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Preparation method for macroporous weak-base anion resin

An anion resin and porogen technology, applied in the field of polymer chemistry, can solve the problems affecting the production and application of macroporous weak base anion resin, carcinogenesis of workers and surrounding people, and failure of normal production, so as to enhance the anti-pollution ability and reduce the Production cost, effect of extending service life

Active Publication Date: 2014-06-11
蚌埠市天星树脂有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of product has high value-added benefits, but it will produce a large amount of toxic gas during the production process, which will easily cause cancer and affect the health of workers and surrounding people. Therefore, many enterprises cannot produce normally or hide in mountainous areas to produce by frequent replacement of workers. Therefore Greatly affected the production and application of macroporous weak base anion resin

Method used

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  • Preparation method for macroporous weak-base anion resin
  • Preparation method for macroporous weak-base anion resin
  • Preparation method for macroporous weak-base anion resin

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0023] A kind of preparation method of macroporous weak base anion resin is characterized in that: its preparation method comprises the steps:

[0024] Step 1: Polymerization: a. First, put 10kg of styrene, 1.4kg of TXB, 4kg of initiator isobutanol and 0.15kg of porogen TXA into the stock preparation tank and stir for 30 minutes for subsequent use; Put vinyl alcohol and 31.1kg of water into the reactor, raise the temperature to 50°C, and stir for 1 hour;

[0025] b. Add the stirred raw materials in the preparation kettle to the reaction kettle, raise the temperature to 80°C, keep it warm for 2 hours, then raise the temperature to 85°C, and keep it warm for four hours; then raise the temperature to 98°C, keep it warm for 6 hours Cool down after 1 hour, the temperature is lowered to 40°C, and white balls are obtained;

[0026] c. Put the white ball in the reaction kettle into the washing kettle to clean until the water is clear;

[0027] d. Send the washed white balls into the...

Embodiment 2-5

[0031] Except the following table parameter, other is all with embodiment 1, and concrete parameter is as follows:

[0032]

[0033] The performance index of the macroporous weak base anion resin prepared by embodiment 1-5 is as follows:

[0034]

[0035] For the detection method of the performance index, refer to the national standard HG / T2165-1997

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Abstract

A preparation method for macroporous weak-base anion resin belongs to the field of high polymer chemistry, and comprises the following steps: the polymerization reaction stage: preparing materials, stirring, heating and reacting to obtain white spheres; the chlorination reaction stage: placing the white spheres into a chlorination reaction kettle, adding chlorinated polyether , zinc chloride and the like, and reacting to obtain chlorinated spheres; the amination reaction stage: performing amination reaction between the chlorinated spheres and a dimethylamine aqueous solution to obtain the macroporous weak-base anion resin. According to the macroporous weak-base anion resin prepared through the method disclosed by the invention, the mechanical strength of the resin is improved, the service life of the resin is prolonged, the specific surface area is larger, the pore diameter is uniform, the exchange capacity and the anti-pollution capacity of the resin are improved, the production cost is lowered, and the economic efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of polymer chemistry, in particular to a preparation method of a macroporous weak base anion resin. Background technique [0002] Macroporous weak base anion resins are widely used in hard water softening, desalinated water, pure water preparation, hydrometallurgy, rare element separation, pharmaceuticals, sugar industry, amino acid adsorption and other fields. D301 is widely used in the market at present. This kind of product has high value-added benefits, but it will produce a large amount of toxic gas during the production process, which will easily cause cancer and affect the health of workers and surrounding people. Therefore, many enterprises cannot produce normally or hide in mountainous areas to produce by frequent replacement of workers. Therefore Greatly affected the production and application of macroporous weak base anion resin. Contents of the invention [0003] The technical problem to be s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F12/08C08F8/32C08F8/20C08J9/28B01J41/14
Inventor 杨奇王行
Owner 蚌埠市天星树脂有限责任公司