greetings please assist me with Pyrometallurgy questions.Your assistance will be highly appreciated thank you in advance

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answerhappygod
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greetings please assist me with Pyrometallurgy questions.Your assistance will be highly appreciated thank you in advance

Post by answerhappygod »

greetings please assist me with Pyrometallurgy questions.Your
assistance will be highly appreciated thank you in
advance
Give the steps of lead metal production from lead sulphide
concentrate (PbS) via a pyrometallurgical process. (10 marks)
Give the chemical reactions of sulphation roasting of lead
sulphide or galena (PbS) and the range of temperature for
sulphation roasting.(10marks) a) Give the chemical reactions zinc
oxide (ZnO) reduction in a retort furnace by carbon and carbon
monoxide. b) what is the range of temperature for zinc oxide
reduction in a retort furnace? c) what is the main reaction and
why? (10)
Determine the energy in Mega-Joule (MJ) required to produce 300g
of aluminium metal at 900°C after reduction of aluminium oxide
(Al2O3) by means of carbon reductant in fused bath electrolyse
cell. The molar mass of Al:27g/mol; Al2O3: 102g/mol; C:12g/mol and
CO2:44g/mol and 1MJ =10-6J. The reagents aluminium oxide and carbon
reductant enter the reactor at 25°C and the off-gas CO2 leave the
reactor at 700°C. The reaction of reduction is the following.
2Al2O3 + 3C =4Al + 3CO2 Use the table of enthalpy data and show all
the calculations(20)
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