The method for continuous production of 3-octanoylthiopropyltriethoxysilane by tower organic method
A technology of octanoylthiopropyltriethoxysilane and mercaptopropyltriethoxysilane is applied in the field of producing 3-octanoylthiopropyltriethoxysilane to improve compatibility, The effect of reducing the possibility of hydrolysis and simplifying the operation
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specific Embodiment approach 1
[0017] Embodiment one: the method for the continuous production of 3-octanoylthiopropyltriethoxysilane by tower organic method in the present embodiment is carried out according to the following steps:
[0018] Insert the feed pipe into the raw material barrel, then open the feed valve of the metering tank, pump 715kg of 3-mercaptopropyltrialkoxysilane and 512kg of octanoyl chloride into the metering tank respectively, close the valve after pumping, and use N 2 Evacuate the two metering tanks, turn on the circulation pump for circulation, keep the vacuum degree in the tower reactor at -0.095MPa~-0.1MPa, open the condenser on the top of the tower reactor, and use the metering pump to pump octanoyl chloride into and The flash tank connected to the tower reactor, octanoyl chloride is vaporized in the flash tank, and sent to the tower reactor from the bottom in the form of vapor, the flow rate of octanoyl chloride is controlled at 350-360L / h, when the temperature in the tower excee...
specific Embodiment approach 2
[0019] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the vacuum degree inside the tower reactor is maintained at -0.096MPa~-0.098MPa. Others are the same as in the first embodiment.
specific Embodiment approach 3
[0020] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the octanoyl chloride flow rate is controlled at 352-358 L / h. Others are the same as in the first or second embodiment.
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