Collecting agents for use in the froth flotation of silica-containing ores
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United States of America Patent
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Feb 16, 1988
Grant Date -
N/A
app pub date -
Sep 29, 1986
filing date -
Sep 29, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A new froth flotation collecting agent and an improved flotation process for beneficiating silica-containing ores, particularly phosphate ores, are provided. In the process, silica particles are selectively separated, by froth flotation, as a froth phase from mineral particles, particularly phosphate particles, remaining in an aqueous concentrate phase in the presence of a silica-activating ion and a mixed collecting agent containing an anionic collector and a cationic collector.
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