ACIDITY相关论文
N-Heterocyclic nitrogen Lewis acids are important in synthetic chemistry.Stable cyclic(amino)(aryl)nitrenium cations,cyc......
The coke deposition on HZSM-5/SAPO-34 composite catalysts has been studied in the conversion of ethanol to propylene.The......
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The roles of acidity and micropore structure of zeolite were studied in the hydrolysis of the model oligosaccharide of c......
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以十六烷基三甲基溴化铵(CTAB)为模版剂,Y型分子筛为前驱体制备了一种微孔和介孔复合的硅铝酸盐吸附剂(MAS),研究了其柴油吸附脱硫......
Study on the Feasibility of NIR Technique Application to Measure Strawberry Internal Fruit Quality T
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Mutation breeding is one of the most important breeding approaches.Seeds of the inbred lines 76-2 melon (Cucumis melo va......
PT-IL17:Acidity Characterization of Solid and Liquid Acids:A Combined Experimental NMR and DFT Calcu
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Acidity of the Aqueous Anatase TiO2(101)Surface from Density Functional Theory Based Molecular Dynam
Surface acidities are a fundamental property of the oxide water interface that plays significant role in surface chargin......
Methanol-to-olefins (MTO) conversion is one of the important processes in coal chemical industry.By extensive density fu......
Novel multi–SO_(3)H functionalized ionic liquids as highly efficient catalyst for synthesis of biodi
Biodiesel is an attractive alternative to fossil fuels due to the energy and environmental concerns. In this paper, seve......
基于松香中树脂酸与碳酸氢钠的反应定量生成二氧化碳的原理,通过热导检测器测定二氧化碳的含量,提出一种顶空气相色谱法测定松香样......
研制应用于正戊烷异构化的非贵金属催化剂Ｍｏ－Ｎｉ０／ＨＭ。以丝光沸石作载体，经两次２ｍｏｌ／Ｌ的ＮＨ４ＮＯ３铵交换，一次质量分数为０．３６的乙酸交换；用常规方法在室温下先后浸渍......
There are about 5 million ha of strongly acid soils (ph<4.8 in 0.01 mol.L^-1 CaCl2) in Victoria and about 11 million ha ......
The hydroxyl groups and their acidic properties of AlPO<sub>4</sub>-5, SAPO-5 and HZSM-5 havebeen examined by means of I......
Mesoporous aluminosilicates (MAS) bearing microporous zeolite units and mesoporous structures were synthesized by the hy......
Auto-catalysts were the largest consumers of platinum group metals and the most important secondary resources, recovery ......
The paper presents a new method of determining Ge in gold alloys by potassium iodate potentiometric titration rather tha......
Synergistic effect between Sn and K promoters on supported platinum catalyst for isobutane dehydroge
Catalytic dehydrogenation of isobutane has recently received considerable attention because of the increasing demand for......
Reaction of isatoic anhydride with aniline derivatives gave 2-amino-N-(aryl)benzamides.The latters reacted with phenyli-......
Hydroxylation of Benzene to Phenol via Hydrogen Peroxide in Hydrophilic Triethylammonium Acetate Ion
A new Fenton-like system in a medium of hydrophilic triethylammonium type of ionic liquid(IL) was used for the hydroxyla......
The promotional effect of the interaction between titania and ceria on the catalytic performance for selective reduction......
Effect of surface acidity and pore size of Al-substituted plugs-containing SBA-15 and MCM-41 silicas
We reported here the simultaneous influence of surface acidity and pore size of Al-substituted hexagonal mesoporous sili......
Compressed CO2 could promote the disproportionation reactions of aryl alcohols in water medium significantly.The control......
The porous material ATZ with micro-mesopore hierarchical porosity was prepared by alkali treatment of parent HZSM-5 zeol......
The activity of Lewis (Nb2O5) and Br nsted (Amberlyst 70) acid catalysts for the cyclodehydration of xylose to furfural ......
Computer simulation of the preparation process loading rare earth(RE)directly from acidic extractant and RE chloride was......
The acidic properties of aluminum phosphate (AlPO4-5) solid acid catalyst were characterized by tem-perature programmed ......
Preparation of modified Ce-SAPO-34 catalysts and their catalytic performances of methanol to olefins
The modified Ce-SAPO-34 catalysts were prepared with three methods, i.e., the liquid ion exchange with air calcination, ......
Fluid coking on micro-spherical particles with acid sites on them could produce more light oils from Tahe AR.The convers......
High acidity crude oils have an advantage over normal oils in terms of their price,but can cause corrosion and refinery ......
Various acidic components(MOx:phosphate,sulfate,tungstate and niobate)were loaded on Ce0.75Zr0.25O2powders by an impregn......
The continuous dehydration of D-glucose into 5-hydroxymethylfurfural(HMF) was carried out under mild conditions,using SO......
Influence of interactions between chromium and cerium on catalytic performances of CrO_x–CeO_2/Ti-PI
A series of CrOx–CeO2/Ti-PILC(PILC is pillared interlayered clay)catalysts for n-butylamine oxidation were prepared usi......
Differences between Zn/HZSM-5 and Zn/HZSM-11 zeolite catalysts in alkylation of benzene with dimethy
HZSM-11 zeolite supported Zn catalysts with different Zn contents(xZn/HZSM-11A) were prepared. In the alkylation of benz......
Chlorogallate(Ⅲ) ionic liquids: Synthesis, acidity determination and their catalytic performances fo
A series of triethylammonium-based chlorogallate(Ⅲ) ionic liquids with varied Lewis acidity was synthesized, characteri......
Convenient synthesis and application of novel bi-SO_3H-functionalized ionic liquids based on piperaz
In this article,series of novel bi-SO_3H-functionalized ILs were synthesized using simple,efficient and economic procedu......
Experiments were carried out to investigate the influences of cation from electrolytes and acidity/alkalinity on the pha......
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......
α-benzoin oxime is the special reagent of molybdenum,which is the most widely used in the separation and analysis of mo......
In order to determine the chemical process conditions in the high precipitation rate of the uranium(Ⅳ)oxalate precipita......
Solvent extraction performance of Ce(Ⅲ) from chloride acidic solution with 2-ethylhexyl phosphoric a
By using membrane dispersion micro-extractor, Ce(Ⅲ) solvent extraction experiments were conducted. Cerium chloride solu......
Coking kinetics and influence of reaction-regeneration on acidity, activity and deactivation of Zn/H
The coking kinetics and reaction-regeneration on Zn/HZSM-5(Zn/HZ) catalyst in the conversion of methanol to aromatics we......
Efficient synthesis of poly(oxymethylene) dimethyl ethers over PVP-stabilized heteropolyacids throug
A series of polyvinylpyrrolidone-stabilized heteropolyacids(PVP-HPAs)are generated by self-assembly of HPAs and PVP in m......
Influences of cerium on structure and catalytic performance of n-heptane hydroisomerization of Ni-HP
By means of X-ray diffraction(XRD), N2 adsorption-desorption, Fourier transform infrared spectroscopy(FT-IR), scanning e......
1-Butene isomerization and metathesis over Mo/mordenite-alumina: Factors influencing product distrib
Effects of space velocity, reaction temperature and support acidity on product distribution and induction period in 1-bu......
