Process for separating and recovering metal catalysts

US4414401A · kind A · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Willi Wintermeyer · Seeheim-Jugenheim, DE
• Rolf Wittmann
• Jurgen Butzke · Dieburg, DE

Key dates

• Filing date: Oct 29, 1981
• Grant date: Nov 8, 1983
• Expiry date: Oct 29, 2001

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D2321/2083
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A process is provided for separating and recovering solid, metal catalysts from reaction mixtures in which they are dispersed, with cross-flow filtration using membrane separation devices. The process is particularly useful for separating gelatinous catalyst sludges, e.g., nickel hydroxide, used in oxidizing diacetone sorbose.