AlCl_3-正丁醚络合催化剂催化1-癸烯齐聚反应的研究

Study on 1-decene oligomerication by catalytic system of aluminium-chloride-butyl ether-complex

聚α-烯烃是高品质的润滑油基础油。使用AlCl3-正丁醚络合催化剂催化1-癸烯齐聚,合成低粘度的PAO,考察了催化剂的质量分数、AlCl3与正丁醚的摩尔比、反应温度、反应时间等工艺条件对PAO收率的影响。结果表明,1-癸烯齐聚合成PAO的最佳工艺条件是:AlCl3的摩尔分数为5%,反应温度为30℃,反应时间为4 h。在最佳工艺条件下,可以合成100℃粘度为8.99 mm2/s,粘度指数为170的聚烯烃合成油PAO,收率为87%。具有粘度低、粘度指数高的显著特点,是高质量的聚α-烯烃合成油。

Poly-alpha-olefins are high quality lubricants base oil.The oligomerization of 1-decenes had been studied with aluminium chloride-butyl ether complex as catalyst,and the low viscosity PAO was synthesized.The effects of various kinds of technological conditions,such as mass fractions of the catalyst,molar ratios of the AlCl3 / butyl ether,reaction temperature and reaction time on the yields of the PAO were studied.The best technological conditions of synthetic lubricant with 1-decene as raw materials were that AlCl3 molar fraction 5%,n（AlCl3） ∶ n（butyl ether）=2 ∶ 1,reaction temperature 30 ℃,reaction time 4 h.Under the optimum conditions the viscosity was 8.99 mm2/s and 48.16 mm2/s at 100 ℃ and 40 ℃,respectively.The viscosity index was 170 through calculation,which was a low viscosity and high viscosity index of poly-alpha-olefin synthetic lubricants.