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Energy-saving environment-friendly high-efficiency ozone catalyst preparation method

An energy saving, environmental protection, catalyst technology, applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc., can solve the problems of poor reaction selectivity and low organic pollutant treatment capacity. , to achieve the effect of large specific surface, good adsorption and desorption rates, and long service life

Inactive Publication Date: 2018-12-18
江西萍乡市成宇陶瓷有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although ozone can oxidize a lot of organic matter in sewage, the purpose is to break the chemical bonds of organic matter and degrade them from large molecules to colorless small molecules, but there are still shortcomings in the decolorization and oil removal process, especially in low temperature sewage treatment. The selectivity of the reaction with organic matter is poor; simply using the ozonation oxidation process, the treatment capacity for organic pollutants is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Weigh 100kg of activated clay, 15kg of bamboo charcoal, and 15kg of graphite into the mixer for 10 minutes, then spray water into the mixer and mix for 60 minutes to make the humidity of the raw materials uniform. After adding water or liquid binder to the machine and kneading for 2 hours, the required specifications such as columnar or spherical carrier particles are prepared through templates of different specifications and granulation.

[0022] After drying the surface of the carrier particles, put them into a dryer and dry them at 150° C. for 2 hours, and then bake them at a calcination temperature of 550-700° C. for 2 hours under the protection of nitrogen to obtain an active carrier.

[0023] Place the active carrier cooled to room temperature for 12 hours to prepare for the dipping or spraying method.

[0024] Take by weighing manganese dioxide, copper chloride is put into the container and dissolve into solution for subsequent use respectively; Wherein the weigh...

Embodiment 2

[0029] Weigh manganese dioxide: 8.75kg, copper oxide: 4.95kg, activated clay 90kg, bamboo charcoal 20kg, graphite 20kg.

[0030] The weighing of activated clay, bamboo charcoal, and graphite is the amount of active carrier, and the mode and process of producing the carrier are the same as in Example 1.

[0031] The loading process is the same as in Example 1.

[0032] Catalyst: Ozone decomposition rate: (180min) 98.2%, specific surface > 410㎡ / g, effective adsorption pore size: > 18.2nm, degreasing > 45ppm, decolorization effect > 98.1%.

Embodiment 3

[0034] Take by weighing activated clay 80kg, bamboo charcoal 20kg, graphite 30kg, manganese dioxide 8.5kg, copper oxide 5kg. The preparation method is the same as in Example 1, wherein the calcination temperature of the catalyst carrier particles is 450-600°C, and the calcination time is 3h;

[0035] Manganese dioxide and copper oxide are inhaled into the carrier by impregnation method for more than 32 hours, and placed in a mesh belt kiln at 180°C-270°C for 2-6 hours to complete the resurrection of the catalyst.

[0036] The ozone decomposition rate of the catalyst (within 200min) is 97.9%, the specific surface is >426㎡ / g, the effective adsorption pore size is >18.6nm, the degreasing effect is >47ppm, and the decolorization effect is >97.6%.

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PUM

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Abstract

The invention discloses an energy-saving environment-friendly high-efficiency ozone catalyst preparation method which comprises the following steps: 1) weighing an active carrier material, drying after being granulated and roasting under 500 to 700 DEG C under the nitrogen protection to prepare an active carrier, wherein the active carrier material is a mixture of one or several of activated clay,bentonite, crucible soil, sea foam, kaolin, attapulgite and pseudo-boehmite with bamboo carbon and graphite; 2) utilizing a dipping or spraying method to load manganese compound and copper compound on the active carrier. The preparation method disclosed by the invention is combined with an electrolytic oxidation method, so that the preparation method is especially favorable for improving ozone todegrade organisms in sewage and is favorable for a decoloring effect on the sewage, and pollution cleaning can achieve purifying, energy-saving and environment-friendly effects.

Description

technical field [0001] The invention relates to the technical field of catalyst preparation, in particular to a method for preparing an energy-saving and environment-friendly high-efficiency ozone catalyst. Background technique [0002] Ozone is highly oxidizing, enabling it to react with various chromophores in sewage. Although ozone can oxidize many organic substances in sewage, the purpose is to break the chemical bonds of organic substances and degrade them from macromolecules to colorless small molecules, but there are still deficiencies in the decolorization and degreasing process, especially in low temperature sewage treatment. The selectivity of the reaction with organic matter is poor; simply using the ozonation oxidation process, the treatment capacity for organic pollutants is low. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the above shortcomings of the prior art: to provide a method for prepari...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/889B01J35/02B01J35/10C02F1/78B01J35/00
CPCC02F1/725C02F1/78B01J23/8892B01J35/50B01J35/615
Inventor 甘成模黄德金甘玲甘宇黎婷张艳稻
Owner 江西萍乡市成宇陶瓷有限责任公司
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