• process mineralogical studies of charagah manganese ore

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1389/07/20
    • تاریخ انتشار در تی پی بین: 1389/07/20
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     charagah ore deposit is located in the 82 km at the north-west of tabriz, iran. mineralogical studies performed by xrd, xrf, optical microscopy and sem equipped by wdx indicated that the ore is contained 17% pyrolusite, 78% calcite and 3% quartz approximately. pyrolusite as a main valuable mineral is found in the forms of coarses and fines pyrolusite. the coarse grains pyrolusite with simple texture is liberated in 180 microns. this liberation degree was determined by image analysis software. another kind of pyrolusite has very complicated texture and interlocking with gangue minerals. this interlocking is even found finer than 10 microns sizes. so, concentration of coarse part of the ore will be possible easily by gravity methods such as tabling and heavy media separation. the flotation process is predicted for separation of fine grains pyrolusite, however the hydrometallurgical method can be used for upgrading of the finest fractions or slimes which are usually contained significant amount of pyrolusite.

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