Production technique of yellow phosphorus appropriation electrode

A production process and electrode technology, which is applied to the production process field of special electrodes for yellow phosphorus, can solve the problems of power consumption, high electrode consumption, high production cost of yellow phosphorus, low production yield of yellow phosphorus, etc., so as to reduce electrode consumption and cost. , the effect of increasing daily output

Inactive Publication Date: 2003-10-08
涞水县长城电极有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, graphite electrodes are commonly used in yellow phosphorus smelting and production. High-quality petroleum coke and coal tar pitch are used as raw materials, and are produced through batching, kneading, molding, roasting, impregnation, graphitization, mechanical processing and other processes. The production process is complicated and When using the above-mentioned graphite electrode to smelt yellow phosphorus, due to the limitation of the electrode diameter, the reaction zone is small, resulting in low yellow phosphorus production output, high power consumption and electrode consumption, resulting in high production cost of yellow phosphorus, which is far behind the international level of the same industry. Larger, in a disadvantaged position in competition with international peers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Example 1: Ingredients: The weight percentages of the ingredients in this process are: 0.075mm calcined petroleum coke powder 33%, 0.5mm graphite crushed 18%, 4mm graphite crushed 19%, 4mm electric calcined anthracite 6%, 10mm electric calcined anthracite 3 %, the binder medium temperature coal pitch is 21%.

[0025] Kneading: ①Put the weighed raw materials into a 2000L horizontal double-shaft kneader; ②Dry mixing, dry mixing time is 15 minutes, dry mixing temperature is 120℃; ③When dry mixing temperature is 120℃, add The medium temperature coal tar pitch at 170°C is kneaded; ④The kneading time is 40 minutes, and the kneading temperature is 145°C.

[0026] Molding: ① Cool the kneaded paste on a cooling machine, and put it into the mold when the temperature of the paste drops to 120℃; ②Using hydraulic vertical vibration molding technology, the main process parameters are: hydraulic pressure 5MPa, amplitude 1.0mm, vibration frequency 18Hz, vibration time is 6 minutes; ③After ...

Embodiment 2

[0029] Example 2: Ingredients: The weight percentages of the ingredients in this process are: 0.05mm calcined petroleum coke powder 29%, 4mm graphite crushed 21%, 10mm graphite crushed 11%, 10mm electric calcined anthracite 14%, 16mm electric calcined anthracite 10% , Binder medium temperature coal pitch 15%.

[0030] Kneading: ①Put the weighed raw materials into a 2000L horizontal double-shaft kneader; ②Do dry mixing, dry mixing time is 20 minutes, dry mixing temperature is 125℃; ③When dry mixing temperature is 125℃, add The medium temperature coal tar pitch at 180°C is kneaded; ④The kneading time is 45 minutes, and the kneading temperature is 150°C.

[0031] Molding: ①The kneaded paste is cooled on a cooler, and put into the mold when the temperature of the paste drops to 125℃; ②Using hydraulic vertical vibration molding technology, the main process parameters are: hydraulic pressure 8MPa, amplitude 3.0mm, vibration frequency 25Hz, vibration time is 8 minutes; ③After the vibrati...

Embodiment 3

[0034] Example 3: Ingredients: The weight percentages of the ingredients in this process are: 0.065mm calcined petroleum coke powder 25%, 2.25mm graphite crushed 26%, 7mm graphite crushed 17%, 7mm electric calcined anthracite 12%, 13mm electric calcined anthracite 2 %, the binder medium temperature coal pitch 18%.

[0035] Kneading: ①Put the weighed raw materials into a 2000L horizontal double-shaft kneader; ②Do dry mixing, dry mixing time is 18 minutes, dry mixing temperature is 122℃; ③When dry mixing temperature is 122℃, add The medium temperature coal tar pitch at 175℃ is kneaded; ④The kneading time is 42 minutes and the kneading temperature is 148℃.

[0036] Molding: ①The kneaded paste is cooled on a cooler, and put into the mold when the temperature of the paste drops to 122℃; ②Using hydraulic vertical vibration molding technology, the main process parameters are: hydraulic pressure 6MPa, amplitude 2.0mm, the vibration frequency is 20Hz, and the vibration time is 7 minutes; ③Af...

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Abstract

A special electrode for producing yellow phosphorus is prepared from (0.05-0.075)-mm calcined petroleum coke powder, (0.5-4)-mm graphite particles (4-10)-mm graphite particles, (4-10)-mm electricallycalcined anthracite, (10-16)-mm electrically calcined anthracite and medium-temp coal asphalt as adhesive through proportional mixing, kneading, shaping, calcining and machining. Its advantages are high output of yellow phosphorus, and less electric consumption.

Description

Technical field [0001] The invention relates to a production process of an electric energy carrier material used in the yellow phosphorus smelting industry, in particular to a production process of a special electrode for yellow phosphorus. technical background [0002] At present, graphite electrodes are commonly used in yellow phosphorus smelting production, using high-quality petroleum coke and coal pitch as raw materials, through batching, kneading, molding, roasting, impregnation, graphitization, and mechanical processing. The production process is complicated and When using the above-mentioned graphite electrodes to smelt yellow phosphorus, due to the small reaction area limited by the electrode diameter, the production yield of yellow phosphorus is low, and the power consumption and electrode consumption are high. As a result, the production cost of yellow phosphorus is higher, which is far behind the international industry level. Larger, in a disadvantaged position in com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B25/027C04B35/52C04B35/622C25B11/00C25B11/12
Inventor 王金铎杨海春张永清唐济革
Owner 涞水县长城电极有限公司
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