Sodium silicate as a phosphate flotation modifier
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United States of America Patent
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Feb 27, 1990
Issued Date -
N/A
app pub date -
Dec 9, 1987
filing date -
May 16, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
This invention is directed to an improved froth flotation separation for beneficiating phosphate containing ores wherein an ore is preliminarily conditioned with an anionic agent and then subjected to froth flotation separation to concentrate the phosphate containing fraction. The improvement comprises the addition of sodium silicate near the end of the conditioning step before the beginning of the froth flotation.
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