Chelating resins

Details Chelating resins Chelating resins

1997-04-21

1998-09-08

Zitomer, Fred

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Ion-exchange polymer or process of preparing

210681, 210687, 210688, 521 30, 521 31, 521 33, 521 39, 525340, 525379, B01J 3918, C02F 142, C02F 158, C02F 162

Patent

active

058046062

ABSTRACT:
The present invention is concerned with improved chelating resins. More particularly, the present invention is concerned with macroporous, aminoalkylphosphonic or iminodiacetic acid chelating resins having improved stability and capacity in the removal of cations (e.g. calcium, magnesium, barium and strontium) from brines and in the removal of metals (e.g. nickel, copper and zinc) from waste streams.

REFERENCES:
patent: 4002564 (1977-01-01), Carbonel et al.
patent: 4442231 (1984-04-01), Kataoka et al.
patent: 4818773 (1989-04-01), Cornette et al.
patent: 4830837 (1989-05-01), Justice
patent: 4895905 (1990-01-01), Schneider et al.
patent: 5109074 (1992-04-01), Eiffler et al.

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