Polyethoxylated compounds as coal-water slurry surfactants
US4398919A · kind A · utility
9Cited by
3References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 4, 1981 |
| Grant date | Aug 16, 1983 |
| Priority date | — |
| Expiry date | Nov 4, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L1/326
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention is directed to aqueous-comminuted coal slurries. Specifically, the invention is directed to slurries that include as surfactants about 0.1 to 0.5 weight percent surfactant compounds, as for example polyoxyethylene (2) oleamide, and which typically have a coal solids content of 70%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.