Abstract: The present invention relates to a process for treating non-sulfidic ores with a collector composition containing a primary and a secondary collector, wherein the primary collector is selected from the group of amphoteric and anionic surface active compounds and the secondary collector is an ethoxylated fatty acid wherein the average degree of ethoxylation is higher than 0 and less than 2, to collector compositions suitable for use in the above process, and to pulp comprising such collector compositions.

Abstract: The present invention relates to a process for treating non-sulfidic ores with a collector composition containing a primary and a secondary collector, wherein the primary collector is selected from the group of amphoteric and anionic surface active compounds and the secondary collector is an ethoxylated fatty acid wherein the average degree of ethoxylation is higher than 0 and less than 2, to collector compositions suitable for use in the above process, and to pulp comprising such collector compositions.

Abstract: A collector composition and process to treat ores with a collector composition that comprises a nitrile group-containing compound of the formula (I) wherein R is a saturated or unsaturated, linear or branched, hydrocarbon group containing 8 to 26 carbon atoms, R? is a saturated or unsaturated, linear or branched, hydrocarbon group containing 1 to 26 carbon atoms or a hydrogen atom or (-(D)j-CnH2nCN) group or R-((A)m-(B))x group, A is (—O—CH2CH2—); (—O—CH(CH3)CH2—) or (—O—CH(CH2CH3)CH2—), B is (—O—CpH2p—), D is (—CH2CH2—O—); (—CH(CH3)CH2—O—) or (—CH(CH2CH3)CH2—O—), x is 0 or 1, R?? is hydrocarbon group containing 1 to 4 carbon atoms, Y is halide or methylsulfate, m, j are each independently an integer of 0-5, R?? is a saturated or unsaturated, linear or branched, hydrocarbon group containing 1 to 26 carbon atoms, and n and p are each independently an integer of 1 to 5.

Abstract: The present invention relates to a compound obtainable by reacting an N-acyl neutral amino acid or a salt thereof, or an N-acyl neutral amino acid oligopeptide or a salt thereof with a monohydroxy monocarboxylic acid or a salt thereof. This compound is useful as a collector in a process for froth flotation of non-sulfidic ores, especially phosphate ores. The invention also relates to a method which comprises the steps of a) conditioning a pulped phosphate ore, wherein the phosphate ore comprises a calcium phosphate mineral or a mixture of such minerals, and gangue minerals, with an effective amount of a calcium phosphate mineral collector reagent, which is the above-mentioned compound, and optionally other flotation aids and b) performing a froth flotation process to recover the calcium phosphate mineral(s).

Abstract: The present invention relates to the use of branched fatty alcohol-based compounds selected from the group of fatty alcohols with 12-16 carbon atoms having a degree of branching of 1-3, and their alkoxylates with a degree of ethoxylation of up to 3, as secondary collectors for the froth flotation of non-sulfidic ores, in combination with a primary collector selected from the group of amphoteric and anionic surface active compounds.

Abstract: 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 and a 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.

Abstract: The present invention relates to the use of branched fatty alcohol-based compounds selected from the group of fatty alcohols with 12-16 carbon atoms having a degree of branching of 1-3, and their alkoxylates with a degree of ethoxylation of up to 3, as secondary collectors for the froth flotation of non-sulfidic ores, incombination with a primary collector selected from the group of amphoteric and anionic surface active compounds.

Abstract: The present invention relates to a compound obtainable by reacting an N-acyl neutral amino acid or a salt thereof, or an N-acyl neutral amino acid oligopeptide or a salt thereof with a monohydroxy monocarboxylic acid or a salt thereof. This compound is useful as a collector in a process for froth flotation of non-sulfidic ores, especially phosphate ores. The invention also relates to a method which comprises the steps of a) conditioning a pulped phosphate ore, wherein the phosphate ore comprises a calcium phosphate mineral or a mixture of such minerals, and gangue minerals, with an effective amount of a calcium phosphate mineral collector reagent, which is the above-mentioned compound, and optionally other flotation aids and b) performing a froth flotation process to recover the calcium phosphate mineral(s).