Patent · US Expired

Process for the separation of reaction mixtures and the recirculation of quaternary salts

US6734325B2 · kind B2 · utility

1Cited by

4References

10Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Claus-Peter Reisinger · Wixom, US
Sven Michael Hansen · Leverkusen, DE
Peter Fischer
Michael Traving · Burscheid, DE

Key dates

Filing date	Dec 16, 2002
Grant date	May 11, 2004
Priority date	—
Expiry date	Dec 16, 2022

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P20/584
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A process for the separation and recycling of catalyst components from a chemical reaction mixture is disclosed. The process entails at least one extraction step.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.