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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 4695410 B1

PDFFull Text
Date of Patent:
Sep. 22, 1987

Filed:

Aug. 29, 1986

Recovery of phenol from aqueous solution

Applicant:
Inventors:

Gary J Lynch, Bridgeton, MO (US);

Chen-Hsyong Yang, Chesterfield, MO (US);

Assignee:

Monsanto Company, St. Louis, MO (US);

Attorneys:

Loyer; R.

Hoffman; A.

Cole; A.

Primary Examiner:

Werren B Lone

Int. Cl.
CPC ...
C07F / ; C07C / ; C07C / ;
U.S. Cl.
CPC ...
2604105 ; 568749 ; 568748 ;
Abstract

The disclosed process is employed to recover phenol from aqueous solutions produced by distillation of the product of a process for producing a phenyl ester by the reaction of a carboxylic acid and phenol. Purified phenyl ester is employed to extract phenol from the aqueous solution. The extract is combined with raw product for recovery of the phenol and phenyl ester. In a preferred embodiment the process for producing the phenyl ester is continuous and the extract containing phenol and phenyl ester are fed to the dewatered ester stream for product recovery.

Find Patent Forward Citations

Lynch, Gary. (1987). Recovery of phenol from aqueous solution (U.S. Patent No. 4695410). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4695410

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

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