OS process

Suzuki, Ryosuke O.; Natsui, Shungo; Kikuchi, Tatsuya

doi:10.1016/b978-0-12-817200-1.00012-0

Cited by 8 publications

(2 citation statements)

References 56 publications

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“…11) calcium is below magnesium, indicating its greater potential for reduction. According to theoretical calculations, when using calcium as a reducing agent, it is possible to achieve a residual oxygen content of 300-730 ppm [44,45]. However, on a practical level, it is difficult to achieve a high degree of titanium oxide reduction in one stage due to the formation of a layer of the reaction product-calcium oxide-on the surface of metal titanium particles.…”

Section: Determining Quality Indicators Of the Resulting Product Acco...mentioning

confidence: 99%

Development of a technology to produce titanium powder with a low carbon footprint

Gonchar¹,

Troshchylo²,

Brodskyy³

et al. 2023

EEJET

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This paper reports the analysis of modern technologies for the production of titanium from oxide raw materials. It has been established that current industrial methods for producing titanium require the use of carbon as a reducing agent and, accordingly, cannot decrease carbon emissions without changing the technology. That is why devising a technology for producing titanium with a reduction in emissions of carbon components is a relevant task. So, the object of research is the technology of obtaining titanium from its oxide without the use of carbon components. It was found that an integrated approach to the preparation of raw materials and the separation of reduction processes with the successive use of two types of reducing agents – magnesium and calcium, made it possible to create an effective process for producing titanium without the use of carbon reducing agents. The influence of calcium and magnesium chlorides as promoters of the reduction process was revealed. Experimental studies have established that the shape and density of raw materials significantly affect the efficiency of the reduction process by streamlining the reducing agent flows and reaction products in the furnace charge. The established regularities made it possible to improve the process of reduction of titanium oxide to obtain samples of titanium powders with an oxygen content of 0.17 %, which corresponds to international standards for titanium alloys and powders. Additional plasma treatment made it possible to obtain materials that were suitable for additive processes in all respects. A systematic approach to the utilization of reaction products made it possible to devise a technological scheme in which all possible waste is either returned to the technological process after treatment or processed into marketable products. Based on the results of the study, a technological scheme for obtaining powders of titanium alloys from titanium oxide by complex reduction in two stages – magnesium and calcium – was developed. The proposed scheme involves standard metallurgical processes and is brought to standard processes and equipment of metallurgical enterprises and chemical industry. In terms of practical significance, the results of this work could be used in the development of industrial technology to produce titanium from titanium dioxide without the use of carbon components.

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Section: Determining Quality Indicators Of the Resulting Product Acco...mentioning

confidence: 99%

Development of a technology to produce titanium powder with a low carbon footprint

Gonchar¹,

Troshchylo²,

Brodskyy³

et al. 2023

EEJET

View full text Add to dashboard Cite

show abstract

“…13) Most of the proposals are described in a book recently edited by Fang et al at Utah University. 14) Some proposals have already advanced to the stage of substantial pilot plants, whereas others are still being developed at the laboratory level. The first runners met several technical issues to be solved, and the other researchers need the financial assistance to scale up for practical testing.…”

Section: Introductionmentioning

confidence: 99%

Recent Studies on Titanium Refining: 2017–2020

2021

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Titanium oxide can be converted directly to its metallic state. This extraordinary technology is realized in a CaCl 2 -based molten salt that can extract oxygen ions from the cathode. Several discussions have been exchanged in the field of electrochemistry and metallurgy in the last two decades. Recent papers on titanium refining are overviewed by selecting popular papers, especially those published in this journal, Materials Transactions. Basic and scientific studies on titanium and its refining are briefly analyzed, and some practical applications are introduced in related oxide reductions and the corresponding molten salts.

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Investigation on the application of platinum anode towards direct electrochemical reduction of solid metal oxides in CaCl2–CaO melt

Mukherjee,

Kumaresan

2024

J Appl Electrochem

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OS process

Cited by 8 publications

References 56 publications

Development of a technology to produce titanium powder with a low carbon footprint

Development of a technology to produce titanium powder with a low carbon footprint

Recent Studies on Titanium Refining: 2017–2020

Investigation on the application of platinum anode towards direct electrochemical reduction of solid metal oxides in CaCl2–CaO melt

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