Production method for epoxy chloropropane
A technology of epichlorohydrin and its production method, which is applied in the direction of sustainable manufacturing/processing, chemical industry, climate sustainability, etc. It can solve the problems of difficult control of reaction temperature, low conversion rate and selectivity, and overcome the problem of heat extraction Untimely, good technical effect, effect of increasing conversion rate and selectivity
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Embodiment 1
[0015] according to figure 1 As shown, the catalytic distillation tower operates under normal pressure, wherein the number of theoretical plates in the rectification section is 10, the number of theoretical plates in the stripping section is 15, the separation efficiency of the catalytic reaction section is equivalent to 18 theoretical plates, and the catalyst is SiO 2 / TiO 2 Titanium-silicon molecular sieve with a molar ratio of 80, 30% by weight of hydrogen peroxide and methanol mixture (methanol content 70% by weight) enters the first theoretical plate (counting from top to bottom, the same below) with a flow rate of 1 g / min, and allyl chloride is The flow rate of 2 g / min enters from the bottom of the catalytic reaction section, the reflux ratio is 3, the temperature range of the catalytic reaction section under effective reaction conditions is 38-43 ° C, and the distillate is distilled at a flow rate of 2.5 g / min at the top of the tower. The distillate and the raw material...
Embodiment 2
[0017] according to figure 1 As shown, the catalytic distillation tower operates under normal pressure, wherein the number of theoretical plates in the rectification section is 30, the number of theoretical plates in the stripping section is 30, the separation efficiency of the catalytic reaction section is equivalent to 50 theoretical plates, and the catalyst is SiO 2 / TiO 2 Titanium-silicon molecular sieve with a molar ratio of 180, 50% by weight of hydrogen peroxide and acetone mixture (80% by weight of acetone content) enters the first theoretical plate with a flow rate of 1 g / min, and allyl chloride enters the first theoretical plate with a flow rate of 12 g / min from the bottom of the catalytic reaction section Enter, the reflux ratio is 1, the temperature range of the catalytic reaction section under effective reaction conditions is 35 ~ 41 ° C, the top of the tower is distilled at a flow rate of 12.2 g / min, and the distillate is mixed with the raw material chloropropene...
Embodiment 3
[0019] according to figure 1 As shown, the catalytic distillation tower operates under normal pressure, wherein the number of theoretical plates in the rectification section is 5, the number of theoretical plates in the stripping section is 5, the separation efficiency of the catalytic reaction section is equivalent to the number of theoretical plates being 5, and the catalyst is SiO 2 / TiO 2 Titanium-silicon molecular sieve with a mol ratio of 20, 2% by weight of hydrogen peroxide and ethyl acetate mixture (50% by weight of ethyl acetate content) enters the first theoretical plate with a flow of 1 g / min, and allyl chloride flows from the first theoretical plate with a flow of 5 g / min The bottom of the catalytic reaction section enters, the reflux ratio is 10, the temperature range of the catalytic reaction section under effective reaction conditions is 42-46°C, the top of the tower is distilled at a flow rate of 4.8 g / min, and the distillate is mixed with the raw material chl...
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