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:
Jan. 24, 2023

Filed:

May. 12, 2021
Applicant:

Wisconsin Alumni Research Foundation, Madison, WI (US);

Inventors:

Bu Wang, Madison, WI (US);

Raghavendra Ragipani, Madison, WI (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/96 (2006.01); B01D 53/78 (2006.01); B01D 53/62 (2006.01); B01D 53/14 (2006.01); C01F 11/18 (2006.01);
U.S. Cl.
CPC ...
B01D 53/78 (2013.01); B01D 53/1425 (2013.01); B01D 53/1475 (2013.01); B01D 53/62 (2013.01); B01D 53/96 (2013.01); C01F 11/181 (2013.01); B01D 2251/304 (2013.01); B01D 2251/306 (2013.01); B01D 2257/504 (2013.01);
Abstract

A method of sequestering gaseous carbon dioxide in which an oxide is carbonated by contacting it with a first aqueous carbonate solution to convert a portion of the oxide into a carbonate, which precipitates from solution. By converting the oxide to a solid carbonate, the COfrom the first carbonate solution is sequestered into the precipitate. At the same time, an aqueous hydroxide solution is formed. The aqueous hydroxide solution is contacted with gaseous carbon dioxide which sequesters the gaseous COinto a second aqueous carbonate solution. The second solution so generated is then recycled back into the process and used to convert the oxide into the precipitated carbonate.


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