Process for the preparation of weakly acid cation exchange resin

Details Process for the preparation of weakly acid cation exchange resin Process for the preparation of weakly acid cation exchange resin

1991-01-07

1992-12-29

Schofer, Joseph L.

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

Synthetic resins

Ion-exchange polymer or process of preparing

521 25, 521 30, 521 38, 5253291, 5253292, 5253293, 525369, 5263171, C08F 812, C08F 2044

Patent

active

051751933

ABSTRACT:
The invention relates to an environment-friendly process for the preparation of weakly acid cation exchange resins by hydrolysis of crosslinked acrylonitrile bead polymers with an alkaline hydrolizing agent at elevated temperature, according to which the bead polymer and alkaline hydrolizing agent are brought together at elevated temperature only.

REFERENCES:
patent: 3544488 (1970-12-01), Corte
patent: 4614751 (1986-09-01), Chonde

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