Phosphate beneficiation process using methyl or ethyl esters as float oils
US6994786B2 · kind B2 · utility
4Cited by
21References
6Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 7, 2004 |
| Grant date | Feb 7, 2006 |
| Priority date | — |
| Expiry date | Aug 13, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB03D2203/06
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for use in a phosphate ore beneficiation process to minimize the long-term environmental impact of the use of petroleum based hydrocarbon materials mixed with fatty acid based primary floatation reagents for froth flotation in the flotation of phosphate ores, wherein the process comprises substituting the petroleum based hydrocarbon materials with methyl and/or ethyl esters of fatty acids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.