METHOD OF PURIFYING CRUDE ACETONE STREAM

摘要

The present invention relates to a method of treating a crude acetone stream. The method generally includes treating a crude acetone stream which has acetone and at least one low-boiling impurity with a catalyst to form a treated acetone stream that has acetone and at least one higher-boiling impurity and then distilling the treated acetone stream to remove at least a portion of the higher-boiling impurity to produce a purified acetone stream. This is particularly helpful in processes where a more pure acetone is desired, including a process for making purified isopropanol.