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. 01, 2021
Filed:
May. 09, 2018
Applicant:
Ksm Inc., Québec, CA;
Inventors:
Jean-Marc Lalancette, Québec, CA;
David Lemieux, Québec, CA;
Assignee:
KSM INC., Quebec, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C05D 1/02 (2006.01); C01D 5/02 (2006.01); C01D 5/12 (2006.01); C01F 5/40 (2006.01);
U.S. Cl.
CPC ...
C05D 1/02 (2013.01); C01D 5/02 (2013.01); C01D 5/12 (2013.01); C01F 5/40 (2013.01);
Abstract
A method for producing a double sulfate of potassium and magnesium by dry mechanical attrition of potassium sulfate and magnesium sulfate hexahydrate, comprising obtaining potassium sulfate by sulfatation of potash to bisulfate of potassium and disproportionation of the bisulfate of potassium to potassium sulfate in a water-methanol solution, and obtaining magnesium sulfate hexahydrate by sonic-assisted partial sulfatation of calcined serpentinic silicate.