Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group vib metal
Patent
1988-03-04
1991-04-09
Morris, Theodore
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Group vib metal
423 63, 423139, 423321S, B01D 1100, C01B 2516
Patent
active
050063197
ABSTRACT:
A process is provided for purifying phosphoric acid, such as wet process phosphoric acid by extracting the impure phosphoric acid with a nonaqueous solvent and contacting the nonaqueous solution of phosphoric acid with a strongly basic anion exchange resin and recovering the purified phosphoric acid by stripping the nonaqueous solution with an aqueous solution.
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Chemical Abstracts, 49, 119, abstract 89:165603z, "Removal of Zinc from Phosphoric Acid."
Chemical Astracts, 49, 119, abstract 89:165604a, "Removal of Zinc from Phosphoric Acid."
Goyden Denise D.
Hall Richard E.
Elden R. E.
FMC Corporation
Ianno F.
Morris Theodore
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