The Open Catalysis Journal

2009, 2 : 169-171
Published online 2009 December 31. DOI: 10.2174/1876214X00902010169
Publisher ID: TOCATJ-2-169

Synthesis of Liquid Antioxidant DTBNP Catalyzed by Composite Super Acid

Yu Jinting and Li Zheng
College of General Education, Tianjin Normal University, Tianjin 300387, P.R. China.

ABSTRACT

2,6-Di-tert-butyl-4-nonylphenol(DTBNP) was synthesized from 4-n-nonyl phenol and isobutylene, etc. using self-made composite super acid as catalyst. The appropriate technology conditions are as follows: reaction temperature is 60-80°C, reaction time is 4h, n(4-n-nonyl phenol): n(Isobutylene)= 1: 2 and the amount of catalysts is 0.019% of the quantity of 4-n-nonyl phenol reactant, the yield can reach to 98%.

Keywords:

Liquid antioxidant DTBNP, 4-n-nonyl phenol, isobutylene.