Method for preparing catalytic iron oxide carbon micro-electrolysis filler through high-temperature activation method

A technology for catalyzing iron oxide carbon and high temperature activation, which is applied in chemical instruments and methods, oxidized water/sewage treatment, sterilization/microdynamic water/sewage treatment, etc. Expensive and other problems, to achieve the effect of multiple current density and electrolysis efficiency, reducing raw material cost and reducing oxygen partial pressure

Pending Publication Date: 2021-11-12
宝武环科武汉金属资源有限责任公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this type of iron-carbon micro-electrolytic filler is expensive due to the use of reduced iron powder, and a non-oxygen environment is required in the preparation process, the relative process and equipment are relatively complicated, and the overall preparation cost is relatively high.

Method used

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  • Method for preparing catalytic iron oxide carbon micro-electrolysis filler through high-temperature activation method
  • Method for preparing catalytic iron oxide carbon micro-electrolysis filler through high-temperature activation method
  • Method for preparing catalytic iron oxide carbon micro-electrolysis filler through high-temperature activation method

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Embodiment 1

[0036] A preparation method for catalytic iron oxide carbon micro-electrolysis filler, specifically comprising the following steps:

[0037] 1) Prepare 5 kg of mixed raw materials with 70% iron oxide scale, 20% coke powder, and 6% bentonite, and add a catalyst with a total mass of 4% of the mixed raw materials; wherein, the catalyst includes alumina powder with a mass ratio of 1:1:1 , manganese dioxide powder and powdered activated carbon;

[0038] 2) Mix the mixture obtained in step 1) and ball mill for 4 hours to ensure that the materials are ball milled to 400 meshes and mixed evenly, then add water with an amount of 6% of the total mass, and press it into green pellets with a diameter of about 5 cm, such as figure 1 ;

[0039]3) Dry the pellets obtained in step 2) at 110° C. for 4 hours in a constant temperature drying oven, put them into a crucible jar, coat the pellets with carbon powder (the quality of the carbon powder is 15% of the pellets) to avoid oxidation, and pu...

Embodiment 2

[0042] A preparation method for catalytic iron oxide carbon micro-electrolysis filler, specifically comprising the following steps:

[0043] 1) Prepare 5 kg of mixed raw materials with 70% iron oxide scale, 24% coke powder, and 4% bentonite, and add a catalyst with a total mass of 2% of the mixed raw materials; wherein, the catalyst includes a 1:1 mass ratio of 1:1:1 : 0.8 alumina powder, manganese dioxide powder and powdered activated carbon;

[0044] 2) Mix the mixture obtained in step 1) and ball mill for 4 hours to ensure that the material is ball milled to 400 mesh and mixed evenly, then add water with an amount of 8% of the total mass, and press it into green pellets with a diameter of about 5 cm;

[0045] 3) Dry the pellets obtained in step 2) at 110° C. for 6 hours in a constant temperature drying oven, put them into a crucible jar, coat the pellets with carbon powder (the quality of the carbon powder is 15% of the pellets) to avoid oxidation, and put Put it into a hi...

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Abstract

The invention discloses a method for preparing a catalytic iron oxide carbon micro-electrolysis filler through a high-temperature activation method, which comprises the steps of a, uniformly mixing and ball-milling raw materials in percentage by weight to obtain raw material powder, wherein the raw materials comprise, by weight, 65%-70% of iron oxide scale, 20%-25% of coke powder, 4%-6% of bentonite and 2%-4% of a catalyst, and the catalyst comprises alumina powder, manganese dioxide powder and powdered activated carbon; adding a small amount of water into the raw material powder, and uniformly mixing to prepare pellets; and after the pellets are dried, coating carbon powder, carrying out high-temperature sintering, then removing the coated carbon powder, and obtaining the catalytic iron oxide carbon micro-electrolysis filler. The preparation method is simple and easy to operate, the sintering process does not need an anaerobic or protective atmosphere adding state, the raw materials are wide in source and low in cost, the filler strength is high, the sewage treatment effect is good, and application and popularization are easy.

Description

technical field [0001] The invention belongs to the technical field of preparation of degradation materials for sewage treatment, and in particular relates to a method for preparing catalytic iron oxide carbon micro-electrolysis fillers by a high-temperature activation method. Background technique [0002] The main function of the iron-carbon micro-electrolysis method is to use new ecological strong reducing substances to carry out reduction reaction, adsorption, flocculation, complexation and electrodeposition in the reaction pool to remove organic oxidized groups. In addition, in the product of the battery reaction, ferrous ions and iron ions may also react with some inorganic substances in the wastewater, thereby generating precipitates and removing them by filtration. [0003] Because the iron-carbon micro-electrolysis method has good benefits and ability to treat wastewater, many domestic scholars have carried out experimental treatment and improvement on it, and it has...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/461C02F1/467C02F1/70C02F1/72C02F1/28C02F101/20C02F101/30
CPCC02F1/461C02F1/4672C02F1/4678C02F1/705C02F1/725C02F1/283C02F2101/20C02F2101/30
Inventor 甘万贵徐先锋龚伟陈少聪余益鸣
Owner 宝武环科武汉金属资源有限责任公司
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