Flashcards in Extracting Metals From Ores Deck (6)
What is phytomining?
Phytomining is using plants to extract copper from low grade ores (rocks with a low % of metal)
Copper ions go up roots and become part of the plant. The plant is then burnt and Copper Oxide is left over
This copper oxide is then reacted with sulphuric acid producing Copper Sulphate
Scrap Iron then displaces the metal and created Copper and Iron Sulphate
What are the processes of phytomining?
Copper oxide goes up roots of plant
Plant is burnt to leave Copper oxide
Copper oxide is reacted with sulphuric acid to produce Copper sulphate
Scrap iron displaces the metal and creates Copper and Iron sulphate
What is a metal ore?
A metal ore is a rock that contains metal that is economic to extract. There is more profit from the metal than the cost of extraction
What is electrolysis?
The process of extracting copper using positively charged and negatively charged electrodes (rods).
At the negative electrode, the positive copper ions are attracted and GAIN electrons to make copper metal Atoms. They are deducted
At the positive electrode, the copper atoms LOSE electrons to produce Copper Ions. They are oxidised
What is Oxidation?
What is reduction?
Oxidation Is Loss
Reduction Is Gain