extraction of gold and platinum from their ores

  • Gold extraction Wikipedia

    Gold extraction refers to the processes required to extract gold from its ores. This may require a combination of comminution, mineral processing,...

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  • BBC Future Your old phone is full of untapped precious metals

    Oct 18, 2016 ... There's gold, platinum and other valuable materials in every phone the ... and how we might best extract those materials is one of the topics that will be ... a tonne of gold ore and 6.5 times more silver than a tonne of silver ore.

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  • Production, Manufacturing and Extraction of Silver, Gold, Copper ...

    Aug 1, 2016 ... Production, Manufacturing and Extraction of Silver, Gold, Copper, Magnesium, Chromium, Platinum, ... How is Platinum Extracted from its Ore?

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  • Learn About Platinum The Balance

    Platinum is a dense metal that is often used in jewelry for its attractive, silver like ... South Americans also made ornaments from gold and platinum alloys. Spanish ... extracting the metal from ore, which is very similar to the process used today.

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  • How can I extract platinum group metals from Cu based rock?

    Imagine that I have a copper based ore which also consists platinum group metals. .... the copper, then from the residue the platinum, gold, etc. are extracted.

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  • Rock Collection, native metals

    Only gold, silver, copper and the platinum metals occur in nature in larger ... to metal, since the process of extracting metals from their ores, smelting, is thought to...

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  • gold processing Britannica

    gold processing: Preparation of the ore for use in various products. ... These images are derived from two properties of gold, its colour and its ..... of gold, silver, and platinum group metals (except osmium and ruthenium) in ores or concentrates.

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  • GCSE Science revision notes. GCSE Science Metal extraction ...

    lead. copper. silver. gold. least reactive. platinum. Reactivity series of metals. Metals either exist naturally or can be extracted from their ore in one of three ways:.

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  • 2 answers: Can gold, silver and platinum coexist in a single rock/ore ...

    Gold and silver is often found in the same ore, Most gold mines are also ... produce also copper. platinum is mostly mined single but that doesn't mean that there...

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  • Separating the Platinum Group Metals by Liquid Liquid Extraction

    To extract the platinum group metals from the ore, and to refine them to the very high purity required for their many applications, requires a multitude of complex ... for the separation of copper, cobalt and gold. The separation relies on the...

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  • Gold Mining & Mining Shares Guide from BullionVault

    Gold is rarer even than platinum, although because of platinum's more even ... So gold ore needs to be concentrated by about 1,000 times above its ... There are several processes used in gold mining for extracting, and then purifying it.

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  • BBC GCSE Bitesize: Methods of extracting metals

    The Earth's crust contains metals and metal compounds such as gold, iron oxide and aluminium ... Thus the method of extraction of a metal from its ore depends on the metal's position in the reactivity series: ... copper; silver; gold; platinum.

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  • Mining your iPhone: Recycling iPhones yields gold, silver, platinum ...

    Apr 3, 2013 ... Mining your iPhone: Recycling iPhones yields gold, silver, platinum, and more ... and recyclers extract precious metals from ore and, apparently, phones, has ... At the moment, there are no really good environmentally friendly...

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  • Direct leach approaches to Platinum Group Metal (PGM) ores and ...

    Platinum Group Metals (PGMs), often with associated gold, have very few ... They are classified as both precious and critical metals due to their scarcity and their wide ... Leaching tests were performed to determine feasible means of extracting...

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  • BBC GCSE Bitesize: Methods of extracting metals

    The Earth's crust contains metals and metal compounds such as gold, iron oxide ... copper; silver; gold; platinum. extracted in various ways. The method of extraction of a metal from its ore depends on the metal's position in the reactivity series.

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  • Gold, Copper, Silver and Platinum banrepcultural

    Both the Spanish word for gold and its symbol come from the Latin aurum, which ... the sulphides into sulphates, and then chemically extracting silver metal. ... in the platinum group and associated with nickel, gold, copper and chromium ores.

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  • Extraction of gold from platinum group metal (PGM) ores ...

    Extraction of gold from platinum group metal (PGM) ores ..... silver and gold remain molten since their melting points are 327°C, 962°C and 1064°C, respectively.

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  • Extraction Of Gold, Platinum & Silver From Ore & Quartz eBay

    Extraction Of Gold, Platinum & Silver From Ore & Quartz .... Mercury is very poisonous to your health, especially when its fumes are burned into the air.

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  • Solvent Extraction and Its Applications on Ore Processing and ...

    solvent extraction technique and discusses in detail its applications in several fields focusing on ...... n octylamine to recover platinum from the gold and palla .

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  • extract platinum ores

    Is it more difficult to extract pure platinum or pure nickel from their respective ores ... Extraction of gold from platinum group metal PGM ores on ResearchGate the...

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  • Recovery of platinum group metals from oxide oresTML Process ...

    This patented TML Process for platiniferous oxide ores will yield recoveries of 95% for gold, 85% for platinum and over 65% for rhodium values.

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  • The Streets Are Paved With Gold (And Platinum) Forbes

    Jul 15, 2013 ... It's not quite the same as their being paved with gold but with the right technology it could ... Those for diesel engines might have 1 gramme of platinum per half kilo brick of the zirconia, ... That's actually a bit low for a pgm ore.

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  • How are metals extracted from their ores? Reference

    Metal extraction from ores occurs in many different ways involving physical, ... metals that can be of great commercial value, such as gold, platinum, copper, iron,...

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  • BBC GCSE Bitesize: Methods of extracting metals

    The method used to extract a metal from its ore depends upon the stability of its compound in the ore, which in turn depends ... copper; silver; gold; platinum.

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  • The Weekend Prospector

    Easy gold extraction for the weekend prospector and small miner. With information on how to get your gold, silver and platinum from your ores and black sand. ... old friend now deceased. There is a story here a good one MORE on that later!

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  • Plasma power: increasing precious metal yields from complex ores ...

    Apr 2, 2014 ... New radio frequency plasma technology, which heats complex ores to over ... yields of metals such as gold, silver and platinum from complex ores by ... of companies to submit their complex ores for processing and once we...

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  • How Is Gold Purified? Sciencing

    Apr 24, 2017 ... Initial Processing of DifferentTyes of Ore. If the gold is a low grade ore, then it is broken up into chunks that are then put in carefully lined pads...

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  • physical method of extracting gold

    Extraction and Refining of the Platinum Metals A COMPLEX CYCLE OF SMELTING, ... together with some gold, ... new gold extraction methods from its ores

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  • Gold Extraction Techniques MGS Precious Metals Blog

    Apr 6, 2016 ... Extracting gold from ores and alloys has evolved over the centuries to ... but there has always been at least one constant get as much gold as...

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  • Extraction of platinum, palladium and gold by cyanidation of ...

    The effects of cyanidation conditions (pH, time, particle size of the ore, additives to the leach, and oxidative pre treatments) at ambient temperatures on the...

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  • Platinum in Arizona - AZGS Document Repository

    Aug 3, 1980 ... There has been minor past production of the platinum group metals from ... producible quantities of platinum group metal ores in Arizona. ... platinum, palladium, gold and silver are extracted from the slimes at custom refiners...

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  • How is platinum extracted from its ore - Answers.com

    Platinum is rarely found on its own, but in combination with otherbase and precious metals. Extraction of the pure metal from ores isa complex. ... notably iron and sulfur, and concentrates PGM- platinum group metals- gold, platinum and...

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  • Extraction of Reactive Metals

    So we have to find a different way to extract them from their ores. ... Gold Platinum, can be found native and separated from rock. (Copper and silver are often...

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  • Characteristics of Gold - The New 49ers

    3 on a hardness scale of 10, which is one of the factors giving gold its tremendous ... Iridium (one of the platinum group metals) is one of few metals that have a ..... Most silver mining is done by the hardrock method of extracting ore from a lode...

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  • A comparison of methods for the determination of platinum in ores.

    Fire-assay and wet-extraction methods of determining platinum in ores have been ... to isolate platinum from base metals, the other platinum metals and gold.

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  • Ore - Wikipedia

    An ore is a type of rock that contains sufficient minerals with important elements including metals that can be economically extracted from the rock. The ores are extracted from the earth through mining; they are then refined ... The grade or concentration of an ore mineral, or metal, as well as its form of occurrence, will directly...

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  • A GOLD-PLATINUM-PALLADIUM LODE IN SOUTHERN NEVADA ...

    The discovery of platinum-bearing gold ore at the Boss mine, in southern ... process proving a failure, the property reverted to its original owners. Not until ..... high-grade ore, such as are now being extracted, will be found to give way to ore of...

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  • Electrolytic Gold Extraction - 911 Metallurgist

    Jun 6, 2016 ... 5 Using Electricity as a Method of Gold Extraction; 6 Concluding the ... and is so much desired on account of its value that the metallurgy of gold is not ... For all ores not containing gold in the free state chemical methods are necessary. .... The electrodes were of platinum and the solution was slowly agitated.

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  • About Platinum - Gold and Silver Mines

    We specialize in gold mines, silver mines, copper mines, and a wide variety of industrial ... in platinum ore; this he called rhodium, after the rose colour of its salts. ... the platinum metals require complex aqueous chemical processing for their...

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  • Patent US915705 - Process of extracting gold, platinum, silver ...

    Process of extracting gold, platinum, silver, nickel, copper. ... Suppose first that I have to extract both copper and nickel from oneof their common ores, say a very...

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