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:
Mar. 26, 2024
Filed:
Jul. 20, 2020
Applicant:
Arelac, Inc., San Jose, CA (US);
Inventors:
Michael Joseph Weiss, Los Gatos, CA (US);
Ryan Gilliam, San Jose, CA (US);
Assignee:
Arelac, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01F 11/18 (2006.01); C01C 1/08 (2006.01); C01C 1/16 (2006.01); C01C 1/22 (2006.01); C01C 1/24 (2006.01); C01F 11/06 (2006.01); C01F 11/24 (2006.01); C04B 2/10 (2006.01); C04B 14/28 (2006.01); C04B 28/10 (2006.01);
U.S. Cl.
CPC ...
C01F 11/183 (2013.01); C04B 2/10 (2013.01);
Abstract
Provided herein are methods comprising a) calcining limestone in a cement plant to form carbon dioxide and calcium compound selected from calcium oxide, calcium hydroxide, or combination thereof; b) treating the calcium compound with N-containing salt in water to produce an aqueous solution comprising calcium salt and N-containing salt; and c) contacting the aqueous solution with the carbon dioxide under one or more precipitation conditions to produce a precipitation material comprising calcium carbonate and a supernatant aqueous solution wherein the calcium carbonate comprises vaterite.