Advertisements
Advertisements
Question
Write two basic requirements for refining of a metal by Mond process and by Van Arkel Method.
Advertisements
Solution
Two basic requirements for both processes are:
(i) The metal should form a volatile compound with an available reagent.
(ii) The volatile compound should be easily decomposable, so that recovery of metal is easy.
APPEARS IN
RELATED QUESTIONS
Name the method used for the refining of zirconium.
What is the principle behind the zone refining of metals?
Describe the roles of the following: NaCN in froth floatation process
Explain:
Zone refining
What criterion is followed for the selection of the stationary phase in chromatography?
Outline the principles behind the refining of metals by the following methods:
Chromatographic method
Write down the reaction taking place in blast furnace related to the metallurgy of iron in the temperature rnge 500 K – 800 K. What is the role of limestone in the metallurgy of iron?
What happens when Copper matte is charged into silica lined converter and hot air blast is blown?
Name the method of refining which is Used to obtain semiconductor of high purity.
Zone refining is based on the principle that ______.
Give two requirements for vapour phase refining.
Assertion: Zirconium can be purificed by Van Arkel method.
Reason: ZrI4 is volatile and decomposes at 1800 K.
Assertion: Hydrometallurgy involves dissolving the ore in a suitable reagent followed by precipitation by a more electropositive metal.
Reason: Copper is extracted by hydrometallurgy.
Explain the following:
Vapour phase refining method is used for the purification of Ti.
Which one of the following methods can be used to obtain highly pure metal which is liquid at room temperature?
Electrolytic reduction method is used for the extraction of ______.
Describe a method for refining nickel.
Describe a method for refining nickel.
Describe a method for refining nickel.
