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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 5435892 B1

PDFFull Text
Date of Patent:
Jul. 25, 1995

Filed:

Aug. 30, 1993

Process for separating methanol and methyl acrylate or methyl

Applicant:
Inventors:

Seiji Miyazaki, Hiroshima, JP;

Yasutaka Nakashima, Hiroshima, JP;

Toshihiro Satoh, Hiroshima, JP;

Tadao Ida, Ishikawa, JP;

Etsuji Sato, Osaka, JP;

Akio Tani, Osaka, JP;

Assignees:

Mitsubishi Rayon Co., Ltd., both of, JP;

Osaka Organic Chemical Ind. Co., Ltd., both of, JP;

Attorney:

Cushman Darby & Cushman

Primary Examiner:

Virginia Manoharan

Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
203 95 ; 203 97 ; 203 98 ; 203D / ; 203D / ; 203D / ; 560218 ; 568913 ;
Abstract

A distillation process is used to separate methanol from a mixture of methanol with methyl acrylate or methyl methacrylate, as well as from a mixture of methanol and water with methyl acrylate or methyl methacrylate with the use of an azeotropic solvent, which forms an azeotropic mixture with methanol. In distilling such a mixture by the use of a distillation column:

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Miyazaki, Seiji. (1995). Process for separating methanol and methyl acrylate or methyl (U.S. Patent No. 5435892). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5435892

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