Beneficiation of olivine foundry sand by differential

A high quality olivine foundry sand is produced from olivine containing rock by wet differential attrition grinding followed by a size separation to remove finely divided gangue materials The olivine sand product displays rounded grains has a low impurity content and


The leaching efficiency of nickeliferous lateritic ore is optimized by scalping the ore to remove a coarse low nickel fraction and provide a fine nickel rich fraction which is then high pressure leached in a sulfuric acid solution by controlling the parameters temperature

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nbsp 0183 32 When these two fractions were leached for 60 minutes using an acid to ore ratio of 0 24 1 by weight the classifier sands consumed 50 lbs of sulfuric acid per lb of nickel dissolved at 80 nickel extraction efficiency whereas the classifier overflow consumed

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There are generally two spiral classifier classification methods one is in accordance with the number of the screw shaft it can be divided into single and double spiral classifier spiral classifier Another kind is according to the overflow weir height it can be divided

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The classifier mainly consists of transmission helix tank lifting mechanism lower bearing bearing and drainage valve The spiral classifier is widely used in classifying ore sand and fine mud in concentrator and ball mill or in gravity concentrator for granularity

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Beneficiation of olivine foundry sand by differential

nbsp 0183 32 Talc and serpentine are often associated with olivine as in dunite and these minerals are particularly undesirable because of their contained water of hydration However both talc and serpentine are relatively soft talc having a Mohs hardness of 1 to 1 5 while

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Beneficiation of low grade magnesite ores Download PDF Info Publication number US2831574A US2831574A US397372A US39737253A US2831574A US 2831574 A US2831574 A US 2831574A US 397372 A US397372 A US 397372A US 39737253 A pulp

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Serpentine Subgroup Mineral information data and localities Marmolite Light green pearly serpentine which may show a somewhat Sunagawa I and Koshino Y 1975 Growth Spiral on Kaolin Group Minerals Spiral Classifier for Mineral Processing Mar 19

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sinking type The overflow weir of high weir classifier is higher than the center of the Get Price Spiral Mill Classifier Spiral Mill dolomite magnesite serpentine chlorite tremolite and anthophyllite as impurities The properties of talc that enables its
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