Revision Ch 17. Extractive Metallury - Ores

Syllabus

Ores and minerals: Commonly occurring ores and minerals of
iron,
copper,
tin,
lead,
magnesium,
aluminium,
zinc and
silver.

Extractive metallurgy: Chemical principles and reactions only (industrial details excluded);
Carbon reduction method (iron and tin);
Self reduction method (copper and lead);
Electrolytic reduction method (magnesium and aluminium);
Cyanide process (silver and gold).



Ores and minerals of iron

Magnetite
Haematite
Limonite

Iron Pyrites
Copper Pyrites

Haematite is the principal ore.

Ores and minerals of Tin

Tin stone

Ores and minerals of Copper

Copper pyrites
Malachanite
Cuprite or ruby copper
Azurite
Copper glance

Minerals of Lead

Galena
Cerussite
Anglesite
Wulfenite
Stolzite

Minerals of Magnesium

Magnesite
Carnallite
Kiesserite
Schonite
Dolomite
Epsomite
kainite

Minerals of Alumium

Corundum
Diaspore
Bauxite

Cryolite

Feldspar, Mica, Kaolinite

Alunite or Alumstone
Turquoise
Aluminates of Magensium, Iron and Manganese

Minerals of Silver

Argentite
Pyrargarite
Proustite
Horn Silver

Minerals of Zinc
(from X book by Viraf Dalal)

Zincite
Calamine
Zinc Blende

Minerals of Gold

Mainly native gold

Nagyagite
Calaverite
Sylvanite
Krennerite