Agent for dressing phosphate ore
AssigneeClariant International Ltd.
InventorsDr. Gernot Kremer, Klaus Ulrich Pedain, Juan Balassa, Pablo Lopez
Life of this patent
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Abstract
The invention relates to a flotation agent for phosphate ore, comprising a fatty acid as collector and alkoxylated alkylphenols as dispersing agents, characterized in that the alkylphenols are composed of a) 8 to 20% by weight of one or more dialkylphenols having alkyl radicals from 8 to 12 carbon atoms b) 80 to 92% by weight of one or more monoalkylphenols having alkyl radicals from 8 to 12 carbon atoms, which have been alkoxylated with 2 to 6 mol of ethylene oxide.
Claims9
A flotation agent for phosphate ore, comprising:
- a) a fatty acid;
- and,
- b) alkoxylated alkylphenols having
- I) 8 to 20% by weight of one or more dialkylphenols having alkyl radicals from 8 to 12 carbon atoms, and
- II) 80 to 92% by weight of one or more monoalkylphenols having alkyl radicals from 8 to 12 carbon atoms,
- wherein the dialkylphenols and monoalkylphenols have been alkoxylated with 2 to 6 moles of ethylene oxide.
A process for the flotation of phosphate ore comprising contacting the phosphate ore with a flotation agent comprising a collector, and a dispersing agent, said collector comprising a fatty acid comprising a linear or branched monocarboxylic acid having 8 to 26 carbons per molecule, said dispersing agent comprising alkoxylated aklyphenols having:
- a) 8 to 20% by weight of one or more dialkylphenols having alkyl radicals from 8 to 12 carbon atoms, and
- b) 80 to 92% by weight of one or more monoalkylphenols having alkyl radicals from 8 to 12 carbon atoms,
- wherein the dialkylphenols and monoalkylphenols have been alkoxylated with 2 to 6 moles of ethylene oxide.
Dependencies are inferred from the claim text.