METHOD FOR UNDERGROUND LIXIVIATION OF NON-FERROUS METAL ORES Russian patent published in 2007 - IPC E21B43/28 

Abstract RU 2293844 C2

FIELD: mining industry, possible use for extracting nickel.

SUBSTANCE: method includes creation of force and product mines, forcing lixiviating acid solutions into force mines with oxidizing and following extraction of ore bed, output of productive solution through product mines, refining of solution. Treatment with sulfurous solutions with their delay in formation is performed at pH≤1,5, and productive solutions are drained at pH≤1,0.

EFFECT: simplified technology, decreased flow of reagents, increased recovery of main metal.

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RU 2 293 844 C2

Authors

Orlov Stanislav L'Vovich

Baskov Dmitrij Borisovich

Dates

2007-02-20Published

2005-05-12Filed