Mine safety dust and method of production
US11359491B1 · kind B1 · utility
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18References
16Claims
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Key dates
| Filing date | Apr 27, 2021 |
| Grant date | Jun 14, 2022 |
| Priority date | — |
| Expiry date | Apr 27, 2041 |
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.