Process for the separation of non-sulfidic minerals and ores from unwanted constituents of crude mineral and ore
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United States of America Patent
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Dec 13, 2016
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app pub date -
Jul 2, 2015
filing date -
Jan 26, 2007
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Abstract
A process for the flotation of non-sulfidic minerals or ores, is disclosed in which crushed crude minerals or ores are mixed with water and a collector to form a suspension, air is introduced into the suspension in the presence of a reagent system, and a floated foam containing the non-sulfidic mineral or ores is formed therein along with a flotation residue comprising the gangue polymeric esterquats as the collector polymeric esterquats. The polymeric esterquats are obtained by reacting alkanolamines with a mixture of monocarboxylic acids and dicarboxylic acids and quaternizing the resulting esters, optionally after alkoxylation.
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