A kind of mixed asphalt with different compositions of coal tar pitch and its production process
A technology of coal tar pitch and coal tar pitch, applied in building components, building insulation materials, construction, etc., can solve the problem of high cost, more synthetic rubber and synthetic resin, and the performance of coal tar pitch road oil is difficult to achieve high-grade road asphalt, etc. problems, to achieve the effects of low production cost, easy large-scale production, and wide source of raw materials
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Embodiment 1
[0030] Add 35 parts of coal tar pitch 1 and 35 parts of coal tar pitch 5 into the mixing reactor, raise the temperature in the mixing reactor to 100°C to soften the coal tar pitch; then 30 parts of coking solvent oil, and raise the temperature in the reactor Mix at 200°C for 0.5h.
[0031] The quality index of the prepared coal tar pitch mixed asphalt is as follows:
[0032]
[0033] The initial boiling point of the coking solvent oil used in this example is 264°C, the final boiling point is 411°C, and the distillate before 400°C accounts for 92.2%.
Embodiment 2
[0035] Add 14 parts of coal tar pitch 1 and 56 parts of coal tar pitch 6 into the mixing reactor, and raise the temperature in the mixing reactor to 100°C to soften the coal tar pitch; then 30 parts of coking solvent oil, and raise the temperature in the reactor Mix at 180°C for 2h.
[0036] The quality index of the prepared coal tar pitch mixed asphalt is as follows:
[0037]
[0038] The initial boiling point of the coking solvent oil used in this example is 264°C, the final boiling point is 411°C, and the distillate before 400°C accounts for 92.2%.
Embodiment 3
[0040] Add 17.5 parts of coal tar pitch 2 and 52.5 parts of coal tar pitch 7 into the mixing reactor, raise the temperature in the mixing reactor to 100°C to soften the coal tar pitch; then 30 parts of coking solvent oil, and raise the temperature in the reactor Mix at 250°C for 2.5h.
[0041] The quality index of the prepared coal tar pitch mixed asphalt is as follows:
[0042]
[0043] The initial boiling point of the coking solvent oil used in this example is 257°C, the final boiling point is 418°C, and the distillate before 400°C accounts for 90.6%.
PUM
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