Preparation method of composite manganese sulfide catalyst

A catalyst, manganese sulfide technology, used in physical/chemical process catalysts, chemical instruments and methods, chemical/physical processes, etc., can solve the problem of lack of comprehensive utilization, and achieve the effect of large surface area

Inactive Publication Date: 2018-11-06
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Hydrogen sulfide is often absorbed or washed into waste during the treatment process, without comprehensive utilization

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] At room temperature, add a manganese chloride solution with a concentration of 0.5 to 1.0 mol / L dropwise into a copper chloride solution with a concentration of 0.1 to 0.5 mol / L to control the Mn 2+ / Cu 2+ =5~8:1, after the dropwise addition is completed, place the mixed solution in boiling water at 100°C to generate copper hydroxide colloid, manganese chloride is adsorbed on the surface of the copper hydroxide colloid; add 2g of attapulgite to the above In the colloidal solution, stir for 20-40 minutes, and then introduce hydrogen sulfide gas, the concentration of hydrogen sulfide gas is 20-40ppm, feed 20-40L hydrogen sulfide gas per 100mL colloidal solution, and stir to form a precipitate, and the precipitate is solidified Liquid separation, washing with distilled water for 3 to 5 times, and drying at 105°C to obtain a composite manganese sulfide catalyst.

[0013] The specific surface area of ​​the prepared composite manganese sulfide catalyst is: 620m 2 / g.

[00...

Embodiment 2

[0016] At room temperature, add a manganese chloride solution with a concentration of 0.5 to 1.0 mol / L dropwise into a copper chloride solution with a concentration of 0.1 to 0.5 mol / L to control the Mn 2+ / Cu 2+ =5~8:1, after the dropwise addition is completed, place the mixed solution in boiling water at 100°C to generate copper hydroxide colloid, manganese chloride is adsorbed on the surface of the copper hydroxide colloid; add 2g of attapulgite to the above In the colloidal solution, stir for 20-40 minutes, and then introduce hydrogen sulfide gas, the concentration of hydrogen sulfide gas is 20-40ppm, feed 20-40L hydrogen sulfide gas per 100mL colloidal solution, and stir to form a precipitate, and the precipitate is solidified Liquid separation, washing with distilled water for 3 to 5 times, and drying at 105°C to obtain a composite manganese sulfide catalyst.

[0017] Add 0.5g of composite manganese sulfide catalyst to 200mL of acid orange dye wastewater with a concentr...

Embodiment 3

[0019] At room temperature, add a manganese chloride solution with a concentration of 0.5 to 1.0 mol / L dropwise into a copper chloride solution with a concentration of 0.1 to 0.5 mol / L to control the Mn 2+ / Cu 2+ =5~8:1, after the dropwise addition is completed, place the mixed solution in boiling water at 100°C to generate copper hydroxide colloid, manganese chloride is adsorbed on the surface of the copper hydroxide colloid; add 2g of attapulgite to the above In the colloidal solution, stir for 20-40 minutes, and then introduce hydrogen sulfide gas, the concentration of hydrogen sulfide gas is 20-40ppm, feed 20-40L hydrogen sulfide gas per 100mL colloidal solution, and stir to form a precipitate, and the precipitate is solidified Liquid separation, washing with distilled water for 3 to 5 times, and drying at 105°C to obtain a composite manganese sulfide catalyst.

[0020] 0.6g of composite manganese sulfide catalyst was added to 200mL of methylene blue wastewater with a con...

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Abstract

The invention discloses a preparation method of a composite manganese sulfide catalyst. The preparation method sequentially comprises the following steps: dropwise adding a manganese chloride solutionwith the concentration of 0.5-1.0 mol/L in a copper chloride solution with a concentration of 0.1-0.5 mol/L, controlling that Mn<2+>/Cu<2+> is equal to (5-8):1, placing a mixed solution in boiling water of 100 DEG C after the completion of dropwise adding, generating a cupric hydroxide colloid and adsorbing the manganese chloride on the surface of the cupric hydroxide colloid; adding 2 g of attapulgite in the colloid solution, stirring for 20-40 minutes and then introducing hydrogen sulfide gas, wherein the concentration of the hydrogen sulfide gas is 20-40 ppm; introducing 20-40 L of hydrogen sulfide gas into per 100 mL of the colloidal solution, stirring to generate a precipitate, performing solid-liquid separation on the precipitate, washing with distilled water for 3-5 times and thendrying at a temperature of 105 DEG C to obtain the composite manganese sulfide catalyst. The preparation method of the composite manganese sulfide catalyst, disclosed by the invention, has the advantages that hydrogen sulfide waste gas produced by chemical production is utilized as a raw material, the hydrogen sulfide gas is absorbed, wastes are changed into valuables, and the copper oxide composite manganese sulfide catalyst is formed on the surface of the attapulgite.

Description

technical field [0001] The invention relates to the field of new materials for environmental pollution control, in particular to a preparation method of a composite manganese sulfide catalyst. Background technique [0002] Hydrogen sulfide widely exists in natural gas and biogas, and has a pungent stench. It is not only highly toxic to the human body, but also flammable and explosive. It will cause great pollution to the environment, and sometimes even waste a lot of resources because of the existence of low concentration hydrogen sulfide. All sulfur-containing compounds have the possibility of generating hydrogen sulfide through various reactions. The hydrogen sulfide in industrial waste gas mainly comes from oil refineries, natural gas purification plants, gas purification plants, smelters, tanneries, nitrogen fertilizer plants, and pesticide plants. etc., but in terms of quantity, it is dominated by oil refineries, natural gas purification plants, coal gas purification p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/043C02F1/30
CPCB01J27/043B01J35/004C02F1/30C02F2101/308C02F2305/10
Inventor 吴晓峰马建锋王晋
Owner CHANGZHOU UNIV
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