钛硅分子筛（TS-1）催化氧化二甲基硫醚制备二甲基砜的研究

摘要

以二甲基硫醚和双氧水为原料、钛硅分子筛为催化剂制备了二甲基砜，确定了最佳工艺条件，即常温下钛硅分子筛为二甲基硫醚质量的7％，二甲基硫醚与双氧水的摩尔比1砄1.05，反应时间1.5 h，二甲基硫醚转化率达99％以上，二甲基砜收率达98％以上。%Dimethyl sulfone ( MSM) was prepared by oxidation dimethylsulfide ( DMS) with hydrogen peroxide over titanium silicate molecular sieve ( TS-1 ) and the preferable process conditions were determined.Under the conditions of ambient temperature and reaction for 1.5 h, TS-1:DMS(wt:wt)=7:93, and n(DMS):n(H2O2)=1:1.05, the conversion of DMS reached above 99%and the yield of MSM was above 98%.