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.

Date of Patent:
Aug. 12, 2014

Filed:

Sep. 10, 2013
Applicant:

Intercontinental Potash Corporation, Hobbs, NM (US);

Inventors:

Steven L. Chastain, Wichita, KS (US);

Michael J. Morrison, Golden, CO (US);

Richard W. Chastain, Carlsbad, NM (US);

Donial M. Felton, Carlsbad, NM (US);

Thomas H. Neuman, Salt Lake City, UT (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01D 5/00 (2006.01); C01D 5/16 (2006.01); B01D 9/02 (2006.01); B01D 9/00 (2006.01);
U.S. Cl.
CPC ...
C01D 5/00 (2013.01); C01D 5/16 (2013.01); B01D 9/02 (2013.01); B01D 9/0036 (2013.01);
Abstract

Methods of processing an aqueous solution comprising potassium sulfate and magnesium sulfate include crystallizing KSO, crystallizing recycle crystals, and mixing at least a portion of the recycle crystals with the aqueous solution. Systems for processing potassium sulfate and magnesium sulfate include a first crystallizer and a second crystallizer in fluid communication with the second mix tank. The second crystallizer is structured and adapted to precipitate recycle crystals from the concentrated liquor to form a potassium-depleted recycle brine. The recycle crystals precipitated in the second crystallizer have a composition suitable to be recycled to the first crystallizer to increase the production of SOP.


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