| 摘要 |
<p>The invention relates to a method for purifying 1,4-butynediol, in which 1,4-butynediol is compressed to 50 to 1500 bar and is expanded, one waits for phase separation to end following the expansion process, and the bottom phase is eliminated. Also disclosed is a method for hydrogenating 1,4-butynediol into 1,4-butenediol and 1,4-butanediol with the aid of the purified 1,4-butynediol.</p> |
