Process for removing fluorine and organic compounds from prepuri

Details Process for removing fluorine and organic compounds from prepuri Process for removing fluorine and organic compounds from prepuri

1984-06-28

1985-09-03

Heller, Gregory A.

Chemistry of inorganic compounds

Phosphorus or compound thereof

Oxygen containing

423321S, C01B 2516

Patent

active

045391920

ABSTRACT:
The disclosure provides for phosphoric acid to be freed in a single process stage from fluorine and organic contaminants. To this end, the disclosure provides for the acid to be introduced into the upper portion of a closed structural element, for it to be treated therein at elevated temperature and pressure with steam flowing countercurrently to the acid, and for the acid so treated to be reacted in the lower portion of the structural element with hydrogen peroxide. The disclosure also provides an apparatus for carrying out the process.

REFERENCES:
patent: 2165100 (1939-07-01), Hettrick
patent: 4233278 (1980-11-01), Korchnak
patent: 4279878 (1981-07-01), Maurer et al.
patent: 4457899 (1984-07-01), Grotyohann et al.

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