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A preparation method for extracting ultrafine carbon material from pitch

A carbon material and pitch technology, which is applied in the field of extracting ultrafine carbon materials, can solve the problems of insufficient product fineness, low efficiency and low purity, and achieve the effects of low processing equipment requirements, high efficiency and high purity

Active Publication Date: 2021-06-25
科鑫炭材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When removing QI to prepare refined asphalt, the solid powder containing QI is used as an ultra-fine carbon material for downstream manufacturers. It is an excellent raw material for the production of high-density and high-strength carbon materials, and it solves the solid waste generated in the process of refining asphalt At the same time, the efficiency is increased, but the efficiency of the traditional method of extracting ultrafine carbon materials from asphalt is relatively low, the extraction purity is not high, and the fineness of the product is not enough; therefore, we propose a method for extracting ultrafine carbon materials from asphalt Preparation method of carbon material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A preparation method for extracting superfine carbon materials from pitch, comprising the following steps:

[0019] S1: Add washing oil to medium temperature asphalt with a softening point of 70°C, and mix well to obtain soft asphalt with a softening point of 45°C;

[0020] S2: Add soft asphalt into the stirred reactor, and sequentially add modification additives to the reactor for modification, raise the reaction temperature to 150°C, and react at constant temperature for 5 hours to obtain refined asphalt;

[0021] S3: Add refined asphalt as a raw material into the blending tank and heat it to a completely molten state, then add 18% aromatic solvent to the blending tank for dissolution and dilution;

[0022] S4: Add additives to the dissolved and diluted refined asphalt and stir evenly. During stirring, the temperature is controlled at 130°C. The additives are added in 3 times with an interval of 5 minutes. The temperature increases by 2°C each time. By adding the addi...

Embodiment 2

[0030] A preparation method for extracting superfine carbon materials from pitch, comprising the following steps:

[0031] S1: Add washing oil to medium-temperature asphalt with a softening point of 80°C, and mix well to obtain soft asphalt with a softening point of 55°C;

[0032] S2: Add soft asphalt into the stirred reactor, and sequentially add modification additives to the reactor for modification, raise the reaction temperature to 170°C, and react at constant temperature for 6 hours to obtain refined asphalt;

[0033] S3: Add refined asphalt as a raw material into the blending tank and heat it to a completely molten state, then add 25% aromatic solvent to the blending tank for dissolution and dilution;

[0034] S4: Add additives to the dissolved and diluted refined asphalt and stir evenly. During stirring, the temperature is controlled at 140°C. Additives are added in 4 times with an interval of 10 minutes. The temperature increases by 3°C each time. By adding additives ...

Embodiment 3

[0042] A preparation method for extracting superfine carbon materials from pitch, comprising the following steps:

[0043] S1: Add phenanthrene residual oil to medium-temperature asphalt with a softening point of 95°C, and mix well to obtain a soft asphalt with a softening point of 65°C;

[0044] S2: Add soft asphalt into the stirred reactor, and sequentially add modification additives to the reactor for modification, raise the reaction temperature to 180°C, and react at constant temperature for 8 hours to obtain refined asphalt;

[0045] S3: Add refined asphalt as a raw material into the blending tank and heat it to a completely molten state, then add 30% aromatic solvent to the blending tank for dissolution and dilution;

[0046] S4: Add additives to the dissolved and diluted refined asphalt and stir evenly. During stirring, the temperature is controlled at 150°C. The additives are added in 5 times with an interval of 15 minutes. The temperature increases by 4°C each time. B...

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PUM

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Abstract

The invention discloses a preparation method for extracting superfine carbon materials from asphalt, which comprises the following steps: preparing soft asphalt, preparing refined asphalt, dissolving and diluting, adding additives, hot-melt separation, drying and grinding and removing additives; The preparation method is more scientific and reasonable. The preparation method of extracting ultrafine carbon materials from asphalt is to prepare refined asphalt by adding modified additives and high-temperature modification. The refined asphalt is used as raw material, and aromatic hydrocarbon solvent is added to dissolve and dilute. Additives, increase the particle size of QI, and use the method of hot-melt separation to recover the solid powder containing QI. After removing the additives, the ultra-fine carbon material can be obtained. The obtained ultra-fine carbon material can meet the requirements of fineness and purity. High quality, considerable quality, high production efficiency and low processing equipment requirements, it is worth promoting.

Description

technical field [0001] The invention relates to the technical field of asphalt, in particular to a preparation method for extracting ultrafine carbon materials from asphalt. Background technique [0002] When removing QI to prepare refined asphalt, the solid powder containing QI is used as an ultra-fine carbon material for downstream manufacturers. It is an excellent raw material for the production of high-density and high-strength carbon materials, and it solves the solid waste generated in the process of refining asphalt At the same time, the efficiency is increased, but the efficiency of the traditional method of extracting ultrafine carbon materials from asphalt is relatively low, the extraction purity is not high, and the fineness of the product is not enough; therefore, we propose a method for extracting ultrafine carbon materials from asphalt Preparation methods of carbon materials. Contents of the invention [0003] The object of the present invention is to provid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10C3/02C01B32/05
CPCC10C3/02C01B32/05
Inventor 王忠聂矿新
Owner 科鑫炭材料有限公司
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