Patent · US Expired

Process for separation of substituted benzene isomers

US4571441A · kind A · utility

10Cited by

9References

10Claims

0Family size

Assignee

TORAY INDUSTRIES, INC. · JP

Inventors

Kishio Miwa · Moriyama, JP
Yukiko Nagaoka · Kamakura, JP
Takehisa Inoue · Tokyo, JP

Key dates

Filing date	Jul 20, 1983
Grant date	Feb 18, 1986
Priority date	—
Expiry date	Jul 20, 2003

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C17/389
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

A substituted benzene isomer mixture containing a meta-substituted benzene or 1,3,5-substituted benzene is contacted with an adsorbent of a faujasite type zeolite containing a Ag cation and/or a Cu cation, whereby the meta-substituted benzene or 1,3,5-substituted benzene is separated and recovered as a raffinate component.

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