Extractrion process for removing and recovering metals from aque

Details Extractrion process for removing and recovering metals from aque Extractrion process for removing and recovering metals from aque

1988-08-29

1992-06-02

Lewis, Michael

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group viib metal

423157, 423DIG14, C01G 4500, B01D 1100

Patent

active

051184788

ABSTRACT:
The purpose of the process is to remove and to recover metals from their aqueous solution by the extraction process. As extractant is used monoesters of phosponic acid wherein the alkyl group is a phenyl-vinyl group or straight-chained and the ester group is straight-chained. The particular advantage of the process is that the metals can be removed from aqueous solutions to be treated without neutralization of the acid quantity produced during extraction, and this acid solution produced can be circulated e.g. to the stage before the extraction. The process can be used to the removing of metals from the industrial waste waters.

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Hurst et al, Ind. Eng. Chem. Process Des. Develop.
Murthy, "Study of Some Phenyl Phosphoric Acids for Extraction of Uranium from Phosphoric Acid".
Y. Marcus et al, "Ion Exchange and Solvent Extraction of Metal Complexes".

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