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catalysts相关的网络例句

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In these experiments, we have choosen the activated carbon as the support, and copper nitrate, copper acetate and copper sulfate were used as precursors to prepare the supported activated carbon-copper catalysts. Toluene was chosen as pollutant for activity test.

本实验选择活性碳当担体,而前驱物为硝酸铜、醋酸铜、硫酸铜制备金属活性相为铜之触媒,并假设目标污染物为甲苯来进行实验探讨。

Chiral ligands mentioned above and their complexes with acetate copper were used as enantio-selective catalysts in asymmetric cyclopropanation reactions of diazoacetate and 1,1-diphenyl ethylene. Investigations indicate that all of them reveal certain optical-selective capability, but chiral C2-symmetric 2,6-bispyridine ligands show better catalytic capability than chiral asymmetric schifF-base ligands.

选择了2个手性2,6-吡啶双噁唑啉配体和6个手性不对称席夫碱配体与醋酸铜形成的配合物作为催化剂,对重氮乙酸乙酯与1,1-二苯乙烯不对称环加成进行催化反应,发现这8个催化剂对1,1-二苯乙烯的不对称环丙烷化反应都表现出了一定的光学活性诱导能力,手性2,6-吡啶双噁唑啉-铜类具有比手性Schiff碱-铜类更好的催化性能。

The copper-coated zeolite was prepared by the ion-exchange method. The effects of parameters such as operation temperature, the concentration of VOCs, the quantity of Cu on the catalysts, and space velocity on the catalyst performance were discussed.

本研究利用离子交换法将铜植入HiSiv 3000沸石,并探讨温度、还原剂浓度、触媒之Cu含量以及空间速度等参数对测试结果之影响。

Transesterification of Jatropha curcas oil was carried out in the presence of solid acid, the effects of types of catalysts and reaction conditions on the bio-diesel yields and the components in the process of the preparation of methyl esters were examined.

采用固体酸催化酯交换方法,研究了由麻疯树油制备脂肪酸甲酯过程中催化剂类型及工艺条件对生物柴油产率和产品组成的影响。

Thinking of presenting problems, this research mainly studied some solid base catalysts which own higher catalysis ability and longer lifetime. Then, the phase diagram and equilibrium data of oil-alcohol-biodiesel-glycerol multiphase system were measured because the biodiesel producing process lacks of thermodynamic data.Based on a double-membranes theory and the thermodynamic data, a kinetic model was proposed. In addition, a mult-step extraction process was proposed to dispose the jatropha curcas l oil with high acid value in order to decrease the acid value. Then, a new technology of biodiesel producing using solid base as a catalyst was developed. The study objects and results are as follows.

本研究针对负载型固体碱催化剂活性组分易流失、使用寿命短的缺点,制备了高效、稳定的固体碱催化剂;针对生物柴油制备体系热力学数据缺乏的问题,测定了大豆油-醇-生物柴油-甘油体系的相图和平衡特性,在此基础上基于双膜理论,建立了固体碱制备生物柴油的动力学模型;同时针对酸价较高的麻疯果油,提出了先用甲醇或乙醇多级萃取降低酸价,再用固体碱催化制备的新工艺。

Therefore, it is very important to study on high nitrogen content diamond synthesis in HPHT condition.In this study, we use a cubic anvil HPHT apparatus. Using catalysts, graphite and addition of NaN3, large green single crystal diamond with high nitrogen concentration is firstly synthesized by temperature gradient method.

本文使用国产六面项压机,首次用不同触媒(FeNiMnCo、FeNiCo)+C+不同比例的添加剂NaN3合成出具有完整晶型的优质深绿色高氮含量宝石级金刚石单晶,研究了NaN3对宝石级金刚石中氮含量及生长行为的影响。

Five vanadium catalysts were made with γ-Al2O3 and the mesoporous molecular sieve MCM-41 as carrier, and were made by dipping method, intermingle process and functionalizing method respectively.

结果表明,采用以V2O5为活性组分,介孔分子筛为载体,浸渍法制备的钒催化剂,反应时DPC收率及DPC选择性是最高的,催化反应的效果最好。

The rutile TiO2 powder photocatalyst was prepared by hydrolysis process, and it was coated with WO3 by dipping process using tetrabutyl titanate (C16H36O4Ti) as raw material. The catalysts were characterized by XRD, Raman spectra, TEM and diffuse reflectance UV-Vis spectra.

以钛酸丁酯为钛源,采用水解法制备金红石型TiO2粉体,用浸渍法将制备的TiO2粉体包覆不同浓度的WO3(记为WO3-TiO2),并采用X射线衍射、拉曼光谱、透射电镜和紫外-可见漫反射光谱等手段对所得的光催化剂进行了表征。

The rutile TiO2 powder photocatalyst was prepared by hydrolysis process, and it was coated with WO3 by dipping process using tetrabutyl titanate(C16H36O4Ti) as raw material. The catalysts were characterized by XRD, Raman spectra, TEM and diffuse reflectance UV-Vis spectra.

摘 要:以钛酸丁酯为钛源,采用水解法制备金红石型TiO2粉体,用浸渍法将制备的TiO2粉体包覆不同浓度的WO3(记为WO3-TiO2),并采用X射线衍射、拉曼光谱、透射电镜和紫外可见漫反射光谱等手段对所得的光催化剂进行了表征。

Dihydropyrimidin-2 (1H)-ones were synthesized by condensation of aromatic or aliphatic aldehydes, urea and ethyl acetoacetate or acetylacetone one-pot three-component Biginelli condensation in the presence of room temperature ionic liquids as catalysts under solvent-free conditions.

5利用室温离子液体作催化剂,芳香或脂肪醛、尿素和乙酰乙酸乙酯或乙酰丙酮三组分缩合制备3,4-二氢嘧啶-2-酮衍生物。

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