Caesium adsorbing material based on sodium modified zeolite and preparation method thereof

An adsorption material, sodium modification technology, applied in chemical instruments and methods, adsorption water/sewage treatment, other chemical processes, etc., can solve problems such as lack of adsorption materials

Inactive Publication Date: 2018-03-30
北京源清益壤环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is still a lack of cheap and efficient adsorbent materials for removing cesium in polluted water bodies. Therefore, the development of cesium adsorbent materials based on sodium-modified zeolites is of great significance for the treatment of heavy metal pollution in polluted water bodies.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] (1) Add 22.98g of zeolite to 250mL of nitric acid solution with a concentration of 10% by mass, stir for 50 minutes under the condition of 1000r / min, filter and remove the liquid, wash with 500mL of deionized water and place in a drying oven at 105°C 35 minutes, obtain substance A01;

[0055] (2) Substance A01 was added to 450 mL of NaCl solution with a molar concentration of 1.28 mol / L, and shaken in a shaker at a temperature of 35° C. for 1.5 hours to obtain a mixed solution D;

[0056] (3) Add 60 mL of ammonia water with a mass concentration of 20% to the mixed solution D, then add 5.6 g of dicumyl diphenylamine, and stir for 4 hours at 1000 r / min to obtain the mixed solution E;

[0057] (4) Centrifuge the mixture E at a speed of 7000 rpm for 5 minutes, remove the supernatant in the upper layer, and dry the solid substance in the lower layer at 60° C. for 24 hours to obtain substance A02;

[0058] (5) 5.3 grams of FeCl 3 ·6H 2 O and 4.9 g FeCl 2 4H 2 O was added...

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PUM

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Abstract

The invention discloses a caesium adsorbing material based on sodium modified zeolite. The caesium adsorbing material is prepared by the following steps of cleaning zeolite, and modifying by a mixed liquor which is prepared from NaCl (sodium chloride), ammonium hydroxide, diisopropylbenzene diphenylamine, FeCl3 (ferric trichloride) and FeCl2 (ferrous chloride), so as to prepare a matter A04; modifying the matter A04 by a mixed liquor which is prepared from 2-bromomethyl thiophene, 4-methyl-5-aminopyrimidine, 6-propoxypyridazine-3-amine and 2-amino-6-chloro-3-formylchromone, so as to prepare asubstance A; modifying the substance A by a mixed liquor which is prepared from ZrCl4 (zirconium tetrachloride), InCl3 (indium chloride), Zn(NO3)2 (zinc nitrate) and Sr(NO3)2 (strontium nitrate), so as to prepare a substance B; modifying the substance B by a mixed liquor which is prepared from 3-amino-4-cyanopyridine, diphenylcarbazide and 2-methyl-3-(methylmercapto) pyrazine, so as to prepare a substance C; modifying the substance C by a mixed liquor which is prepared from 2-chloro-3-aminopyrazine, 3-amino-5-bromine-2-fluoropyrimidine and 3-amino-6-(propylthio)pyridazine, so as to obtain thecaesium adsorbing material based on the sodium modified zeolite.

Description

technical field [0001] The invention belongs to the technical field of heavy metal pollution control in polluted water, and in particular relates to a cesium adsorption material based on sodium-modified zeolite and a preparation method thereof. Background technique [0002] Due to the characteristics of high toxicity, refractory, and persistence of heavy metals, heavy metal pollution in water bodies has become a serious and common environmental problem, which has attracted extensive attention from domestic and foreign scholars. Heavy metals can interact with proteins in the human body to inactivate them, and they can also accumulate in certain organs of the human body. If they exceed the limit that the human body can bear, they will affect the lungs, kidneys, liver and other important organs through blood circulation. , can cause poisoning and other diseases, and is extremely harmful to the human body. Therefore, it is of great social, economic and environmental significanc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/22B01J20/30C02F1/28C02F101/20
CPCB01J20/16B01J20/0211B01J20/0229B01J20/0244B01J20/0248B01J20/0288B01J20/0296B01J20/04B01J20/046B01J20/22B01J2220/46B01J2220/4806B01J2220/4812C02F1/281C02F1/285C02F2101/20
Inventor 不公告发明人
Owner 北京源清益壤环保科技有限公司
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