Preparation and Research of Isotridecanol Polyoxyethylene Ether(5)
Isotridecanol polyoxyethylene ether(5)is a domestic environmental friendly non-ionic surfactant.In view of the problems of broad distribution and bad odor of the industrial products,an industrial production route that uses metallic modified catalysts to prepare isotridecanol polyoxyethylene ether(5)with narrow molecule weight distribution and low-odor was proposed,and the catalyst metal load,catalyst dosage,reaction temperature,catalyst life were optimized.Under the condition that the metal load of catalyst was Ca 4.0％,Mg 3.0％,Zn 2.5％,the amount of catalyst was 1.5％,and the reaction temperature was 160 ℃,products with the molecular weight distributed at 1.143～1.148 and the isotridecanol residue below 0.40％could be prepared.Compared with similar imported products,the product has lower surface tension and is more suitable for the development of downstream application market.
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