A kind of synthetic rubber accelerator system and process
A technology of synthetic rubber and accelerator, applied in the system field of catalyzing oxygen oxidation method to synthesize rubber accelerator DPG, can solve problems such as insufficient contact reaction, and achieve the effects of improving three-phase mass transfer efficiency, shortening reaction time, and reducing reaction time
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Embodiment 1
[0048] This embodiment provides a synthetic rubber accelerator system, such as figure 1 As shown, it includes: reactor 1; mixing circulation pump 4, which communicates with the discharge port of reactor 1; atomization injection device 8, and the spray outlet of atomization injection device 8 extends into the reactor 1, and atomization injection The feed port of the device 8 communicates with the discharge port of the mixing circulation pump 4; the ventilation pipe communicates with the atomizing injection device 8, and the tube heat exchanger 7 between the mixing circulation pump and the atomizing injection device is on the reactor 1 Set the pressure gauge P1 and the thermometer T1, the upper part of the wall of the reactor 1 has a material inlet valve 11, an exhaust valve 12 and an oxygen circulation valve 10, and the bottom circulation pipeline is provided with a circulation material outlet valve 2, through the circulation pipeline and the mixed circulation pump 4. The exter...
Embodiment 2
[0054] The present embodiment provides a kind of synthetic rubber accelerator system, wherein, as figure 2 As shown, the baffle includes a first baffle part 832 in contact with the fluid and a second baffle part 833 in contact with the gas. The included angle between the baffle parts 832 is 155°-165°, and the included angle prevents the circulating material in the injection part of the inner tube from flowing back into the injection part of the outer tube after passing through the baffle.
[0055] The stopper is also set such that the first stopper part 832 and the second stopper part 833 are ellipsoid shaped stoppers, and the protruding part extends into the inner tube injection part and connects with the inner wall of the inner tube injection part. The large contact area and the reduction of the initial contact area with the circulating material are conducive to buffering the impact of the circulating material on the baffle.
[0056] By using the systems of Embodiment 1 an...
Embodiment 3
[0069] A kind of technique utilizing the synthetic rubber accelerator DPG of above-mentioned system, comprises the following steps:
[0070] S1. Open the feed valve, vent the valve, and feed 100g of vulcanization accelerator, 1800g of ammonia and 5g of catalyst into the reactor to form a reaction raw material system, and the concentration of ammonia is 15-27%;
[0071] S2. Close the feed valve and vent valve, open the circulating material outlet valve and the circulating pump outlet valve, start the mixed circulating pump, open the oxygen circulating valve, adjust the circulating water valve on the tube heat exchanger, and keep the thermometer in the reactor At 30-35°C;
[0072] S3. Adjust the oxygen inlet valve and the oxygen circulation valve to maintain the pressure in the reactor at 0.10-0.12Mpa;
[0073] When the pressure is close to 0.12Mpa, close the oxygen inlet valve and increase the oxygen circulation valve to make the pressure gauge display at 0.1-0.12Mpa;
[0074...
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Abstract
Description
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