☰ Contents · Geography

Chemical industry and ferrous metallurgy

Lessons 16–17 · 2 lessons · P. Musayev, J. Musayev. Geography: Economic and Social Geography of Uzbekistan, Grade 8. Supplemented 6th edition. “Sharq” Publishing and Printing Joint-Stock Company, Main Editorial Office, Tashkent, 2019
17

Ferrous metallurgy

Textbook: pp. 48–50
GoalExplain the structure of ferrous metallurgy, the full-cycle combine and its siting conditions.
New words
ferrous metallurgy · qora metallurgiyapig iron · cho‘yansteel · po‘latrolled metal · prokat
Explanation

The ferrous metallurgy chain starts with mining iron ore: pig iron is made from ore, steel from pig iron and rolled metal from steel, and ferroalloys are made separately. In modern metallurgy most metal is made in combines: pig iron is smelted from ore in a blast furnace, steel is made from pig iron and scrap in open-hearth, converter or electric furnaces, and the finished product, rolled metal, is made from steel. The newest technology extracts iron without a blast furnace and without melting the ore. A combine uses much raw material and fuel, so it is built near raw-material or fuel bases, sometimes between them; water, energy, gas and environmental protection are also considered. Uzbekistan’s first metallurgical enterprise, the Bekabad plant, was built during the Second World War and produced its first steel in 1944; it mainly melts steel from scrap in electric furnaces. It cannot fully meet the country’s needs, so part of the metal is brought from abroad. To raise output, new capacities, electric furnaces and a wider range of products are needed.

Worked examples
Pig iron is smelted from ore, then turned into steel, and from steel rolled products such as sheets or pipes are made: this is a full cycle.
It is convenient to build an electric-furnace steel plant near a big industrial centre where much scrap is collected, because the raw material is close.
Class activity

“The path of metal”: students draw the stages from ore to rolled metal with arrows and name the furnace or shop at each stage.

Practice
1
What does ferrous metallurgy include?
2
Where and when did Uzbekistan’s first metallurgical plant start?
3
A plant smelted 120 thousand tonnes of steel and made 90 thousand tonnes of rolled metal. How many thousand tonnes of steel did not become rolled product?
4
Why are metallurgical combines built near raw materials and fuel?