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. 07, 2025

Filed:

Nov. 11, 2020
Applicant:

The Board of Regents of the University of Oklahoma, Oklahoma City, OK (US);

Inventors:

Hamidreza Shabgard, Norman, OK (US);

Ramkumar N. Parthasarathy, Norman, OK (US);

Jie Cai, Norman, OK (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 1/22 (2023.01); C02F 1/26 (2023.01); C02F 101/10 (2006.01);
U.S. Cl.
CPC ...
C02F 1/265 (2013.01); C02F 1/22 (2013.01); C02F 2101/10 (2013.01); C02F 2209/02 (2013.01); C02F 2301/10 (2013.01); C02F 2305/00 (2013.01);
Abstract

A method for desalinating a brine includes the use of a cooled intermediate-cold-liquid (ICL), which combines with the brine in a crystallization or freezing tank to produce a slurry of ice, brine, and ICL. The method includes steps for separating the ICL, ice and brine, and returning the separated ICL to the source of cooled ICL tank. The method concludes with the steps of passing the separated brine to the crystallization tank, and melting the separated ice to form desalinated water. The method is significant in that it produces desalinated liquid water and solid salts. The combination of superior heat transfer with high quality purified water and competitive desalination economy makes the disclosed freeze desalination technology an attractive solution for desalination of highly concentrated brines produced in a variety of industries, including but not limited to the oil and gas industry and reject brine management.


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Shabgard, Hamidreza. (2025). Zero liquid discharge eutectic freeze desalination with intermediate cold liquid (U.S. Patent No. 12187625). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12187625

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