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Preparation method of heavy metal ion absorption resin

A heavy metal ion, adsorption resin technology, applied in separation methods, chemical instruments and methods, adsorption water/sewage treatment and other directions, can solve the problems of few repeated use, poor selectivity, small adsorption capacity, etc. The effect of small drop and small adsorption capacity

Active Publication Date: 2013-04-03
皖东高科(池州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, for the adsorption of metal ions such as lead and other heavy metal ions in the solution, most of the adsorption resins have more or less disadvantages: small adsorption capacity, or less repeated use times, or poor selectivity, or high cost

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] A kind of preparation method of heavy metal ion adsorption resin is characterized in that comprising the following steps:

[0032] Prepare the water phase according to the following weight (kg) ratio, and raise the temperature to 45°C;

[0033] Deionized water 400

[0034] Polyvinyl alcohol 8

[0035] Hydroxyethyl Cellulose 50

[0036] Diethylenetriamine 15

[0037] Nano Carbon 3

[0038] Nano Attapulgite 5

[0039] Sodium sulfate 40

[0040] Sodium tripolyphosphate 20

[0041] Potassium persulfate 1

[0042] Use sulfuric acid to adjust the pH of the water phase to neutral

[0043] Weigh the raw materials with the following weight (kg), mix them and add them to the water phase, turn on the machine and stir, and adjust the speed according to the particle size;

[0044] Styrene 65

[0045] Divinylbenzene 330

[0046] Toluene 235

[0047] Acrylonitrile 50

[0048] Dichloromethane 30

[0049] Ferrocene 10

[0050] Azobisisobutyronitrile 1

[0051] Rais...

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PUM

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Abstract

The invention discloses a preparation method of a heavy metal ion absorption resin. Based on the traditional production process, a styrenic synthetic resin is adopted as the framework for complexing adsorbate. According to the invention, when simulated sewage with an initial Pb2+ concentration of 0.75 mmol / L and pH of 4.0 is treated, the resin use amount is 0.20g / L, and after static absorption for 12h at 30 DEG C, the Pb2+ ion absorption quantity of the resin reaches 2.60-2.73 mmol / g, the Pb2+ ion concentration of the residue solution is 0.0020-0.0030 mol / L, the removal rate is over 98%, and the effect is relatively good. After elution and regeneration with 0.15 mol / L diluted hydrochloric acid are carried out for three times, the reduction of the Pb2+ ion absorption quantity of the granule resin is relatively small, so the absorbent resin has relatively good repeated use performance.

Description

technical field [0001] The invention belongs to a preparation method of resin, in particular to a preparation method of heavy metal ion adsorption resin. Background technique [0002] In recent years, with the rapid development of my country's economy, a large amount of waste water from factories such as metallurgy, batteries, pigments, and rubber has been discharged, and the accumulation of Pb2+ in soil and water sources is increasing, which has brought serious pollution. At present, for the adsorption of metal ions such as lead and other heavy metal ions in the solution, most of the adsorption resins have more or less disadvantages: small adsorption capacity, or fewer times of repeated use, or poor selectivity, or high cost. Contents of the invention [0003] The purpose of the present invention is to provide a preparation method of a heavy metal ion adsorption resin. The present invention improves the dispersibility and suspension through the improvement of the water ph...

Claims

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Application Information

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IPC IPC(8): B01J20/26B01J20/30C02F1/28C02F1/62B01D15/00
Inventor 姚能平梅德华陈建国林伟王海宽王玉兰
Owner 皖东高科(池州)有限公司