A kind of high-performance mesophase carbon microspheres and preparation method thereof
A technology of mesophase carbon microspheres and mesophase pitch, which is applied in the preparation/purification of carbon, chemical instruments and methods, carbon compounds, etc., to achieve the effects of high yield, uniform particle size distribution, and accelerated formation and growth
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Embodiment 1
[0026] The medium and low temperature coal tar was used as the feed of the process, and the n-heptane insolubles were separated through n-heptane extraction, and 200 g of the extracted oil after the solvent was evaporated to dryness was mixed with 6 g of molybdenum hexacarbonyl, and the mixed solution was placed in the autoclave. , under nitrogen protection, the temperature was raised to 300 °C for 3 h of shallow catalytic reaction, and the potential mesophase pitch precursor with components >450 °C was separated under reduced pressure; 170 g of mesophase pitch precursor, 20 g of n-heptane insoluble matter and four 10g of hydronaphthalene was fully mixed, and the mixture was placed in an autoclave. Under 3Mpa nitrogen pressure, the temperature was raised to 400°C for 4h heterogeneous nucleation reaction to obtain a parent phase pitch rich in mesophase pellets, which was naturally cooled to room temperature , adding the parent phase pitch rich in mesophase pellets to the washing...
Embodiment 2
[0028] The medium and low temperature coal tar is used as the feed of this process, and the n-heptane insolubles are separated through n-heptane extraction, 200g of the extracted oil after evaporating the solvent and 10.5g of carbonyl iron are mixed, and the mixed solution is taken and placed in the autoclave. , under nitrogen protection, the temperature was raised to 340 °C for 3 h of shallow catalytic reaction, and the potential mesophase pitch precursor with components > 450 °C was separated under reduced pressure; 150 g of mesophase pitch precursor, 30 g of n-heptane insoluble matter and four 10 g of hydronaphthalene was fully mixed, and the mixture was placed in an autoclave. Under the nitrogen pressure of 3 Mpa, the temperature was raised to 440 °C for 4 h of heterogeneous nucleation to obtain a parent phase pitch rich in mesophase spheres, which was naturally cooled to room temperature. , adding the parent phase pitch rich in mesophase pellets to the washing oil, adding ...
Embodiment 3
[0030]The high-temperature coal tar is used as the feed of the process, and the n-heptane insolubles are separated through n-heptane extraction, and 200 g of the extracted oil after the solvent is evaporated to dryness and 15 g of platinum naphthenate are mixed, and the mixed solution is placed in the autoclave. , under nitrogen protection, the temperature was raised to 320 °C for 3 h of liquid-phase induced polycondensation reaction, and the potential mesophase pitch precursor with components >450 °C was separated under reduced pressure; 170 g of mesophase pitch precursor, 20 g of n-heptane insoluble matter and 10g of tetrahydronaphthalene was fully mixed, and the mixture was placed in an autoclave. Under 3Mpa nitrogen pressure, the temperature was raised to 420°C for 4h heterogeneous nucleation reaction to obtain a parent phase pitch rich in mesophase pellets, which was naturally cooled to At room temperature, the parent phase pitch rich in mesophase pellets was added to the ...
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Abstract
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