Abstract
A relatively pure sample of coal and coal pyrite (free of clays) was provided from the Coal Research Resource Center at VPI, Blackburgh, VA. The samples have been prepared and single mineral flucculation tests are in progress to confirm the selectivity achieved with the previously evaluated flocculents. The mathematical/computational model was used to predict the effect of process parameters such as feed composition and polymer dosage on the yield and selectivity. It is determined that improvement is selectivity can be achieved by controlling the dosage of not so selective flocculents. Further screening of potential selective flocculents will continue. Also FT-IR and heat of adsorption measurements and planned to better understand the parameters which control the floc properties.
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