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. 12, 2019
Filed:
Mar. 10, 2015
Applicant:
Hl Seawater Holdings, Llc, Houston, TX (US);
Inventor:
Paul Steven Wallace, Katy, TX (US);
Assignee:
HL Seawater Holdings, LLC, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 61/02 (2006.01); B01D 61/44 (2006.01); B01D 61/58 (2006.01); C02F 1/44 (2006.01); C02F 1/469 (2006.01); C02F 101/10 (2006.01); C02F 103/08 (2006.01);
U.S. Cl.
CPC ...
B01D 61/027 (2013.01); B01D 61/02 (2013.01); B01D 61/025 (2013.01); B01D 61/44 (2013.01); B01D 61/58 (2013.01); C02F 1/44 (2013.01); C02F 1/441 (2013.01); C02F 1/442 (2013.01); C02F 1/4693 (2013.01); B01D 2311/04 (2013.01); B01D 2311/103 (2013.01); C02F 2101/10 (2013.01); C02F 2103/08 (2013.01);
Abstract
A method of producing desalinated water and recovering minerals from the feedwater uses membrane separation and electrodialysis brine concentration. This process can recover all of the minerals as high purity industrial minerals, including capturing the calcium and sulfate as agricultural grade gypsum and boron as high purity boric acid. In addition the process allows the use of low cost lime or dolime to produce valuable magnesium hydroxide.