Oximation of KA oil by-product

摘要

The present disclosure provides methods for separating ketones and alcohols. In one embodiment, the methods and compositions disclosed are useful in separating cyclohexanol from cyclohexanone. In one embodiment, cyclohexanone is converted to its corresponding oxime by treating the cyclohexanone with hydroxylamine. The resulting cyclohexanone oxime is then separated from the cyclohexanol, providing streams of cyclohexanol and cyclohexanone oxime.

主权项

1. A process for separating an alcohol from a ketone/alcohol mixture comprising the steps of:
reacting phenol with hydrogen to produce a first stream comprising cyclohexanone and cyclohexanol, wherein the first stream has a ratio of the weight of cyclohexanone to the weight of cyclohexanol from 0.5:1 to 1.25:1; adding a reagent to the first stream, wherein the reagent is selected from hydroxylamine free base and a salt of hydroxylamine, said reagent reacting with cyclohexanone to form cyclohexanone oxime; and separating the cyclohexanone oxime and the cyclohexanol.