What is leaching Leaching is one of many solid fluid separation processes that are carried out in the chemical mineral and related industries Descriptions of leaching equipment the theory of staged leaching operations and several illustrative computations can be found in Chapter 13 of various editions of Treybal s Mass Transfer
·Various types of equilibrium stills are used to measure the concentrations of the vapor and liquid phases The simplest extraction and leaching equipment is the mixing/settling tank in which the solvent is mixed thoroughly with the liquid or solid to be extracted until equilibrium is reached and then the two phases are separated
Introducing Metso leaching technology At Metso we provide versatile leaching methods suitable for your plant from chloride to sulfate leaching and from atmospheric to pressure leaching Our metallurgical knowledge and experience enable us to optimize design process conditions and
·The available nickel resources in the world include three main types namely nickel sulfide ores laterite ores and submarine manganese nodules The submarine manganese nodules have not been used effectively due to the limitation of mining technology and high cost High equipment Requirements Lower leaching rate Alkaline environment
Types of Leaching Processes in Metallurgy The different kinds of leaching processes which are used in industrial purposes for metallurgy are given below Heap Leaching It refers to a process which extracts uranium copper and many other precious metals from their ores In situ Leaching It is a process which recovers uranium and copper
·Indirect Bacterial Leaching Non contact leaching In Indirect bacterial leaching no direct contact between the microorganisms and the mineral occurs Types of Bioleaching Three major processes are prevalent in bioleaching 1 Slope Leaching In slope leaching fine ore is ground and placed in a large slope shaped dump
·Technique of leaching There are two types of method of leaching Steady State Continuous mode Unsteady State A Batch B Semi batch Leaching operations are carried out under batch and semi batch as well as under completely continuous condition Two major handling techniques are used spraying or trickling the liquid over the solid and
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