sulfide ore polymetallic

Research on the Selective Grinding of Zn and Sn in …

In this paper, a selective grinding characterization method is proposed to optimize the grinding of cassiterite polymetallic sulfide ore based on the respective selective grinding indexes, namely, the changes in the …

Grinding Optimization of Cassiterite-Polymetallic Sulfide Ore …

The primary useful minerals of cassiterite polymetallic sulfide ore are cassiterite, pyrite, pyrrhotite, arsenopyrite, sphalerite, jamesonite, and small amounts of sphalerite, tetrahedrite tin, galena, and chalcopyrite. Gangue minerals are mainly quartz and calcite [ 1 ]. This type of tin ore must be comprehensively utilized because of its many ...

POLYMETALLIC VEIN AND REPLACEMENT DEPOSITS (MODELS 19a and 22c; Morris

Sulfide ore bodies are associated with several stratigraphic levels. Three main ore-bearing levels are distinguished. The first level is represented by pyrite and …

Combined microflotation effects in polymetallic ores …

In flotation of polymetallic ore, flotation system simultaneously contains all sulphide minerals of non-ferrous metals and waste rock minerals, which negatively affect the flotation process. At a given density, the L:S ratio is 5:1, the probability of collision of the useful component with the air bubble is reduced and some of the useful ...

Sulfide partial melting and galena–tetrahedrite intergrowth texture…

Galena–tetrahedrite intergrowth textures have been observed in some quenched run products of melting experiments conducted at 500 and 600°C in the systems ZnS–PbS–FeS–Cu 2 S–Sb 2 S 3 and ZnS–PbS–FeS–Cu 2 S–Sb 2 S 3 –As 2 S 3, using the evacuated silica-tube method.At 600°C the intergrowth formed an interface between …

Extreme enrichment of polymetallic Ni–Mo–PGE–Au

A conformable Ni–Mo polymetallic sulfide horizon occurs in the lowermost few meters of this black shale succession. The linear trend of the Ni–Mo sulfide ore occurrence in South China suggests the possibility of structural control by a major deep fault zone in the transitional area between Neoproterozoic back-arc basin and platform ...

New insights related to the flotation of covellite in porphyry ores

The Denver cell test with a porphyry ore shows a selective flotation with IPETC at a pH of 11 with a low collector dosage (5 g/ton), achieving recoveries of 92% covellite and 39% pyrite. Also, recoveries of 85% covellite and 75% pyrite were observed for a bulk flotation with IPETC at pH = 8 at the same collector dosage.

Accumulation of sulfides in the basement of southern Hunan …

Moreover, the ore-related magma of this deposit experienced enrichment in metallic elements and sulfur at depth (Ding et al., 2016; Hu et al., 2017; Ding et al., 2021). Based on the evidence, the Pb–Zn mineralization of the Huangshaping copper-polymetallic deposit is formed by the residual magmatic hydrothermal fluid.

Minerals | Special Issue : Sulfide Mineralogy and …

The massive sulfide deposits (VMS) from Mănăilă are associated with the metamorphic formations of the Tulgheș Lithogroup from the Bucovinian Nappes of the Crystalline-Mesozoic Zone in the Eastern Carpathians, Romania. The following types of ore were identified: pyrite-polymetallic, pyrite copper, compact and precompact [...] Read …

Metals Extraction from Sulfide Ores with Microorganisms: …

Nowadays, due to fast global industrial progress and near diminution of high-grade ore reserves, there has been massive call to cost-effectively process the resources of low-grade ores and industrial effluents for metal extraction. However, conventional approaches cannot be used to process such resources due to high capital cost and …

Divining gold in seafloor polymetallic massive sulfide …

Divining gold in seafloor polymetallic massive sulfide systems. Invited Paper. Open access. Published: 29 June 2019. 54, 789–820 ( 2019 ) Download PDF. You have full access to this open …

Re–Os dating of molybdenite and in-situ Pb isotopes of

The Dachang tin-polymetallic district, Guangxi, China, is one of the largest tin ore fields in the world. Both cassiterite-sulfide and Zn–Cu skarn mineralization are hosted in the Mid-Upper Devonian carbonate-rich sediments adjacent to the underlying Cretaceous Longxianggai granite (91–97 Ma). The Lamo Zn–Cu deposit is a typical skarn …

URANIUM MINERALIZATION AND ITS RADIOACTIVE …

This layer is enriched in Ni (up to 3.8 wt %), Mo (up to 7.7 wt %), and U (up to 595 ppm), but its genesis is still controversial. Here we report the first direct observation of uranium-bearing minerals and their radioactive effects on the surrounding matter in the polymetallic sulfide ore.

Grinding Optimization of Cassiterite-Polymetallic Sulfide Ore

The results corroborate that when the grinding time of cassiterite is 4 min and the grinding time of sulfide ore is 8 min, the grinding qualified size range index under unit energy consumption is ...

Polymetallic massive sulphide deposits | MIDAS

Polymetallic massive sulphide deposits are most commonly formed along tectonic plate boundaries and volcanic provinces in water depths from <500 to 5000m. Seawater seeps into the volcanic rock making up the …

Sticky bacteria: Combined effect of galactose and high ferric …

In this study, the double induction of EPS with galactose and high ferric iron concentrations in planktonic cells of Acidithiobacillus ferrooxidans, and their attachment on the surface of a polymetallic sulfide ore from Bella Rica-Azuay in Ecuador were evaluated.

How to Process Gold-Bearing Polymetallic Ores?

The ore is sent to a smelter for smelting, and gold is recovered during the smelting process. 2. Telluride Gold-Bearing Polymetallic Ores Processing. Gold-bearing minerals are still dominated by ...

How to Process Zn-Sn Polymetallic Sulfide Ore?

The above is followed the four solutions for the separation of zinc and tin in the zinc-tin(Zn-Sn) polymetallic sulfide ore. When choosing a specific zinc-tin separation process, a beneficiation ...

Current Situation on Flotation of Cu-Pb-Zn Sulfide Ore …

order of flotability from high to low. In a beneficiation tests of a Cu-Pb-Zn polymetallic sulfide ore, the sequential preferential flotation process by the order of copper- lead-zinc was adopted[2], and the products, including copper concentrate assaying 19.84 % Cu at recovery of 60.25 %, lead concentrate

Mining and Processing of Seafloor Massive Sulfides

The Japan Oil, Gas and Metals National Corporation (JOGMEC) has been working toward developing seafloor polymetallic sulfide deposits. As part of its achievement, in 2017, it successfully tested continuous lifting of ore from the seabed in Exclusive Economic Zone (EEZ) of Japan near Okinawa.

Mineralogical Analysis of Nickel/Copper Polymetallic Sulfide Ore …

The wavelength dispersive X-ray fluorescence (WDXRF) and X-ray diffraction were performed for the standardless quantitative analysis of Ni/Cu polymetallic sulfide ore. On the basis of fundamental parameter approach and Rietveld refinement Method, the validity of mineralogical identification and quantification was confirmed for analyzing this ...

Genesis of a Ag-Pb-Zn-F system: Insights from in situ sulfur …

The USGS polymetallic sulfide pressed pellet MASS-1 and reference materials NIST 610 and NIST 612 were utilized as a combined calibration for trace element compositions of pyrite. ... The third type (Py3) forms anhedral, irregular grains disseminated in Ag-bearing sulfide ore with irregular dissolution holes (Fig. 5 e, f.

Fluid provenance and genetic type of the Bubin Cu-Pb polymetallic …

Ore geology. The Bubin Cu-Pb polymetallic deposit is located within the Ladakh-batholith, close to the eastern side of the Nanga Parbat ... The sulfide-ore stage is further divided into two sub-stages: IIa (quartz-chalcopyrite-magnetite) and IIb (quartz-galena-fahlore). Stage I is defined by medium to coarse-grained, euhedral to ...

Recognizing the evolution of the stratabound polymetallic …

Cu-Au polymetallic sulfide deposits in the Tongling region are mainly skarn- and strtabound-type deposits; porphyry-type deposits are minor and usually occur in the deeper parts of skarn-type deposits. The geological characteristics of the deposits are similar (Pan and Dong, 1999). Skarn-type orebodies exist in the form of veins in the …

Mineral Paragenesis, formation stages and trace

The progress of the ore deposition process with the formation of late polymetallic and stibnite-berthierite mineralization led to recrystallization of early sulfides …

Self‐Potential Tomography of a Deep‐Sea …

The high electrical conductivities (up to 12 S/m) of sulfide samples measured in the laboratory and the oxidized sulfides recovered …

Study on the occurrence state of indium in sphalerite of

Three sets of roughly parallel NS-trending faults (F 0, F 1, F 2) are the main ore-controlling structures of the deposit, which are of great significance to the formation of tin, zinc, and other polymetallic ores.The F 1 fault crops out in the central part of the mine area, and the hanging wall and footwall of the fault are all strata of the Xinzhaiyan …

Enrichment of Platinum Group Elements in Lower Cambrian Polymetallic …

A conformable Ni–Mo polymetallic sulfide horizon occurs in the lowermost few centimeters of this succession. The linear geographic trend of Ni–Mo polymetallic sulfide ores in South China suggests the possibility of structural control by a major deep fault zone in the Neoproterozoic back-arc-basin/platform transition zone (Steiner et al., …

Divining gold in seafloor polymetallic massive sulfide systems …

The controls on the gold enrichment in volcanogenic massive sulfide (VMS) deposits have been a persistent theme in ore deposits research for more than 30 years. A major motivation is that gold production from massive sulfide deposits accounts for a significant portion of their metal value; some deposits are world-class gold mines …

Study on the Grinding Law of Ball Media for Cassiterite–Polymetallic …

To solve the problem involved in the grinding of cassiterite–polymetallic sulfide ore in which fine grinding causes the cassiterite to be overground or coarse grinding leads to inadequate liberation of sulfide minerals, the influences of the ball grinding medium on the size distribution of the grinding product were investigated. Two types of ball filling …