scholarly journals Development of the Molten Slag Reduction Process -1 Characteristics of Closed Type DC arc Furnace for Molten Slag Reduction

2018 ◽  
Vol 58 (10) ◽  
pp. 1934-1942 ◽  
Author(s):  
Toshiya Harada ◽  
Hiroshi Hirata ◽  
Takashi Arai ◽  
Takehiko Toh ◽  
Takahiro Yamada
Keyword(s):  
Molten Slag ◽  
Reduction Process ◽  
Arc Furnace ◽  
Dc Arc Furnace ◽  
Closed Type ◽  
Slag Reduction ◽  
Dc Arc

Effect of Melting and Refining with DC-Arc on the Yield of Alloy Element

2013 ◽  
Vol 803 ◽  
pp. 200-204 ◽  
Author(s):  
Jian Bin Chen ◽  
Mao Fa Jiang
Keyword(s):  
Molten Metal ◽  
Molten Slag ◽  
Alloy Element ◽  
Arc Furnace ◽  
Metal Interface ◽  
Dc Arc Furnace ◽  
Ac Arc ◽  
Dc Current ◽  
Dc Arc ◽  
Melting Experiment

In order to know what effect on the yield of alloy elements will be if the steel is melted/refined with the DC arc furnace, the effect of melting and refining with DC-arc on the yield of alloy element has been investigated by a melting experiment, in which the melting/refining is switched to continuous melting/refining with DC-arc after the molten metal is contact with the molten slag for 41 minutes without DC-arc, and by a contrast experiment of melting/refining with DC-arc and with an AC-arc. When DC current passes through the slag-metal interface and the slag-gas interface, the existence of the electrolysis phenomenon during the DC-arc steel melting/refining has been confirmed. Electrolysis participates in the metallurgical reaction. The phenomenon of two or more electrode reactions taking place simultaneously at both the slag-metal interface and the slag-gas interface has also been observed. The two phenomena cause the accelerating loss of the alloy-elements in the molten metal and the decreasing of concentrations of the corresponding oxides in the molten slag. The electrochemical transfer of oxygen from the molten slag to the molten metal ((O2-)=[+2e and (O2-)=1/2O2+2e) at the slag-metal interface has been observed, and causes the increasing of oxygen content in the molten metal.

The ABB DC arc furnace : past, present, future

1992 ◽  
Vol 89 (6) ◽  
pp. 525-532
Author(s):  
S.E. Stenkvist
Keyword(s):  
Arc Furnace ◽  
Dc Arc Furnace ◽  
Dc Arc

Practice of Titanium-Slag Smelting by Large DC Arc Furnace

2020 ◽  
Vol 996 ◽  
pp. 179-184
Author(s):  
Shi Hong Huang ◽  
Xian Hao Long ◽  
Yan Cui ◽  
Ting Lei
Keyword(s):  
Yunnan Province ◽  
Mineral Resources ◽  
Arc Furnace ◽  
Titanium Slag ◽  
Electrode Consumption ◽  
Gas Utilization ◽  
Dc Arc Furnace ◽  
Advanced Production ◽  
Dc Arc ◽  
A Company

This paper introduces the characteristics of titanium mineral resources in Yunnan Province and the production situation of titanium-slag smelting, The article puts forward the necessity of constructing a project of producing 80,000t/a of high-titanium. The process is advanced production technology of a company in South Africa, the process has a large capacity, gas utilization, energy, and low electrode consumption, the article carried out economic evaluation of the project.

scholarly journals Development of DC arc furnace.

DENKI-SEIKO ◽  
1990 ◽  
Vol 61 (2) ◽  
pp. 142-148
Author(s):  
Takaaki Noda ◽  
Kikuma Izumi ◽  
Suguru Nakayama ◽  
Shuh-ichi Nakatsubo ◽  
Makoto Takahashi ◽  
...  
Keyword(s):  
Arc Furnace ◽  
Dc Arc Furnace ◽  
Dc Arc
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