Method for the production of an anion-exchange resin
Abstract
Abstract PRODUCTION OF A WIDE VARIETY OF ANOION EXCHANGE RESINS WHICH HAVE GOOD CHEMICAL RESISTANCE AND THERMAL STABILITY, HIGH EXCHANGE RATE AND WHICH ARE INSIGNIFICANTLY POISONED WITH ORGANIC MATERIALS BY CONDENSING EPICHLOROHYDRIN AND AMMONIA IN A MOLAR RATIO OF FROM 1:025 TO 1:0.5 TO PRODUCE A WATER SOLUBLE OLIGOMER CONTAINING CHLOROMETHYL GROUPS, ADJUSTING THE HYDROGEN ION CONCENTRATION OF THE REACTION MEDIUM TO$7 WITH A COMPOUND WHICH MAY BE INORGANIC, ALIPHATIC ORGANIC OR AROMATIC ORGANIC, TAKEN IN AN AMOUNT OF 2 TO 0.25 EQUIVALENT PER MOLE OF THE EPICHLOROHYDRIN FEED, PREPARING A GEL, AND AGING THE GEL. THE CHARACTERISTICS OF EXCHANGE RESIN VARY DEPENDING ON THE MATERIAL USED TO ADJUST THE HYDROGEN ION CONCENTRATION.
Inventors
- 👤 Lev Leonidovich Grachev
- 👤 Igor Vasilievich Samborsky
- 👤 Alexei Feodosievic Chetverikov
Bibliographic Details
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