Concentration/calcination process of zinc silicated minerals and concentrate zinc silicate based product
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United States of America Patent
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Feb 6, 2007
Grant Date -
Apr 29, 2004
app pub date -
Nov 29, 2001
filing date -
Jan 24, 2001
priority date (Note) -
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Abstract
A concentration process of zinc silicated minerals, particularly willemite and calamine concentration, by single operations, or conventional steps of ore treatment, some of which include the following: Preparation of stockpiles of different mineralogical and contents compositions, crushing, screening, storage, dense separation, washing, homogenization, magnetic separation, grinding, classification, rubbing, conditioning, flotation, thickening, filtering, calcination, storage and waste deposition.
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