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Ozone heterogeneous oxidation solid catalyst preparation method

A heterogeneous oxidation, solid catalyst technology, applied in catalyst activation/preparation, physical/chemical process catalyst, metal/metal oxide/metal hydroxide catalyst, etc., can solve the performance of catalysts such as adsorption, poor anti-toxicity Influence, catalyst loses catalytic activity, easily loses catalytic activity and other problems, achieves good environmental and economic benefits, enhances anti-toxicity, and inhibits melting and precipitation.

Inactive Publication Date: 2017-08-18
SICHUAN NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the wide variety of pollutants and the complex chemical composition of wastewater, it will have adverse effects on the performance of the catalyst, such as adsorption and anti-toxicity, and the catalyst will easily lose its catalytic activity.
At present, the main problems of the preparation method of ozone heterogeneous oxidation solid catalyst are small adsorption capacity, low adsorption selectivity, poor toxicity resistance of the catalyst, and easy loss of catalytic activity; development and use of multi-component porous carriers to increase the adsorption of the catalyst Capacity, enhanced adsorption selectivity, using rare earth metals, transition metals and noble metals to form multi-metal catalytic active centers to improve catalyst anti-toxicity and catalytic activity The preparation method of ozone heterogeneous oxidation solid catalyst has greater environmental benefits and higher Practical value

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0007] Embodiment 1:1.35g lithium hypochlorite, 1.65g bis(acetylacetonate) beryllium, 140ml deionized water, join volume and be that in the sealable reactor of 500ml, stir and mix evenly, the weight concentration of this aqueous solution is 2.1%, times Lithium chlorate: the weight ratio=1:1.2 of bis(acetylacetonate) beryllium; add 2.75g activated carbon, 3.75g carnallite, 4.75g illite, 5.75g washed and sieved-200 mesh~+400 mesh standard sieve Sodium borate, 6.75g sodium nitre, 7.75g lapis lazuli, lithium hypochlorite and bis(acetylacetonate) beryllium weight (3g): porous mineral material weight (31.5g) = 1:9.5, heated to 36°C , continue to stir and react for 3.2h, wash and filter, and obtain 31g of pore-enlarging modified carrier after drying to constant weight; in a 500ml ultrasonic reactor, put 31g of pore-enlarging modified carrier, and then add 3.25g of dimethyl hexadecyl ethyl Ammonium ethyl sulfate is dissolved in 100ml of deionized water in an aqueous solution, the weig...

Embodiment 2

[0008] Embodiment 2:0.24g lithium hypochlorite, 0.36g bis(acetylacetonate) beryllium, 10ml deionized water, join volume and be that in the sealable reactor of 100ml, stir and mix evenly, the weight concentration of this aqueous solution is 5.7%, times Lithium chlorate: the weight ratio=1:1.5 of bis(acetylacetonate) beryllium; add 1.45g activated carbon, 1.65g carnallite, 1.85g illite, 2.05g washed and sieved-200 mesh~+400 mesh standard sieve Sodium borate, 2.25g sodium nitre, 2.45g lapis lazuli, lithium hypochlorite and bis(acetylacetonate) beryllium weight (0.6g): weight of porous mineral material (11.7g) = 1:19.5, heated to 48 ℃, continue to stir and react for 5.8 hours, wash and filter, and dry to constant weight to obtain 11.5g of pore-enlarging modified carrier; in a 100ml ultrasonic reactor, put 11.5g of pore-enlarging modified carrier, and then add 2.2g of dimethylhexadecane Ammonium ethyl ethyl sulfate is dissolved in 26ml of deionized water in an aqueous solution, the...

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PUM

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Abstract

The invention belongs to the technical field of environment protection and chemical catalysts and relates to an ozone heterogeneous oxidation solid catalyst preparation method. The preparation method includes: taking porous mineral materials including activated carbon, carnallite, illite, ulexite, nitratine and dolomite as carriers; subjecting the carriers to lithium hypochlorite and bis(acetylacetone)beryllium broaching modification; adding surfactant dimethylhexadecylethyl ammonium sulfate for surface activation under the action of ultrasonic waves; subjecting the carriers subjected to ultrasonic surface activation to hydrothermal reaction, with a complex mineralizer composed of borax and potassium sulfate, catalytic activity auxiliary agents including samarium acetylacetonate, tri(4,4,4-trifuloro-1-(2-thiophene)-1,3-butanedione)europium, tri(trifluoromethanesulfonimide)ytterbium and lutetium carbonate hydrate rare earth metal compounds and catalytic activity central components including cobalt gluconate, L-aspartic acid molybdenum, gold potassium chloride, tetraammine dichloropalladium transition metals, in a hydrothermal reactor under the action of N-oleoyl-N',N'-diethylethylenediamine hydrochloride serving as an emulsifying agent; drying reaction products to remove moisture, and firing in a muffle furnace at a certain temperature to obtain an ozone heterogeneous oxidation solid catalyst.

Description

technical field [0001] The invention relates to a preparation method of a solid catalyst for ozone heterogeneous oxidation, which belongs to the technical fields of environmental protection and chemical catalysts. Background technique [0002] Ozone oxidation technology utilizes the strong oxidation ability of ozone, which can oxidize and decompose many organic pollutants, and is widely used in wastewater treatment. Ozone catalytic oxidation technology is divided into ozone homogeneous catalytic oxidation and ozone heterogeneous catalytic oxidation. Ozone homogeneous catalytic oxidation has catalysts that are difficult to separate, recycle and reuse, and the low utilization rate of ozone leads to high water treatment operation costs. Ozone heterogeneous catalytic oxidation technology has the advantages of easy separation and recovery of catalysts and reusable use, high ozone utilization rate, and high removal rate of organic pollutants, which reduces water treatment. The ad...

Claims

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Application Information

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IPC IPC(8): B01J23/89B01J20/20B01J20/28B01J20/30C02F1/28C02F1/78B01J32/00C02F101/30
CPCB01J20/06B01J20/12B01J20/20C02F1/281C02F1/725C02F1/78B01J20/28016B01J23/8993B01J37/084B01J37/086B01J37/088B01J37/10C02F2305/023B01J2220/42C02F2101/30B01J35/50B01J35/617B01J35/40B01J35/635B01J35/633B01J35/615B01J35/647
Inventor 朱明石雨晴王希雅
Owner SICHUAN NORMAL UNIVERSITY
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