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.:
Date of Patent:
Jan. 06, 1987
Filed:
Mar. 25, 1985
Applicant:
Inventors:
George D Suciu, Ridgewood, NJ (US);
Ali M Khonsari, Bloomfield, NJ (US);
Assignee:
Lummus Crest, Inc., Bloomfield, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
568757 ; 568749 ; 568754 ; 203 34 ; 203 36 ;
Abstract
Phenol feed to a steam distilling column, containing alpha-methylstyrene and mesityl oxide, is treated with a base, without acidification, and the heavy phenol product is acidified and distilled in a high purity column to recover high purity phenol as a sidestream and lighter components as overhead. Acidification after steam distilling, rather than prior to steam distilling, increases phenol recovery by reducing the overhead pasteurizing cut from the high purity column.
Suciu, George. (1987). Production of high purity phenol (U.S. Patent No. 4634796). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4634796
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile