cyanide, thiocyanate, isocyanate, cyanate, carboxylate, oxalate and nitrate,X is an anion selected from the group consisting of halide, hydroxide, sulfate, carbonate, cyanide, thiocyanate, isocyanate, cyanate, carboxylate, oxalate and nitrate,L is a water-miscible ligand selected from the group consisting of alcohols, aldehydes, ketones, ethers, polyethers, esters, ureas, amides, nitriles and sulfides,a, b, c, d, g and n are selected so as to make the compound electrically neutral, ande denotes the coordination number of the ligand,e and f denote fractions or integers greater than or equal to zero,h denotes a fraction or integer greater than or equal to zero,wherein th…