Fluidizing and dispersing additives for coal-water dispersions
US4969929A · kind A · utility
2Cited by
6References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 28, 1988 |
| Grant date | Nov 13, 1990 |
| Priority date | — |
| Expiry date | Apr 28, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S516/01
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A fluidizing and dispersing additive for coal-water mixtures, constituted by an ethoxylated adduct of either natural humic acids, or of humic acids deriving from partial coal oxidation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.