A process and extractant for removing fluorine compounds from aqueous phosphoric acid.

摘要

A process for removing fluorine compounds from aqueous phosphoric acid containing the same, comprises contacting the phosphoric acid with a water insoluble extractant comprising phosphoric acid and an oil soluble amine. The amine is substantially water insoluble both in free and in salt form and the extractant is substantially free of fluorine, sulfate and metal impurities. An extractant for use in the above process comprises an oil soluble amine which is substantially water insoluble both in free and in salt form, and a phosphoric acid.