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    Thermogravimetric and distillation studies on mercury, antimony and arsenic sulfides

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    Author
    Town, J.W.
    Rao, P.D.
    Keyword
    thermogravimetric studies
    mercury
    antimony
    arsenic
    mining
    Metadata
    Show full item record
    URI
    http://hdl.handle.net/11122/1087
    Abstract
    Thermogravimetric studies were made on naturally occurring sulfides of mercury, antimony and arsenic to determine activation energies and Arrhenius rates of reaction in vacuum and in atmospheres of air and nitrogen. Of the three sulfides only antimony showed an appreciable change in rate of reaction for the different test conditions. Distillation results on three flotation concentrates from Alaska mining operations showed that cinnabar (mercury sulfide) could be distilled in a closed system, with over 99 percent recovery of the mercury as metal when the sulfur was reacted with iron. Over 98 percent mercury recovery was obtained from a cinnabar-stibnite (antimony sulfide) concentrate, with less than 1 percent of the antimony distilled from the furnace charge. Cinnabarrealgar-orpiment (arsenic sulfides) could not be separated by distillation and large quantities of soot (condenser residue) formed with the metallic mercury in the condenser.
    Date
    1975
    Publisher
    University of Alaska Mineral Industry Research Laboratory
    Type
    Technical Report
    Citation
    Town, J.W. and Rao, P.D., 1975, Thermogravimetric and distillation studies on mercury, antimony and arsenic sulfides: University of Alaska Mineral Industry Research Laboratory Report No. 33, 94 p.
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    MIRL Report Publications

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