| 摘要 |
To provide a method for producing a high purity fluorinated alkyl ether having a very low content of an impurity having an unsaturated bond at the industrial scale. A method for treating a fluorinated alkyl ether, which comprises bringing a reaction crude liquid containing a fluorinated alkyl ether obtained by reacting a fluorinated alkyl alcohol with a fluoroolefin in the presence of a basic catalyst, and an unsaturated impurity having an unsaturated bond formed as a by-product in the above reaction, into contact with a chlorine gas to convert the unsaturated impurity to a chlorine-added product, thereby to lower the content of the unsaturated impurity.
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