loiwtjsf
Dołączył: 30 Sie 2010
Posty: 1562
Przeczytał: 0 tematów
Ostrzeżeń: 0/5
Skąd: ewcinl
|
 Wysłany: Śro 10:10, 05 Sty 2011 Temat postu: ugg milano Preparation of strontium metal cathode |
|
|
,[link widoczny dla zalogowanych]
Preparation of strontium metal contact with the cathode
Add l ~ 2srF,[link widoczny dla zalogowanych], the current efficiency of up to 55 ~ 57, and the role of SrFi worry too much in CaF2 and the KFI and the PPD will join Tian} KF electrolyte viscosity increases the moisture absorption than SrF and CaF, added KF After the rejection of the current efficiency but decreased the production of cathode contacts are often mixed with strontium holding more electrolyte (usually near 2Owt),[link widoczny dla zalogowanych], to be protected in a closed container filling Ar remelting ingots. Rejection of ingots of strontium atomic absorption spectrometry analysis indicated that the metal impurities Ca · 0.017, FeO. 025%,[link widoczny dla zalogowanych], MgO. 28,[link widoczny dla zalogowanych], Al <O. 05%, Si0.13%, the purity of the strontium nearly 99. In: a typical experiment, the metal strontium per kg, 6.5 kg SrCl consumption, that is the theoretical value is about 3.6 times 1.8l kg, timely replacement of electrolytes and the regeneration treatment can be directly Sr yield increased from 20 to 30 to 55 or so. V. Conclusion The analysis of the contact l cathode electrolysis SrC! Electrolyte composition of the basic principles and} 2. Preparation of the metal by exposure to strontium cathode, the electrolyte temperature, electrolyte composition, current density and cathode power ● t contact with the cathode 3 5 Preparation of the amount of electrolytic metal strontium has a great impact indicators. Select 84% SrCl2-16% KCI (wt%) as electrolyte, add 1% SrF =, cathode current density 14N21A / c, electrolytic temperature 73O ℃, 75A · hr · power set, we can obtain better results t the current efficiency 50 ~ 57%, strontium yield nearly 55 straight DC power consumption of 16 degrees / kg of strontium, strontium, nearly 99% purity. References [1] CalletA. eta1. . J. ofAppliedElectro-chemistry, 12 (1982), 557 [2] DavidT, J. oEMetals, May (19SZ), 2O [3] MilletJ. P. JofAppliedElectroche · mistry, 12 (1982). 557. [4] SU. pat. 542728 · a (i stare ∞. [5] LeandroL.M., Internat [o ~ nhlCastetalJournal, l (1976), Ne4, 65 [6] VolokovichA.V .. 1zv.VUZ.TzvetnayaMetallurglya (1981), NB5, 80 [] ZhuravlenV.I., Ibid. (1981), l, 5 ●. [8] DoroninN.A., MetallurglyaKal'tslya. Mcta1uriat. (1969), 49.PreparationofMetallicStrontiumwithContactCathodLuQingdaoYuZhongxingWanJizhongZhangChuanjieXiongSonghuang (ShonshoiUniversityofTechnology) AbstractTheelectrolysisofSrCI2-KCIfusedsaltwithcontactcathodtoobtainmetalstrontiumisdiscussedinthepresentwork.Theoptimumtechno ~. gicalconditionsforpreparingstrontiumwithcontactcathodanditstechnico -economicalindexesaredeterminedonthebasisofOUrexperiments.ThestrontiumrodcoveredwithfusedsaltshellistakenfromthecathOdandisremeltedinaclosedcontainerfilled. withargon.Itspurityiscloseto99% .. Keywords: Strontium, Contactcathod, Fusedsaltelectrolysis.
相关的主题文章：
[link widoczny dla zalogowanych]
[link widoczny dla zalogowanych]
[link widoczny dla zalogowanych]
Post został pochwalony 0 razy
|
|
FAQ
Szukaj
Użytkownicy
Grupy
Galerie
Rejestracja
Zaloguj się, by sprawdzić wiadomości
Zaloguj
