Dust suppression formulas using plasticized cellulose ethers
US9267063B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 19, 2012 |
| Grant date | Feb 23, 2016 |
| Priority date | — |
| Expiry date | Nov 19, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K3/22
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of treating a plurality of fines of a dusting material to prevent emanation of dust from the dusting material is described. An aqueous solution comprising a mixture of soluble non-ionic cellulose ether, a plasticizer, and a surfactant is provided. The aqueous solution is applied to a dusting material comprising a plurality of fines. The dusting material is transferred during the applying step from a first location to a second location as the aqueous solution is applied to the plurality of fines. The dusting material is mixed with the aqueous solution to coat the plurality of fines with the aqueous solution. The treated dusting material is accumulated into a mass of the material subsequent to the applying step wherein the aqueous solution is substantially evenly distributed throughout an interior portion of the mass of the treated dusting material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.