Short-Chain Potassium Polyphosphate Compositions and Methods of Making
AssigneeICL Performance Products LP
InventorDavid Richard Gard
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Abstract
Disclosed herein are methods of making acidic short-chain potassium polyphosphate compositions with reduced levels of water-insoluble materials. Also disclosed herein are acidic short-chain potassium polyphosphate compositions.
Claims28
A potassium polyphosphate composition comprising a mixture of acidic potassium polyphosphates, wherein said mixture of acidic potassium polyphosphates comprises from about 1% to about 30% of its P2O5 content as orthophosphate and from about 1% to about 20% of its P2O5 content as tetrapoly- and higher polyphosphates, and wherein said composition is a solid composition of matter.
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A method of preparing a potassium polyphosphate composition, the method comprising reacting a polyphosphoric acid in the range of from about 75 wt % to about 86 wt % P2O5 and a potassium polyphosphate salt to form a reaction mixture.
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Dependencies are inferred from the claim text.