Treating coal and other piled materials to inhibit freeze-binding
US6569348B1 · kind B1 · utility
2Cited by
20References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 12, 2002 |
| Grant date | May 27, 2003 |
| Priority date | — |
| Expiry date | Aug 12, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K3/18
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Coal and other piles of particulates exposed to the weather are inhibited from freezing by treating them with potassium formate. A viscosifier is used to retain the solution in the interstices and voids between the particulates, inhibiting drainage and waste of the solution. Corrosion inhibitors are also compatible with the solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.