Experim entofD esulphurization T echnology by C arbotherm ic R eduction M agn esia in V acu u m
WANG Changbao
WU Haibin
Abstract：A new technology of preliminary desulphuzation of hot metal by carbothermic smelting magnesia in vacuum was introduced. The feasibility of new technology was studied by a crucible furnace, using pig iron, magnesia and graphite (MgO/C=1∶2, the mol ratio) as starting materials. 3%CaF2 of magnesia and graphite gross weight was added. The three were levigated together(<0.088 mm) and were heated to 1 400℃in the vacuum resistance furnace, which heating rate was reduced from 10℃/min to 5℃/min after 800℃. The results showed that the sulfur content in melted iron decreased to 0.009%from 0.032%, desulfurization ratio was 72%. So the method was a feasible desulphuzation technology.
Keywords：hot metal desulphurizationmagnesiagraphitevacuum heating
Publication Date：2014-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：2( 37-38 )