Other Methods Of Extracting Metals

Question 1

How does extraction by electrolysis work?

Answer 1

Instead of carbon , we use molten compounds as they are more reactive then carbon.

When it’s melted , electricity is passed through and the elements separate due to the positive and negative charges.

Question 2

What is bad with electrolysis extraction ?

Answer 2

Expensive

Lots of energy

Question 3

What is good with carbon extraction?

Answer 3

Cheaper
Lots of carbon
Lower down means cheaper

Question 4

What is bioleaching?

Answer 4

Use bacteria to separate the ores, the bacteria eat the nutrients and energy from the substance this then leaves the metal for extraction , the bacteria is called leachate. The leachate is then separate for the metal

Question 5

What is phytoextraction?

Answer 5

Plants grow in soil containing metal . Plants are burned and metal is collected from the ash. This ash can be extracted using electrolysis or displacement reactions