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.

Date of Patent:
Feb. 23, 1999

Filed:

Oct. 18, 1993
Applicant:
Inventors:

Rangasamy Pitchai, West Chester, PA (US);

Thomas S Zak, West Chester, PA (US);

Assignee:

Arco Chemical Technology, L.P., Greenville, DE (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
568862 ; 568881 ; 549509 ;
Abstract

A process for hydrogenating aqueous mixtures of 4-hydroxybutanal and 3-hydroxy-2-methylpropanal is disclosed. The process uses a metallic Pt--Ru catalyst supported on .gamma.-alumina. The process gives improved yields of 2-methyl-1,3-propanediol while minimizing the formation of unwanted by-products such as isobutyl alcohol and tetrahydrofuran.


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Pitchai, Rangasamy. (1999). Process for hydrogenating aqueous aldehyde mixtures (U.S. Patent No. 5874652). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5874652

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