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- Keywords vacuum distilling;purification;Sc metal; 真空蒸馏;提纯;金属钪;
- Keywords vacuum distillation, high-purity bismuth, sulphuring deleadization,chlorinate deleadization, rich bismuth.; 真空蒸馏;高纯铋;加硫除铅;氯化除铅;精铋;
- Keywords vacuum distillation;azeotropic distillation;outgrowth in the liquefying coal water;simulation;acid mixture solution; 减压精馏;共沸精馏;费托合成水相副产物;优化;羧酸水溶液;
- 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。
- 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)。
- Keywords vacuum batch distillation;nerol;geraniol; 减压间歇精馏;橙花醇;香叶醇;
- 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。
- Keywords Vacuum deoxy;Seal;Temperature;Boiler; 真空除氧;密封;温度;锅炉;
- Keywords vacuum heattreatment;salt bath;life;sink; 真空热处理;盐浴;寿命;塌陷;
- 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。
- Keywords Vacuum;freezing;drying;fiddlehead; 真空;冷冻;干燥;蕨菜;
- 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。
- Keywords Vacuum suction;Sliming;Breast anaplasty; 负压抽吸术;减肥;乳房整形;
- 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;
