MANUFACTURE OF ANION EXCHANGE RESIN COMPRISING POLY(METH)ACRYLAMIDE
According to the process of the invention for preparing anion exchange resins of the poly(meth)acrylamide type by aminolysis of bead polymers consisting of crosslinked poly(meth)acrylates with excess polyamine, subsequent separation of the anion exchange resins from the liquid phase containing the u...
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| creator | HARORUTO HERAA FURIIDORITSUHI BERUNAA AKUSERU INGENDOO ARUFUREETO MITSUCHIYUKAA |
| description | According to the process of the invention for preparing anion exchange resins of the poly(meth)acrylamide type by aminolysis of bead polymers consisting of crosslinked poly(meth)acrylates with excess polyamine, subsequent separation of the anion exchange resins from the liquid phase containing the unconverted polyamine, washing the anion exchangers free of amine with water and recovery of the polyamines from the wash waters, the liquid phase containing the unconverted polyamine and the polyamine-containing wash waters are mixed directly with the bead polymer, which is to be aminolysed, of crosslinked poly(meth)acrylate, the quantity of fresh polyamine required to set the desired polyamine excess is added to the mixture, the mixture thus obtained is dehydrated by distillation until its water content has fallen to a value of < 7% by weight and the mixture remaining after this dehydration by distillation is aminolysed in the usual manner. |
| format | Patent |
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| subjects | CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS BASED THEREON 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 |
| title | MANUFACTURE OF ANION EXCHANGE RESIN COMPRISING POLY(METH)ACRYLAMIDE |
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