PHENOL RESIN TREATMENT IMPROVEMENT

摘要

Methods and systems for purifying phenol. The method can include contacting a feed that includes phenol and an aldehyde containing compound with a first ion exchange material to produce a first treated product. The first treated product can have a pH that is less than a pH of the feed. The first treated product can contain less of the aldehyde containing compound than the feed. The first treated product can be contacted with a second ion exchange material to produce a second treated product. The second treated product can have a pH that is greater than the pH of the first treated product. Each of the first ion exchange material and the second ion exchange material can be a solid, a semi-solid, or a combination thereof.

主权项

1. A method for purifying phenol, comprising:
contacting a feed comprising phenol and an aldehyde containing compound with a first ion exchange material to produce a first treated product, wherein the first treated product has a pH that is less than a pH of the feed, and wherein the first treated product contains less of the aldehyde containing compound than the feed; and contacting the first treated product with a second ion exchange material to produce a second treated product, wherein the second treated product has a pH that is greater than the pH of the first treated product, and wherein each of the first ion exchange material and the second ion exchange material is a solid, a semi-solid, or a combination thereof.