Method and composition for detackifying organic contaminants in the process of pulping and papermaking
US10538880B2 · kind B2 · utility
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14References
6Claims
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Key dates
| Filing date | Jul 6, 2017 |
| Grant date | Jan 21, 2020 |
| Priority date | — |
| Expiry date | Jul 18, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/64
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention discloses a method for detackifying organic contaminants in the process of pulping and papermaking and a composition used for the same. Specifically, the invention discloses that the water circulation system of pulping and papermaking process can be provided with non-ionic cellulose ether and cationic coagulant in lower amount, through which, the deposition of organic contaminants can be inhibited under the synergistic action of pre-coagulation and detackification.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.