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研究了Ｆｅ（２／３）ｘＮｉ１－ｘＳＯ４－助剂／γ－Ａｌ２Ｏ３催化剂对丙烯叠合反应的催化性能，考察了Ｆｅ与（Ｆｅ＋Ｎｉ）的原子比和ＳＯ４２－与（Ｆｅ＋Ｎｉ）的摩尔比的影响及加入助剂的效果。结果表明，Ｆｅ与（Ｆｅ＋Ｎｉ）的原子比为０．７２和ＳＯ４２－与（Ｆｅ＋Ｎｉ）的摩尔比为１．４时，催化剂活性和Ｃ１２＝＋选择性最高；助剂Ｐ２Ｏ５有明显的促进作用。催化剂最佳组成为２３．１％Ｆｅ０．５３Ｎｉ０．２１ＳＯ４－５．７５％Ｐ２Ｏ５／γ－Ａｌ２Ｏ３。采用该催化剂，在Ｐ＝３．０ＭＰａ，Ｔ＝６０～７０℃，ＬＨＳＶ＝１～３ｈ－１的条件下，丙烯转化率为９７％～８７％，Ｃ１２＝＋选择性为６６％～５２％。通过ＮａＯＨ对催化剂的中毒及对催化活性的关联，推测该催化剂上的丙烯叠合反应是以酸催化反应机理进行的。催化剂的ＮａＯＨ中毒致死量为０．７２ｍｍｏｌ／ｇ
The catalytic performance of Fe (2/3) xNi1-xSO4-promoter / γ-Al2O3 catalyst on the lamination of propylene was investigated. The effect of the atomic ratio of Fe to (Fe + Ni) and the molar ratio of SO42- to (Fe + Ni) And add the effect of additives. The results showed that when the atomic ratio of Fe to (Fe + Ni) was 0.72 and the molar ratio of SO42- to (Fe + Ni) was 1.4, the catalyst activity and C12 = + selectivity were the highest. The optimum catalyst composition is 23.1% Fe0.53Ni0.21SO4-5.75% P2O5 / γ-Al2O3. Under the condition of P = 3.0MPa, T = 60-70 ℃ and LHSV = 1-3h-1, the conversion of propylene is 97% -87% and the selectivity of C12 is + 66% -52% . Through the poisoning of the catalyst and its association with the catalytic activity by NaOH, it is speculated that the propylene polymerization reaction on the catalyst is carried out by the acid-catalyzed reaction mechanism. Catalyst lethality for NaOH poisoning was 0.72 mmol / g