scholarly journals A Nickel Crucible for the Determinations of Carbon in Steel.

1909 ◽  
Vol 1 (3) ◽  
pp. 184-188 ◽  
Author(s):  
Henry E. K. Ruppel
Keyword(s):  
Nickel Crucible

Electrolysis Process for Preparation of Solar Grade Silicon

2011 ◽  
Vol 391-392 ◽  
pp. 697-702 ◽  
Author(s):  
Xiang Yu Zou ◽  
Hong Wei Xie ◽  
Yu Chun Zhai ◽  
Xiao Chuan Lang ◽  
Jun Zhang
Keyword(s):  
Electrochemical Method ◽  
Silicon Powder ◽  
Argon Atmosphere ◽  
Impurity Level ◽  
Solar Grade Silicon ◽  
Metallurgical Grade Silicon ◽  
Pure Silicon ◽  
Cell Components ◽  
Nickel Crucible ◽  
Grade Silicon

Studied on electrorefining metallurgical grade silicon to prepare solar grade silicon(SOG-Si) with electrochemical method in molten KCl and NaF mixture salt. Molten KCl and NaF mixture salt as electrolyte, the metallurgical grade silicon as anode and little metal nickel crucible for collecting silicon powder as cathode, electrorefining experiments were performed at 800 and 2.0V for 14h under dry argon atmosphere. The results showed that the metallurgical grade silicon could be dissolved and deposited on the cathode through molten potassium chloride (KCl) and sodium fluoride (NaF) mixture salt electrolyte. The nickel crucible was full of deposit, which was pure silicon by XRD and EDS. Purity of refined silicon was close to 99.99%, most of impurities like B and P were reduced significantly. Impurity level of silicon was reduced to the desired range for SOG-Si by advancement of the materials for the cell components.

scholarly journals Preparation of Neodymium Metal by Pyro-Metallurgical Process Using Fluoride Salt

2018 ◽  
Vol 778 ◽  
pp. 256-261
Author(s):  
Ali Murad ◽  
Azmat Iqbal ◽  
Waqar Ahmad
Keyword(s):  
Calcium Fluoride ◽  
Thermal Reduction ◽  
Inert Atmosphere ◽  
Metallurgical Process ◽  
Stoichiometric Mixture ◽  
Good Efficiency ◽  
Metal Chips ◽  
Nickel Crucible ◽  
Calcium Metal ◽  
Metallurgical Reactions

The neodymium fluoride was reduced to metal by thermal reduction or pyro-metallurgical process using calcium as reducing agent. Thermal reduction was carried out in a sealed reactions chamber in inert atmosphere with a nickel crucible having dry calcium fluoride lining. The stoichiometric mixture of neodymium fluoride and calcium metal chips were used in the form of pallets for pyro-metallurgical reactions. Small iodine was also added to increase heat available during ignition and to yield a lower melting and more fluid slag. The contents were heated electrically at a predetermined rate until ignition took place. The reaction was self-supporting and neodymium metal was obtained with fairly good efficiency.

The determination of water in hydrated salts by means of the nickel-crucible radiator

1932 ◽  
Vol 9 (9) ◽  
pp. 1645
Author(s):  
William M. Thornton ◽  
Reuben Roseman ◽  
Meyer Neishloss
Keyword(s):  
Nickel Crucible
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