Study on Process Mineralogical Characteristics of a Mud in Guizhou
A process mineralogy study was carried out to investigate the mineral composition,embedding characteristics and elemental distribution of aluminum,iron and titanium in a red mud in Guizhou Province,and to identify suitable recovery methods.The chemical composition,particle size characteristics,elemental distribution and mineral embedding characteristics of the red mud were analyzed in detail by chemical multi-element analysis,laser particle sizer analysis and SEM-EDS-BPMA automatic quantitative mineral analysis system.The results showed that the red mud samples are rich in iron,aluminum and ti-tanium,which can be recycled;Its particle size is very fine,and the yield of-25 p.m is as high as 77.60％.The mineral com-position is complex,and the main minerals include hematite,iron aluminum silicate,calcium iron aluminum silicate,and calci-um iron oxide.Hematite-rich concretions are more abundant and have a coarse embedded grain size;However,minerals such as stibnite and rutile are low in content,have a fine embedded grain size,are sparsely distributed,and are difficult to separate and extract.The present study further clarifies the forms of aluminum,iron and titanium elements in red mud,which provides an im-portant mineralogical theoretical basis for the development of an efficient utilization scheme for Bayer process red mud.
Bayer red mudprocess mineralogydissociation degreestate of element's assignment
万方数据
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