Thallium extraction process

Details Thallium extraction process Thallium extraction process

1992-07-27

1994-03-22

Brunsman, David

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group iiia metal or beryllium

210670, 210688, C01G 1500

Patent

active

052962040

ABSTRACT:
The invention relates to a process for extracting thallium present especially in aqueous wastes of industrial origin.
The process, which makes it possible to extract and recover thallium from a solution which contains it in the form of a salt of a strong inorganic acid, comprises a stage of bringing the said solution into contact with an ion exchange resin containing a thiol group.
This process exhibits good selectivity in relation to salts of metals or metalloids which are usually present in industrial aqueous wastes.

REFERENCES:
patent: 2897050 (1959-07-01), Jaffe
patent: 3755161 (1973-08-01), Yokota et al.
patent: 3847841 (1974-11-01), Motani et al.
patent: 4241039 (1980-12-01), Koh et al.
patent: 4297183 (1991-10-01), Georgeaux
patent: 4525332 (1985-06-01), Boateng et al.
CA 94(4):91164n, Sudersanan et al., Jan. 1981.

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