化学研究与应用
化學研究與應用
화학연구여응용
CHEMICAL RESEARCH AND APPLICATION
2000年
6期
671-673
,共3页
胡健平%储伟%邱发礼%陈庆龄
鬍健平%儲偉%邱髮禮%陳慶齡
호건평%저위%구발례%진경령
固体酸%酯化反应%活性成分%反应工艺%高收率
固體痠%酯化反應%活性成分%反應工藝%高收率
고체산%지화반응%활성성분%반응공예%고수솔
solid-acid%esterification%active-component%reac tion-process%high-yield
A new type solid-acid of SO2-4/Fe2O3-ZrO2-SiO2 was prepared through coprecipitation-impregnation method and applied to catalyze the esterif ication of acetic acid and butanol.The following reaction conditions such as rea ction temperature,amount of catalyst,reaction time were examind.The conversion o f HAc,yield of butylacetate and selectivity of butylacetate could reach 98.17%,94 .28% and 96.04% respectively.In addition,the usage life was examined.The main re as on of deactivity of the catalyst maybe due to the loss of surficial SO2- 4 which is likely one of the active components.The catalysts were characterized via XPS,XRD,TGA and BET.The components of catalyst exist mainly as amorphous state.The active structure of catalyst may contain the following components as Fe,Zr,Si,O and SO2-4.
