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:
Sep. 28, 1982
Filed:
Oct. 31, 1980
Applicant:
Inventors:
Tadahiko Nishimura, Iwakuni, JP;
Hiroshi Yamamoto, Ichihara, JP;
Masatoshi Osuo, Ichihara, JP;
Akio Kanazawa, Ichihara, JP;
Assignee:
Mitsui Petrochemical Industries, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
568754 ; 203 64 ; 568798 ;
Abstract
In an improved process for recovering a phenolic compound, the improvement comprising, subjecting a phenolic containing fraction recovered overhead in an extractive distillation, to a subsequent steam distillation; recovering the phenolic product as a bottoms fraction therefrom, and recycling such product to some point upstream in the process.