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| STUDY ON RECOVERY OF W,Mo,Cr AND V FROM SCALE OF HIGH-SPEED STEEL |
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Revised:May 20, 2004
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| KeyWord:High-speed steel,Scale,Silicon-thermal process,Secondary alloy,Comprehensive utilization |
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| Abstract: |
| On the basis of thermodynamic analysis,the technology for recovering W,Mo,Cr and V metals in the form of secondary alloy from scale of high-speed steel by silicon-thermal was studied.The effects of lime,reducing reagent and unit thermal on metal recoveries were analyzed.The results,with the W and Mo recoveries over 95%,the Cr recovery greater than 72% and V recovery not less than 45%,show that the technology is feasible for treating metallurgical materials.The product quality is stable and can meet the need of steel-making.Remarkable social and economic benefits have been gained owing to the full utilization of high-speed steel waste. |
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