Method of producing acetone with low aldehydes content

A system for recovery of purified acetone, the system comprising:

• a crude acetone column (CAC) configured to separate products of a cumene hydroperoxide cleavage reaction into an overhead fraction comprising crude acetone and a bottom fraction comprising phenol,
• an acetone purification column (APC) configured to:
• receive the crude acetone at a first feed point in the APC,
• separate the crude acetone into purified acetone and residual heavy compounds, and
• provide the purified acetone at a first side draw located above the first feed point, and
• a caustic treating vessel configured to:
• receive a portion of the crude acetone drawn from a second side draw of the APC located above the first feed point and below the first side draw of the APC,
• receive a feed of aqueous alkaline solution,
• mix the portion of the crude acetone and the aqueous alkaline solution, and
• return contents of the caustic treating vessel to a second feed point of the APC, wherein the second feed point is located between the first feed point and the second side draw.