C6.1 Improving Processes And Products
No description yet. This curated deck is ready for daily study.
Card preview (19)
Process carried out to extract a metal from its ore
Reduction process
2 methods used to extract metals from ores
Reduction process with Carbon Electrolysis
How is iron extracted from its ore
Blast furnace by reduction process
Catalyst used for contact process stage 2
Vanadium (V) oxide V2O5
What compound is made in stage 3 of the contact process
Oleum H2S2O7
Compound found in malachite
Copper carbonate
Compound in bauxite
Aluminium oxide
Compound in haematite
Iron (III) oxide
Raw materials of the blast furnace
Iron ore Coke Limestone Air
Chemical name for slag
Calcium silicate CaSiO3
Main reducing agent in the blast furnace
Carbon monoxide
What is added to reduce the melting point of aluminium oxide during electrolysis
Molten Cryolite
Cathode in electrolysis of aluminium oxide
Graphite lining of the cell
Which electrode is aluminium formed at during electrolysis of aluminium oxide
Cathode
Gas released during electrolysis of aluminium oxide
Oxygen
Why anodes have to be replaced regularly in electrolysis of aluminium oxide
Oxygen reacts with the carbon rods making carbon dioxide
Haber process
N2 + 3H2 ⇌ 2NH3 Nitrogen obtained from liquid air through distillation Hydrogen obtained from natural gas (CH4) or electrolysis of water. IRON CATALYST USED
Contact process
Stage 1: S(s) + O2(g) -> SO2(g) Stage 2: 2SO2(s) + O2(g) ⇌ 2SO3(g) Stage 3: SO3(g) + H2SO4(aq) -> H2S2O7(l) Oleum H2S2O7(l) + H2O(l) -> 2H2SO4(aq)
Batch production and continuous process
Batch production = low production rate Continuous process = high relative cost of equipment