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:
Feb. 17, 2004
Filed:
Aug. 27, 2001
Applicant:
Inventors:
Leon Ninane, Dombasle-sur-Meurthe, FR;
Cédric Humblot, Vincennes, FR;
Pascal Gerard, Strepy-Bracquegnies, BE;
Assignee:
Solvay (Societe Anonyme), Brussels, BE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01D 3/16 ;
U.S. Cl.
CPC ...
C01D 3/16 ;
Abstract
Process for the production of sodium chloride crystals from a sodium chloride brine contaminated by potassium chloride and sulphate ions, according to which a calcium compound ( ) is added to the brine ( ) to crystallize glauberite ( ), which is isolated, the resulting aqueous solution ( ) is subjected to evaporation to crystallize sodium chloride ( ), which is collected, and the aqueous mother liquor ( ) from the crystallization of the sodium chloride is subjected to cooling ( ) to crystallize glaserite ( ).