The Preparation of Sample with Coarse Grained Au Ore and Grade Calculation
详细信息   
摘要
In the preparation of sample,we collect the Au grain over 0.5mm on the meshwork,then the coarse grained Au is concentrated with gravity dressing of the ore < 0.5mm after reduction.They are tested separately.Finally,the total Au grade of ore is calculated.The practice shows the calculated Au grade according to the testing result of sample prepaered with this method is reliable.
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