Patent · US Expired

Method for separating alkyl glycosides

US5837831A · kind A · utility

21Cited by

2References

32Claims

0Family size

Assignee

Th. Goldschmidt. AG · DE

Inventors

Burghard Gruning · Essen, DE
Siegfried Peter · Erlangen, DE
Eckhard Weidner · Erlangen, DE
Zhengfeng Zhang · Quzhou, CN

Key dates

Filing date	Sep 23, 1996
Grant date	Nov 17, 1998
Priority date	—
Expiry date	Sep 23, 2016

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P20/54
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The invention relates to a method for separating alkyl glycoside mixtures or alcohol-containing alkyl glycoside mixtures by extraction, which is characterized in that the extraction is carried out with an extraction agent, which is close to or below the critical point at a reduced temperature ranging from 0.9 to 1.2, and at pressures, which are selected so that the density of the extraction agent is at least 180 kg/m.sup.3.

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