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State the role of silica in the metallug...

State the role of silica in the metallugy of copper.

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Silica acts as a flux to remove the impurities o. (oxides of irọn) remaining in the matte by forming. silicate, FeSiO ._t. which is a fusible slag. beginaligned SiO_2+FeO rarrFeSiO_3 Silica Slag
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V PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-QUESTION BANK
  1. Write down the reactions taking place in different zones in the blast...

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  2. Write chemical reactions taking place in the extraction of zinc from z...

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  3. State the role of silica in the metallugy 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 selection of the stationary phase i...

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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 'cast iron ' different from 'pig iron'?

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  10. All ores are minerals, but all minerals are not ores. Why?

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

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  12. Alumina is mixed with cryolite and subjected to electrolysis to extrac...

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

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

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  15. The value of Deltar G for formation of Cr2 O3 is -540 kJmol^-1 and th...

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

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

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  18. Name the process from which chlorine is obtained as a by-product.What...

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  19. What is the role of graphite rod in the electrometallugy of aluminium?

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

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