| 摘要 |
A process for recovering at least one of copper or zinc metal from an ore containing metal sulfide material is disclosed. The process involves the use of promoting amounts of certain plant derived ortho-quinone and/or catechol iron complexes containing components, particularly, certain lignin and/or tannin derived components containing ortho-quinone functionality. Preferred compositions comprise at least one ligno-sulfonate component containing ortho-quinone and/or catechol functionality. In the process, the use of at least one additional oxidant capable of maintaining the ortho-quinone and/or catechol iron complex containing functionality in the desired oxidation state provides for integrated process synergy.
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