WEAKLY BASIC ANION EXCHANGERS, THEIR PREPARATION BY AMINOLYSIS AND USE THEREOF FOR REMOVING SULFATE ION FROM AQUEOUS LIQUID

Weakly basic anion exchangers of the poly(meth)acrylamide type, which have been prepared by aminolysis of poly(meth)acrylonitrile or poly(meth)acrylate with polyamines of a defined composition, have an improved uptake capacity for sulphate ions and are suitable for selective removal of sulphate ions...

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Bibliographische Detailangaben
Hauptverfasser:	HARORUTO HERAA, HAIKO HOFUMAN, FURANTSUURUDORUFU MINTSU, RAINHORUTO EMU KURITSUPAA, ARUFUREETO MITSUCHIYUKAA
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS BASED THEREON COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM,RUBIDIUM, CAESIUM, OR FRANCIUM INORGANIC CHEMISTRY MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR RELEVANT APPARATUS TRANSPORTING TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Beschreibung
Zusammenfassung:	Weakly basic anion exchangers of the poly(meth)acrylamide type, which have been prepared by aminolysis of poly(meth)acrylonitrile or poly(meth)acrylate with polyamines of a defined composition, have an improved uptake capacity for sulphate ions and are suitable for selective removal of sulphate ions from aqueous liquids, especially from sodium chloride brines and from waste waters.