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Purification of a Nigerian talc ore by acid leachingCited by 11
US6312500B1 Heap leaching of nickel containing ore
A process is provided for heap leaching ore to recover nickel. The process is particularly effective for ores that have a tangible clay component (i.e. greater than about 10% by weight). The process includes sizing the ore (where necessary) forming pellets by contacting ore with a lixiviant and agglomerating. The pellets are formed into a heap and leached with sulfuric acid to extract the
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Uranium processing Uranium processing Leaching Roasted uranium ores are leached of their uranium values by both acidic and alkaline aqueous solutions. For the successful operation of all leaching systems uranium must either be initially present in the more stable hexavalent state or be oxidized to that state in the leaching process. Acid leaching is commonly performed by agitating an ore
Preparation of porous material from talc by
200631&ensp·&enspRaw talc was ground for different times and then leached with 4 M hydrochloric acid (HCl) at 80 °C. Grinding for 6 h and subsequent leaching for 2 h of raw talc produced the porous silica with a specific surface area of 133 m 2 /g and total pore volume of 0.22 ml/g.
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Purification of a Nigerian talc ore by acid leaching
More improvement of talc quality was obtained by leaching the final concentrate of flotation with a 10% diluted hydrochloric acid. The mass recovery of final product was about 85% of initial feed.
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Removal of impurities from talc ore by leaching
Keywords talc leaching T aguchi method. Received 25 September 2017. otation technique wet attrition and magnetic separation . have been reported for the treatment of talc ore to obtain .