Novel method for producing (meth)acrylic acid and (meth)acrylic esters
AssigneeShanghai Hua Yi Acrylic Acid Co., Ltd.
InventorsJingming SHAO, Jun YIN, Shuju LIU, Xiaodong CHU, Shengxian XU
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Abstract
There is provided a method for rectifying a vinyl compound liquor, comprising the steps of: a) providing a rectification column operated at a temperature and pressure; b) feeding the vinyl compound liquor to be rectified into the rectification column; characterized in that the pressure of said rectification column and the temperature of said fed vinyl compound liquor are controlled such that the temperature of said fed vinyl compound liquor is in the range of from its bubble point at the pressure of said rectification column to 10° C. lower than said bubble point.
Claims10
A method for rectifying a vinyl compound liquor, comprising:
- a) providing a rectification column operated at a certain temperature and pressure;
- b) feeding the vinyl compound liquor into the rectification column;
- characterized in that
- the pressure of said rectification column and the temperature of said fed vinyl compound liquor are controlled such that the temperature of said fed vinyl compound liquor is in the range of from its bubble point at the pressure of said rectification column to 10° C. lower than said bubble point.
Dependencies are inferred from the claim text.