Li Ruiduan, Dai Chuanbo
2015
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Guangdong Chemical Industry
Abstract
Bis(2,4-di-tert-butyl-phenyl) pentaerythritol diphosphitc(antioxidant 626) was synthesized with pentaerythritol, 2,4-di-tert-butylphenol and Phosphorus trichloride. The process was achieved with ethyl alcohol as solvent and the catalyst by one step. The process used ethyl alcohol as solvent avoided toxic organic solvent such as benzene, toluene. The process was non-toxic and environmentally friendly. The product satisfied the quality standards of antioxidant 626.