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:
Feb. 24, 1987
Filed:
Apr. 30, 1985
Applicant:
Inventors:
James L Gaddy, Fayetteville, AR (US);
Edgar C Clausen, Fayetteville, AR (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B / ; C13K / ;
U.S. Cl.
CPC ...
423488 ; 127 37 ; 127 461 ;
Abstract
A method of recovering concentrated hydrochloric acid from the product obtained from the acid hydrolysis of a cellulose containing material such as biomass. The method involves contacting such product with an extracting solvent, of which a major portion is acetophenone, to separate the product into a hydrochloric acid enriched phase and a hydrochloric acid depleted phase and then separating and recovering the hydrochloric acid from the hydrochloric acid enriched phase.