Froth flotation of calcium borate minerals
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United States of America Patent
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Jun 16, 1992
Issued Date -
N/A
app pub date -
Feb 6, 1991
filing date -
Jul 29, 1989
priority date (Note) -
Expired
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Abstract
Particles of a calcium borate mineral, such as colemanite or ulexite, are recovered from an ore by a froth flotation process using a dialkyl sulphosuccinate as collector. Suitable dialkyl sulphosuccinates include sodium or ammonium dinonyl sulphosuccinate, sodium or ammonium di-isodecyl sulphosuccinate, and sodium or ammonium dilauryl sulphosuccinate. The dialkyl sulphosuccinates may be used as aqueous solutions or as solutions in solvents consisting of water and methylated spirit, a dihydric alcohol such as ethylene glycol or hexylene glycol or a monohydric alcohol containing more than 5 carbons.
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