MODELING AND SCALEUP OF GALVANIC DEOXIDATION OF MOLTEN METALS USING SOLID-ELECTROLYTE CELLS

Citation
S. Yuan et al., MODELING AND SCALEUP OF GALVANIC DEOXIDATION OF MOLTEN METALS USING SOLID-ELECTROLYTE CELLS, Journal of the American Ceramic Society, 79(3), 1996, pp. 641-650
Citations number
27
Categorie Soggetti
Material Science, Ceramics
ISSN journal
00027820
Volume
79
Issue
3
Year of publication
1996
Pages
641 - 650
Database
ISI
SICI code
0002-7820(1996)79:3<641:MASOGD>2.0.ZU;2-6
Abstract
Argon and induction stirred copper melts were deoxidized at different temperatures by short-circuiting a solid electrolyte cell, The solid e lectrolyte cell consisted of an yttria-stabilized zirconia tube closed at one end, The tube interior was Bushed with a reducing gas and the tube was immersed in the copper melt, A layer of porous Ni-ZrO2 cermet deposited on the inner wall of the tube served as the anode while the copper melt was the cathode, The deoxidation experiments were modeled as a function of mass transfer in the melt, temperature, electronic a nd ionic conductivity of the electrolyte, short-circuit resistance, an d flow rate of the reducing gas, The deoxidation model was used to dis cuss process optimization and scaleup.