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:
Jun. 11, 2019

Filed:

Dec. 09, 2015
Applicant:

Ecolab Usa Inc., St. Paul, MN (US);

Inventors:

Meng Zhang, Shanghai, CN;

Na Xu, Shanghai, CN;

Jun Li, Shanghai, CN;

Yulin Zhao, Shanghai, CN;

Assignee:

Ecolab USA Inc., St. Paul, MN (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21H 23/10 (2006.01); G05B 13/00 (2006.01); C08J 3/21 (2006.01); D21H 21/18 (2006.01); D21H 23/06 (2006.01); G05D 21/02 (2006.01); D21H 17/37 (2006.01); C08J 3/00 (2006.01); D21H 21/20 (2006.01); D21H 23/08 (2006.01); B01F 13/10 (2006.01);
U.S. Cl.
CPC ...
D21H 23/10 (2013.01); C08J 3/005 (2013.01); C08J 3/21 (2013.01); D21H 17/375 (2013.01); D21H 21/18 (2013.01); D21H 21/20 (2013.01); D21H 23/06 (2013.01); D21H 23/08 (2013.01); G05B 13/00 (2013.01); G05D 21/02 (2013.01); B01F 2013/1091 (2013.01); C08J 2333/26 (2013.01); C08J 2433/26 (2013.01);
Abstract

An on-line control and reaction process for pH adjustment and a control device for automatically adjusting pH value are provided. The process includes mixing a first enhancer and a second enhancer, optionally after diluting the first enhancer and/or the second enhancer with water, to form a mixture, setting a base pH value (δ) and a target pH value (δ), and adding pH adjuster into the mixture via a pH control unit and mixing to obtain a product with the target pH value. The pH control unit adjusts the adding of the pH adjuster by measuring or inputting certain parameters.


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