Method and device for preparing high-boiling silicon oil
A technology for high-boiling silicone oil and high-boiling substance, which is applied in the field of preparing high-boiling silicone oil, can solve the problems of limited industrialization and application, high viscosity of high-boiling silicone oil, difficult filtration operation, etc., so as to increase added value, reduce dosage and improve production. The effect of efficiency
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[0021] Example 1
[0022] Add 100 parts by weight of high boilers in the organic silicon slurry to the enamel reaction kettle, start the reaction kettle to stir, and add ethanol and water mixed solvent (ethanol:water (V / V)=1:0.1) to the kettle dropwise at room temperature 60 Parts by weight, control the reaction speed, the hydrogen chloride gas produced by the reaction is sent to the water washing tower for absorption and treatment; after the ethanol water solvent is added dropwise, raise the temperature of the reaction kettle to 75°C, open the compressed air valve at the bottom of the kettle, control the air flow rate, and continue the reaction 2h; The liquid after the complete reaction is transported to the high level tank of the acid separation by a magnetic pump to stand for stratification, and the crude acidic silicone oil and glycolic acid solution are obtained; the glycolic acid solution is injected into the ethanol distillation tank for purification and then reacts ...
Example Embodiment
[0023] Example 2:
[0024] Other implementation conditions are the same as 1. When ethanol and water are mixed solvents (ethanol: water (V / V) = 1:0.3), the viscosity of the obtained high boiling silicone oil (25°C, mm 2 / s): 42.36, Refractive index (25°C): 1.4456.
Example Embodiment
[0025] Example 3:
[0026] Other implementation conditions are the same as 1. When ethanol and water are mixed solvents (ethanol: water (V / V) = 1:0.01), the viscosity of the obtained high-boiling silicone oil (25°C, mm 2 / s): 19.47, Refractive index (25°C): 1.4489.
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