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POLYESTER POLYQUATERNARY AMMONIUM COMPOUND COLLECTORS FOR REVERSE FROTH FLOTATION OF SILICATES FROM NONSULFIDIC ORES
POLYESTER POLYQUATERNARY AMMONIUM COMPOUND COLLECTORS FOR REVERSE FROTH FLOTATION OF SILICATES FROM NONSULFIDIC ORES
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机译:从非硫矿石中反硅浮选浮选的聚酯多元季铵化合物收集器
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摘要
The present invention relates to a compound obtainable by the condensation of a polyol having 3-4 hydroxyl groups, adicarboxylic acid or a derivative thereof, an alkanolamine anda fatty acid, followed by reaction with an alkylating agent. This compound is useful as a collector in a process for the reverse froth flotation of non-sulfidic ores containing silicate as impurities, especially phosphate ores.
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