Method for preparing cation exchange resin from high-molecular polymer

A technology of ion exchange resin and bulk polymer, which is applied in the field of cation exchange resin, can solve the problems of high difficulty in recycling and reuse, and achieve the effect of convenient operation, strong pertinence, and high economy

Inactive Publication Date: 2015-09-30
安徽华美高分子材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cross-linked three-dimensional network structure has good mechanical properties and heat resistance, but its non-melting and insoluble characteristics make it very difficult to recycle after disposal

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A method for preparing a cationic exchange resin from an epoxy resin-based waste circuit board, comprising the following steps:

[0014] (1) Heat the water bath to 80°C.

[0015] (2) Weigh 10g of waste circuit board powder, pour them into a 500ml three-necked flask, and fix the three-necked flask and stirrer on the iron stand.

[0016] (3) Measure 50g of concentrated sulfuric acid with a graduated cylinder, pour it into a three-necked flask, plug it with a hollow plug, put the three-necked flask into a water bath, stir at a medium speed, and react for 4 hours.

[0017] (4) After the reaction, close the water bath, take out the three-necked flask, transfer the reactants into a 500ml beaker, wash the three-necked flask with deionized water three times, and pour the washed liquid into the three-necked flask.

[0018] (5) The reactant was filtered with a sand core funnel, washed with deionized water until neutral, and the product was collected and placed in an oven at ...

Embodiment 2

[0020] A kind of method that waste and old phenolic resin prepares cationic exchange resin, comprises the following steps:

[0021] (1) Heat the water bath to 80°C.

[0022] (2) Weigh 10g of waste phenolic resin powder, pour them into a 500ml three-necked flask, and fix the three-necked flask and stirrer on the iron stand.

[0023] (3) Measure 50g of concentrated sulfuric acid with a graduated cylinder, pour it into a three-necked flask, plug it with a hollow plug, put the three-necked flask into a water bath, stir at a medium speed, and react for 4 hours.

[0024] (4) After the reaction, close the water bath, take out the three-necked flask, transfer the reactants into a 500ml beaker, wash the three-necked flask with deionized water three times, and pour the washed liquid into the three-necked flask.

[0025] (5) The reactant was filtered with a sand core funnel, washed with deionized water until neutral, and the product was collected and placed in an oven at 60°C for 24...

Embodiment 3

[0027] A kind of epoxy resin prepares the method for cationic exchange resin, comprises the following steps:

[0028] (1) Weigh 50g of bisphenol A epoxy resin and 6g of isophorone diamine, and stir well. Cured at 80°C for 12h.

[0029] (2) Pulverize the product obtained in (1) with a pulverizer, and screen the pulverized product with a 25-mesh and 40-mesh sieve to obtain particles between 25 and 40 mesh, and put them in an oven to dry.

[0030] (3) Raise the temperature of the water bath to 80°C.

[0031] (4) Weigh 10g of the product obtained in (2), pour it into a 500ml three-necked flask, and fix the three-necked flask and the stirrer on the iron stand.

[0032] (5) Measure 50g of concentrated sulfuric acid with a graduated cylinder, pour it into a three-necked flask, plug it with a hollow plug, put the three-necked flask into a water bath, stir at a medium speed, and react for 4 hours.

[0033] (6) After the reaction, close the water bath, take out the three-necked f...

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PUM

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Abstract

The invention discloses a method for preparing cation exchange resin from a high-molecular polymer. The method utilizes concentrated sulfuric acid, fuming sulphuric acid, chlorosulfonic acid and sulfur trioxide as sulfonation reagents. The products have performances satisfying saled ion exchange resin performance requirements. A part of the products have performances exceeding national first-grade product standards. The method has simple processes, can be operated conveniently and can prepare the cation exchange resin with an exchange rate the same to that of the saled 723-type cation exchange resin.

Description

technical field [0001] The invention relates to a method for preparing a cationic exchange resin from a high molecular weight polymer. Background technique [0002] Thermosetting epoxy resins and phenolic resins are macromolecular polymers, and their common feature is that the molecular structure is a cross-linked three-dimensional network structure. The cross-linked three-dimensional network structure has good mechanical properties and heat resistance, but its non-melting and insoluble properties make it very difficult to recycle after disposal. If it can be recycled reasonably, it will not only be beneficial to environmental protection, but also promote the sustainable development of society. Contents of the invention [0003] The object of the present invention is to provide a kind of method that prepares cationic exchange resin with macromolecule type polymer. [0004] To achieve the above object, the present invention adopts the following technical s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G59/14C08G8/28
Inventor 不公告发明人
Owner 安徽华美高分子材料科技有限公司
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