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Method for simultaneously preparing pure iron alloy and carbide derived carbon by using carbon iron alloy as raw material

A carbide-derived carbon and ferroalloy technology, applied in the electrolysis process, electrolysis components, etc., can solve the problems of high price of carbide-derived carbon, complex preparation process, long production cycle, etc., to reduce production costs, simple equipment operation, environmental protection low pollution effect

Active Publication Date: 2016-10-12
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These methods have complicated preparation process, long production cycle and high energy consumption, resulting in high price of carbide-derived carbon, which limits its application.

Method used

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  • Method for simultaneously preparing pure iron alloy and carbide derived carbon by using carbon iron alloy as raw material
  • Method for simultaneously preparing pure iron alloy and carbide derived carbon by using carbon iron alloy as raw material
  • Method for simultaneously preparing pure iron alloy and carbide derived carbon by using carbon iron alloy as raw material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Heat the high-carbon ferromanganese to 1300°C in an electric furnace to melt, take it out at high temperature and cast it into a copper mold, and quickly cool it to make a rod (5mm in diameter, 50mm in length), then connect the high-carbon ferromanganese with a conductive material and draw it out as an anode. High-purity tungsten (purity>99.9%, diameter 8mm, length 80mm) was used as cathode. In the resistance furnace, use the alumina corundum crucible as the electrolytic cell, weigh 35g of sodium chloride and 43g of potassium chloride, with a total weight of 78g, put them into the alumina corundum crucible, pass argon gas into the resistance furnace, and turn on cooling water , Then, raise the temperature to 200°C, keep the temperature for 2h to remove moisture, and then raise the temperature to 710°C to melt the mixed salt. Finally, put the electrode into a corundum crucible, and conduct electrolysis at a voltage of 0.3V through a DC stabilized power supply for 4 hours...

Embodiment 2

[0028] Heat high-carbon ferrochrome to 1900°C in a vacuum induction furnace to melt, take it out and cast it into mullite insulation bricks with good thermal insulation performance to cool slowly, and make it into a plate with a fixed size (thickness 3mm, length and width) Both are 40mm), and then the high-carbon ferrochrome is connected with the conductive material and drawn out as the anode, and the high-purity molybdenum (purity>99.9%, diameter 8mm, length 80mm) is used as the cathode. In the resistance furnace, use the alumina corundum crucible as the electrolytic cell, weigh 30g of sodium chloride and 40g of potassium chloride, with a total weight of 70g, put them into the alumina corundum crucible, pass argon gas into the resistance furnace, and turn on cooling water , Then, raise the temperature to 200°C, keep the temperature for 2h to remove moisture, and then raise the temperature to 720°C to melt the mixed salt. Finally, put the electrode into a corundum crucible, an...

Embodiment 3

[0030] Heat high-carbon ferrovanadium to 1800°C in a vacuum induction furnace to melt, take it out at high temperature and cast it into a copper mold, and quickly cool it to prepare a rod shape (diameter 5mm, length 50mm), then connect high-carbon ferrovanadium with conductive material and lead it out as anode. High-purity tungsten (purity>99.9%, diameter 8mm, length 80mm) was used as cathode. In the resistance furnace, use the alumina corundum crucible as the electrolytic cell, weigh 36g of sodium chloride and 39g of potassium chloride, with a total weight of 75g, put them into the alumina corundum crucible, pass argon gas into the resistance furnace, and turn on cooling water , Then, raise the temperature to 200°C, keep the temperature for 2h to remove moisture, and then raise the temperature to 740°C to melt the mixed salt. Finally, put the electrode into a corundum crucible, and conduct electrolysis at a voltage of 0.4V through a DC stabilized power supply for 8 hours. A...

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Abstract

The invention discloses a method for simultaneously preparing a pure iron alloy and carbide derived carbon by using a carbon iron alloy as a raw material and belongs to the technical field of iron alloy refining and preparation of novel carbon materials. According to the method, the carbon-iron alloy is used as the raw material to manufacture a platy or rod-like molten salt electro-refining anode; a chloride molten salt is used as an electrolyte, high-melting-point metal materials such as tungsten and molybdenum are used as a cathode to perform molten salt electrolysis in an inert atmosphere such as argon; after electrolysis finishes, the anode material is taken out and is subjected to water-washing, acid-washing, water-washing and drying treatment to obtain the carbide derived carbon; a pure iron alloy deposited on the cathode is taken out, is remelted in a resistance furnace and is cast to form a pure iron alloy product. By adopting a molten salt electro-refining method, the method disclosed by the invention is capable of simultaneously preparing high-additional-value pure iron alloy and carbide derived carbon by using a cheap carbon iron alloy raw material, and is short in technological process, simple in equipment and low in environmental pollution.

Description

technical field [0001] The invention belongs to the technical field of ferroalloy refining and preparation of new carbon materials, and specifically relates to a preparation technology of pure ferroalloy and carbide-derived carbon, in particular to a method of preparing pure ferroalloy and carbide by using carbon ferroalloy as raw material through molten salt electrolytic refining Methods of deriving carbon. Background technique [0002] The establishment of a clean steel production system requires the support of pure ferroalloys. The use of pure iron alloys with strictly controlled impurity content in steelmaking can not only reduce the task of steelmaking, but also help to further improve the cleanliness of steel, thereby improving and improving the quality of steel. According to the requirements of pure steel, pure ferroalloys mainly refer to ferroalloys with very low content of carbon, sulfur, phosphorus and inclusions. [0003] Carbide-derived carbon means that the me...

Claims

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Application Information

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IPC IPC(8): C25C3/36C25B1/00C01B31/02
CPCC01P2002/72C01P2004/03C25B1/00C25C3/36
Inventor 肖赛君高龙刘威
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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