|
|
|
| DESULFURIZATION OF CAST IRON BY ELECTROLYZING SLAG |
| Northeast Institute of Technology; The Institute of Foundry Practice |
|
Cite this article:
Northeast Institute of Technology; The Institute of Foundry Practice. DESULFURIZATION OF CAST IRON BY ELECTROLYZING SLAG. Acta Metall Sin, 1959, 4(3): 270-281.
|
|
|
Abstract In the present communication, a method for desulfurizing cast iron by electrolyzing slag wasdescribed. Experimental results obtained with this method warranted the following conclusions: (1) Among the various methods used for desulfurization of cast iron, the method describedin the present communication is the most effective and cheap one, especially for cast iron withsulfur content higher than one percent. (2) The percentage of sulfur reduction increases with the basicity (CaO/SiO_2) of the slag.For example, for slag with basicity of 0.5, the percentage of sulfur reduction is 72; while for slagwith basicity of 1.4, the percentage of sulfur reduction is 97.5. (3) The initial sulfur and carbon content of cast iron has an obvious effect on the processof desulfurization. As the sulfur and carbon content increases, the process of desulfurization pro-ceeds more completely. (4) There is a critical current density of the cathode (molten cast iron). At the criticalpoint, the percentage of sulfur reduction is the highest. As the current density exceeds the criticalvalue, the percentage of desulfurization decreases. (5) The percentage of desulfurization increases with the voltage of electrolysis. (6) If it is possible to prolong the process of electrolysis, the percentage of sulfur reductionincreases with the time of electrolysis. The mechanism of desulfurization by electrolyzing slag was also briefly discussed.
|
|
Received: 18 March 1959
|
[1] 东北工学院铸工教研室:1959,沈阳机械(3) .
[2] Hall, H. G.: 1949, The Foundry 77 (6) (7) .
[3] 1949．
[4] Gertsman, S. L.: 1958, Foundry 86 (8) .
[5] 1957, (12) .
[6] 丸山益辉:1956,铸物28(8) .
[7] 丸山益辉:1956,铸物28(9) .
[8] 丸山益辉:1958,铸物30(6) .
[9] 火法冶金的物理化学第二卷,1957,高教出版社.
[10] 1959,(1) .
[11] 1958,31(12) .
[12] 黄子乡:1955,物理化学,高教出版社.
[13] Baumer, S. D., Hulme, P. M.: 1951, Journal of Metals, 3 (4) , Trans. Section. |
| No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
