Equilibrium between titanium ions and high-purity titanium electrorefining in a NaCl-KCl melt

Jian Xun Song; Qiu Yu Wang; Guo Jing Hu; Xiao Bo Zhu; Shu Qiang Jiao; Hong Min Zhu

doi:10.1007/s12613-014-0955-0

Equilibrium between titanium ions and high-purity titanium electrorefining in a NaCl-KCl melt

Jian Xun Song, Qiu Yu Wang, Guo Jing Hu, Xiao Bo Zhu, Shu Qiang Jiao, Hong Min Zhu

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

TiCl_x (x = 2.17) was prepared by using titanium sponge to reduce the concentration of TiCl₄ in a NaCl-KCl melt under negative pressure. The as-prepared NaCl-KCl-TiCl_x melt was employed as the electrolyte, and two parallel crude titanium plates and one high-purity titanium plate were used as the anode and cathode, respectively. A series of electrochemical tests were performed to investigate the influence of electrolytic parameters on the current efficiency and quality of cathodic products. The results indicated that the quality of cathodic products was related to the current efficiency, which is significantly dependent on the current density and the initial concentration of titanium ions. The significance of this study is the attainment of high-purity titanium with a low oxygen content of 30 × 10^-6.

Original language	English
Pages (from-to)	660-665
Number of pages	6
Journal	International Journal of Minerals, Metallurgy and Materials
Volume	21
Issue number	7
DOIs	https://doi.org/10.1007/s12613-014-0955-0
Publication status	Published - 2014 Jul
Externally published	Yes

Keywords

electrodeposition
high purity materials
ionic equilibrium
oxygen concentration
titanium

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Geochemistry and Petrology
Metals and Alloys
Materials Chemistry

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title = "Equilibrium between titanium ions and high-purity titanium electrorefining in a NaCl-KCl melt",

abstract = "TiClx (x = 2.17) was prepared by using titanium sponge to reduce the concentration of TiCl4 in a NaCl-KCl melt under negative pressure. The as-prepared NaCl-KCl-TiClx melt was employed as the electrolyte, and two parallel crude titanium plates and one high-purity titanium plate were used as the anode and cathode, respectively. A series of electrochemical tests were performed to investigate the influence of electrolytic parameters on the current efficiency and quality of cathodic products. The results indicated that the quality of cathodic products was related to the current efficiency, which is significantly dependent on the current density and the initial concentration of titanium ions. The significance of this study is the attainment of high-purity titanium with a low oxygen content of 30 × 10-6.",

keywords = "electrodeposition, high purity materials, ionic equilibrium, oxygen concentration, titanium",

author = "Song, {Jian Xun} and Wang, {Qiu Yu} and Hu, {Guo Jing} and Zhu, {Xiao Bo} and Jiao, {Shu Qiang} and Zhu, {Hong Min}",

note = "Funding Information: The authors are grateful to the National Science Foundation of China (Nos. 50934001 and 51322402), the National High-Tech Research and Development Program of China (No. 2012AA062302), the Program of the Co-construction with Beijing Municipal Commission of Education of China (Nos. 00012047 and 00012085), the Program for New Century Excellent Talents in Universities (NCET−11−0577), and the Fundamental Research Funds for the Central Universities (No. FRF−AS−11−003A).",

year = "2014",

month = jul,

doi = "10.1007/s12613-014-0955-0",

language = "English",

volume = "21",

pages = "660--665",

journal = "International Journal of Minerals, Metallurgy and Materials",

issn = "1674-4799",

publisher = "University of Science and Technology Beijing",

number = "7",

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TY - JOUR

T1 - Equilibrium between titanium ions and high-purity titanium electrorefining in a NaCl-KCl melt

AU - Song, Jian Xun

AU - Wang, Qiu Yu

AU - Hu, Guo Jing

AU - Zhu, Xiao Bo

AU - Jiao, Shu Qiang

AU - Zhu, Hong Min

N1 - Funding Information: The authors are grateful to the National Science Foundation of China (Nos. 50934001 and 51322402), the National High-Tech Research and Development Program of China (No. 2012AA062302), the Program of the Co-construction with Beijing Municipal Commission of Education of China (Nos. 00012047 and 00012085), the Program for New Century Excellent Talents in Universities (NCET−11−0577), and the Fundamental Research Funds for the Central Universities (No. FRF−AS−11−003A).

PY - 2014/7

Y1 - 2014/7

N2 - TiClx (x = 2.17) was prepared by using titanium sponge to reduce the concentration of TiCl4 in a NaCl-KCl melt under negative pressure. The as-prepared NaCl-KCl-TiClx melt was employed as the electrolyte, and two parallel crude titanium plates and one high-purity titanium plate were used as the anode and cathode, respectively. A series of electrochemical tests were performed to investigate the influence of electrolytic parameters on the current efficiency and quality of cathodic products. The results indicated that the quality of cathodic products was related to the current efficiency, which is significantly dependent on the current density and the initial concentration of titanium ions. The significance of this study is the attainment of high-purity titanium with a low oxygen content of 30 × 10-6.

AB - TiClx (x = 2.17) was prepared by using titanium sponge to reduce the concentration of TiCl4 in a NaCl-KCl melt under negative pressure. The as-prepared NaCl-KCl-TiClx melt was employed as the electrolyte, and two parallel crude titanium plates and one high-purity titanium plate were used as the anode and cathode, respectively. A series of electrochemical tests were performed to investigate the influence of electrolytic parameters on the current efficiency and quality of cathodic products. The results indicated that the quality of cathodic products was related to the current efficiency, which is significantly dependent on the current density and the initial concentration of titanium ions. The significance of this study is the attainment of high-purity titanium with a low oxygen content of 30 × 10-6.

KW - electrodeposition

KW - high purity materials

KW - ionic equilibrium

KW - oxygen concentration

KW - titanium

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Equilibrium between titanium ions and high-purity titanium electrorefining in a NaCl-KCl melt

Abstract

Keywords

ASJC Scopus subject areas

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