logo

For the Inventor, By the Inventor

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.:

US 9975100 B1

PDFFull Text
Date of Patent:
May. 22, 2018

Filed:

May. 09, 2014

Recovering a caustic solution via calcium carbonate crystal aggregates

Applicant:

Carbon Engineering Ltd., Squamish, CA;

Inventors:

Kenton Robert Heidel, Calgary, CA;

Jane Anne Ritchie, Calgary, CA;

Arvinder Pal Singh Kainth, Calgary, CA;

David William Keith, Calgary, CA;

Assignee:

Carbon Engineering Ltd., Squamish, CA;

Attorney:

Fish & Richardson P.C.

Primary Examiner:

Lessanework Seifu

Int. Cl.
CPC ...
B01J 8/20 (2006.01); B01J 6/00 (2006.01); B01D 9/00 (2006.01); C01D 1/22 (2006.01); D21C 11/00 (2006.01); C01F 11/18 (2006.01); C01B 32/50 (2017.01); B01D 53/62 (2006.01);
U.S. Cl.
CPC ...
B01J 8/20 (2013.01); B01D 9/0036 (2013.01); B01D 9/0054 (2013.01); B01D 9/0059 (2013.01); B01D 9/0063 (2013.01); B01J 6/001 (2013.01); C01B 32/50 (2017.08); C01D 1/22 (2013.01); C01F 11/181 (2013.01); D21C 11/0078 (2013.01); B01D 53/62 (2013.01); B01D 2009/0086 (2013.01); B01D 2251/404 (2013.01); B01D 2257/504 (2013.01); Y02P 20/152 (2015.11); Y02P 40/44 (2015.11); Y02P 70/24 (2015.11);
Abstract

Techniques for converting a portion of a carbonate to hydroxide include receiving an alkaline carbonate solution that includes between 0.1M (moles per liter of solution) to 4.0M hydroxide and between 0.1M to 4.1M carbonate; reacting, in a slaking process, quicklime (CaO) and a low carbonate content fluid to yield a slurry of primarily slaked lime (Ca(OH)); and reacting the Ca(OH)slurry and the alkaline carbonate solution to grow calcium carbonate (CaCO) crystal aggregates of 0.0005 mmto 5 mmin volume in a fluidized-bed reactive crystallizer.

Find Patent Forward Citations

Loading…