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Extracting Gold From Ore Facts Yahoo Answers

Dec 12 2012 extracting copper from its ores the method used to extract copper from its ores depends on the nature of the ore sulphide ores such as chalcopyrite are converted to copper by a different method from silicate carbonate or sulphate ores getting copper from chalcopyrite cufes2 chalcopyrite also known as copper pyrites and similar sulphide.

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Method To Extract Metal From Iron Ore Yahoo Answers

Aug 03 2011 to be useful the metals have to be extracted from whatever they are mixed with a metal ore is a rock containing a metal or a metal compound in a high enough concentration to make it economic to extract the metal the method used to extract metals from the ore in which they are found depends on their

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How Much Pure Gold Has Been Taken From

Aug 16 2009 the major gold producers increased their reported reserves to 7197 million oz or over 22000 tonnes at the end of 2005 according to metals economics group assuming a 10 recovery loss when the ore is extracted this would amount to 14 years of gold production at 2005s

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Colorado Gold Rush Articles Colorado Encyclopedia

Bill chappell epa says it released 3 million gallons of contaminated water into river the twoway npr updated august 14 2015 the colorado gold rush western mining history july 16 2009 colorado mine tours amp gold rush towns coloradocom last updated june 9 2015 duane smith the trail of gold and silver mining in colorado 1859–2009 boulder university press of

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How Is Iron Extracted From Iron Ore Yahoo Answers

Dec 04 2006 iron is produced in a cupola furnaceiron ore furnace coak scrap iron and limestone are put into the furnace in layers the furnace is lit and when it gets to roughly 1750 degrees the cast iron is tapped out and put into moulds or ingots depending on what type of industry the iron is made forthere are a few different grades of iron adding carbon gives a better

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What Is Dory Gold What Are Its

Dec 07 2009 dory gold or dore gold is gold that has been directly extracted and refined from ore at the mine into a bar containing 90 gold this is called a dore bar these dore dory bars are sent from the mine to an external refinery where it will be melted down and purified into a new bar that is 9999 parts per thousand pure

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How Copper Produced From Ore To Pure Copper Yahoo Answers

Dec 12 2012 extracting copper from its ores the method used to extract copper from its ores depends on the nature of the ore sulphide ores such as chalcopyrite are converted to copper by a different method from silicate carbonate or sulphate ores getting copper from chalcopyrite cufes2 chalcopyrite also known as copper pyrites and similar sulphide

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What Is The Reaction Between Gold And Mercury Yahoo Answers

Dec 20 2009 it is called an amalgamation mercurygold amalgams are used to remove gold from ores silver and mercury amalgam is also used for dental fillings but it is falling out of favor due to the potential for mercury

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Xrf Opinion Of Iron Ore Sample Yahoo Answers

Dec 24 2011 hi there i found a rock i believed to be iron ore i took the rock in to a gold store and asked them to xrf analyse it for me the results came out as iron98 palladium08 gold04 rhodium001 and quite a few more scarce elements i thaught the iron would be tied up with oxygen as iron oxide and i wouldnt of thaught the sample would contain so much other vualable metal if the

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Gold Chemical Element

Extraction there are at least two main ways to remove gold from its ores one is to mix an ore with mercury metal mercury combines with gold in the ore to form an amalgam an amalgam is a mixture of two or more metals one of which is mercury the gold amalgam is then removed from the

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Why Is Phytomining Used To Extract Gold

Feb 03 2012 phytomining is used to concentrate the target metal in the plant material so providing an enriched source for processing there are zn and pb rich ores available for conventional extraction but in the case of au phytomining allows the processing of very low grade

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Extracting Gold From Ore Facts Yahoo Answers

How do you extract gold from its ore answerscom to extract minerals there are three steps these steps are mining smelting refining first the ore must be mined then it goes to a process where it is smelted to read

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To Extract Gold From Its Ore The Ore Is

Jan 23 2016 to extract gold from its ore the ore is treated with sodium cyanide solution in the presence of oxygen and water 4 au s 8 nacn aq o2 g

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Why Mercury Is Stored In Iron Bottle Yahoo Answers

Jan 30 2011 mercury disolves with gold zinc amp other metals to form amalgams but mercury does not react disolve etc with iron thats the main reason mercury is stored in iron containers this comes in handy for storage amp transporting amalgams have uses in dentistry amp is used to extract gold from

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How Lead Is Been Extracted From Its Ore Yahoo Answers

Jul 03 2008 lead is usually found in ore with zinc silver and most abundantly copper and is extracted together with these metals the main lead mineral is galena pbs which contains 866 lead other common varieties are cerussite pbco3 and anglesite pbso4 lead ore galena is found commonly in northeast

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Is A Testicular Blow Exponentially More Painful Than

Jul 28 2016 a claim that getting hit in the testicles is more painful than giving birth to a child appears to be based on completely invented

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How Do You Extract Gold From Rock Ore By

Jun 03 2008 crush the rock to powder and then place the stuff in a shallow pan with water sluicing the pan around will propel the dross over the edge the gold being heavier will collect at the

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What Is The Crystal Structure Of Gold Yahoo Answers

Mar 12 2010 today more often than not gold is extracted from ores these ores often contain relatively little gold some of these processes cause environmental concern the ore is crushed to a powder so as to expose the small gold particles these are dissolved by treatment of the rock with cyanide solution in air the result of this is a gold cyanide

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How Did The Ancients Extract Copper From Its Ore Yahoo

Mar 13 2013 the process the concentrated ore is heated strongly with silicon dioxide silica and air or oxygen in a furnace or series of furnaces the copper ii ions in the chalcopyrite are reduced

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Where Is Gold Found On Earth Yahoo Answers

May 04 2008 it can be found as small nuggets or flakes but sometimes it is in gold ore you can’t see the gold in gold ore the ore is crushed until it is like sand there is a long chemical process that separates the gold from the ore gold is mined in south africa the united states nevada california australia canada and

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How To Extract Gold Platinum Rhodium

May 08 2008 i have access to a large amount of black sand ore concentrate which has assays showing extremely large concentrations of gold platinum and rhodium but many people say it is worthless because it is impossible to extract the precious metals from the junk especially iron can the precious metals be extracted at all if they can be extracted can it be done

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To Extract Gold From Its Ore The Ore Is

May 19 2015 to extract gold from its ore the ore is treated with sodium cyanide solution in the presence of oxygen and water update 4au s 8nacn aq o2 g 2h2o 1

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How To Extract Pure Gold Out Of Gold Alloy Yahoo Answers

May 31 2007 to extract gold out of ore or other metals one way people have used for a while and still use is adding cyanide to the mixture which causes the gold to ionize and go into solution but if you were to do that with gold and copper both would go into solutionbut you could add a chelating agent that specifically targets copper to form an

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What Are Mineral Ores Used For Yahoo Answers

Oct 08 2020 as feed for extraction of the metal contained in the ore usually most ores are not valuable because of the mineral itself but because of the value of the metal that is contained in the mineral we have to free that metal from the mineral and separate it away from the nonvalue elements in order to get a pure metal product that we can use

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What Are Some Examples Of Ore Minerals Yahoo Answers

Oct 08 2020 however there is often gold and other metals in the pyrite that are worth mining and treating and thus the pyrite can be an ore many gold mines are pyriterich zones so the target mineral is often the pyrite because the pyrite contains the gold the pyrite itself isnt worth much it is the gold inside that has

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What Do U Mean By Gangue And Ore Yahoo Answers

Oct 30 2009 ore mined from the earth are usually contaminated with large amount of impurities such as soilsand etccalled ganguethe impurities must be removed from the ore prior to the extraction of the metalthe process used for removing gangue from ore are based on the differences between the physical or chemical properties of the gangue and the

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Choosing A Location To Pan For Gold

One of the most important steps in gold panning is finding a suitable location you can be the most experienced prospector around but unless theres gold in the ground or flowing down the stream you simply arent going to have any luck on the other hand even a beginner can walk away with a nice chunk of valuable gold if theyre in the right

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The Colorado Gold Rush – Western Mining History

The colorado gold rush originally known as the pikes peak gold rush started in 1858 and was the second largest mining excitement in united states history after the california rush a decade earlier over 100000 people participated in this rush and were known as fiftyniners a reference to 1859 the year the rush to colorado

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