Alkoxylate surfactant compositions and the use thereof in paper deinking
US5712233A · kind A · utility
4Cited by
28References
34Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 22, 1996 |
| Grant date | Jan 27, 1998 |
| Priority date | — |
| Expiry date | Jan 22, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/64
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Enhanced removal of ink in the froth flotation deinking of waste paper is provided by carrying out the flotation with one or more dialkoxylates of certain cyclohexenyl diacids, one or more alkoxylates of C.sub.2-12 polyhydric alcohols, or a mixture thereof. Improved performance is also provided by adding one or more alkyl diglyceryl disulfonates, C.sub.8 to C.sub.18 alpha-olefin sulfonates and/or alkyl ether sulfates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.