Process for obtaining purified water from wet sludges and slurries of solid materials
US4670159A · kind A · utility
17Cited by
7References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 6, 1984 |
| Grant date | Jun 2, 1987 |
| Priority date | — |
| Expiry date | Jul 6, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2101/32
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
The invention relates to a process for obtaining purified water from wet sludges and slurries of solid materials by treating these materials with a clathrate forming agent at a temperature above the freezing point of water to form a solid clathrate and dewatered solid material. The clathrate and solid material are then separated and the clathrate decomposed to give purified water and clathrate forming agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.