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含CeO2助催化剂的钴酞菁分子筛的微波合成及催化H2O2分解的研究 总被引:2,自引:0,他引:2
采用微波辐射在KX分子筛内原位合成了以CeO2为助剂的钴酞菁,将微波加热合成与传统加热合成进行了比较,用IR、XRD对合成产物进行了表征。考察了产物对过H2O2分解的催化活性。 相似文献
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一、工程概况及截流条件 1.工程概况克孜尔水库位于新疆阿克苏地区拜城县境内,渭干河上游木扎提河与克孜尔河的汇流处,是渭干河流域开发控制性的水利枢纽工程。水库以灌溉、防洪为主,兼发电、水产养殖等综合利用效益。总库容为64亿立方米,调洪库容3.2亿立方米,兴利库容4.77亿立方米。灌溉面积320万亩,电站装机四台装机容量26000千瓦。工程等级为一级,是新疆自治区“七五”计划的重点工程,也是新疆建国以来最大的水利水电工程建设项目。水库建成后百年一迂的洪水3380m~3/s,经过水库调节下泄流量为661m~3/s,确保渭干河下游的库车、莎雅、新和三个民族县的汛期安全和工农业生产,具有较大的社会效益和经济效益。水库枢纽由三大部分七个项目组成:挡水建筑物由主坝、方山保护体及付坝组成;泄洪 相似文献
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Several 1,4-benzenedicarbonyl thiourea resins (BTR) were synthesized through interfacial polymerization between 1,4-benzenedicarbonyl
diisothiocyanate and polyamine. Their structures were confirmed by FT-IR. The adsorption properties (including the effect
of adsorption time, pH, initial concentrations and temperature) of BTR-1, BTR-2 and BTR-3 for Ag(I) were investigated by batch
tests. The results show that the adsorption equilibria of BTR-1, BTR-2, BTR-3 for Ag(I) are achieved after about 10 h. Their
equilibrium adsorption capacities are 7.11, 6.75 and 6.23, respectively, and the adsorption process accords with G. E. Boyd
equation and Langmuir adsorption isotherm as well. The adsorption capacities increase with the increase of pH (the highest
uptake values are observed at pH being about 6–7). The thermodynamic parameters of BTR-1 were calculated. The results show
that ΔH
Θ; and ΔS
Θ are 6 958.8 J/mol and 64.28 J/(mol·K), respectively, and ΔG
Θ at 20, 30, 40 and 50 °C are −11.79, −12.52, −13.16 and −13.8 kJ/mol, respectively. The silver-loaded resins can be quantitatively
eluted by a solution containing 6% thiourea in 1 mol/L HNO3. 相似文献
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合成了6种新的N-乙氧甲酰基-N(4,5,6-三取代-2-氨基嘧啶)硫脲化合物。进行了IR、^1HNMR和元素分析表征。初步的除草活性测定表明,部分目标化合物对单子叶植物的生长有较好的抑制活性,对双子叶植物稳定,表现出较好的选择性。 相似文献
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1.1 工程概况 克孜尔水库位于新疆阿克苏地区拜城县境,渭干河上游木扎提河(?)克孜尔河的汇流处,是渭干河流域开发控制性的水利枢纽工程。水库 相似文献
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为了掌握我国工业噪声及职业危害现状,以便制订相应对策,1989至1991年国内有关研究单位联合开展了国内工业噪声调查。本文介绍杭州市工业噪声源分布状况及主要工业噪声源的确定。 相似文献