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What is a process and apparatus for Hydrometallurgy Equipment?

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A process and apparatus for Hydrometallurgy Equipment leaching of unseparated, crushed mineral ores using a vessel having liquid stream forming nozzles in the lower portion thereof which operate to direct a stream of leaching liquid into solids in the lower portion of the vessel and to create a highly agitated interaction zone above which solids are settling under gravity and through which liquid from the lower portion rises upwardly in counter-current flow.

The vessel is sufficiently high that an overflow of low solids content liquid is taken from the top. Outlets, as for example discharge piping or sumps, are provided in the bottom of the vessel for the controlled removal of solids therefrom. In multistage operation, the solids content of the overflow liquid is removed and the liquid content of the underflow is removed and combined to yield a mineral pregnant liquor which serves as the leaching liquid for a preceding stage where less depleted solids are being processed. Solids removed from a stage are passed to a subsequent stage where less pregnant leaching solution is used, so that the solids not only are processed in each stage in counter-current flow to the leach solution, but the interstage progression of the solids and leaching liquid is also counter-current.

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asked May 3 in Business Opportunity by mixingtank (480 points)

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