Dewatering aids for coal and other mineral particulates
US4447344A · kind A · utility
17Cited by
21References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 2, 1983 |
| Grant date | May 8, 1984 |
| Priority date | — |
| Expiry date | Jun 2, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K3/18
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A composition for altering the water function characteristics of a wet, particulate mineral mass combines a surfactant material having an HLB number of from about 6.0 to about 12.0 with a surfactant adsorption inhibitory amount of a coupling agent or hydrotrope. Urea may be added to the composition for the prevention of freezing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.