Which of the following statements are true?
Which of the following statements are true?
The correct options are
A Hydrometallurgy offers excellent chemical selectivity and flexibility than pyrometallurgy
B Temperature involved in hydrometallurgy is much lower than pyrometallurgy.
D Leaching doesn't produce the huge volume of gases that pollute the environment.
Pyrometallurgy is the process of causing chemical changes in compounds by heat.It requires very high temperatures, refractory materials and reducing agents.Intermediate steps like roasting and smelting require different setups (furnaces) with distinctly different conditions and a lot of corrosive and toxic gases SO2 are evolved throughout the process
In the hydrometallurgy process, chemicals are used to cause chemical changes and temperatures not exceeding 150 degrees Celsius. Leaching is one of the processes of hydrometallurgy. Selective chemicals are used in this process so there will be excellent control in each step and in this process, no furnaces are required.
A
Hydrometallurgy offers excellent chemical selectivity and flexibility than pyrometallurgy
B
Temperature involved in hydrometallurgy is much lower than pyrometallurgy.
D
Leaching doesn't produce the huge volume of gases that pollute the environment.
Pyrometallurgy is the process of causing chemical changes in compounds by heat.It requires very high temperatures, refractory materials and reducing agents.Intermediate steps like roasting and smelting require different setups (furnaces) with distinctly different conditions and a lot of corrosive and toxic gases SO2 are evolved throughout the process
In the hydrometallurgy process, chemicals are used to cause chemical changes and temperatures not exceeding 150 degrees Celsius. Leaching is one of the processes of hydrometallurgy. Selective chemicals are used in this process so there will be excellent control in each step and in this process, no furnaces are required.
