Mine safety dust and method of production
US11021956B1 · kind B1 · utility
1Cited by
11References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2019 |
| Grant date | Jun 1, 2021 |
| Priority date | — |
| Expiry date | Jan 15, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K3/22
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A mine safety dust exhibiting improved dispersion in water. The rock dust includes dolomitic limestone particles which, when mixed at the mine site to form a slurry, stay in suspension during intermittent operation of spray machinery and with a reduced need for continuous mixing. The rock dust composition includes an inorganic salt that acts as a dispersant to improve dispersion of the rock dust in water and further acts as a deflocculant to keep the dust particles in suspension in the resultant slurry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.