Extraction of certain metal cations from aqueous solutions

Details Extraction of certain metal cations from aqueous solutions Extraction of certain metal cations from aqueous solutions

1994-10-27

1995-10-17

McCarthy, Neil

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

210912, 210913, 210914, 75721, 75723, C02F 162

Patent

active

054587875

ABSTRACT:
Carbonaceous pyropolymers possessing recurring units containing at least carbon and hydrogen atoms on their surface are effective in removing from solution metal cations having a standard reduction potential to their zerovalent state of greater than -0.2 volts. Their mode of action appears to be via reduction of the metal to the zerovalent state which then is deposited on the pyropolymer surface.

REFERENCES:
patent: 4123282 (1978-10-01), Winslow
patent: 4312678 (1982-01-01), Landis
patent: 4333770 (1982-06-01), Neuzil et al.
patent: 4849112 (1989-07-01), Barder et al.

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