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:
Oct. 08, 1996
Filed:
Dec. 20, 1994
Applicant:
Inventors:
Assignee:
Kali und Salz Beteiligungs AG, Kassel, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B03C / ;
U.S. Cl.
CPC ...
95 58 ; 95 60 ; 96 17 ; 96 52 ; 96 74 ; 2091272 ; 2091274 ;
Abstract
A process for after-purifying a kieserite mixture pre-concentrated electrostatically across a number of stages is characterized in that the outside air used in the after purification stage is adjusted by dehumidification in a conventional dehumidification plant to an absolute moisture of 4.5 g/m.sup.3, and the kieserite mixture to be separated by triboelectrically charging with said air at a temperature of below 40.degree. C.