Device and method for removing moisture and heteroacids in acetic acid
A technology of phase separation device and acetic acid aqueous solution, which is applied in chemical instruments and methods, separation/purification of carboxylic acid compounds, preparation of carboxylate, etc. It can solve the problems of complex removal, incomplete removal of moisture and impurity acids, etc. Achieve the effects of increasing the content of acetic acid, reducing the limitation of equipment material selection, and increasing the yield
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[0022] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.
[0023] A device for removing moisture and impurity acids in acetic acid, comprising a reaction kettle 1, a scraped film evaporator 2, an azeotropic rectification tower 3, an entrainer recovery tower 7, and the first two sides of the entrainer recovery tower 7 A phase separation device 6 and the second phase separation device 10, the reaction kettle 1, the scraped film evaporator 2, the azeotropic rectification tower 3, the first phase separation device 6, the entrainer recovery tower 7 and the second separation The phase devices 10 are connected successively, the bottom of the second phase separation device 10 is connected with the top of the entrainer recovery tower 7, and the side wall of the second phase separatio...
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