Technological method for preparing novel asphalt modifier with O3 as raw material
A kind of technology of asphalt modifier and process method, which is applied in the field of chemical industry, which can solve the problems of low yield, complicated process, and large loss of raw materials, and achieve the effects of easy control of the process, uniform reaction, and reduced energy consumption
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Embodiment 1
[0024] Example 1, a kind of O 3 A process for preparing a novel asphalt modifier for raw materials, comprising the following steps:
[0025] 1) Add 300kg of low-molecular-weight, high-density polyethylene powder, 600kg of deionized water, 0.6kg of polymerization inhibitor, 1.5kg of metallocene catalyst, and 0.6kg of surfactant into a high-temperature pressure reactor, and stir for 30 minutes to make a suspension turbidity. liquid.
[0026] 2) Heating the suspension liquid, and at the same time adding O 3 Pass it into the suspension, control the heating rate at 1.0°C / min, keep stirring, and the speed is 300r / min;
[0027] 3) Pressurize and heat up, and the pressure reaches 5.06×10 5 ~1.013×10 6 When the pressure is high, stop the pressurization, raise the temperature to 120°C, and hold the temperature for 36 hours. During this period, keep stirring and continue to feed O 3 ;
[0028] 4) Cooling and filtering: after the holding period is over, stop feeding O 3 Gas, natura...
Embodiment 2
[0033] Example 2, a kind of O 3 A process for preparing a novel asphalt modifier for raw materials, comprising the following steps:
[0034] 1) Add 300kg of low-molecular weight, high-density polyethylene powder, 600kg of deionized water, 4.5kg of polymerization inhibitor, 6.0kg of metallocene catalyst, and 4.5kg of surfactant into the high-temperature pressure reactor, stir for 30min, and make a suspension Cloudy liquid.
[0035] 2) Heating the suspended turbid liquid, and adding O 3 Pass it into the suspension, control the heating rate at 1.5°C / min, keep stirring, and the speed is 500r / min;
[0036] 3) Pressurize and heat up, and the pressure reaches 5.06×10 5 ~1.013×10 6 When the pressure is high, stop the pressurization, raise the temperature to 120°C, and hold the temperature for 36 hours, during which time the stirring is continued and O 3 ;
[0037] 4) Cooling and filtering: after the holding period is over, stop feeding O 3 Gas, naturally cool down to room tempe...
Embodiment 3
[0042] Example 3, a kind of O 3 A process for preparing a novel asphalt modifier for raw materials, comprising the following steps:
[0043] 1) Add 300kg of low-molecular weight, high-density polyethylene powder, 600kg of deionized water, 2.4kg of polymerization inhibitor, 2.4kg of metallocene catalyst, 2.4kg of surfactant, etc. into the high-temperature pressure reactor, stir for 30min, and make a suspension Cloudy liquid.
[0044] 2) Heating the suspension and continuously feeding O 3 For gas, the temperature rise rate is controlled at 1.5°C / min, while stirring continuously, and the speed is 500r / min;
[0045]3) Pressurize and heat up, and the pressure reaches 5.06×10 5 ~1.013×10 6 When the pressure is high, stop the pressurization, raise the temperature to 120°C, and hold the temperature for 48 hours. During this period, keep stirring and pass O 3 ;
[0046] 4) Cooling and filtering: After the heat preservation and stirring period is over, stop feeding O 3 Gas, natur...
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