A Novel and Efficient Method for Purification of Tert-Butylhydroquinone

作者：Ye Liyi; Liu Jianshe; Zhang Chen; Xie Yaqiang; Tu Song^*

来源：Separation Science and Technology (Philadelphia), 2015, 50(6): 820-823.

DOI：10.1080/01496395.2014.965258

• antioxidant
• tert-butylhydroquinone
• purification
• formic acid

Tert-butylhydroquinone is a high quality edible-oil antioxidant. tert-Butylhydroquinone has many advantages such as high activity, low mammalian toxicity, and high thermal stability. This article proposes a novel and efficient method for the purification of tert-Butylhydroquinone. The purification has two steps. A mixture of hydroquinone (wt%: 16.4%), tert-Butylhydroquinone (wt%: 68.1%), and 2, 5-ditert-butylhydroquinone (wt%: 15.5%) is washed with water to separate hydroquinone. A highly-purified tert-Butylhydroquinone (purity: > 97.0%),is then obtained by separating 2, 5-ditert-butylhydroquinone from crude tert-Butylhydroquinone using formic acid as solvent in the yield of 96.3%.

• 出版日期2015-4-13
• 单位厦门大学