Patent · US Expired

Purification of alkylglycosides by distillative removal of unconverted alcohols

US4349669A · kind A · utility

42Cited by

5References

4Claims

0Family size

Assignee

BASF SE

Inventors

Erhard Klahr · Ludwigshafen, DE
Wolfgang Trieselt · Ludwigshafen, DE
Horst Trapp · Plankstadt, DE
Rudi Widder · Leimen, DE

Key dates

Filing date	Jan 5, 1981
Grant date	Sep 14, 1982
Priority date	—
Expiry date	Jan 5, 2001

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07H15/04
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

A process for purifying C.sub.8 -C.sub.16 -alkylglycosides which have been obtained by reacting lower alkylglycosides or hydroxyalkylglycosides with C.sub.8 -C.sub.16 -alcohols in the presence of an acid catalyst, by distillative removal of unconverted C.sub.8 -C.sub.16 -alcohols, wherein the distillative removal, at least of the last amounts of unconverted alcohols, is carried out in the presence of glycols whose boiling points are at most 10.degree. above, and at most 30.degree. below, those of the alcohols to be removed.

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