Preparation method for microwave phosphorus ammonium type zeolite material for desulfurization waste water

A technology for zeolite materials and desulfurization wastewater, which is applied in chemical instruments and methods, gaseous effluent wastewater treatment, water/sewage treatment, etc., can solve problems such as shortage, and achieve the goal of increasing the adsorption pore size, improving the adsorption capacity, and reducing the content of organic matter Effect

Inactive Publication Date: 2015-04-22
STATE GRID CORP OF CHINA +1
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  • Description
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Problems solved by technology

In view of the lack of low-pollution treatment of desulfurization wastewater in current thermal power generation systems, ammonium-type zeolite is modified by microwave ammonium phosphate, and a microwave-type ammonium phosphate zeolite material that can be used to treat desulfurization wastewater is invented, in order to provide low-pollution treatment of desulfurization Wastewater offers a new water treatment material

Method used

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  • Preparation method for microwave phosphorus ammonium type zeolite material for desulfurization waste water
  • Preparation method for microwave phosphorus ammonium type zeolite material for desulfurization waste water
  • Preparation method for microwave phosphorus ammonium type zeolite material for desulfurization waste water

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preparation example Construction

[0025] A preparation method for a microwave ammonium phosphate zeolite material for desulfurization wastewater, comprising the following steps:

[0026] (1) The granular natural clinoptilolite with a mass fraction of 1-1.5 parts is placed in a hydrothermal generator at 35°C, and a mass fraction of 2-3.5 parts with a concentration of 8.5g / L-10g / L is added The ammonium ion type I compound solution was hydrothermally modified for 24 hours, and the product was washed with hot deionized water for 3 times, dried at 105°C for 6 hours, and then ammonium-type zeolite was produced;

[0027] Wherein, the ammonium ion type I compound solution comprises components constituted by mass fraction as:

[0028] Dibutyl xanthate n-butyl disulfide (CPB) 1-1.5 parts

[0029] Dodecyl dimethyl betaine (BS-12) 2.3-2.8 parts;

[0030] (2) Soak the ammonium zeolite obtained above in concentrated phosphoric acid with a mass fraction of 4-5 parts at 30°C, then wash with hot deionized water for 3 times, ...

example 1

[0037] A preparation method for a microwave ammonium phosphate zeolite material for desulfurization wastewater, comprising the following steps:

[0038] (1) Place the granular natural clinoptilolite with a mass fraction of 1 part in a hydrothermal generator at 35°C, and add 2 parts of ammonium ion type I compound solution with a concentration of 8.5g / L for mass fraction. After hydrothermal modification for 24 hours, the product was washed with hot deionized water for 3 times and dried at 105°C for 6 hours to make ammonium zeolite;

[0039] Wherein, the ammonium ion type I compound solution comprises components constituted by mass fraction as:

[0040] Dibutyl xanthate n-butyl disulfide (CPB) 1 part

[0041] 2.3 parts of dodecyl dimethyl betaine (BS-12);

[0042] (2) Soak the ammonium zeolite obtained above in concentrated phosphoric acid with a mass fraction of 4 parts at 30°C, then wash with hot deionized water for 3 times, and dry at 105°C for 6 hours;

[0043] Wherein, t...

example 2

[0046] A preparation method for a microwave ammonium phosphate zeolite material for desulfurization wastewater, comprising the following steps:

[0047] (1) Place the granular natural clinoptilolite with a mass fraction of 1.25 parts in a hydrothermal generator at 35°C, add 3 parts of ammonium ion type I compound solution with a concentration of 9g / L for water After heat modification for 24 hours, the product was washed with hot deionized water for 3 times and dried at 105°C for 6 hours to make ammonium zeolite;

[0048] Wherein, the ammonium ion type I compound solution comprises components constituted by mass fraction as:

[0049] Dibutyl xanthate n-butyl disulfide (CPB) 1 part

[0050] 2.5 parts of dodecyl dimethyl betaine (BS-12);

[0051] (2) Soak the ammonium zeolite obtained above in concentrated phosphoric acid with a mass fraction of 4.5 parts at 30°C, then wash with hot deionized water for 3 times, and dry at 105°C for 6 hours;

[0052] Wherein, the concentration ...

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Abstract

The invention relates to a preparation method for a microwave phosphorus ammonium type zeolite material for desulfurization waste water. The preparation method comprises the steps of (1) adding granular natural clinoptilolite into ammonium ion I type compound liquid for hydrothermal modification for 24 hours, and preparing ammonium type zeolites after flushing and drying; (2) dipping and washing the ammonium type zeolites in strong phosphoric acid, and drying the ammonium type zeolites for 6 hours; (3) putting the dried ammonium type zeolites in a microwave generator to conducting a solid-liquid phase isomorphous substitution reaction, washing and drying a product to prepare the microwave phosphorus modified ammonium type zeolites. The number of internal adsorption ducts of the microwave phosphorus ammonium type zeolites is increased, the adsorption caliber is increased, the structure is the structural basis of zeolite anion exchange, negative ions in the water can be removed through ion exchange, and the capacity of adsorbing organisms in the desulfurization waste water is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of desulfurization wastewater treatment materials for thermal power plants, in particular to a preparation method of microwave ammonium phosphate zeolite materials used for desulfurization wastewater. Background technique [0002] Thermal power plants will produce desulfurization wastewater during production. The wastewater includes a large number of inorganic pollutants (such as heavy metal cations, anions) and organic pollutants. Currently, the treatment of desulfurization wastewater mainly includes chemical precipitation, biological methods, and chemical precipitation-microfiltration membrane methods. etc., but the chemical precipitation method is to add chemical agents to the desulfurization wastewater, and the product chemical sludge is easy to cause secondary pollution; while the biological method uses microorganisms to degrade organic matter into inorganic matter, and the metabolism creates conditions ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/18B01J20/30C02F1/28C02F103/18
CPCB01J20/186B01J20/28078B01J2220/40B01J2220/4806C02F1/281C02F2103/18
Inventor 苏展郭军科于金山卢立秋郝春艳赵鹏邵林刘鸿芳
Owner STATE GRID CORP OF CHINA
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