METHOD OF SULFOCATIONITE PREPARING Russian patent published in 1995 - IPC

Abstract RU 2050367 C1

FIELD: preparing sulfonated cation-exchange resin on the basis of styrene and divinylbenzene copolymer. SUBSTANCE: swelling with divinylbenzene is carried out in dichloroethane in the presence of 83-88% sulfuric acid, then at 60-75 C oleum is added for 5-30 min and sulfonation is carried out at 90-125 C. EFFECT: improved method of sulfocationite preparing.

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RU 2 050 367 C1

Authors

Stepanov V.N.

Zlobina A.S.

Petrova N.A.

Imagulova O.S.

Dates

1995-12-20—Published

1993-08-16—Filed