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:
May. 28, 2002
Filed:
Jun. 15, 2001
Applicant:
Inventors:
Mark T. Holtzapple, College Station, TX (US);
Richard R. Davison, Bryan, TX (US);
Assignee:
Texas A&M University System, College Station, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 5/100 ; C07C 5/908 ;
U.S. Cl.
CPC ...
C07C 5/100 ; C07C 5/908 ;
Abstract
The invention provides a method for recovering low-boiling acids from a concentrated solution of the calcium salt of the acid by treating the concentrated solution of calcium salts of the low-boiling acids with a high molecular weight tertiary amine and carbon dioxide.