تعتبر شركة Olux شركة رائدة ومتميزة على المستوى الدولي في مجال البحث والتطوير وتصنيع وبيع محطات التكسير والغربلة واسعة النطاق ومعدات الطحن الصناعية ومصانع الاستفادة.
Porphyry copper ore deposits belong to the main sources of copper, molybdenum, as well as gold, silver and a number of concomitant elements – such as rare, precious and trace elements. Countries with developed copper industries (and Uzbekistan is one of them) are working on establishing major processing sites, which are to process huge amounts of porphyry copper …
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Keywords: porphyry–copper–gold ore, chalcopyrite, gold, ore formation, flotation properties of minerals DOI: 10.1134/S1028334X23601748 Russia's largest Malmyzh deposit of porphyry– copper–gold ores is located in Khabarovsk krai, and there are also promising Au and Cu ore occurrences there [1, 2] (Fig. 1). A detailed study of Cu–porphyry
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The Russia's largest Malmyzh deposit of gold-copper-porphyry ore is being developed in the Khabarovsk Krai with a Cu content of 0.41% and Au content of 0.2 g/t. ... Copper flotation of bulk sulfide concentrate in a weakly alkaline medium at pH 8.74–8.94 indicates the possibility of isolating total copper concentrate with a Cu content of 20. ...
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Some researchers explored the separation between copper sulphides and pyrite in flotation at alkaline pH. For example, Yin et al. (2019) investigated the effect of pH on covellite and pyrite flotation and found that a high selectivity of covellite flotation against pyrite was achieved when flotation pH was greater than 10 as a result of strong pyrite depression.
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Although basic porphyry copper flotation and metallurgy has remained virtually the same for many years, the processing equipment as well as design of the mills has continually been improved to increase production while reducing operating and maintenance costs. Also, considerable attention is paid to automatic sensing devices and automatic controls in order to …
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For oxide copper ore and some sulfide ores, a combined flotation–hydrometallurgy technology is applied to produce copper concentrate and copper cathodes. The processing of …
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As a collector, dialkyldithiophosphate-type IMA-I413p reagent is used. Bulk sulfide concentrate is produced using activated carbon and trisodium phosphate; copper cleaner flotation is carried out in the medium of ferrous sulfate. The commercial copper concentrate contains 16 % copper, 33 g/t gold, and 280 g/t silver.
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Copper Flotation is a beneficiation method based on the hydrophobicity difference of the mineral surface. While the copper mineral is usually in the form of sulfuration exiting in the mineral. Its natural floatability is good, so froth flotation is the main method of extracting copper ore. According to the processing order of the useful mineral ...
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Abstract This paper proposes a method for quickly estimating the average flotation capacity of minerals according to the kinetic experiment without finding the flotation spectrum at which the first moments of distribution are calculated by the coefficients of the polynomial approximation of the logarithmic form of the kinetics. Using the example of copper-nickel ore, it …
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Abstract The authors compare the effect exerted by copper ions and sulphide copper nanoparticles on flotation of Gorevka deposit sphalerite using potassium n-butyl xanthate and in reagent-less regime. Covelline-like colloid particles 4–8 nm in size, obtained in interaction of copper (II) and sulfide ions in aqueous solutions, are characterized using the methods of …
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The principal technological scheme of flotation includes copper–nickel and nickel–pyrrhotite flotation cycles, the selection of a copper–nickel concentrate into a copper …
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The copper deposit in Yangla zone of China is large, and its recovery is low only using flotation process. Therefore, the copper in the flotation tailings is leached by sulfuric acid can improve copper recovery. The factors affecting leaching process and the leaching mechanism were investigated in this study. Copper is leached at a rate of 53.8% when initial H2SO4 …
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The raw material base of the Russian copper industry is mainly sulfide copper-Nickel and copper-pyrite ores. Exploration of copper-porphyry deposits and the creation of long …
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FIELD: mining. SUBSTANCE: reagent for flotation concentration of sulphidic copper-nickel ores consists of potassium butyl xanthate and tosyl hydrazine with the primary content of tosyl hydrazine at the level 25-50% of total amount of reagent. EFFECT: increase of extraction of nickel and copper in a concentrate. 1 tbl, 6 ex
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Large-scale manufacturers of flotation machines in Russia are RIVS (Saint-Petersburg), Usolmash LLC (Irkutsk Region) and TRUD PLANT (Novosibirsk). Russian suppliers have …
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Especially adapted to flotation of copper and gold ores in lime circuit. Non-frothing promoter. Minerec 27: Similar to Minerec A & B: Undiluted liquid .05 to .25: Powerful and selective collector for flotation of copper ores. Nacconol NR: White flaky solid. Sodium alkylated aryl sulfonate. 1-5% solution. – to .5
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The flotation results indicated an enrichment in the copper content of the flotation concentrate to about 14.47% from a feed of 1.22%, with a recovery of about 79.66%. Similarly, Li et al. [ 56 ] studied the possibility of recovering valuables …
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The broken bonds on copper oxide mineral surfaces, such as malachite, are mainly ionic and have strong hydrophilicity, which makes it difficult for xanthate collectors to be used directly in flotation of copper oxide minerals [5]. Therefore, the main direct flotation methods for copper oxides are chelating-reagent flotation and fatty-acid ...
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Porphyry copper deposits (PCDs) are some of the most important sources of copper (Cu) and molybdenum (Mo). Typically, the separation and recovery of chalcopyrite (CuFeS2) and molybdenite (MoS2), the major Cu and Mo …
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Abstract: The paper discusses the prospects of improving the efficiency of copper ore concentration processes based on the use of new flotation agents and optimization of the …
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A representative sample of zinc oxide from Dashteh Sefid mine was obtained and then mineral characterization studies were done. The results of mineralogical analysis showed that the main zinc-bearing minerals are smithsonite, hemimorphite and gangue minerals are quartz and dolomite. In the present paper, the effect of important factors including sodium …
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Leaching of converter slag flotation tailings from the Svyatogor copper smeltery (Sverdlovsk region, Russia) by sulfuric acid solutions containing ferric ions was investigated. The solutions were obtained using oxidation of ferrous sulfate by a consortium of moderately thermophilic acidophilic chemolithotrophic microorganisms, including Sulfobacillus species.
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Moscow State Mining University, Leninsky pr. 6, 117049 Moscow, Russia Received 21 March 2002; accepted 15 April 2004 ABSTRACT Theoretical substantiation of activation, deactivation and depression processes in flotation of copper-pyrite, copper-zinc and polymetallic ores with the use of cyanide as well as their regularities are considered.
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In these tests, a zinc flotation was also performed to measure the metallurgical performance of that metal. The flowsheet schematic and summary of test results. As shown in the summary tables, copper was, on average, 63% recovered into …
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Many copper flotation plants around the world, and particularly those in the Americas, have enough gold in the ore to ensure that special attention is given to maximize the recovery of gold into the copper concentrate. There has been a significant increase in the availability of selective flotation collectors for gold, and these are now widely ...
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The recovery of these copper minerals by flotation or hydrometallurgy from ores, typically containing 0.5%TCu (open pit mines) and 1-2%TCu (underground mines) is of great commercial importance ...
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A hydroxylated xanthate salt (HXS) was synthesized from ethanol, carbon disulfide, and NaOH. The flotation responses of chalcopyrite and molybdenite when HXS was used as a novel depressant were investigated using bench-scale flotation tests. The bench-scale flotation results indicate that HXS strongly influenced the flotation of chalcopyrite and had little effect on …
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This paper examines the mineral and chemical composition of converter slags generated by Balkhash Copper Smelter, as well as the forms in which copper ispresent in them. The paper describes the results of flotation of the above product, which was prior subjected to fine crushing in jaw and hammer crushers. The paper features a comparative analysis that looks at the size …
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Sodium thiosulfate is added additionally in conditioning process, and the ratio of sodium sulfite, thiosulfate and sodium chloride is from 1:1:0.1 to 1:4:4. EFFECT: improved method of flotation. …
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Proposed method comprises spherical grinding of crushed copper ore in lime medium, subsequent conditioning of pulp with reagents: collector and ing agent, flotation of crushed material to produce copper concentrate and tails.
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In the current research work, influences of particle size, grinding time, and agitation rate on the flotation of a copper sample from Sungun copper mine (E. Azerbaijan, Iran) containing 0.66% Cu ...
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It is pointed out that impact crushing of copper smelter slags significantly intensifies the flotation process. This should be taken into consideration when optimizing the processing schemes. …
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FIELD: mining. SUBSTANCE: method of flotation of copper-molybdenum ores includes grinding of ore and collective flotation of copper and molybdenum in alkaline medium formed by lime. Collective flotation is conducted in the presence of collector Aero-MX 3601 and a frothing agent; next the concentrate of collective flotation after operations of thickening and desorbtion with …
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A maximum recovery of copper was 88,58% while the grade was 2,88 with 32,29 copper oxide on the total massive copper under the flotation conditions: 1,15 pulp density, 10 g/t dosage collector, 10 g/t dosage frother, and 50 g/t dosage dispersant and the maximum grade 12,24 while the recovery was 47,02% under the flotation conditions: 1,15 pulp ...
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The main beneficiation methods for sulfide copper-nickel ore are: flotation, biological beneficiation and chemical extraction. ... It has completed industrial trials in Russia, Kazakhstan, South ...
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Control over the reagent flotation mode of copper-nickel ores is considered. It is proposed to take into account the residual concentration of sodium dimethyl dithiocarbamate (DMDC) ions in the pulp in its algorithm. Controlling the DMDC consumption using the results of determining the residual concentration of its ions in the pulp optimizes the reagent mode and …
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