Nitrile rubber production process
A production process and technology of nitrile rubber, applied in the field of nitrile rubber production technology, can solve the problems of fluctuation of initiator addition, activator failure, increase of vulcanization time, etc., and achieve easy control of addition, stable production process, mixing effect improvement effect
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[0039] Example 1
[0040] One, aggregation
[0041] The raw materials acrylonitrile 1, butadiene 2, desalted and deoxygenated water 3, concentrated water phase 4 and molecular weight regulator 5 (TDM, tertiary dodecanethiol) are transported to the polymerization station together, and they are merged at the header 6 of the polymerization station. The combined material is mixed through the pipeline pump 7 and the pipeline mixer 8 in turn (the material also has a pre-emulsification effect when mixing), and is cooled by the heat exchange of the ammonia cooling heat exchanger 9. The cooled mixture material and the initiator emulsion 10 It enters nine reactors 13 together with the activator solution 11 to form latex for polymerization. The latex output from the fourth reactor and the molecular weight regulator emulsion 27 enter the fifth reactor together. After the polymerization conversion rate reaches 70%±5, the ninth The latex from the reaction tank 13 and the terminating defoamer so...
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[0051] Example 2
[0052] One, aggregation
[0053] The raw materials acrylonitrile 1, butadiene 2, desalted and deoxygenated water 3, concentrated water phase 4 and molecular weight regulator 5 (TDM, tertiary dodecanethiol) are transported to the polymerization station together, and they are merged at the header 6 of the polymerization station. The confluent mixture material passes through the pipeline pump 7 and the pipeline mixer 8 for material mixing, and is cooled by the heat exchange of the ammonia cooling heat exchanger 9. The cooled mixture material, together with the initiator emulsion 10 and the activator solution 11, enters nine successively The reaction tank 13 polymerizes to generate latex. The latex output from the fourth reaction tank and the molecular weight regulator emulsion 27 enter the fifth reaction tank together. After the polymerization conversion rate reaches 70%±5, the latex from the ninth reaction tank 13 and the termination defoaming The agent solution 1...
Example Embodiment
[0063] Example 3
[0064] One, aggregation
[0065] The raw materials acrylonitrile 1, butadiene 2, desalted and deoxygenated water 3, concentrated water phase 4 and molecular weight regulator 5 (TDM, tertiary dodecanethiol) are transported to the polymerization station together, and they are merged at the header 6 of the polymerization station. The confluent mixture material passes through the pipeline pump 7 and the pipeline mixer 8 for material mixing, and is cooled by the heat exchange of the ammonia cooling heat exchanger 9. The cooled mixture material, together with the initiator emulsion 10 and the activator solution 11, enters nine successively The reaction tank 13 polymerizes to generate latex. The latex output from the fourth reaction tank and the molecular weight regulator emulsion 27 enter the fifth reaction tank together. After the polymerization conversion rate reaches 70%±5, the latex from the ninth reaction tank 13 and the termination defoaming The agent solution 1...
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