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:
Sep. 24, 2002
Filed:
Nov. 06, 2000
Applicant:
Inventors:
Guenaël Drouglazet, Kingersheim, FR;
René Genin, Mulhouse, FR;
Edouard Schwartzman, Paris, FR;
Assignee:
Befs Prokem S.A., , FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C30B 7/08 ;
U.S. Cl.
CPC ...
C30B 7/08 ;
Abstract
The present invention pertains to a process for the purification of an organic product by fractionated crystallization, characterized in that the organic product is purified by circulation in filled tubes by varying the circulation rate at each purification and concentration stage. The invention also pertains to an apparatus for the purification of an organic product by fractionated crystallization designed for the implementation of said process.