METHOD OF ORES LEACHING FROM SANDSTONE-TYPE DEPOSITS

摘要

The solution concerns the hydrometallurgical treatment of ores from sandstone type deposits. In essence, the leaching is made on the limit between 0.06 to 0.2 mm of hydrometallurgically sorted out, and to a granularity of between 10 to 50 mm treated ore particles in sulphuric acid. The leached particles get sorted by granularity; their share of granularity above the sorting limit gets diminished and sorted by the granularity on the sorting limit from 0.06 mm to 0.8 multiples of the granularity; before diminishing. Finer particles are then subjected to recycling and leaching or get separately leached in sulphuric acid.