acidity相关论文
Computer simulation of the preparation process loading rare earth(RE)directly from acidic extractant and RE chloride was......
The catalytic activity of trimethyl phosphite modified HZSM-5 zeolite and un-modified HZSM-5 zeolite treated with 100% s......
A new zinc acetate catalyst which was prepared from modified activated carbon exhibited extreme activity towards the syn......
The effect of acidity and redox capability over sulfuric acid-modified CeO2 catalysts were studied for the selective cat......
采用超景深光学显微镜（OM）、扫描电镜（SEM）、能谱仪（EDS）、显微硬度计对锆合金702焊缝的显微组织与力学性能进行观察和分析;对锆合金焊缝......
为了提高以N2O5为硝化剂的硝化体系硝解3,7-二硝基-1,3,5,7-四氮杂双环[3,3,1]壬烷(DPT)制备HMX的收率,考察了在N2O5/HNO3/有机溶......
Novel catalysts of phosphotungstic heteropolyacids (PW1,2) supported on neutral alumina were prepared by assistance of u......
Two series of Cu/ZSM-5 catalysts,loading from 5 to 20 wt% CuO.were prepared by thedeposition-precipitation and impregnat......
Olefin alkylation of thiophenic sulfur process was carried out in model gasoline, using Hβ zeolites with different Si/A......
Effects of ammonium exchange and Si/Al ratio on the conversion of methanol to propylene over a novel
One type of ZSM-5 zeolite with large partical size was prepared and characterized by XRD, SEM, N2 adsorption-desorption,......
A detailed study on the synergetic effect of TeMo5O16 and MoO3 phases in the MoTeOx catalysts for the partial oxidation ......
An effective route to improve the catalytic performance of SAPO-34 in the methanol-to-olefin reactio
An effective route to improve the catalytic performance of SAPO-34 in the methanol-to-olefin reaction by simple oxalic a......
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
Effect of pH values on the extracellular polysaccharide secreted by Acidithiobacillus ferrooxidans d
The pH value plays an important role in the bioleaching of sulphide minerals. The effect of pH values on the extracellul......
C5-C8烷烃异构化反应是提高汽油辛烷值的重要手段,已成为人们的研究热点.综述了近年来C5-C8烷烃异构化反应中应用的改性分子筛催化......
分别采用溶胶-凝胶法和共沉淀法制备了TiO2-SiO2复合氧化物,并以此复合氧化物为载体制备了加氢脱硫催化剂。采用氮气恒温吸附脱附......
采用“沉淀-浸渍”法制备一系列不同硫酸负载量的SO2-4/ZrO2-Al2O3催化剂,利用N2吸附-脱附、Py-FTIR、XRD等手段对催化剂进行表征.......
Effect of surface acidity and pore size of Al-substituted plugs-containing SBA-15 and MCM-41 silicas
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
目的：探索研究中成药固体制剂的酸度。方法按照2010版《中国药典》二部（附录VI H）项下，测定样品水溶解后的溶液的pH值。结果17家药厂生......
Auto-catalysts were the largest consumers of platinum group metals and the most important secondary resources,recovery o......
分别采用氟硅酸铵液相反应法和高温水热硝酸法对Y型分子筛进行了改性,并借助X射线衍射仪、NH3-程序升温吸附法和27Al-核磁共振对改......
Mesoporous tetragonal sulfated zirconia with high surface area and narrow pore-size distribution was prepared using Zr(O......
Effects of ammonium exchange and Si/Al ratio on the conversion of methanol to propylene over a novel
One type of ZSM-5 zeolite with large partical size was prepared and characterized by XRD, SEM, N2 adsorption-desorption,......
以沉淀法、水热合成法和浸渍法制备了磷酸锆催化剂，通过X射线衍射、热重分析、氮气物理吸附、红外光谱和Hammett指示剂法对催化剂进......
The successful production of higher hydrocarbons from methane depends on the stability or the oxidation rate of the inte......
Effect of acidity of drugs on the prediction of human oral absorption by biopartitioning micellar ch
Biopartitioning micellar chromatography (BMC) is a potentially high throughput and low cost alternative for in vitro pre......
Effects of acidity and mesoporosity development in ZSM-5 on biomass-derived ethylene oligomerization
...
Mesoporous Silicoaluminum Pillared Clays with High Thermal Stability and Brφnsted/Lewis Acidity by O
Mesoporous silicoaluminum pillared clays have been synthesized by one-pot gallery-templated synthesis using organomontmo......
系统地研究了SO2-4/ZrO2-SiO2催化剂的酸性和比表面积,采用吸附吡啶的红外光谱法、BET法以及指示剂法考察了催化剂的组成、温度以......
Effect of Water Vapour on the Acidity of ZSM-5Zeolite Used for Catalytic Cracking of Naphtha to Manu
The change in acidity of the ZSM-5 zeolite was investigated after it was treated with water vapour,and its capability on......
A detailed study on the synergetic effect of TeMo5O16 and MoO3 phases in the MoTeOx catalysts for the partial oxidation ......
Various type of cesium partially substituted phosphotungstate,Cs_xH_(3-x)PW_(12)O_(40)(x = 1.0,2.0 and 2.5),were synthes......
An effective route to improve the catalytic performance of SAPO-34 in the methanol-to-olefin reactio
An effective route to improve the catalytic performance of SAPO-34 in the methanol-to-olefin reaction by simple oxalic a......
