Process for removing heavy metal ions with a chelating cation ex

Details Process for removing heavy metal ions with a chelating cation ex Process for removing heavy metal ions with a chelating cation ex

1993-12-07

1996-06-11

Bos, Steven

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group ib metal

423 54, 423100, 423139, 423DIG14, 210688, B01D 1504

Patent

active

055253156

ABSTRACT:
The invention is for a process of removal of dissolved heavy metal cation contaminants from an organic solution. The process of the invention involves providing a chelating ion exchange resin modified by removal of sodium ions therefrom and contacting said organic solution with said modified exchange resin for a time sufficient to remove ionic metal impurities. The invention is useful for removal of ionic contaminants from organic solutions requiring high purity.

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patent: 4895905 (1990-01-01), Schneider et al.
patent: 4946595 (1990-08-01), Miller, Jr.
patent: 5073622 (1991-12-01), Wojtech et al.
patent: 5108615 (1992-04-01), Hosea et al.
patent: 5300628 (1994-04-01), Honda
patent: 5378802 (1995-01-01), Honda
Translation of Japan 1-228,560.

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