Stripping method
AssigneeHanwha Chemical Corporation
InventorsKi Taeg JUNG, Hyo Suk KIM, Young Jo KIM, Kyong Jun YOON, Kee Do HAN
Life of this patent
Estimating the term…
Abstract
The present invention relates to a stripping method capable of recovering, by an environmentally friendly method, a high-purity ester-based compound without concern over the oxidation of an ester-based compound from a mixture containing the ester-based compound. The stripping method has advantages of generating no wastewater, enabling equipment costs to be reduced by simplifying the process, removing concern over the oxidation of an ester-based compound during the process, and enabling the reuse of the components recovered in the process.
Claims10
A stripping method comprising:
- contacting a mixture including a cyclohexane dicarboxylic acid ester-based compound with an inert gas under a relative pressure of −1.0 to −0.5 barg to remove a volatile component from the mixture, thereby obtaining the cyclohexane dicarboxylic acid ester-based compound.
Dependencies are inferred from the claim text.