Why is most aluminium recycled?

Answer 1

The metals are collected and then melted at high temperature. They then have any impurities scraped off the top of the container of molten metal. The pure molten metal is then poured into casts and cooled. The blocks of metal can now be used again. It is cheaper and less environmentally damaging to recycle metals rather than extract them from their ores, in the ground.

Answer 2

Even though aluminum and iron are the third and fourth most abundant elements in Earth's crust, the amount of energy used in refining and smelting aluminum and iron or steel is higher than the amount of energy used in reprocessing used metal products such as cans and other sorts of scrap metal. Carbon dioxide emissions and the use of clean water are also less in reprocessing previously refined metals.

Answer 3

Aluminium is highly recyclable because it can be melted down and reused without losing its quality. Recycling aluminium also requires less energy compared to producing it from raw materials, making it a more sustainable option. Recycling aluminium helps to conserve Natural Resources and reduce greenhouse gas emissions associated with mining and production.

Answer 4

B/c it costs less to make new iron out of old iron, than it does to make it out of iron ore.

Answer 5

They are recycled so that they can be used again and not wasted.

Answer 6

Iron and aluminum are recycled because they can be melted in to the same substnce only liquidfied then formed in to the same hard substance

Answer 7

so u can use it again

Answer 8

1. Aluminium is more expensive than iron.

2. Aluminium is more pure than iron alloys.

Answer 9

less energy needed