Patent · US Expired

Manufacture of cyclic ethers

US4196130A · kind A · utility

5Cited by

1References

3Claims

0Family size

Assignee

BASF SE

Inventors

Otto H. Huchler · Schifferstadt, DE
Siegfried Winderl
Herbert Mueller · Herznach, CH
Herwig Hoffmann · Bischofswerda, DE

Key dates

Filing date	Aug 7, 1978
Grant date	Apr 1, 1980
Priority date	—
Expiry date	Aug 7, 1998

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J21/04
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Cyclic ethers are manufactured by eliminating water from corresponding diols in the presence of aluminum oxide which has been obtained by precipitating aluminum hydroxide from an alkali metal aluminate solution by means of an acid and calcining the hydroxide at from 300.degree. to 1,000.degree. C.

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