Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Inorganic carbon containing
Patent
1998-03-20
1999-09-14
Jones, Deborah
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Inorganic carbon containing
502172, 502175, 502183, 502307, 502326, 502340, 502200, B01J 2726
Patent
active
059522615
ABSTRACT:
Highly active double metal cyanide complex catalysts useful for epoxide polymerization are prepared by reacting zinc chloride or other metal salt with potassium hexacyanocobaltate or other metal cyanide salt in the presence of a Group IIA compound such as calcium chloride.
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Schuchardt et al., "Preparation of High Molecular Weight Polyols Using Double Metal Cyanide Catalysts," 32nd Annual Polyurethane Technical Marketing Conference, Oct. 1-4, 1989, pp. 360-364.
Herold et al., "Hexacyanomeltalate Salt Complexes as Catalysts for Epoxide Polymerizations," Advances in Chemistry Series, No. 128, Polymerization Kinetics and Technology, 1973, pp. 208-229.
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Arco Chemical Technology L.P.
Harper Stephen D.
Jones Deborah
Shaw Holly C.
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