On-line control and reaction process for pH adjustment
US10316469B2 · kind B2 · utility
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11Claims
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Key dates
| Filing date | Dec 9, 2015 |
| Grant date | Jun 11, 2019 |
| Priority date | — |
| Expiry date | Feb 2, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2433/26
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
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 (δ1) and a target pH value (δ2), 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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.