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:
Dec. 12, 1989
Filed:
Sep. 15, 1988
Applicant:
Inventors:
Assignee:
Henkel Kommanditgesellschaft auf Aktien, Duesseldorf, DE;
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210637 ; 210641 ; 210644 ; 210645 ; 210651 ; 210653 ;
Abstract
The invention is a process for the separation of biotechnologically produced valuable materials from a fermenter broth by crossflow microfiltration and/or ultrafiltration, in which at least two modules arranged in series and fitted with porous membranes are used per stage, to produce concentrate and a permeate which contains the valuable material. The pressure of the permeate is controlled so that the absolute pressure on the permeate side is at different absolute pressure in each module.