超临界乙醇,supercritical ethanol
1)supercritical ethanol超临界乙醇
1.An effort was made to develop a photocatalytic TiO2-activated carbon composite from tetraisopropyl titanate-soaked activated carbon insupercritical ethanol.超临界乙醇条件下制备的TiO2-活性炭(Sc-TiO2-AC)复合材料,表征了所制备样品的结构,且对样品的吸附及光催化净化甲醛的性能进行了分析。
2.Photo-catalytic TiO 2 was prepared from tetraisopropyl titanate (TPT) insupercritical ethanol.本研究即利用超临界乙醇流体制备TiO2 粒子 ,并研究其光催化性能 。
英文短句/例句
1.EXPERIMENTAL STUDY ON CO-LIQUEFACTION OF BAMBOO AND PE IN SUPERCRITICAL ETHANOL基于超临界乙醇的竹子与聚乙烯共液化研究
2.Study on Liquefaction Mechanism and Liquefaction of Wheat Straw Mixed with Polyester in Supercritical Ethanol麦草/聚酯混合超临界乙醇液化及其机理的研究
3.Measurement and Correlation on Infinite Dilution Diffusion Coefficients in High-Pressure and Supercritical Ethanol;高压和超临界乙醇中无限稀释扩散系数的测定与关联
4.A study on solubility regulation of ethanol,n-propanol,i-propanol,n-butanol in supercritical carbon dioxide乙醇、丙醇和丁醇在超临界二氧化碳中的溶解度
5.Catalyzed Depolymerization of Polycarbonate in Supercritical/Subcritical Ethanol;超/亚临界乙醇中聚碳酸酯催化解聚研究
6.Supercritical Fluid Technology: Silica Preparation and Impregnation of 2-Phenyl Ethanol超临界流体技术：SiO_2的制备及苯乙醇的高压植入
7.Solubility of ethanol,isopropanol in supercritical carbon dioxide and correlation model乙醇、异丙醇在超临界二氧化碳中的溶解度及其模型
8.Catalysed Depolymerization of Polycarbonate and Polyethylene Terephthalate in Supercritical and Sub-Critical Water超/亚临界水中聚碳酸酯/聚对苯二甲酸乙二醇酯催化解聚研究
9.POLYVINYL ALCOHOL GASIFICATION IN SUPERCRITICAL WATER FOR HYDROGEN PRODUCTION WITH Ni/ZrO_2 CATALYST超临界水中Ni/ZrO_2催化气化聚乙烯醇水溶液的产氢特性
parison of pharmacological effects between supercritical fluid extracts and alcohol extracts of Rhizoma Chuanxiong川芎超临界萃取物及其乙醇提取物的药理作用比较
11.Functionalized Poly(ethylene glycol)-Stabilized Palladium Nanoparticles for Selective Oxidation of Alcohols in Supercritical Carbon Dioxide超临界二氧化碳中功能化聚乙二醇稳定的钯纳米粒子催化醇的选择氧化反应
12.Study on the Extraction of Bilirubin by Supercritical CO_2 Extraction and Ethyl Acetate超临界CO_2和乙酸乙酯提取胆红素
13.Catalytic depolymerization of polycarbonate in sub-critical ethanol聚碳酸酯在亚临界乙醇中的催化解聚
14.Study on Decomposition of PBT with Water-Methanol Mixed Meedium;水—甲醇超临界混合介质分解PBT的研究
15.Liquefaction of Crop Stalks in Sub-and Supercritical Alcohols农作物秸秆在亚/超临界醇中的液化
16.Production of Micronic Particles of Xylitol Using Gas Anti-solvent Cristallization in Supercritical Carbon Dioxide超（近）临界CO_2 GAS法制备木糖醇微粒
17.PRODUCTION OF BIODIESEL FROM RICE BRAN OIL IN SUPERCRITICAL METHANOL米糠油超临界甲醇条件下制生物柴油
18.Supercritical Methanolysis Reaction of Lignite and Compositional Aanalysis of Product褐煤超临界醇解反应与产物组成分析
相关短句/例句
supercritical ethanol drying乙醇超临界
1.Preparation of hydrophobic nano-silica powders bysupercritical ethanol drying;乙醇超临界技术制备疏水性白炭黑粉体
3)ethanol supercritical drying乙醇超临界干燥
1.Silica aerogels were prepared through a two-step catalyzed sol-gel route andethanol supercritical drying technique.用溶胶-凝胶两步催化法和乙醇超临界干燥法制备了S iO2气凝胶。
4)supercritical enthanol drying超临界乙醇干燥
5)supercritical alcohol超临界醇
6)Supercritical drying with ethanol超临界乙醇流体干燥
延伸阅读
超临界萃取超临界萃取所用的萃取剂为超临界流体，超临界流体是介于气液之间的一种既非气态又非液态的物态，这种物质只能在其温度和压力超过临界点时才能存在。超临界流体的密度较大，与液体相仿，而它的粘度又较接近于气体。因此超临界流体是一种十分理想的萃取剂。超临界流体的溶剂强度取决于萃取的温度和压力。利用这种特性，只需改变萃取剂流体的压力和温度，就可以把样品中的不同组分按在流体中溶解度的大小，先后萃取出来，在低压下弱极性的物质先萃取，随着压力的增加，极性较大和大分子量的物质与基本性质，所以在程序升压下进行超临界萃取不同萃取组分，同时还可以起到分离的作用。温度的变化体现在影响萃取剂的密度与溶质的蒸汽压两个因素，在低温区（仍在临界温度以上），温度升高降低流体密度，而溶质蒸汽压增加不多，因此，萃取剂的溶解能力时的升温可以使溶质从流体萃取剂中析出，温度进一步升高到高温区时，虽然萃取剂的密度进一步降低，但溶质蒸汽压增加，挥发度提高，萃取率不但不会减少反而有增大的趋势。除压力与温度外，在超临界流体中加入少量其他溶剂也可改变它对溶质的溶解能力。其作用机理至今尚未完全清楚。通常加入量不超过10％，且以极性溶剂甲醇、异丙醇等居多。加入少量的极性溶剂，可以使超临界萃取技术的适用范围进一步扩大到极性较大化合物。
