A REMOVING UNIT OF METHANOL AND ACETONE AND MANUFACTURING SYSTEM OF PHENOL AND BISPHENOL A COMPRISING THE SAME

摘要

The present invention relates to a methanol and acetone removal unit, and is provided in a system including a production system of phenol including a decomposition reaction unit and a purification unit, and a production system of bisphenol A including a reaction unit and a concentration unit. The removal unit comprises a removal column; A supply unit provided at the stop of the removal column; A tower purge section in which methanol and acetone are removed; And a bottom bottom recirculation unit recycled to the refining unit, wherein the supply unit includes a refining unit discharge unit including methanol, acetone and water, and a concentrated unit discharge unit including phenol, acetone, and water. The removal unit can be included in the production system of phenol and bisphenol A, in which case the productivity of bisphenol A can be improved and the lifetime of the catalyst in the reactor can be improved.