A Novel Way to Prepareγ-A1_2O_3 Supported SO_4^(2-)/ZrO_2 Solid Superacid Catalysts for n-Butane Isomerization

Highly active solid superacid catalysts for n-butane isomerization, SZ/A1_2O_3-P, were prepared by supporting SO-(4-2)/ZrO2, (SZ) on y-A1_2O_3 carrier using a precipitation method. The activities of some catalysts were enhanced significantly j The activity of the most active sample. 60%SZ/Al_2O3-P, was even about 2 times more active than that of the SZ catalyst.

SO_4^(2-)/ZrO_2-Al_2O_3催化合成糠酸酯类香料的研究

以固体超强酸ＳＯ_４^（２－）／ZｒＯ_２－Ａｌ_２Ｏ_３为催化剂合成糠酸酯类香料。通过对催化剂制备的正 交试验，优选了催化剂的制备条件；通过正交试验优化了糠酸酯化的条件：以糠酸０．１ｍｏｌ为准， 催化剂用量０，６ｇ，酸醇摩尔比１：３，反应时间４ｈ，并以此条件合成了糠酸甲酯、乙酯、丁酯三种糠 酸酯类香料。