Preparation method of ferric-carbon internal electrolysis filler

An internal electrolysis, iron and carbon technology, applied in chemical instruments and methods, natural water treatment, water/sewage treatment, etc., can solve the problems of uneven iron powder, low reaction efficiency, etc., to increase the specific surface area of ​​the reaction, improve the reaction Efficiency, the effect of solving the underdeveloped pore structure

Active Publication Date: 2016-05-04
武汉钢铁有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, iron-carbon internal electrolytic filler particles are mainly made by doping iron powder into activated carbon. The preparation of this type of internal electrolytic filler particles is simple, but due to the inhomogeneity of iron powder in the carbon particles, resulting in its reaction low efficiency

Method used

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  • Preparation method of ferric-carbon internal electrolysis filler
  • Preparation method of ferric-carbon internal electrolysis filler
  • Preparation method of ferric-carbon internal electrolysis filler

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A preparation method of electrolytic filler in iron carbon, specifically comprising the following steps:

[0034] 1) Get 50g of oil sludge from the magnetic rod filter of the cold-rolled emulsion workshop section and place it in 2000g of high-volatile gas-coal powder, and fully mix the two with a mixer; the components in the cold-rolled oil sludge are by mass The percentages are: 22% of mineral oil, 15% of vegetable oil, 40% of iron, 3% of surfactant, and 20% of water; the particle size of high volatile gas coal powder is 90-150 microns;

[0035] 2) Put the mixture obtained in step 1) into a heating furnace to raise the temperature, and when the temperature reaches 100° C., feed N into the heating furnace. 2 , continue to heat the heating furnace until the temperature rises to 900°C, and keep the heating furnace at 900°C; 2 , so that the furnace temperature is cooled to 100 ° C; when the furnace temperature is cooled to 100 ° C, stop feeding nitrogen until the heating ...

Embodiment 2

[0038] A preparation method of electrolytic filler in iron carbon, specifically comprising the following steps:

[0039] 1) Take 50g of oil sludge from the magnetic rod filter of the cold-rolled emulsion workshop section and place it in 1000g of high-volatile gas coal, and fully mix the two with a stirrer; the components in the cold-rolled oil sludge are by mass percentage Calculated as: 30% mineral oil, 10% vegetable oil, 40% iron, 5% surfactant, 15% water; the particle size of high volatile gas coal powder is 100-200 microns;

[0040] 2) Put step 1) gained mixture into heating furnace, pass into N in heating furnace 2 For protection, heat preservation after the temperature rises to 800 ° C; after 1.5 hours of heat preservation, keep N 2 In the case of continuous feeding, the furnace temperature is gradually cooled to room temperature to obtain iron-doped activated carbon, that is, to obtain the electrolytic filler in iron-carbon;

[0041] 3) The iron-carbon internal electr...

Embodiment 3

[0043] A preparation method of electrolytic filler in iron carbon, specifically comprising the following steps:

[0044] 1) Take 50g of oil sludge from the magnetic rod filter of the cold-rolled emulsion workshop section and place it in 2500g of high-volatile gas coal, and fully mix the two with a mixer; the components in the cold-rolled oil sludge are by mass percentage Calculated as: 20% of mineral oil, 10% of vegetable oil, 57% of iron, 3% of surfactant, and 15% of water; the particle size of high volatile gas coal powder is 200-300 microns;

[0045] 2) Put the mixture obtained in step 1) into a heating furnace to raise the temperature, and when the temperature reaches 100° C., feed N into the heating furnace. 2 , continue to heat the heating furnace until the temperature rises to 850°C, and keep the heating furnace at 850°C; 2 , so that the furnace temperature is cooled to 100 ° C; when the furnace temperature is cooled to 100 ° C, stop feeding nitrogen until the heating ...

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Abstract

The invention discloses a preparation method of a ferric-carbon internal electrolysis filler; the preparation method comprises the steps of taking cold-rolled oil sludge and pulverized coal as raw materials, mixing the raw materials evenly, then carrying out dry distillation under the protection of inert gas to obtain iron-doped activated carbon, and thus obtaining the ferric-carbon internal electrolysis filler. The iron and steel industry common pulverized coal and cold-rolled oil sludge are sintered into iron-containing activated carbon particles comprising micron-sized iron and reduced iron components, and a pore forming phenomenon appears in ferric-carbon internal electrolysis filler particles, so that the reaction efficiency of a primary battery is improved and the cost is low.

Description

technical field [0001] The invention belongs to the field of metallurgy and environmental protection, and in particular relates to a method for preparing an electrolytic filler in iron-carbon. Background technique [0002] In the wastewater treatment process, the advanced oxidation method has become the first method to treat refractory wastewater because of its high degradation efficiency and broad spectrum of organic species. In the advanced oxidation process, iron-carbon internal electrolysis is an efficient treatment process. The principle of its treatment is mainly to form an iron-carbon primary battery, which oxidizes the refractory organic matter in the wastewater, so as to achieve the purpose of degrading the organic matter in the wastewater. . In the iron-carbon internal electrolytic treatment process, its high-efficiency electric carbon primary battery particles are the key to the treatment efficiency. At present, iron-carbon internal electrolytic filler particles...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/461
CPCC02F1/461C02F2103/34
Inventor 刘尚超薛改凤段建峰张垒王丽娜刘璞付本全康凌晨卢丽君刘瑛
Owner 武汉钢铁有限公司
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