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Surface active agent modification zeolites, method of preparing thereof and usage

A technology of surfactant and modified zeolite, which is applied in the fields of zeolite and its preparation, preparation of modified zeolite, and water treatment materials, can solve the problems of the factors of adsorption effect, optimal adsorption conditions and few researches on regeneration methods, etc. The effect of reducing additional facilities, low cost, and efficient removal

Inactive Publication Date: 2009-10-07
曾玉彬 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, related patents mainly focus on the adsorption of zeolite to heavy metal cations or the adsorption of hexadecyltrimethylammonium bromide (HDTMA) modified zeolite to non-ionic organic compounds, but for hexadecylpyridinium bromide (HDPB) modified zeolite adsorption of hexavalent chromium patent has not been reported
Simultaneously, also there are deficiencies in previous inventions: in determining the factors (such as pH value, pollutant initial concentration, modified zeolite and polluted water action time, modified zeolite consumption etc.) that affect adsorption effect, optimum adsorption condition and Little research has been done on regeneration methods

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) Preparation of surfactant HDPB modified chabazite. A certain chabazite was screened, and an appropriate amount of chabazite with a particle size of 0.10mm was weighed and placed in a reactor, washed with deionized water, and a mixed solution of 1.0mol / L hydrochloric acid solution and 1.0mol / L citric acid was added, and the mixed acid The volume ratio of the solution is 1:9, and the mass volume ratio of chabazite to the mixed acid solution is 1:5; pour out the supernatant after boiling for 6 hours; add 2.0mol / L ammonium chloride solution after washing with deionized water to continue Boil for 6 hours, wherein the mass volume ratio of chabazite to ammonium chloride solution is 1:4 (g / ml); discard the supernatant and wash with deionized water, then wash with 0.1mol / L AgNO 3 No chlorine ions were detected, dried at 60°C; then placed in a 500°C horse-boiling furnace for calcination for 24 hours, taken out and cooled for later use. Weigh an appropriate amount of activate...

Embodiment 2

[0032] (1) Preparation of surfactant HDPB modified chabazite. A certain chabazite was screened, and an appropriate amount of chabazite with a particle size of 0.15mm was weighed and placed in a reactor, washed with deionized water, and then a mixed solution of 1.5mol / L hydrochloric acid solution and 1.5mol / L citric acid was added, and the mixed acid The volume ratio of the solution is 1:10, and the mass volume ratio of chabazite to the mixed acid solution is 1:5; pour out the supernatant after boiling for 6 hours; add 2.0mol / L ammonium chloride solution after washing with deionized water to continue Boil for 6 hours, wherein the mass volume ratio of chabazite to ammonium chloride solution is 1:4 (g / ml); discard the supernatant and wash with deionized water, then wash with 0.1mol / L AgNO 3 No chlorine ions were detected, dried at 60°C; then placed in a 500°C horse-boiling furnace for calcination for 24 hours, taken out and cooled for later use. Weigh an appropriate amount of ac...

Embodiment 3

[0036] (1) Preparation of surfactant HDPB modified chabazite. A certain chabazite was screened, and an appropriate amount of chabazite with a particle size of 0.05 mm was weighed and placed in a reactor, washed with deionized water, and then a mixed solution of 0.5 mol / L hydrochloric acid solution and 0.5 mol / L citric acid was added, and the mixed acid The volume ratio of the solution is 1:8, and the mass volume ratio of chabazite to the mixed acid solution is 1:3; pour out the supernatant after boiling for 6 hours; add 2.0mol / L ammonium chloride solution after washing with deionized water to continue Boil for 6 hours, wherein the mass volume ratio of chabazite to ammonium chloride solution is 1:4 (g / ml); discard the supernatant and wash with deionized water, then wash with 0.1mol / L AgNO 3 No chlorine ions were detected, dried at 60°C; then placed in a 500°C horse-boiling furnace for calcination for 24 hours, taken out and cooled for later use. Weigh an appropriate amount of ...

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Abstract

The present invention relates to a zeolites and a method for preparing thereof, in particularly a method for preparing a modification zeolite which can treat raw water and groundwater pollutated by chromates, and using as water processing material. The method belongs to the environmental-protecting technical field. The method includes steps as follows: firstly, processing activating to the natural zeolite by using a mixing solution of alcaine and citric acid for obtaining the activating zeolite; then processing modification to the zeolite by using surfactants cetyl bromination pyridine (HDPB) for obtaining the surfactants modification zeolite. The surfactants modification zeolite can be used for treating various raw water and ground water with substandard water quality which can remove chromates tainting substance with high efficient.

Description

technical field [0001] The invention relates to a zeolite and a preparation method thereof, in particular to a method for preparing a modified zeolite which can be used for treating raw water and groundwater polluted by chromate and as a water treatment material. It belongs to the field of environmental protection technology. Background technique [0002] In recent years, the pollution of raw water and groundwater has become one of the worldwide environmental problems. With the development of industries in various countries, the harm of heavy metals to human health and ecological environment is becoming more and more serious, among which the harm of heavy metal chromium is the most prominent. Chromium pollution mainly comes from industrial production such as electroplating, metallurgy, chemical industry, matches, pharmaceuticals, photography, and tanning. The extensive use of chromium-containing compounds has seriously polluted surface water and shallow groundwater in many ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B39/02B01J20/16B01J20/34C02F1/28C02F1/42
Inventor 曾玉彬朴埈範
Owner 曾玉彬
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