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. 24, 1982
Filed:
Aug. 25, 1980
Applicant:
Inventors:
Michael R Ladisch, West Lafayette, IN (US);
George T Tsao, West Lafayette, IN (US);
Assignee:
Purdue Research Foundation, West LaFayette, IN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; B01D / ; B01J / ; C07C / ;
U.S. Cl.
CPC ...
203 19 ; 203 41 ; 203 49 ; 203D / ; 55 62 ; 55 74 ; 568916 ; 568917 ; 252426 ;
Abstract
A method for dehydration and/or enrichment of aqueous alcohol mixtures wherein the mixtures in the vapor state are contacted with a dehydration agent which is composed of cellulose, caboxymethylcellulose, cornmeal, cracked corn, corn cobs, wheat straw, bagasse, starch, hemicellulose, wood chips, other grains, other agricultural residues or mixtures thereof.