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 10329166 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 25, 2019

Filed:

Apr. 01, 2014
Applicant:

Sasakura Engineering Co., Ltd., Osaka-shi, JP;

Inventors:

Junji Mizutani, Osaka, JP;

Yo Fujimoto, Osaka, JP;

Tatsuya Taguchi, Osaka, JP;

Yoshiyuki Hatano, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 1/16 (2006.01); B01D 1/18 (2006.01); B01D 1/04 (2006.01); B01D 9/00 (2006.01); C02F 1/52 (2006.01); C02F 1/04 (2006.01); C02F 1/44 (2006.01);
U.S. Cl.
CPC ...
C02F 1/042 (2013.01); B01D 1/04 (2013.01); B01D 1/16 (2013.01); B01D 1/18 (2013.01); B01D 9/0018 (2013.01); B01D 9/0027 (2013.01); B01D 9/0031 (2013.01); B01D 9/0036 (2013.01); C02F 1/441 (2013.01); C02F 2001/5218 (2013.01); Y02W 10/37 (2015.05);
Abstract

The present invention provides an aqueous solution evaporative treatment method that makes it possible to efficiently perform evaporative treatment of an aqueous solution containing calcium, magnesium, and silica. The aqueous solution evaporative treatment method comprises a seed crystal mixing step of adding to and mixing with an aqueous solution containing calcium, magnesium, and silica at least any one of magnesium salt and silicate together with calcium salt as seed crystals, and an evaporative concentration step of evaporatively concentrating the aqueous solution together with the seed crystals.


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