Continuous process of separating electrically charged solid, pulverulent particles by electrophoresis and electroosmosis
US5171409A · kind A · utility
14Cited by
6References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 28, 1991 |
| Grant date | Dec 15, 1992 |
| Priority date | — |
| Expiry date | Jun 28, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D57/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Process of continuously separating electrically charged, solid pulverulent materials in the form of a suspension in an electrophoresis and electroosmosis cell, characterized in that a fraction of the catholyte is drained off, that a portion thereof is treated with an acid, preferably gaseous, agent, that the treated portion is re-introduced into the cathode compartment, whereas the other part of the drained-off fraction is eliminated. The acid treatment is effected during continous pH measurements on the drained-off fraction of the catholyte.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.