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how to mine reactive sulphide ore

Sulphide Ore Reactive - pieprz.eu. how to mine reactive sulphide ore - rudimentals.co.za. RTS-1, RTS-2, RTS-3 and RTS-4: Sulphide Ore Mill … But Glencore says its operation hasn't contaminated fish …

Sulfide Ores - an overview | ScienceDirect Topics

VMS ore-forming fluids are acidic, reduced, 1–3 M chloride solutions in which metals were transported mainly as chloride complexes (Table 3).Before the discovery of black smokers, temperatures of the ore fluids were estimated from rare fluid inclusion data and sulfur isotope fractionation between sulfide mineral pairs. pH values about 1 unit less than neutral (~5 at 250 °C) were determined ...

Chapter 5: Sulphide minerals and acid rock drainage

However, mining of sulfidic ores is conducted in areas whereas these minerals are highly concentrated compared to that in average rock. An acid drainage generated from the oxidation of sulfide minerals associated with mining processes, is called acid mine drainage (AMD). The …

Recovery of Gold in Pyritic Sulfide Ores - Mine Engineer.Com

Using cyanide to recover gold from sulfide ores generally results in 30 to 35% recovery, and the best I have heard of is around 50% recovery. The fine coating of a iron compound definitely appears to be a key component of the inability of cyanide to efficiently leach low grade pyritic ores. Perhaps there is some room here for a pretreatment, to ...

Supergene Oxidation of Copper Deposits: Zoning and ...

potential ore grade, and requires also that removal of copper be minimal. Distinction between these protore environments is significant in exploration for copper oxide and supergene sulfide enrichment targets because prospects dominated by reactive rock units are likely to display only …

12. Supergene Ore and Gangue Characteristics

sulfide ore and reprecipitated at depth. This precipitation of Cu sulfides with high Cu/S ratios can produce an economically significant copper enrichment at the reactive redox boundary between massive sulfide protore and downward penetrating fluids. The supergene enrichment "blanket" is overlain by

Briefing Note Reactive Ground Vers 6 - Orica Mining Services

Reactive ground is a term used in the mining industry to describe ground in which the reaction between sulphides (especially iron and copper sulphides) contained in rock and the ammonium nitrate contained in explosives may take place. The reaction of ammonium nitrate with sulphide-containing minerals is an auto-catalysed process which can, after

how to mine reactive sulphide ore

Sulfide Mining Sierra ClubThe mining of copper/nickel sulfide ores is a toxic type of mining that is risky to our environment, our workers and communities, and local economies. Mining sulfide rock releases acid and toxic metals and contaminants that pollute rivers and groundwater for hundreds of …

(PDF) Geomicrobiology of sulfide mineral oxidation

Several years of mining in the IPB, one of the most extensive metal sulfide ore deposits regions in the world (Sáez et al., 1999;Johnson, 2014), has resulted in enormous metalrich wastes and ...

Mineralogical Society of America - Sulfide Mineralogy and ...

Volume 61: Sulfide Mineralogy and GeochemistryDavid J. Vaughan, editor. 2006 i-xiii + 714 pages. ISBN 0-93; ISBN13 978-0-93. The importance of sulfide minerals in ores has long been, and continues to be, a major reason for the interest of mineralogists and geochemists in these materials. Determining the fundamental chemistry ...

A REVIEW OF SULFATE REMOVAL OPTIONS FOR MINE WATERS

FOR MINE WATERS . R.J.Bowell . SRK Consulting, Windsor Court, 1 Windsor Place, Cardiff CF10 3BX, Wales . Abstract. Sulfide oxidation is a common phenomenon associated with many mined ore bodies and extracted or processed waste. Where the products of these chemical reactions …

A Review on Novel Techniques for Chalcopyrite Ore Processing

Jan 01, 2012· 1.2. Chalcopyrite Ore Production The sulfide ore minerals including chalcopyrite (CuFeS 2), sphalerite (ZnS), galena (PbS) provide the major sources of the world's base metals (Cu, Zn, Pb, respectively), whereas pyrite is virtually ubiquitous as a metalliferous mineral in sulfide ore deposits (Crang and Vanghan, 1994).The first step in recovering metal from their mineral is that of finding ...

Acid leaching of oxide–sulfide copper ore prior the ...

deeper into the main sulfide ore deposit. So far, only the ore body C1-Copper Mine Cerovo is opened, this body is under exploitation. The majority of oxide–sul-fide batches from "Cerovo – C1–4" ore bodies contain carbonate minerals, with some cuprite and chrysocolla which may easily leach. From all ferrous minerals the

Helping to solve mining's costliest environmental ...

Jan 01, 2008· Mining and milling sulphide ore deposits generates large quantities of sulphide-bearing waste rock and finely crushed mill tailings. When exposed to oxygen and water, these waste products generate acid effluents, which can leach heavy metals that contaminate soil and water supplies.

MINING LEAD-ZINC (GALENA/SPHALERITE) SULPHIDE ORE VEIN …

Sep 18, 2013· Artisanal mining of galena within Akwana area of Benue/Taraba state, Nigeria

The World's 10 Most Deadly Minerals - Geology In

Galena is one of the most abundant and widely distributed sulfide minerals.Galena is the principle ore of lead, and forms glistening silver cubes with almost unnaturally perfect shapes. Although lead is normally extremely flexible, the sulfur content of galena makes it extraordinarily brittle and reactive to chemical treatment.

Sulfide Mining | Minnesota Center for Environmental Advocacy

Sulfide-ore mining for copper and nickel, however, has never been attempted here. In the case of PolyMet, MCEA has led the fight for accountability and true science-based decision-making. MCEA lawyers and experts have time and again cast light on the flaws inherent in the PolyMet proposal, first …

FROTH FLOTATION : RECENT TRENDS Flotation of Sulphide …

History of Sulphide ore flotation dates back to beginning of 20th century. Sulphide ores are major sources of base metals like Copper, Lead, Zinc, Nickel, Cobalt etc. Beneficiation of these base metal sulphide minerals is predominating through froth flotation technique. This technology has …

Sulphide Leaching - Mineral Processing & Metallurgy

Jun 24, 2015· Copper sulphate can be used to separate Copper from Nickel in a sulphide ore or Copper from Fe in Cu -Fe sulphide ore. CuSO 4 solution can also be used for removing Pb, Zn, and Fe from copper sulphide ores. In presence of oxidizing agents: Ferric ion: Ferric sulphate or chloride react with metal sulphides liberating elemental sulphur, e.g.

Recovery of Silver, Gold, and Lead From a Complex Sulfide ...

reactive and less affected by suUidJ~. minerals in complex ores; but, as with caustic cyanide, gold and silver extrac­ tion is usually low with complex sulfide gold-silver ores. A procedure to extract silver from sulfide ores with FeC13 was patented by Hey in 1922 (6). Considera­ ble work was completed by-Wong (7) to re­

Sulfide - Wikipedia

Sulfide (British English also sulphide) is an inorganic anion of sulfur with the chemical formula S 2− or a compound containing one or more S 2− ions. Solutions of sulfide salts are corrosive. Sulfide also refers to chemical compounds large families of inorganic and organic compounds, e.g. lead sulfide and dimethyl sulfide. Hydrogen sulfide (H 2 S) and bisulfide (SH −) are the conjugate ...

Leaching of a low-grade, copper-nickel sulfide ore. 1. Key ...

chalcocite. Together with dump leaching of mine waste, heap leaching contributes about 20% of annual world copper production (Watling, 2006). The leaching of several low-grade nickel sulfide ores has also been investigated in pilot-scale heaps (Watling, 2008), including test heaps at Radio Hill, Western Australia and at Talvivaara, Finland.

What is Sulfide Mining? | Mining Action Group

Metallic sulfide mining (aka hard rock mining) is the practice of extracting metals such as nickel, gold and copper from a sulfide-rich ore body. Sulfides are a geologic byproduct of mining in this area, and by exposing sulfides to the air and water in our atmosphere, sulfuric acid can be created — threatening to …

Processing gold sulphide ore - Gold Refining Forum.com

Apr 14, 2014· If your processing a high sulphide content gold ore this will not work. With high sulphide gold ore break it down and seperate it till all you see is the yellow shiny stuff then take that and put it into a hydrocloric acid solution and let it sit for a week or so swirling it in bottom of container occasionally.

Complex Sulphide Ores: Processing Options | SpringerLink

Complex sulphide ores represent considerable reserves and resources in base non ferrous metals, in precious metals, and in sulphur. Some of their essential characteristics, which allow a general presentation of the complexity of their processing options, from the ore to the pure metals or finished products, have already been presented by the author (1,2).

How is copper obtained from its sulphide ore? What is the ...

Hari om, you are asking a question as to : " How is copper obtained from its sulphide ore? What is the equation of this reaction?". Hari om. Hari om. ANSWER :[ Excerpts] COPPER MINING AND EXTRACTION: SULFIDE ORES : It's hard to imagine a world wit...

Acid mine drainage from sulphide ore deposits | SpringerLink

Appreciable work has been done on acid mine drainage from coal mines. However sulphide ore deposits present an additional environmental threat; many sulphides are oxidized by acidic waters containing Fe (III), and release alarming amounts of heavy metals into affected drainage.

MASSIVE SULPHIDE DEPOSITS - Earth Sci

The average massive sulphide camp in Canada has about 9 deposits, but ranges from four (Manitowadge) to 21 (Noranda), However, an individual deposit may consist of a number of closely associated, discrete lenses ranging from several thousand to several million tons in size …

Hot and/ore Reactive Ground - Orica

Hot and/ore Reactive Ground. While not common, reactive ground is potentially a highly dangerous and frequently misidentified hazard. A runaway reaction between sulphide minerals and ammonium nitrate can lead to spontaneous and premature detonation of one or more blastholes at any time from a few minutes to several days after loading.. Hot ground is rock heated to more than 55 degrees due to ...

Sulfide Mining and Human Health

to the negative effects of sulfide mining.5 Ore that contains commercially desired metals often contains other metals includ-How Acid Mine Drainage is Generated Sulfide mining differs significantly from iron ore (taconite or ferrous) mining because it has the potential to generate acidic pH. Copper and nickel typically are bound to …

Field Examples and Mitigation Strategies for Sulphide ...

Nickel sulphide ore Nickel sulphide concentrate. Rosenblum et al., Min Eng 2017 • Very effective on the Ni ore • Not effective on the Ni concentrate • Application rate 5kg/t. Reactive Pastefill (Ni ore): Using High Pyrrhotite Tailings. Zarassi & Hassani, 2011, 2014. 11. ... (Raglan Cu-Ni …

Science Desk: How Sulfide-Ore Copper Mines Pollute | Save ...

May 08, 2015· Sulfide-ore copper mining is a risky type of mining that has never been done before in Minnesota. No matter the method, sulfide-ore copper mines proposed near the Boundary Waters would extract trace amounts of metals from large volumes of rock. Rock is blasted from pit walls and sorted into metal-bearing ore and waste rock.

Mining and Extraction: Oxide Ores - processes for ...

Pyroprocessing Sulfide Ores Provides Acid for Leaching. The process used to treat sulfide copper ores begins at the mine site, where the copper-bearing minerals are physically separated from the rest of the rock. The flow diagram below shows how the percentage of copper increases as the ore is …