Preparation of High Purity Tellurium by Zone Refining Process

2013 ◽  
pp. 2679-2685
Author(s):  
Wan Gou Kim ◽  
Hong Youl Ryu ◽  
Man Sik Kong ◽  
Soon Jik Hong ◽  
Hwa Young Lee ◽  
...  
Keyword(s):  
High Purity ◽  
Refining Process ◽  
Zone Refining

Preparation of High Purity Tellurium by Zone Refining Process

PRICM ◽  
2013 ◽  
pp. 2679-2685
Author(s):  
Wan Gou Kim ◽  
Hong Youl Ryu ◽  
Man Sik Kong ◽  
Soon Jik Hong ◽  
Hwa Young Lee ◽  
...  
Keyword(s):  
High Purity ◽  
Refining Process ◽  
Zone Refining

scholarly journals Characterization and Interpretation of the Aluminum Zone Refining through Infrared Thermographic Analysis

Materials ◽  
2018 ◽  
Vol 11 (10) ◽  
pp. 2039
Author(s):  
Xiaoxin Zhang ◽  
Semiramis Friedrich ◽  
Bernd Friedrich
Keyword(s):  
Growth Rate ◽  
Crystal Growth ◽  
High Purity ◽  
Refining Process ◽  
Crystal Growth Rate ◽  
Molten Zone ◽  
Zone Refining ◽  
Ir Camera ◽  
Zone Length ◽  
Thermographic Analysis

High purity metals are nowadays increasingly in demand to serve in electronic, photovoltaic, and target materials industries. The zone refining process is the most common way to achieve high purity in the final step of metal purification. Zone length and crystal growth rate are the main parameters that control the zone refining process. To determine these values, information about temperature profiles in the molten zone is necessary due to its direct correlation with these values. As the determination of this profile is not practically achievable in the present, the novel approach of applying an infrared (IR) camera during the zone refining of 2N8 aluminum is the focus of the investigation in this work. The whole temperature profile of the region near the molten zone was recorded by IR camera during the entire running process. The zone length and the crystal growth rate at each thermographic image shooting moment were successfully extracted by thermographic analysis. Results showed that both factors varied significantly, which is in contrast to the assumption in literature about their stability while running under constant input power and heater movement velocity, though noticeable purification took place in all of these experiments. However, the impurity concentration during refinement fluctuated remarkably. This was well-demonstrated by the tendency of variation in crystal growth rate attained in this work. These results provide a better understanding of the mechanisms of zone refining with an inductive heater and contributes to the optimization of the process.

scholarly journals Production of High Purity Metals: A Review on Zone Refining Process

2018 ◽  
Vol 08 (01) ◽  
pp. 33-55 ◽  
Author(s):  
Xiaoxin Zhang ◽  
Semiramis Friedrich ◽  
Bernd Friedrich
Keyword(s):  
High Purity ◽  
Refining Process ◽  
Zone Refining

Preparative and scaled‐up separation of high‐purity α‐linolenic acid from perilla seed oil by conventional and pH‐zone refining counter current chromatography

2019 ◽  
Vol 42 (14) ◽  
pp. 2360-2370
Author(s):  
Tian Han ◽  
Guang Yang ◽  
Xueli Cao ◽  
Haoze Li ◽  
Hairun Pei ◽  
...  
Keyword(s):  
Linolenic Acid ◽  
High Purity ◽  
Seed Oil ◽  
Zone Refining ◽  
Counter Current ◽  
Perilla Seed

scholarly journals Research Status of High-Purity Metals Prepared by Zone Refining

Materials ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 2064
Author(s):  
Liang Yu ◽  
Xiaoan Kang ◽  
Luona Chen ◽  
Kun Luo ◽  
Yanli Jiang ◽  
...  
Keyword(s):  
Parameter Optimization ◽  
Future Development ◽  
High Purity ◽  
Impurity Content ◽  
Physical Method ◽  
Zone Refining ◽  
Relevant Research ◽  
Research Status ◽  
Analysis Methods ◽  
Theoretical Foundations

The zone refining method is a physical method for effectively purifying metals. Increasing yield and reducing impurity content have always been the focus of its research. This article systematically summarizes the relevant research on the production of high-purity metals by zone refining, including mechanisms, parameter optimization, zone refining types, analysis methods, limitations, and future development directions, and it provides relevant theoretical foundations for the production of high-purity metals as well.

Numerical simulation analysis on solute redistribution of In–1 wt% Sn alloy during multipass vertical zone refining process

2021 ◽  
Vol 565 ◽  
pp. 126156
Author(s):  
Mingxu Li ◽  
Qingle Tian ◽  
Meizhen Wu ◽  
Jubo Peng ◽  
Jiatao Zhang ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Simulation Analysis ◽  
Refining Process ◽  
Zone Refining ◽  
Solute Redistribution ◽  
Vertical Zone

Application of Thermodynamic Calculations to the Pyro-refining Process for Production of High Purity Bismuth

2016 ◽  
Vol 48 (1) ◽  
pp. 73-90 ◽  
Author(s):  
Mohammad Mezbahul-Islam ◽  
Frederic Belanger ◽  
Patrice Chartrand ◽  
In-Ho Jung ◽  
Pascal Coursol
Keyword(s):  
High Purity ◽  
Refining Process ◽  
Thermodynamic Calculations

Separation of CsCl and SrCl2 from a ternary CsCl-SrCl2-LiCl via a zone refining process for waste salt minimization of pyroprocessing

2016 ◽  
Vol 480 ◽  
pp. 403-410 ◽  
Author(s):  
Moonsoo Shim ◽  
Ho Gil Choi ◽  
Kyung Woo Yi ◽  
Il Soon Hwang ◽  
Jong Hyeon Lee
Keyword(s):  
Refining Process ◽  
Zone Refining ◽  
Waste Salt

scholarly journals Purification of Silicontetraiodide by Zone-refining Process

1959 ◽  
Vol 32 (6) ◽  
pp. 537-541 ◽  
Author(s):  
Hideo Baba ◽  
Tadashi Nozaki ◽  
Hidemaro Araki
Keyword(s):  
Refining Process ◽  
Zone Refining
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