A method for the Recovery of nickel and Cobalt from a Lean ore of nickel containing Iron

摘要

The Invention relates to methods for the Recovery of nickel and Cobalt from Nickel lean ore containing Iron. The ores are lean ores that are not Economic.The method uses relatively low acid levels ("acid deprivation") for long periods of time for leaching of nickel and Cobalt, providing relatively high levels of nickel and Cobalt Mining, in conjunction with relatively low levels of extraction Iron.The Method of the invention allows an acceptable extraction of nickel and Cobalt acid consumption without incurring an unnecessarily Large.