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:
Nov. 24, 1992
Filed:
Oct. 04, 1991
Applicant:
Inventors:
Carl A Avison, Hull, GB;
Ian D Dobson, North Humberside, GB;
Benjamin P Gracey, North Humberside, GB;
Barry Hudson, North Humberside, GB;
Thakor Kikabhai, North Humberside, GB;
Assignee:
BP Chemicals Limited, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
568388 ; 568343 ; 568312 ;
Abstract
This invention relates to an improved process for the production of hydroxyketones, especially dihydroxyacetone, by the condensation of one or more aldehydes in the presence of a catalyst and the use of specific process train. The product of this process is a relatively pure and any waste products from the reaction are environmentally friendly because none of the chemical components are discharged into the waste streams.