Method capable of increasing content and yield of gamma-chloropropyltriethoxysilane simultaneously
A technology of chloropropyltriethoxysilane and content, which is applied in the field of increasing the content and yield of γ-chloropropyltriethoxysilane at the same time, which can solve the high requirements of process control and automation level and the difficulty of unit operation technology , large investment in production equipment and other issues, to achieve the effects of short heating time, reduced construction investment, and fast distillation speed
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Embodiment 1
[0023] 1 The esterification reaction is carried out in a 2000L kettle
[0024] (1) Take by weighing 1100 grams of lithium chloride, 800 grams of 4-dimethylaminopyridine, and 1000 grams of aliphatic alkyl dimethyl tertiary amines, respectively add in 4500 milliliters of absolute ethanol, and fully mix them in a glass container, Sealed and ready for use.
[0025] (2) Measure 800Kg gamma-chloropropyl trichlorosilane into the reactor; measure 2800 ml of absolute ethanol solution containing lithium chloride into the reactor, measure 3000 ml of anhydrous ethanol containing 4-dimethylaminopyridine The ethanol solution is added to the esterification kettle.
[0026] (3) 650Kg absolute ethanol is measured for subsequent use.
[0027] (4) Add absolute ethanol to the esterification kettle, control the reaction temperature at 45-50°C, pay close attention to the working conditions of the hydrogen chloride recovery system, adjust the flow rate, temperature and vacuum of the system in time...
Embodiment 2
[0041] 1 The esterification reaction is carried out in a 2000L kettle
[0042] (1) Weigh 1250 grams of lithium chloride, 750 grams of 4-dimethylaminopyridine, and 1300 grams of aliphatic alkyl dimethyl tertiary amines respectively, add them to 4000 milliliters of absolute ethanol respectively, and place them on glass, glass-lined or PVC material In a container, mix well and seal well for later use.
[0043] (2) Measure 850Kg gamma-chloropropyl trichlorosilane into the reactor; measure 2900 ml of absolute ethanol containing lithium chloride into the reactor, measure 3100 ml of anhydrous ethanol containing 4-dimethylaminopyridine The ethanol solution is added to the esterification kettle.
[0044] (3) Pump the measured 675Kg absolute ethanol into the head tank.
[0045] (4) Add absolute ethanol to the esterification kettle, control the reaction temperature at 45-48°C, pay close attention to the working conditions of the hydrogen chloride recovery system, adjust the flow rate, ...
Embodiment 3
[0058] 1 The esterification reaction is carried out in a 2000L kettle
[0059] (1) Weigh 1400 grams of lithium chloride, 850 grams of 4-dimethylaminopyridine, and 1300 grams of fatty alkyl dimethyl tertiary amine respectively, add them to 4000 milliliters of absolute ethanol respectively, and place them on glass, glass-lined or PVC material In a container, mix well and seal well for later use.
[0060] (2) Measure 900Kg γ-chloropropyl trichlorosilane into the reactor; measure 2950 milliliters of absolute ethanol containing lithium chloride and add it to the reactor, measure 3300 milliliters of anhydrous ethanol containing 4-dimethylaminopyridine The ethanol solution was added to the reaction kettle.
[0061] (3) Pump the measured 740Kg absolute ethanol into the head tank.
[0062] (4) Add absolute ethanol to the esterification kettle, control the reaction temperature at 45-50°C, pay close attention to the working conditions of the hydrogen chloride recovery system, adjust th...
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