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Why copper matte is put in silica lined ...

Why copper matte is put in silica lined converter?

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Copper matte consists of a mixture of `Cu_(2)S " and " Cu_(2)O`. Along with that, it also contains small amount of FeS and FeO. It is put in a silicon lined converter known as Bessemer converter. Some silica `(SiO_(2))` is also added and a blast of hot air is blown. As a result, a number of reactions take place.
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What happens when : (i) Cu_(2)O undergoes self reduction in a silica lined converter. (ii) Haematite oxidises carbon to carbon monoxide.

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Copper matte contains

DINESH PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS -N.C.E.R.T. Exercise
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  2. Write down the chemical reactions taking place in the extraction of zi...

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  3. State the role of silica in the metallurgy of copper.

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  4. What is meant by the term "chromatography"?

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  5. What criterion is followed for the selectrion of the stationary phase ...

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  6. Describe a method for refining nickel.

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  7. How can you separate alumina from silica in a bauxite ore associated w...

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  8. Giving examples differentiate between roasting and calcination.

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  9. How is cas iron different from pig iron ?

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  10. Why copper matte is put in silica lined converter?

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  11. What is the role of cryolite in the metallurgy of aluminium?

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  12. How is leaching carried out in case of low grade copper ores?

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  13. Why is zinc not extracted from zinc oxide through reduction using CO?

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  14. The value ofDelta (f) G^(Ө) for formation of Cr(2) O(3) is – 540 kJmo...

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  15. Out of C and CO, which is better reducing agent for ZnO?

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  16. The choice of a reducing agent in a particular case depends on thermod...

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  17. Name the processes from which chlorine is obtained as a by-product. Wh...

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  18. What is the role of graphite rod in the electrometallurgy of aluminium...

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  19. Outline the principles of refining of metals by the following methods ...

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  20. Predict conditions under which Al might be expected to reduce MgO.

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