Modified double resin ion exchanger, manufacturing method and usage thereof

A technology of ion exchangers and ion exchange resins, applied in the field of ion exchangers, can solve the problems of waste sulfuric acid reuse restrictions, control technology, high energy consumption, high expenditure, and inability to exchange ions, etc. The preparation method is simple and easy to operate, The effect of long service life and not easy to break

Inactive Publication Date: 2013-02-20
HUZHOU XINGE MEMBRANE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantage is that the reuse of waste sulfuric acid produced in sulfonation is very limited; the second disadvantage is the isothermal distribution, such as at 100 ° C for 5 hours, it requires high expenditure on control technology and high energy consumption; the third The disadvantage is that the proportion of broken beads in the prepared cation exchanger product is 5-10%

Method used

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  • Modified double resin ion exchanger, manufacturing method and usage thereof
  • Modified double resin ion exchanger, manufacturing method and usage thereof
  • Modified double resin ion exchanger, manufacturing method and usage thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] H-type styrene resin is 001×4 strongly acidic styrene hydrogen ion exchange resin produced by Jiangsu Linhai Resin Company; H-type acrylic resin is D113 macroporous weakly acidic acrylic hydrogen ion exchange resin produced by Jiangsu Linhai Resin Company resin.

[0056] Prepare aluminum sulfate solutions with a mass percentage concentration of 8% and 4% by conventional methods.

[0057] Prepare the modified double resin ion exchanger as follows:

[0058] A. Preparation of gel strong acid Al-type ion exchange resin: Fill the exchange column with 50ml of 001×4 strong acidic styrene-based hydrogen ion exchange resin at normal temperature and pressure, and inject 300ml of sulfuric acid with a mass percentage concentration of 8%. Aluminum solution, soaked for 2h, then washed with deionized water to prepare 50.2ml gel strong acid Al-type ion exchange resin, for subsequent use;

[0059] B. Preparation of macroporous weakly acidic Al-type ion exchange resin: Fill 50ml of D11...

Embodiment 2

[0070] The modified dual-resin ion exchanger prepared in Example 1 was used to carry out the copper removal ion exchange experiment, and the experimental results are shown in Table 2. According to calculation, the copper removal capacity of the modified double resin ion exchanger in this embodiment is 6.21 mg / l when converted to sodium resin.

Embodiment 3

[0076] H-type styrene resin is 001X7 strongly acidic styrene-based hydrogen ion exchange resin produced by Jiangsu Sekesaisi Resin Co., Ltd.; H-type acrylic resin is HD-2 macroporous resin produced by Shanghai Huazhen Technology Co., Ltd. Weakly acidic acrylic hydrogen ion exchange resin.

[0077] Prepare aluminum pyrosulfate solutions with mass percentage concentrations of 6% and 3% according to conventional methods.

[0078] Prepare the modified double resin ion exchanger as follows:

[0079] A. Preparation of gel strong acid Al-type ion exchange resin: Fill the exchange column with 50ml of 001X7 strong acid styrene-based hydrogen ion exchange resin at normal temperature and pressure, and inject 300ml of aluminum sulfate solution with a mass percentage concentration of 6%. solution, soaked for 1h, then cleaned with deionized water, and set aside;

[0080] B. Preparation of macroporous weakly acidic Al-type ion exchange resin: Fill 50ml of HD-2 type macroporous weakly acidi...

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Abstract

The invention relates to an ion exchanger capable of absorbing components or selectively separating components from liquid mixture, in particular to a modified ion exchanger. The modified double resin ion exchanger comprises gel strong acid Al-type ion exchange resin and macroporous weak acid Al-type ion exchange resin. The manufacturing method comprises the following steps in sequence: preparing the gel strong acid Al-type ion exchange resin, preparing the macroporous weak acid Al-type ion exchange resin and mixing the gel strong acid Al-type ion exchange resin and the macroporous weak acid Al-type ion exchange resin according to the ratio. The modified double resin ion exchanger can be used for eliminating heavy metal ions, fluoride ions and the like and is mainly used for eliminating the fluoride ions, particularly the fluoride ions in photovoltaic waste water.

Description

[0001] Modified double resin ion exchanger, preparation method and use thereof technical field [0002] The present invention relates to an ion exchanger capable of adsorbing or selectively separating components from a liquid mixture, in particular to a modified ion exchanger. Background technique [0003] Ion exchange resin is made by organic synthesis method. The commonly used raw material is styrene or acrylic acid (ester), which is made by polymerizing to form a skeleton with a three-dimensional network structure, and then introducing different types of chemically active groups (usually acidic or basic groups) into the skeleton. . [0004] The ion exchange resin contains one (or several) chemically active groups, which are exchange functional groups, which can dissociate certain cations (such as H or Na) or anions (such as OH- or Cl-) in aqueous solution, and at the same time Adsorb other cations or anions that originally existed in the solution, that is, the ions in t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J39/18C02F1/42C02F101/14
Inventor 周文雄
Owner HUZHOU XINGE MEMBRANE TECH
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