Applying BTF-15221 collector allowed, as compared to the standard IMA-I413p reagent, to increase recovery of copper, gold, and silver and reduce arsenic content in the copper …
The flotation by surface sulphidisation of the oxidized copper-cobalt-bearing ore from Kimpe (1.97% Cu; 0.66% Co) was studied in order to evaluate its behavior by the analysis of its most ...
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. ...
Understanding flotation kinetics and selectivity is essential for manipulating copper flotation process involving amorphous silica. Flotation kinetics refers to the rate at which valuable mineral particles attach to air bubbles and report to the concentrate during the flotation process, and it is typically described by mathematical kinetics models [13, 14].
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 ...
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. …
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 …
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.
The principal technological scheme of flotation includes copper–nickel and nickel–pyrrhotite flotation cycles, the selection of a copper–nickel concentrate into a copper …
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
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 ...
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 …
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 ...
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 ...
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 …
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 …
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.
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 …
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 …
sbm flotation copper concentrator plant gold russianGold Mining Machine Flotation Cell Concentrator Gold processing flotation machine for ore concentrator gold ...
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 …
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 …
JSC ORMET (Orenburg Region, part of the Russian Copper Company Group) has launched new flotation equipment. At the enrichment plant of the enterprise, two two-chamber machines of the RIVS "RIF" brand were put …
The goal of the present work was to develop hydrometallurgical approaches based on acid leaching for selective extraction of base metals and gold from the sample of old flotation tailings of copper-zinc sulfide ore containing copper, zinc, and gold, as well as to evaluate the application of flotation tailings as a source of oxidant for ...
2.2. Mineralogical and elemental composition of a representative sample of flotation tailings from the Svyatogor concentrator. The flotation tailings obtained from the Svyatogor concentrator contained 0.29% copper, 0.26% zinc, 17.20% total sulfur, 3.20% sulfate sulfur, 14.0% sulfide sulfur, 22.14% total iron, 6.80% calcium oxide, and 0.49% total carbon.
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 …
Large-scale manufacturers of flotation machines in Russia are RIVS (Saint-Petersburg), Usolmash LLC (Irkutsk Region) and TRUD PLANT (Novosibirsk). Russian suppliers have …
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 …
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 ...
Table 1: Grade/recovery performance of a hypothetical copper ore flotation process. Product % Weight % Cu Assay Feed 100 2.09 Concentrate 10 20.0 Tailings 90 0.1 (a) From Table 1, the Ratio of Concentration can be calculated as F/C = 100/10 = 10. If only assays are available, the ratio of concentration equals (20 – 0.1)/(2.09 – 0.1) = 10 ...
Fourteen reagents that are potentially capable of chelating with a metal ion on the surface of the major copper sulfide minerals and pyrite were evaluated for their effectiveness in floating these sulfides. The reagents studied fall into the classes of mercaptobenzole mutations, thiouronium, thionocarbamates, thiourea, imidazole mutations, oximes, hydroxyquinoline and …
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 …
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. …
SULFHYDRYL PHOSPHORUS-CONTAINING COLLECTORS IN FLOTATION OF COPPER–NICKEL 1011 JOURNAL OF MINING SCIENCE Vol. 51 No. 5 2015 Fig. 1. Flotation of pyrrhotine with SPC agents at рH 8.5: 1—Aerophine 3416; 2—Aerophine 3406; 3—Aerophine 3418A; 4—butyl Aeroflot; 5—butyl xanthate. The comparison of the floatability of …