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:
Aug. 08, 1978
Filed:
Oct. 12, 1976
Applicant:
Inventor:
Paul E Eckler, Terre Haute, IN (US);
Assignee:
IMC Chemical Group, Inc., Terre Haute, IN (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
252182 ; 568854 ;
Abstract
A method is disclosed for partially resolving the components of a pentaerythritol waste liquor which contains pentaerythritol, polypentaerythritols, organic syrups, water, and an alkali metal formate which comprises acidifying the waste liquor to convert the alkali metal formate to formic acid and an alkali metal salt, adding a lower aliphatic alcohol to the acidified waste liquor to react with the formic acid to form a formate ester and to precipitate the alkali metal salt, removing the formate ester by distillation, and removing the precipitated alkali metal salt.