A kind of refining purification method of butanone oxime
A purification method and technology of butanone oxime are applied in the field of refining and purification of butanone oxime, and can solve the problems of carbonization and coking of oxime products, easy char formation and blockage of pipelines, etc.
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Embodiment 1
[0025] A refined purification method of butanone oxime, the scheme of which is:
[0026] The 100kg toluene- butanone oxime solution into the organic-inorganic separator, through the centrifuge at a speed of 8000r / min to separate the inorganic phase into the toluene - oxime tank, by the pump pump into the rectification system for separation; the said is a secondary rectification system, toluene - butanone oxime solution first into the middle of the first rectification tower, the internal temperature of the first rectification tower is 120 ° C, the top of the tower reflux temperature is 35 ° C, most of the toluene distilled out of the condensation and reflux to the toluene tank, Butanone oxime crude product from the bottom of the first distillation column into the middle of the second rectification column, the middle temperature of the second rectification column is 115 ° C, toluene distilled out of the condensation reflux to the toluene tank, butanone oxime crude product from the...
Embodiment 2
[0037] A refined purification method of butanone oxime, the scheme of which is:
[0038] 200kg of toluene - butanone oxime solution into the organic inorganic separator, through the centrifuge at a speed of 12000r / min to separate the inorganic phase into the toluene - oxime tank, by the pump pump into the rectification system for separation; the second stage rectification system, toluene - butanone oxime solution first into the middle of the first rectification tower, the internal temperature of the first rectification tower is 128 ° C, the top of the tower reflux temperature is 40 ° C, most of the toluene is distilled out of the condensation and reflux to the toluene tank, Butanone oxime crude product from the bottom of the first distillation column into the middle of the second rectification column, the middle temperature of the second rectification column is 120 ° C, toluene distilled out of the condensation reflux to the toluene tank, butanone oxime crude product from the bo...
Embodiment 3
[0047] A refined purification method of butanone oxime, the scheme of which is:
[0048] The 300kg toluene- butanone oxime solution into the organic inorganic separator, through the centrifuge at a speed of 16000r / min to separate the inorganic phase into the toluene - oxime tank, by the pump pump into the rectification system for separation; the said is the secondary rectification system, toluene - butanone oxime solution first into the middle of the first rectification column, the internal temperature of the first rectification tower is 135 ° C, the top of the tower reflux temperature is 45 ° C, most of the toluene is distilled out of the condensation reflux to the toluene tank, Butanone oxime crude product from the bottom of the first distillation column into the middle of the second rectification column, the middle temperature of the second rectification column is 125 ° C, toluene distilled out of the condensation reflux to the toluene tank, butanone oxime crude product from ...
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