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- The extraction separation process for zirconium and hafnium with MIBK was briefly reviewed in this paper. 简要评述了用甲基异丁基酮(MIBK)萃取分离锆铪方法的基本原理、分离工艺和条件、萃取设备。
- A new process of metallurgy of rare metals zirconium and hafnium with caustic soda instead of sodium carbonate to rub up zircon is examined. 研究了以氢氧化钠代替碳酸钠拌和锆英砂冶炼锆、铪稀有金属的新工艺。
- In the analysis of zirconium and hafnium, it's not only needed to separate the coexistent elements, but also to separate zirconium and hafnium. 对锆铪分析通常不仅需与共存元素分离，而且要进行锆与铪的分离。
- In this paper,the distributing,characteristic and the significance in the economy of and the construction of national defense on zirconium and hafnium resource were briefly introduced. 简要介绍了锆铪资源的分布、特点,在国民经济和国防建设中的意义;
- It was pointed out that the MIBK in thiocyanic acid system for separating zirconium and hafnium was effective and with complete technology,it can be used in production on a large scale. MIBK法的主要缺点是必须用有毒的SCN-作稀释剂,工艺复杂而冗长,操作不易控制,劳动强度大,收率低。
- materials of zirconium and hafnium 锆铪材料
- separation of zirconium and hafnium 锆铪分离
- The Synthesis of Bis (Alkylcyclopentadienyl)Dithiocyano of Titanium,Zirconium and Hafnium 双(烷基环戊二烯基)二硫氰基钛、锆、铪的合成
- Zirconium and hafnium oxides--Determination of zirconium(hafnium) oxide contents--Mandelic acid gravimetric method 氧化锆、氧化铪中氧化锆和氧化铪含量的测定(苦杏仁酸重量法)
- Keywords titanium;zirconium and hafnium substituted phosphorus ylides;complex;methylene triphenyl phosphorane; 钛、锆、铪取代膦叶立德;络合物;亚甲基三苯膦;
- 4 Zirconium and hafnium are the group 4 elements in the second and third transition series. 元素那么快，因而相邻的过渡元素原子半径的差别不像主族元素的差别那样明显。
- Simultaneous determination of zirconium and hafnium in iron and steel by ion pair reversed - phase liquid chromatography 离子对反相色谱法同时测定钢铁及合金中锆和铪
- Method for chemical analysis of Zirconium ores--Determination of Zirconium and Hafnium contents--X-ray fluorescence spectrometric method 锆矿石化学分析方法X射线荧光光谱法测定锆量和铪量
- A Study of Dual-wavelength Spectrophotometry Simultaneous Determination of Microgram Amounts of Zirconium and Hafnium with Oxidized Salicyl Florone 双波长分光光度法研究.;氧化水杨基萤光酮同时测定微量锆与铪
- A Study of the Xylenol Orange Spectrophotometric Mehod for the Determination of the Amounts and the Part Amounts of Zirconium and Hafnium in Superalloy 二甲酚橙光度法测定高温合金中锆铪总量和分量的研究
- Synthesis and structure of the lithium, zirconium and hafnium N-silyl-N’-benzyl-benzamidinates, Inorganica Chimica Acta ,2008, 361(9),2008-4,sci核心B区(一A),排名:5 一种新型的色胺脒基的合成与结构;山西大学学报(增刊);31.;87-88;2008-5;其他正式刊物(二B);排名:2
- Zirconium and Hafnium 锆铪
- The Preconcentration of Niobium,Tantalum,Zirconium and Hafnium Using Organic Coprecipita-tion and Determination of Trace Niobium and Tanta-lum in Geological Samples by X-Ray Spectrometry 有机共沉淀富集铌钽锆铪X射线荧光光谱法测定痕量铌钽
- I hit him fair and square on the jaw. 我不偏不倚打中他的下巴。
- It is a fact of life and you must face it. 这是严酷的现实，你必须面对它。
