Integrated device for preparing epoxidized natural rubber and method and application thereof
A technology of natural rubber and epoxidation, applied in the chemical industry, sustainable manufacturing/processing, climate sustainability, etc., can solve the problems of temperature control, high cost of corrosion resistance, etc., to solve the problem of strong corrosion of equipment, The effect of fine temperature control and simplified production process
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[0035] The integrated device for preparing epoxidized natural rubber used in the embodiment of the present invention is specifically as follows figure 1 shown. The drying integrated device for preparing epoxidized natural rubber according to the present invention comprises a reaction tank 1 and a multi-module twin-screw extruder; the multi-module twin-screw extruder is connected with the outlet of the reaction tank.
[0036] The multi-module twin-screw extruder sequentially includes a steam coagulation section 2, a water washing section 3 and a drying section 4 in order of feeding.
[0037]The steam solidification section includes a feed port 8, a steam inlet 9 and a flocculation screw module. The specific design of the flocculation screw module is that the screw and barrel gap is 0.35mm, the screw gap is 1.5mm; the screw length is 1.5m; the The washing section includes a water inlet 10 and a washing screw module. The specific design of the washing screw module is that the cl...
Embodiment 1
[0043] When in use, first add 300kg of material to the reaction tank 1 of the device of the present invention, pass circulating water at 40°C into the interlayer to heat the material, and turn on the motor to drive the stirring shaft 6 to rotate, under the condition of continuous stirring and rotation. In the interlayer, the circulating water in the interlayer exchanges heat with the material, so that the temperature of the material is gradually increased to the required temperature of 40°C for the reaction and maintained at ±3°C. The reaction time was set to 6 h to prepare epoxidized natural rubber with an epoxy degree of 25%. After reaching the set reaction time, add a neutralizer to terminate the reaction, and then discharge the material into the steam solidification section 2. The steam pressure in the steam solidification section is 0.5MPa, the steam feed rate is 30Kg / h, and the steam temperature is 120 ℃. The high-temperature steam entering from the steam inlet 9 directl...
Embodiment 2
[0045] When in use, first add 300kg of material to the reaction tank 1 of the device of the present invention, pass circulating water at 40°C into the interlayer to heat the material, and turn on the motor to drive the stirring shaft 6 to rotate, under the condition of continuous stirring and rotation. In the interlayer, the circulating water in the interlayer exchanges heat with the material, so that the temperature of the material is gradually increased to the required temperature of 40°C for the reaction and maintained at ±3°C. The reaction time was set to 12h to prepare epoxidized natural rubber with an epoxy degree of 50%. After reaching the set reaction time, add neutralizer to terminate the reaction and discharge the material into the second steam flocculation section 2. The steam pressure in the steam coagulation section is 0.5MPa, the steam feed rate is 30Kg / h, and the steam temperature is 120℃ , using the high-temperature steam entering from the steam inlet 9 to dire...
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