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AssigneeCognis IP Management CMBH
InventorsJoaquin Bigorra Llosas, Dietger Koppl, Simone Hoffmann-Doerr, Klaus Hinrichs
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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.
A process for the flotation separation of non-sulfidic minerals or ore from unwanted constituents of crude mineral or ore, the process comprising:
A method of froth flotation of non-sulfidic minerals or ores comprising adding the polymeric esterquats, which are obtained by reacting alkanolamines with a mixture of monocarboxylic acids and dicarboxylic acids in a molar ratio of 1:10 to 10:1, and quaternising the resulting esters, optionally after alkoxylation, as collectors.
A method of separating non-sulfidic minerals or ores from gangue comprising adding polymeric esterquats, which are obtained by reacting alkanolamines with a mixture of monocarboxylic acids and dicarboxylic acids in a molar ratio of 1:10 to 10:1, and quaternising the resulting esters, optionally after alkoxylation, as collectors.
Dependencies are inferred from the claim text.