Compositions for the freeze protection of coal solids
US4666741A · kind A · utility
5Cited by
4References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 22, 1986 |
| Grant date | May 19, 1987 |
| Priority date | — |
| Expiry date | Apr 22, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K3/18
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Certain blends of mono and diethylene glycol and ethers thereof, when combined in certain proportions with urea, are excellent freeze protection for moist coal solids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.