Process for the flotation of non-sulfidic minerals and ores
AssigneeCognis IP Management GmbH
InventorsJoaquin Bigorra Llosas, Dietger Koppl, Simone Hoffman-Doerr, Klaus Hinrichs
Life of this patent
Estimating the term…
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.
Claims17
A process for the flotation of non-sulfidic minerals or ore comprising:
- (a) mixing crushed crude minerals or ores with water and a collector to form a suspension, and
- (b) introducing air into said suspension in the presence of a reagent system to form a floated foam containing said non-sulfidic minerals or ores along with a flotation residue comprising the gangue,
- wherein said collector comprises 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.
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.
Dependencies are inferred from the claim text.