A kind of purification method of butyl acrylate crude product
A technology of butyl acrylate and a purification method, which is applied in the field of purification of crude butyl acrylate products, can solve the problems of difficulty in large-scale industrial production, high price, complicated process, etc., and achieve the goals of shortening the washing process time, reducing consumption and saving The effect of using
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[0026] Embodiment 1 A kind of purification method of butyl acrylate crude product, its process flow diagram is as figure 1 As shown, it specifically includes the following steps:
[0027] 1) extraction
[0028] With desalinated water as extraction agent, the crude product of butyl acrylate enters the extraction tower C1 with an average flow rate of 10000kg / h and carries out continuous countercurrent extraction in the extraction tower C1; the organic acid catalyst in the crude product of butyl acrylate enters the water phase, and The desalinated water is countercurrently contacted to recover the organic acid catalyst in the water phase, and the recovered organic acid catalyst is sent back to the reactor from the bottom of the extraction tower C1; butyl acrylate and by-products enter the raffinate organic phase, and are collected from the top of the extraction tower C1 Outflow, continuously enter the static mixer M1;
[0029] The by-products in the described butyl acrylate cru...
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