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:
Jun. 02, 1998
Filed:
Dec. 04, 1996
Bernd Ahlers, Frankfurt am Main, DE;
Rudolf Bonsch, Nackenheim, DE;
Michael Eichelsbacher, Mainz, DE;
Jurgen Kuhn, Frankfurt am Main, DE;
Ulrich Sander, Friedrichsdorf, DE;
Jiri Pendl, Plzen, CS;
Frantisek Hotek, Petrohrad, CS;
Vaclav Cerny, Kaznejov, CS;
Metallgesellschaft Aktiengesellschaft, Frankfurt am Main, DE;
Abstract
A process is disclosed for preparing an organic acid and/or its salts from a solution obtained through fermentation. In this process, a pure carbohydrate-containing raw material is used. The acid-containing solution prepared by means of fermentation is supplied to a cell separation, and the acid-containing permeate is supplied to a protein precipitation, where it is mixed with a silicon-containing precipitant at temperatures between 2.degree. and 70.degree. C. The solution thus obtained is supplied to a protein separation, and the acid-containing permeate is concentrated and then supplied to a single- or multi-stage crystallization or a granulation.