Separation method
US5482627A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 31, 1993 |
| Grant date | Jan 9, 1996 |
| Priority date | — |
| Expiry date | Aug 31, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D33/60
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of separating solid particles from a mixture of solid and liquid components comprises filtering the mixture to provide a damp filter cake and adding a liquid densification aid to the filter cake to promote densification of the cake. The method is useful for separation of inorganic, generally crystalline, materials from aqueous slurries, for example. Suitable densification aids are flocculating agents such as solutions of alginates and gelatin, and surface active agents. The densification aids promote closer packing of solid particles in the filter cake and assist removal of residual liquid component trapped in interstices between particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.