how is calcium extracted from its ore

extraction of metals from ores - acs publications

the parts of the world from which they come the following table is based on the year in which the figures are more normal than in the war years table 1 leading producers of common metals in 'aluminum antimony beryllium bismuth cadmium 'calcium chromium ore 'cobalt 'copper gold

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magnesium extraction-metalpedia

magnesium extraction brife introduction magnesium is found in solution in sea-water about 1 3 kg m-3 magnesium and in natural brines it is also found extensively in the ores magnesite mgco3 and dolomite mgco3 caco3 both of the two types of resources can be used as raw materials to manufacture magnesium

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bbc - gcse bitesize methods of extracting metals

ores are naturally occurring rocks that contain metal or metal compounds in sufficient amounts to make it worthwhile extracting them for example iron thus the method of extraction of a metal from its ore depends on the metal's position in the reactivity series potassium sodium calcium magnesium aluminium extract

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the blast furnace s-cool the revision website

the method three substances are needed to enable to extraction of iron from its ore the combined mixture is called the charge iron ore haematite - often contains sand with iron oxide fe2o3 limestone calcium carbonate coke - mainly carbon the charge is placed a giant chimney called a blast furnace the blast

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how to extract calcium from limestone ores sciencing

apr 24 calcium is an element with metallic properties it's highly reactive so it doesn't occur in elemental form in nature limestone is a naturally occurring mineral high in calcium carbonate or caco3 it's possible to extract pure calcium from calcium carbonate through a multi-stage process requiring special

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what is the use of limestone of in the extraction of iron from

limestone is used in iron extraction to remove impurities from the iron and becomes molten slag the calcium carbonate cao3 in limestone catabolically reacts forming calcium oxide cao and carbon dioxide co2 cao is highly reactive when subjected to the extreme heat of the furnace cao can react with impure iron

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gcse chemistry - extraction of metals - what is a metal ore

that is used in the uk come from recycled scrap metal how is a metal extracted from its ore? the method used to extract a metal from its ore depends on where the metal is in the reactivity series metals above carbon in the reactivity series a metal above carbon in the reactivity series potassium sodium lithium calcium

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bbc - gcse bitesize methods of extracting metals

ores are naturally occurring rocks that contain metal or metal compounds in sufficient amounts to make it worthwhile extracting them for example iron thus the method of extraction of a metal from its ore depends on the metal's position in the reactivity series potassium sodium calcium magnesium aluminium extract

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how to extract calcium from limestone ores sciencing

apr 24 calcium is an element with metallic properties it's highly reactive so it doesn't occur in elemental form in nature limestone is a naturally occurring mineral high in calcium carbonate or caco3 it's possible to extract pure calcium from calcium carbonate through a multi-stage process requiring special

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extracting a metal from its ore - chymist com

copper tin lead and iron are more reactive and must be heated with carbon to extract the metals aluminum calcium sodium and other active metals are extracted using electrolysis copper can be extracted from its ores by reduction one of the common copper ores malachite which is composed of mainly copper

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bbc - gcse bitesize metal ores

a secondary school revision resource for edexcel gcse science about chemicals and extracting metals the method used to extract a given metal from its ore depends upon the reactivity of the metal and so how stable the ore is very reactive metals are magnesium + oxygen magnesium oxide 2mg + o2 2mgo

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extraction of metals - introduction - chemguide

the extraction of metals - an introduction this page looks at the various factors which influence the choice of method for extracting metals from their ores including reduction by carbon reduction by a reactive metal like sodium or magnesium and by electrolysis details for the extraction of aluminium copper

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calcium - wikipedia

calcium is a chemical element with symbol ca and atomic number 20 an alkaline earth metal calcium is a reactive pale yellow metal that forms a dark oxide-nitride layer when exposed to air its physical and chemical properties are most similar to its heavier homologues strontium and barium it is the fifth most abundant

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pmofld1

whether or not a metal-bearing deposit is classified as an ore a reserve or a resource is a question of economics an ore is a resource that can be extracted at a profit a reserve is a resource currently uneconomical to mine or greater than existing demand a resource becomes a reserve or an ore if the proper technologies

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gcse chemistry - extraction of metals - what is a metal ore

that is used in the uk come from recycled scrap metal how is a metal extracted from its ore? the method used to extract a metal from its ore depends on where the metal is in the reactivity series metals above carbon in the reactivity series a metal above carbon in the reactivity series potassium sodium lithium calcium

Get Price

extraction of metals - introduction - chemguide

the extraction of metals - an introduction this page looks at the various factors which influence the choice of method for extracting metals from their ores including reduction by carbon reduction by a reactive metal like sodium or magnesium and by electrolysis details for the extraction of aluminium copper

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ore - wikipedia

the grade or concentration of an ore mineral or metal as well as its form of occurrence will directly affect the costs associated with mining the ore the cost of extraction must thus be weighed against the metal value contained in the rock to determine what ore can be processed and what ore is of too low a grade to be worth

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bbc - gcse bitesize extraction using carbon

metals are extracted from ores an ore is a rock that contains enough of a mineral metal compound for the metal to be extracted from it most metals are extracted from an ore by reduction with carbon or by electrolysis extraction using carbon metals such as zinc iron and copper are present in ores as their oxides each of

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bbc - gcse bitesize metal ores

a secondary school revision resource for edexcel gcse science about chemicals and extracting metals the method used to extract a given metal from its ore depends upon the reactivity of the metal and so how stable the ore is very reactive metals are magnesium + oxygen magnesium oxide 2mg + o2 2mgo

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extraction of reactive metals

how are they 'won' from their ores? high reactivity sodium these metals cannot be magnesium extracted with aluminium carbon carbon zinc these metals can be extracted with iron look at the table below that summarizes how a metal's method of extraction depends on its position in the reactivity series

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extraction of metals from ores - acs publications

the parts of the world from which they come the following table is based on the year in which the figures are more normal than in the war years table 1 leading producers of common metals in 'aluminum antimony beryllium bismuth cadmium 'calcium chromium ore 'cobalt 'copper gold

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metal extraction concepts chemistry tutorial - aus-e-tute

chemical concepts that determine how a metal can be extracted from its ore a tutorial suitable for chemistry students ore less energy to extract metal from ore electrolytic extraction thermal reduction native metals roasting ore in air potassium > calcium > sodium > magnesium

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magnesium extraction-metalpedia

magnesium extraction brife introduction magnesium is found in solution in sea-water about 1 3 kg m-3 magnesium and in natural brines it is also found extensively in the ores magnesite mgco3 and dolomite mgco3 caco3 both of the two types of resources can be used as raw materials to manufacture magnesium

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patent us - process of extracting gold platinum silver

my invention has for its object an improvement inthe said ways of industrial extraction particularly for gold platinum silver nickel and copper in the case where ores still contain sulfurets in spite of their previous calcination it would be necessary to add to the solution of calcium magnesium etc chlorid a small quantity

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calcium chemical element - structure reaction water uses

calcium metal was not prepared in a pure form until when english chemist humphry davy - passed an electric current through molten melted calcium while studying nitrous oxide gas he discovered that its effects often made him feel very happy or very sad it is usually mined from open-pit quarries

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bbc - gcse bitesize extraction using carbon

metals are extracted from ores an ore is a rock that contains enough of a mineral metal compound for the metal to be extracted from it most metals are extracted from an ore by reduction with carbon or by electrolysis extraction using carbon metals such as zinc iron and copper are present in ores as their oxides each of

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the extraction of iron - chemistry libretexts

nov 29 extracting iron from iron ore using a blast furnace the common ores of iron are both iron oxides and these can be reduced to iron by heating them with carbon in the form of coke coke is produced by heating coal in the absence of air coke is cheap and provides both the reducing agent for the reaction

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calcium chemical element - structure reaction water uses

calcium metal was not prepared in a pure form until when english chemist humphry davy - passed an electric current through molten melted calcium while studying nitrous oxide gas he discovered that its effects often made him feel very happy or very sad it is usually mined from open-pit quarries

Get Price

types of extraction s-cool the revision website

when the metal is dug up a method must be used to separate the metal from the rest of the ore this is called extracting the metal the method of extraction depends on how reactive the metal is the more reactive the metal the more difficult it is to extract from its compound electrolysis electrolysis is the most powerful

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the extraction of iron - chemistry libretexts

nov 29 extracting iron from iron ore using a blast furnace the common ores of iron are both iron oxides and these can be reduced to iron by heating them with carbon in the form of coke coke is produced by heating coal in the absence of air coke is cheap and provides both the reducing agent for the reaction

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