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发明公开
CN107827778A 一种连续精馏精制氰乙酸酯化物装置及其工艺 审中-实审 质押

一种连续精馏精制氰乙酸酯化物装置及其工艺
摘要：
本发明公开一种连续精馏精制氰乙酸酯化物装置及其工艺，装置中氰乙酸酯化物产品塔中下部连接到回收釜，氰乙酸酯化物产品塔顶部经氰乙酸酯化物产品塔顶冷凝器和氰乙酸酯化物产品塔顶捕集器连接有氰乙酸酯化物产品塔顶回流罐，氰乙酸酯化物产品塔顶回流罐经氰乙酸酯化物产品塔顶回流泵连接氰乙酸酯化物产品塔中上部；丙二酸酯化物二级精馏塔顶部经丙二酸酯化物二级精馏塔顶冷凝器和丙二酸酯化物二级精馏塔捕集器连接有丙二酸酯化物二级精馏塔顶回流罐，丙二酸酯化物二级精馏塔顶回流罐经丙二酸酯化物二级精馏塔顶回流泵连接到丙二酸酯化物二级精馏塔中上部。本发明生产过程连续进行，设备利用率高，生产能力大，生产效率高，人员劳动强度低。
摘要（英）：

The invention discloses a device for continuously rectifying and refining cyanoacetate and a technology thereof. In the device, the lower middle part of a cyanoacetate product tower is connected to arecycling kettle; the top of the cyanoacetate product tower is connected with a cyanoacetate product tower top reflowing tank through a cyanoacetate product tower top condenser and a cyanoacetate product tower top catcher; the cyanoacetate product tower top reflowing tank is connected with the upper middle part of the cyanoacetate product tower through a cyanoacetate product tower top reflowing pump; the top of a malonate second-grade rectifying tower is connected with a malonate second-grade rectifying tower top reflowing tank through a malonate second-grade rectifying tower top condenser anda malonate second-grade rectifying tower catcher; the malonate second-grade rectifying tower top reflowing tank is connected to the upper middle part of the malonate second-grade rectifying tower through a malonate second-grade rectifying tower top reflowing pump. The device disclosed by the invention has the advantages that a production process is continuously carried out, the utilization rate of equipment is high, the production capability is great, the production efficiency is high and the labor intensity of workers is low.

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