a Value of quality factor Q at the point where the dose equivalent is maximum in a 30 cm diameter cylinder tissue equivalent phantom b Monoenergetic neutrons incident normally on a 30 cm diameter cylinder tissue equivalent phantom § 20 1005 Units of radioactivity For the purposes of this part activity is expressed in the special unit of curies Ci or in the SI unit of becquerels Bq
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Get PriceThe process of concentrating Au and Ag ores is based upon Cyanide process Mac Arthur Forrest Process This is very good process for the removal of gold from tailings of amalgamation process or from even poorer ores It is based on the fact that gold dissolves in dilute solution of sodium/potassium cyanide in presence of atmospheric oxygen with the formation of complex cyanide
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Get PriceEM ore pre concentration before further processes e g milling flotation hydrometallurgy etc The challenge Remove low grade ore <0 5% Ni and waste from feed material Feature Value Sorting Task Remove all particles <0 5% Ni Feed rate approx 60 t/h Size range 25 50mm Feed grade 1 4 1 6% Sorter concentrate Product 2 0 2 7% Ni
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