The present invention is directed to methods that can be used in the enrichment of metal sulfide ores in desired minerals in cases where the ores have sulfidecontaining gangues. The method involves adding an oxidant such as hydrogen peroxide to slurries prepared from the ores during, or immediately prior to froth flotation.
Magmatic sulfide deposits (NiCuCo) are commonly hosted by mafic and ultramafic igneous rocks. The sulfide ores (often enriched in platinum group elements) are the result of the separation of an immiscible sulfide melt from the sulfursaturated silicate melt.
Alterations in Surfaces and Textures ... of a Complex Sulfide Ore ... The bacterial cultures used in this study were originally enriched from samples col
Today, because of advances in the extraction of base metals from nonsulfide ores, these deposits have become particularly valuable and found an important economic ...
A study of the trace sulfide mineral assemblages in the Stillwater Complex, Montana ... eventually producing a platinum group elementenriched sulfide ore zone, ...
18 sulfide abundance in magmatictextured silicatesulfide ores between ores with up to about ... including PGEenriched "Reefs" (Mungall and Naldrett, 2008;
Sulfide ores of copper are almost invariably leached near the surface, ... and a zone of lowergrade primary ore below the enriched zone.
Copper sulfide ores can be rapidly roasted in heated air enriched with oxygen to form impure copper and this ... purification of copper by electrolysis of ...
After mixing with limestone the filtered concentrated ore is roasted in air or oxygenenriched air on a moving belt. Most of the sulfide is converted to lead(II) oxide: Sulfur dioxide gas can then be cleaned and used to make sulfuric acid. The lead(II) oxide is heated and made into lumps, a process known as sintering.
Sulfide ores. Secondary sulfides – those formed by supergene secondary enrichment – are resistant to sulfuric leaching. These ores are a mixture of copper carbonate, sulfate, phosphate, and oxide minerals and secondary sulfide minerals, dominantly chalcocite but other minerals such as digenite can be important in some deposits.
Copper Mining and Extraction: Oxide Ores. ... Most of the copper ores mined today are oxide or sulfide ores. Extraction of sulfide ores ... enriched copperbearing ...
geologian tutkimuskeskus geological survey of finland ... bacterial leaching of sulfide ores: mineral ... originally enriched from
Environmental Guidelines for Nickel Smelting and Refining ... dry sulfide ore containing ... is fed to the furnace along with preheated air, oxygenenriched air
Economic geology Magmatic ore ... volatileenriched, ... The hydrothermal alteration in the footwall of the massive sulphide ores is concentrically zoned ...
Primary hydrothermal sulphide ore grades at between % and 1% copper. Subsequent weathering and uplifting created a barren, leached cap, up to 180m thick, over a high grade supergene enriched ore, both overlying the primary sulphides.
Minerals, an international ... The aim of this study was to improve the dissolution of copper sulfide ore composed ... Elements commonly enriched in the zinc ore ...
Mineralogy and geochemistry of sulfide ores in oceanfloor hydrothermal fields associated with serpentinite ... The Rainbow ore is enriched in heavy 34 S ...
The sulfide ore deposits can form during the mining, ... nutrient medium was inoculated by the mine water samples to obtain the enriched bacterial culture.
The Hietaharju PGEenriched komatiitehosted sulfide deposit in the Archean Suomussalmi greenstone belt, eastern ... that enriched the Hietaharju ore ...
Which process is used for enrichment of sulphide ores and oxide ores. ... manganese oxide ore (MnO 2: pyrolusite) are enriched by magnetic separation.
Enriched zone. Copper ions that move down into this reducing environment form a zone of supergene sulfide enrichment. Covellite CuS, chalcocite Cu 2 S and native copper Cu are stable in these conditions and they are characteristic of the enriched zone.
spinel composition as a guide to sulfide ores. Zincian spinel from the Independence, ... unnamed prospect) are depleted in Zn and enriched in Mg and Fe.
Introduction. Ore minerals are fundamental to civilization. They are also increasingly more difficult to find. The surface, oxideenriched (supergene) ore bodies have ...
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