Sulfonic acid type strongly acidic cation exchange resin and preparation method thereof

A strong acid cation, exchange resin technology, applied in cation exchange, ion exchange, chemical instruments and methods, etc., can solve the problems of waste of water resources, production safety, waste acid discharge and pollute the environment, etc., and achieves high spatial freedom and swelling degree. big effect

Active Publication Date: 2017-04-26
SHANGHAI RESIN FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a new type of strongly acidic cation exchange resin and its environment-friendly preparation method in order to solve the above problems such as waste acid discharge polluting the environment, waste of water resources and production safety.

Method used

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  • Sulfonic acid type strongly acidic cation exchange resin and preparation method thereof
  • Sulfonic acid type strongly acidic cation exchange resin and preparation method thereof
  • Sulfonic acid type strongly acidic cation exchange resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Preparation of novel strongly acidic cation exchange resin:

[0031] (1) Configuration of water phase raw materials: put 0.25g of gelatin into a four-necked flask filled with 60.0g of deionized water, stir and heat up to 45°C, add 0.025g of hydroxymethyl cellulose after the gelatin is dissolved, and use 5% The pH of the aqueous phase was adjusted to 10 with aqueous NaOH and 5% aqueous boric acid.

[0032] (2) Preparation of oil phase raw material: 0.02g dibenzoyl peroxide is added in 14.0 glycidyl methacrylate (net content 99%) and 7.5 divinylbenzene (net content 80%) mixed solution, with 120 Turn / min and stir for 30min.

[0033] (3) Add the oil phase prepared in the above step (2) to the water phase raw material in step (1) and stir at a speed of 1°C / min to raise the temperature to 80°C.

[0034] (4) Insulate at 80°C for 3h, then raise the temperature to 95°C for 5h. After the heat preservation is over, cool the material, filter out the liquid, wash the solid with 8...

Embodiment 2

[0038] Preparation of novel strongly acidic cation exchange resin:

[0039] (1) Configuration of water phase raw materials: put 0.25g of gelatin into a four-necked flask filled with 60.0g of deionized water, stir and heat up to 45°C, add 0.025g of hydroxymethyl cellulose after the gelatin is dissolved, and use 5% The pH of the aqueous phase was adjusted to 12 with aqueous NaOH and 5% aqueous boric acid.

[0040] (2) Preparation of oil phase raw materials: 0.02g of azobisisobutyronitrile is added to 16.1g of glycidyl methacrylate (99%) and 5.0g of divinylbenzene (80%) mixed solution, at 120 rpm min and stir for 20 min.

[0041] (3) Add the oil phase prepared in the above step (2) to the water phase raw material in step (1) and stir at a speed of 2°C / min to raise the temperature to 80°C.

[0042] (4) Keep the temperature at 80° C. for 4 hours, then raise the temperature to 95° C. and keep it for 3 hours. After the heat preservation is over, cool the material, filter off the l...

Embodiment 3

[0045] Preparation of novel strongly acidic cation exchange resin:

[0046] (1) Configuration of water phase raw materials: put 0.25g of gelatin into a four-necked flask filled with 60.0g of deionized water, stir and heat up to 45°C, add 0.025g of hydroxymethyl cellulose after the gelatin is dissolved, and use 5% The pH of the aqueous phase was adjusted to 11 with aqueous NaOH and 5% aqueous boric acid.

[0047] (2) Preparation of oil phase raw materials: 0.02g dibenzoyl peroxide is added in 17.2g glycidyl methacrylate (99%) and 3.8g divinylbenzene (80%) mixed solution, with 120 rpm min stirring for 25 min.

[0048] (3) Add the oil phase prepared in the above step (2) to the water phase raw material in step (1) and stir at a speed of 2°C / min to raise the temperature to 80°C.

[0049] (4) Insulate at 80°C for 4h, then raise the temperature to 95°C for 2h. After the heat preservation is over, cool the material, filter out the liquid, wash the solid with 80°C hot water for 3 t...

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Abstract

The invention relates to a sulfonic acid type strong-acidity cation exchange resin. Random crosslinking copolymer beads of acrylic glycidol ester and divinylbenzene are used as a framework, an amino sulfonic group introduced by an epoxy group of a glycidol part in a copolymer through an open loop is used as a functional group, and the quality ratio of a construction unit of the acrylic glycidol ester to a construction unit of the divinylbenzene in the copolymer is 70:30-93:7. In the preparation process of the resin, a concentrated sulfuric acid, a fuming sulfuric acid and a chlorosulfonic acid, with strong oxidizing properties are not used as a sulfonating reagent, and the problem of environmental pollution caused by the discharge of a great deal of a waste acid and the problem of production safety in the traditional technology are solved. The sulfonic acid type strong-acidity cation exchange resin is spheroidal particles of which the particle size range is 0.5-1.2 mm, the content of the sulfonic group is 17.6-20.27wt%, and the ion exchange capacity is 2.20-2.53 meq / g.

Description

technical field [0001] The invention relates to a novel sulfonic acid type strongly acidic cation exchange resin and a preparation method thereof. Background technique [0002] Ion exchange resin is a kind of functional polymer compound with a network structure of functional groups. It is an insoluble three-dimensional network skeleton, functional groups connected to the skeleton and functional groups with oppositely charged exchangeable ions. It consists of three parts. Widely used in water treatment, food industry, synthetic chemistry and petrochemical industry and other aspects. [0003] Cross-linked polystyrene-divinylbenzenesulfonic acid cation exchange resin is the most widely used variety of ion exchange resins. Sulfonic acid-based cation exchange resin is made by introducing sulfonic acid groups on the benzene ring of cross-linked styrene through the sulfonation of strong oxidants such as concentrated sulfuric acid, chlorosulfonic acid, sulfur trioxide and oleum. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J39/19C08F220/32C08F212/36C08F8/36
Inventor 季麟仲崇哲吴蓁姚慧敏庄振东
Owner SHANGHAI RESIN FACTORY
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