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:
Apr. 18, 1989
Filed:
Oct. 18, 1984
Applicant:
Inventor:
Toyoyasu Saida, Fujisawa, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C12P / ; C12P / ; C12P / ;
U.S. Cl.
CPC ...
435162 ; 435161 ; 435255 ; 435942 ;
Abstract
Ethanol is prepared from a saccharide such as glucose by a fermentation process. The efficiency of the fermentation is improved by feeding a residual fermented liquid obtained from an evaporator used to vaporize ethanol to a reverse osmosis unit, and then subjecting the residual liquid to reverse osmosis to remove water therefrom. This residual liquid is then recycled to the original fermenter, or to a second fermenter having a smaller volume than the first fermenter.