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- The technics of purifying Sc metal in vacuum distilling with coarse Sc metal which is made by ScF3 deoxidized by Ca at heated condition. 介绍了用氟化钪钙热还原得到的粗金属钪为原料,通过真空蒸馏净化制取纯金属钪的工艺过程及其技术参数。
- The paper studied the synthesis of allontoin with glyoxaic acid,urea and filter liquor.Mixed acid as the catalyst,vacuum distilling condensation,the yield could be 53.1%. 采用乙醛酸、尿素和回收滤液为原料，混酸为催化剂，经真空蒸馏缩合制得尿囊素。收率达53．1%25。
- This paper analyzes the reasons about easy loss of graphite electrode used in the vacuum distilling furnace and proposes measures for reducing unit consumption of the graphite electrode according to the production practice. 对真空炉的石墨电极易损耗的原因进行了分析 ,结合生产实践 ,提出了降低石墨电极单耗的措施
- Inflammable ether was not used and vacuum distillation was omitted. 不使用易燃性乙醚作溶剂,省略高真空蒸馏。
- Keywords vacuum distilling;purification;Sc metal; 真空蒸馏;提纯;金属钪;
- Axtell's vacuum distilling apparatus 阿克斯特尔(氏)真空蒸馏器
- Setting up the vacuum distillation apparatus for the Essential Oils experiment. (Photo by Chemistry laboratory staff. 为了做精油实验而搭建的真空蒸馏装置(摄影：化学实验室职员)。
- The purifcation of Dy, Ho and Er metals has been studied by the method of vacuum distillation. 本文研究了金属镝、、的真空蒸馏提纯效果。
- Fatty acid is made from spent material in production of ricinus oil by acidification, washing, and vacuum distillation. 蓖麻油下脚料经酸化水洗，减压蒸馏等工序分离制取脂肪酸。
- It is a guide for the vacuum deep cut revamping on atmospheric and vacuum distillation unit. 结果表明对常减压装置减压深拔技术改造有一定的指导意义。
- This paper discuss the technology of separating zinc-tin alloy to recover zinc and tin by vacuum distillation. 研究了真空蒸馏法分离废杂锌锡合金回收锌锡金属的工艺。
- The combined vacuum distillation and melt crystallization technology was used to purify DDHI from artificial musk. 通过减压精馏-熔融结晶耦合技术研究提高人造麝香(DDHI)含量的原理和工艺流程。
- The refined product with high purity is obtained by vacuum distillation of crude benzal chloride. 将制得的苄叉二氯粗品进行真空精馏得到高纯度的精品;
- Atmospheric distillation,vacuum distillation and azeotropic distillation processes were used to separate 1,2-dichloropropane from the waste liquor. 采用常压精馏、减压精馏、共沸精馏工艺分离环氧丙烷生产废液中的1,2-二氯丙烷。
- These higher boiling components will be removed by vacuum distillation of the provided sample to permit facile gas chromatographic separation. 为了能顺利地进行气相色层分离，可以对所提供的样品进行真空蒸馏，把较高沸点的混合物除去。
- You will separate the carvone from the higher-boiling and lower-boiling impurities (such as limonene), via a vacuum distillation. 你将会通过真空蒸馏法，把香芹酮中较高沸点和较低沸点的杂质(如柠檬烯)分离开。
- You can purify the water by distilling. 你可以通过蒸馏来净化水。
- The results showed that the separation of vacuum distillation was preferable,and the content of thiodiglycol can reach 99.77 %. 结果表明:减压蒸馏法是一种行之有效的分离方法;利用减压蒸馏可得到含量高达99.;77%25的硫代二甘醇。
- Water can be made pure by distilling it. 水可以通过蒸馏而提纯。
- This model austerely simulating dynamic action of vacuum distillation unit, and the dynamic curve of Vacuum's sidetrack from feed-in to static state. 该模型严格地模拟了减压精馏塔的动态行为,模拟了稳态下进料发生变化时减压精馏塔中各塔板上液相浓度变化的曲线。
