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Production method of calcium lignosulfonate compound polystyrene multi-component copolymerized cation exchange resin

A calcium lignosulfonate and cation exchange technology, which is applied in the direction of cation exchange materials, can solve the problems of inability to comprehensively improve uniformity, thermal stability, chemical stability, etc., limited application range, and poor mechanical strength. Achieve the effect of improving heat resistance, wide application range and high mechanical strength

Inactive Publication Date: 2016-11-16
ANHUI WANDONG CHEM
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, this type of resin has low thermal stability and is greatly affected by the use temperature, which limits its application range. It also has poor chemical stability, poor mechanical strength, and especially poor compression resistance, which also affects its service life. , so it is necessary to improve its comprehensive performance
CN201310172597 introduces the copolymerization of long-chain flexible monomer octadecyl methacrylate and styrene, thereby improving the compressive strength of ion exchange resin microspheres, but this method can only improve the compressive performance of polystyrene resin, and cannot comprehensively improve Its uniformity, thermal stability, chemical stability and other comprehensive properties are difficult to meet the current demand for higher quality ion exchange resins, and its application range is limited

Method used

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Embodiment Construction

[0013] A kind of production method of calcium lignosulfonate composite polystyrene multi-component copolymerized cation exchange resin, the method comprises the following specific steps:

[0014] (1) Preparation of the water phase, which is prepared from the following raw materials in parts by weight: polyethylene glycol 0.5, polysorbate-800.1, sodium hexametaphosphate 0.3, calcium lignosulfonate 2, triethanolamine 0.5, carrageenan 0.1, water 80, the preparation process of the water phase is to first add polysorbate-80 and calcium lignosulfonate to water and stir for 10 minutes, then add the rest of the raw materials and stir to dissolve completely to obtain the water phase;

[0015] (2) Preparation of the oil phase, the oil phase is prepared from the following raw materials in parts by weight: styrene 40, divinylbenzene 5, benzoyl peroxide 0.5, methyl methacrylate 3, vinyl trimethoxy Base silane 3, liquid paraffin 2, sodium petroleum sulfonate 0.5, the preparation process of ...

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Abstract

The invention discloses a production method of calcium lignosulfonate compound polystyrene multi-component copolymerized cation exchange resin. The method specifically comprises the following steps: preparing an aqueous phase and an oil phase, preparing composite resin microspheres, and synthesizing the ion exchange resin, wherein the resin microsphere skeleton is prepared by crosslinking styrene, methyl methacrylate and vinyl trimethoxy silane. The polystyrene multi-component copolymerized cation exchange resin not only has good high-temperature resistance and chemical resistance stability, and is wide in application range, but also is high in mechanical strength, and good in pore diameter uniformness, the ion exchange capacity is high, the polystyrene multi-component copolymerized cation exchange resin is especially good in heavy metal pollutant adsorption performance, and applicable to treatment of heavy metal waste water.

Description

technical field [0001] The invention relates to a production method of an ion exchange resin, in particular to a production method of a calcium lignosulfonate composite polystyrene multi-component copolymerized cation exchange resin. Background technique [0002] Ion exchange resin is an important class of adsorption and separation materials. It is a porous spongy solid polymer substance in structure. Each resin particle is composed of a cross-linked network skeleton with a three-dimensional three-dimensional structure, and many movable particles are connected to the skeleton. functional basis. It is insoluble in general acid-base solutions and organic solvents, and can be used in various fields such as water treatment, food, pharmaceutical, petrochemical and environmental protection, and is playing an increasingly important role in modern industry. [0003] At present, the most widely used ion exchange resin is polystyrene-based resin, which has the advantages of easy-to-o...

Claims

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Application Information

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IPC IPC(8): C08F212/08C08F212/36C08F220/14C08F230/08C08F8/36B01J39/20
CPCB01J39/20C08F8/36C08F212/08C08F212/36C08F220/14C08F230/08
Inventor 姚能平王玉兰梅德华陈建国林伟王海宽
Owner ANHUI WANDONG CHEM