Patent · US Expired

Preparation of olefins from methaol and/or dimethyl ether

US4423273A · kind A · utility

9Cited by

5References

8Claims

0Family size

Assignee

BASF SE

Inventors

Wolfgang Hoelderich · Bischofswerda, DE
Wolf D. Mross · Bischofswerda, DE
Matthias Schwarzmann · Schifferstadt, DE

Key dates

Filing date	Jul 22, 1982
Grant date	Dec 27, 1983
Priority date	—
Expiry date	Jul 22, 2002

Classification

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

Abstract

The process for the preparation of olefins by converting methanol and/or dimethyl ether in the presence of a zeolite catalyst is improved by treating the catalyst with hydrogen fluoride. Aluminosilicate zeolites and borosilicate zeolites, especially those of the pentasil type, are chiefly used.

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