The properties of the new solid supper acid catlyst which was immerged by S2O82-and added with Sm2O3 were Studied.And the effect of acid strength,sulfur content and stability on the catalyst S2O82-/ZrO2-SiO2-Sm2O2 cau...The properties of the new solid supper acid catlyst which was immerged by S2O82-and added with Sm2O3 were Studied.And the effect of acid strength,sulfur content and stability on the catalyst S2O82-/ZrO2-SiO2-Sm2O2 caused by the dinnovation was studied.展开更多
A novel type of rare earth promoted solid super acid catalyst,S2O82-/ZrO2-SiO2-Sm2O3,was prepared by a special precipitation method,and ammonia persulfate was used as promoter instead of sulfuric acid.The catalysts we...A novel type of rare earth promoted solid super acid catalyst,S2O82-/ZrO2-SiO2-Sm2O3,was prepared by a special precipitation method,and ammonia persulfate was used as promoter instead of sulfuric acid.The catalysts were characterized by XRD,TG-DTA etc.The XRD patterns of the catalysts belong to amorphous.There were much more B acid on the surface of the catalysts.It was found that the addition of rare earth could enhance the activity of catalyst significantly,the conversion of acetic acid is 99.4% in the esterification reaction by the acetic acid with the 1-butanol.展开更多
文摘The properties of the new solid supper acid catlyst which was immerged by S2O82-and added with Sm2O3 were Studied.And the effect of acid strength,sulfur content and stability on the catalyst S2O82-/ZrO2-SiO2-Sm2O2 caused by the dinnovation was studied.
文摘A novel type of rare earth promoted solid super acid catalyst,S2O82-/ZrO2-SiO2-Sm2O3,was prepared by a special precipitation method,and ammonia persulfate was used as promoter instead of sulfuric acid.The catalysts were characterized by XRD,TG-DTA etc.The XRD patterns of the catalysts belong to amorphous.There were much more B acid on the surface of the catalysts.It was found that the addition of rare earth could enhance the activity of catalyst significantly,the conversion of acetic acid is 99.4% in the esterification reaction by the acetic acid with the 1-butanol.
