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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 5264085 B1

PDFFull Text
Date of Patent:
Nov. 23, 1993

Filed:

Aug. 20, 1992

Method of separating components of phenols mixture by distillation

Applicant:
Inventors:

Masashi Inaba, Yokkaichi, JP;

Yoshikazu Higaki, Yokkaichi, JP;

Kimikatsu Jinno, Yokkaichi, JP;

Mitsugi Kataoka, Yokkaichi, JP;

Norio Sato, Yokkaichi, JP;

Masayuki Honda, Yokkaichi, JP;

Assignee:

Mitsubishi Petrochemical Company, Ltd., Tokyo, JP;

Attorney:

Oblon, Spivak, McClelland, Maier & Neustadt

Primary Examiner:

Virginia Manoharan

Int. Cl.
CPC ...
B01D / ; C07C / ; C07C / ; C07C / ;
U.S. Cl.
CPC ...
203 39 ; 203 43 ; 203 96 ; 203 97 ; 203 98 ; 203 93 ; 203 94 ; 203 99 ; 203D / ; 203D / ; 568749 ; 568916 ; 568918 ;
Abstract

A method of continuously distilling off the components of a mixture containing phenols, water and methanol using a single distillation column, wherein methanol is recovered from the top of the column, water containing phenols is dragged as a side stream from a recovery section of the column, and phenols are recovered as a bottom product. The method permits efficient separation by the single distillation column of the three components with high purity and low utility energy.

Find Patent Forward Citations

Inaba, Masashi. (1993). Method of separating components of phenols mixture by distillation (U.S. Patent No. 5264085). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5264085

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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