Electroslag process for better titanium deposition morphology

9th International Symposium on Electromagnetic Processing of Materials

材料科学;物理学

Platacis, E.^1 ; Kaldre, I.^1 ; Blumbergs, E.^1 ; Serga, V.^2

Institute of Physics, University of Latvia, Miera 32, Salaspils

LV-2169, Latvia^1

Institute of Inorganic Chemistry, Riga Technical University, 3/7 P. Valdena, Riga

LV-1048, Latvia^2

关键词: Deposition morphology;    Electroslag;    Kroll process;    Laboratory reactors;    Magnesium chlorides;    Titanium electrodes;    Titanium production;    Titanium tetrachlorides;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/424/1/012019/pdf
DOI  :  10.1088/1757-899X/424/1/012019

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Most common process for titanium production nowadays is Kroll process. This process has several drawbacks. Process is cyclical, and titanium comes out in sponge like form. This means that process is long, reaction is uncontrollable and requires post-processing of titanium sponge, which is energy consuming. In this work we present the idea to use Kroll process combined with electroslag process to produce titanium in continuous, more efficient process. Main idea is to use heated reactor where the initial reaction products (titanium tetrachloride and magnesium) are injected in liquid and gaseous phases, and reaction takes place above liquid slag in gaseous phase. Slag layer ensures titanium separation from unreacted magnesium and magnesium chloride, and other reaction waste products. Titanium droplets filtrate through the slag and is separated from the other fractions. In this paper we test the feasibility of this idea by studying the electroslag remelting of a titanium electrode in a specially prepared laboratory reactor. Chemical analysis is done to measure the composition of reaction products.