Gel-type weakly acidic acrylic cation exchange resin

• Main Authors: JI XIA, ZHANG XUEFENG, RUAN SHENGRU, LYU JIAPING
• Format: Patent
• Language: Chinese; English
• Published: 01.01.2021
• 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

The invention provides a novel gel-type weakly acidic acrylic cation exchange resin, and relates to the technical field of ion exchange resin, in particular to a preparation method of the gel-type weakly acidic acrylic cation exchange resin. The invention solves the problems that when toluene is used as a pore-foaming agent in the production process of macroporous weakly acidic acrylic cation resin in the prior art, toxicity exists, the risk coefficient in the production process is high, the synthesized resin is easy to contain toluene factors, and food safety problems is easy to cause when the resin is applied to the field of food processing. The preparation method comprises a water phase preparation step, an organic phase preparation step and a polymerization step, the water phase and the organic phase are mixed and react in the polymerization step to obtain a resin semi-finished product, then the resin preparation step is carried out, and the required acrylic cation exchange resin is obtained through a ser