Aminophosphonic acid chelate resin

Details Aminophosphonic acid chelate resin Aminophosphonic acid chelate resin

1982-04-16

1984-04-10

Schofer, Joseph L.

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

Synthetic resins

Ion-exchange polymer or process of preparing

521 31, 521 36, B01J 3920, C08F 840, C08F 830

Patent

active

044422318

ABSTRACT:
An aminophosphonic acid chelate resin, prepared by reacting an amino resin having amine-reactive groups (A) with an amino compound having one or more primary and/or secondary amino groups (B) to produce an aminated resin and subsequently reacting thus produced aminated resin with an alkylphosphonation agent (C), shows excellent adsorption ability of metal ions having low atomic weights such as calcium ions, magnesium ions, etc., when applied to a solution having high salt concentration.

REFERENCES:
patent: 4002564 (1977-01-01), Earbonel et al.
patent: 4097420 (1978-06-01), Mikes et al.
patent: 4277566 (1981-07-01), Kataoka et al.
Makromol. Chem. 128, 229-235 (1969).
J. Appl. Chem. 8, Jul., 465-468 (1958).
Chem. Abstr. 85:125027a (1976).

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