what is meant by leaching?Explain eith an example
Answers
Answered by
19
Hey,
Thanks for asking this question.
Leaching is a process of mass transfer that occurs by extracting a substance from a solid material that has come into contact with the liquid.
Leaching is the natural process by which water soluble substances are washed out from soil or wastes. These leached out chemicals cause pollution of surface and sub-surface water.
For example,
•In the metals industry for removing mineral from ores (acid solvents).
•In the sugar industry for removing sugar from beets (water is solvent).
•In the oilseeds industry for removing oil from soyabeans (hexane or anyother organic solvent).
Hope this answer helps.
Thanks for asking this question.
Leaching is a process of mass transfer that occurs by extracting a substance from a solid material that has come into contact with the liquid.
Leaching is the natural process by which water soluble substances are washed out from soil or wastes. These leached out chemicals cause pollution of surface and sub-surface water.
For example,
•In the metals industry for removing mineral from ores (acid solvents).
•In the sugar industry for removing sugar from beets (water is solvent).
•In the oilseeds industry for removing oil from soyabeans (hexane or anyother organic solvent).
Hope this answer helps.
Answered by
6
Answer:
Leaching is the simply the process of converting an ore (concentrated ore) into its pure oxide form .
Explanation:
In this process , the oxide(hydrated) ore is treated with a strong alkaline solution to convert it into its pure oxide form .
This can be understood by the means of following example :
Bauxite ore of Aluminium (Al2O3.2H20) is treated with alkaline solution of Sodium hydroxide and is converted into Aluminium oxide(Al2O3) .
This can further be reduced to pure metal by using a reducing agent like Carbon .
Similar questions