Chemistry C1 3.4 Extracting copper.

HideShow resource information
Where and how is most copper extracted?
Most copper is extracted from copper-rich ores by smelting.
1 of 15
How can copper be purified?
Copper can be purified by electrolysis.
2 of 15
What are new ways to extract copper from low-grade ores?
Bioleaching and phytomining.
3 of 15
How can copper be obtained from solutions of copper salts?
By displacement or electrolysis.
4 of 15
What is smelting?
Heating the ore strongly in a furnace.
5 of 15
How can the impure copper produced by smelting be purified?
By electrolysis.
6 of 15
How is smelting and purifying copper ore expensive?
It requires huge amounts of heating and electricity.
7 of 15
Why are scientists developing new ways of extracting copper from low-grade ores?
Copper-rich ores are a limited resource, methods that scientists are developing can have less environmental impact than smelting.
8 of 15
How does phytomining work?
Phytomining uses plants to absorb copper compounds from the ground, the plants are burned and produce ash from which copper can be extracted.
9 of 15
How does bioleaching work?
Bioleaching uses bacteria to produce solutions containing copper compounds.
10 of 15
Why are new ways of extracting copper being researched?
High-grade ores are limited or funning out, also to reduce environmental impacts.
11 of 15
Wha three ways can be used to produce copper metal from its compounds?
Smelting, electrolysis and displacement.
12 of 15
How can copper be extracted from its compounds using another metal?
Solutions of copper compounds can be reacted with a metal that is more reactive than copper, such as scrap iron, to displace the copper.
13 of 15
How else can copper be extracted from solutions of copper compounds?
Using electrolysis.
14 of 15
***LOOK UP DIAGRAMS OF EXTRACTING COPPER ETAL USING ELECTRICITY***
***
15 of 15

Other cards in this set

Card 2

Front

How can copper be purified?

Back

Copper can be purified by electrolysis.

Card 3

Front

What are new ways to extract copper from low-grade ores?

Back

Preview of the front of card 3

Card 4

Front

How can copper be obtained from solutions of copper salts?

Back

Preview of the front of card 4

Card 5

Front

What is smelting?

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Chemistry resources:

See all Chemistry resources »See all Metals, metal ores and alloys resources »