Metal extraction Converting sulphides to oxides

Methods of extraction The extraction of metals involves reduction, usually of metal oxides. This reduction of the metal compound is usually done in one of the following ways: •by heating with carbon (in the form of coke) •by heating with hydrogen •by heating with a more reactive metal (active metal) •by electrolysis Which method is used ...

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Fact sheet Electrolysis in ironmaking

There are two potential ways to separate metallic iron from the oxygen to which it is bonded in iron ore. These are through the use of chemical reductants such as hydrogen or carbon, or through the use of electro-chemical processes that use electrical energy to reduce iron ore. In electrolysis, iron ore is dissolved in a solvent of silicon

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PART 1 – Principles of metal extraction

• The extraction of metals involves reduction. In these reactions, the metal ions gain electrons (e.g. Fe 3+ → Fe, Na + → Na). • There are a number of different methods of metal extraction, including: • by heating with carbon (in the form of coke) • by heating with a more reactive metal (active metal) • by electrolysis of melts

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Algorithms Design for Fuzzy Control by Power Streams in …

The relevance of automated controlling of energy flows in conditions of underground extraction of iron ore has been shown. The vector of the object state, the main information parameters, controlling actions and disturbances have been determined. Algorithms of automated controlling have been developed using several strategies and controlling channels. …

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Iron/pm alloy separation

Iron will dissolve easily in dilute sulfuric acid, a 10% H2SO4 solution will form ferrous sulfate (a chemical that can be used to precipitate gold from solution), I normally use heat to dissolve iron in the dilute sulfuric acid.

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