Nickel concentrates Metal content: around 10 per cent Precious metals Zn Zinc. Cu Copper. Pb Lead. Ni Nickel. Au Gold. Ag Silver. H 2 SO 4 Sulphuric acid. Concentrate. Byproducts. Contact. Boliden Head Office . Boliden Group Klarabergsviadukten 90 P.O. Box 44, SE101 20 Stockholm Tel: +
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low zinc (Zn) ore was fed to the plant. Marketable copper concentrate at 9195% recovery was produced utilizing a highpH bulk sulphide rougher flotation and 2 cleaning stages. Because of increased levels of Zn of the ore body, a Cu/Zn separation circuit was initiated in early 2010 following an intensive laboratory test work program.
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At the Iijima Refinery of Akita Zinc Co., treating a zinc concentrate assaying 1.2 g/t Au and 186 g/t Ag, more than 98% of the gold reports to the leach residue (CuPbAg residue) that assays 10.9 g/t Au and 1587 g/t Ag.
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Cu Copper Concentrates Cu Copper Ores Cu Copper Secondaries Au Gold Pb Lead Ores Pb Lead Concentrates Pb Lead Metals Ni Nickel Intermediates 20200617 Press release NA Pb_Zn business exit (6.17.20) 20200609 Message from the CEO June 9, 2020 20200519
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As described in the leadzinc ore processing section, zinc sulphate and metabisulphide sphalerite and pyrite depressants, respectively, are typically added to grinding. Then a CuPb bulk concentrate is recovered with xanthate, dithiophosphate and flotation reagent blends.
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CRM Code Principle Certified Values State Matrix Mineralisation Wishlist All Add to cart OREAS 78: Co 23.74wt.% Ni 25.79wt.% S 28.61wt.% primary: sulphide
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Figure 1. Indirect bioleaching of ZnPbAg sulphide concentrates 3. PROCESS DESCRIPTION The indirect bioleaching processing route for ZnPbAg concentrates starts with a chemical leaching step where the zinc is extracted from the solid to the aqueous phase by means of the chemical oxidation process using ferric sulphate as main reaction.
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20170821· Table 3 Chemical Analysis of MercuryBearing Copper Concentrates Element Concentrate A Concentrate B Cu 26 20 Fe 26 27 S 28 38 As + Sb 0.1 4.1 Zn 0.1 5.5 Hg, ppm 200 430 The principal mineralogy of the two concentrates is shown in Table 4.
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experimental conditions was 71.89 and 69.76%, respectively. A flotation concentrate containing 39.13% Zn, 6.93% Pb and 973.54 g/Mg Ag was obtained from the treated material, and the recovery of Zn, Pb and Ag was 48.38, 68.23 and 77.41%, respectively. The tailing containing ZnFe 2 O 4 or Fe 3 O 4 could be either stockpiled or further disposed.
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Differential flotation of concentrates of Pb, Cu and Zn, a profitable option for the separation of LeadCopper minerals in La Negra Mine. R. Castillo, J. Sandoval and C. Alvarez, Unidad
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