Process for removing toners from photocopy paper using hydroxamate collectors
US5635023A · kind A · utility
1Cited by
5References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 21, 1995 |
| Grant date | Jun 3, 1997 |
| Priority date | — |
| Expiry date | Aug 21, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/64
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A flotation process for removing toner particles from photocopied paper which utilizes the following compound as a collector: ##STR1## wherein R is an alkyl, aryl, alkylaryl or allyl group having from 4-28 carbon atoms and, preferably from 6-10 carbon atoms, and M represents an alkali metal, or alkaline earth metal radical or a hydrogen atom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.