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- W2365131737 abstract "Three kinds of low grade hematite were changed into magnetite by microwave reduction roasting process with argon as protective gas and active carbon as reductant. The influences of roasting temperature,carbon content,holding time and microwave output power on magnetic separation results were investigated. It was showed that heating rates of three kinds of hematite ores of same mass increased with the increase of C content during microwave heating. There was a similar microwave reduction roasting law for three kinds of hematite,that is,the grade and recovery of the sinters after low intensity magnetic separation were optimum at a roasting temperature of 570 ~ 650 ℃,with theoretical carbon content,holding time of 10 mins and microwave output voltage of 220 V. Furthermore,the iron grades of three kinds of magnetic concentrates all reached up to 60% after the process of fine grinding-secondary magnetic separation. This work has great instructive significance for the development of new dressing and metallurgical processes for low grade hematite." @default.
- W2365131737 created "2016-06-24" @default.
- W2365131737 creator A5052884194 @default.
- W2365131737 date "2014-01-01" @default.
- W2365131737 modified "2023-09-23" @default.
- W2365131737 title "Study on Technology of Microwave Reduction Roasting-Low Intensity Magnetic Separation of Hematite" @default.
- W2365131737 hasPublicationYear "2014" @default.
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