| Method for recovering precious metals from thiosulfate leach solutions |
2023-11-10 |
2023-11-30 |
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| Method for carbon-catalysed thiosulfate leaching of gold-bearing materials |
2023-3-16 |
2023-10-05 |
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| METHOD FOR RECOVERING PRECIOUS METALS FROM THIOSULFATE LEACH SOLUTIONS |
2021-11-23 |
2022-1-31 |
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| Method for pre-treatment of gold-bearing oxide ores |
2021-7-21 |
2021-10-21 |
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| METHOD FOR THE LEACHING OF MATERIALS CONTAINING GOLD BY CARBON-CATALYZED … |
2020-1-21 |
2021-9-21 |
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| METHOD FOR LEACHING MATERIALS WITH GOLD CONTENT BY CARBON CATALYZED THOSULFATE |
2020-1-21 |
2021-9-01 |
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| Separation of Copper Minerals from Pyrite Using Air-Metabisulfite Treatment |
2018-2-07 |
2020-5-20 |
2020-5-20 |
| Co-Current and Counter Current Resin-In-Leach in Gold Leaching Processes |
2017-10-05 |
2018-2-01 |
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| Method for recovering precious metals and copper from leach solutions |
2017-5-10 |
2017-9-14 |
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| Method for oxidation and separation of arsenic from process and residual … |
2015-11-23 |
2016-7-29 |
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| Alkaline and acid pressure oxidation of precious metal-containing materials |
2013-12-11 |
2014-4-10 |
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| Recovery of gold from roaster calcine leach tailings |
2013-10-23 |
2014-5-01 |
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| PROCESS TO RECOVER PRECIOUS METAL |
2013-10-22 |
2015-8-12 |
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| PRODUCTION OF CONCETRATES OF CINC SULFATE FROM A DILUATED SOLUTION OF CINC … |
2011-1-07 |
2017-10-15 |
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| Separation of copper minerals from pyrite using air-metabisulfite treatment. |
2010-12-03 |
2015-11-20 |
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| A method for recovering platinum group metals using reducing agents |
2010-4-14 |
2010-6-14 |
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| METHOD FOR IMPROVING THE GOLD RECOVERY OF BIRRESISTENT AURIFERAL LESSONS |
2010-3-15 |
2010-10-31 |
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| PROCESS FOR CONTROL OF MERCURY DURING PRESSURE OXIDATION |
2010-3-15 |
2010-4-15 |
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| PROCESS FOR REDUCED CONSUMPTION OF ALCALI IN SILVER RECOVERY |
2008-12-15 |
2017-10-15 |
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| Methods comprising providing feedstock with refractory gold and carbon- … |
2008-11-28 |
2009-10-09 |
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| PROCEDURE FOR THE RECOVERY OF GOLD AND SILVER FROM REFRACTORY MINERALS |
2008-9-17 |
2009-7-13 |
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| Process for controlling acid in sulfide pressure oxidation processes |
2008-9-12 |
2009-3-19 |
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| Thiosulfate generation in situ in precious metal recovery |
2008-5-20 |
2010-2-24 |
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| Treatment of reclaim water for use in metals recovery |
2008-2-14 |
2008-12-31 |
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| Selective precipitation of metal sulfides |
2007-10-30 |
2008-5-08 |
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| PRECIOUS METAL RECOVERY PROCEDURE |
2007-6-14 |
2008-8-27 |
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| Autoclave with underflow dividers |
2007-3-16 |
2009-1-16 |
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| Thiosulfate generation in situ in precious metal recovery |
2006-11-10 |
2009-8-11 |
2009-8-11 |
| Treatment of reclaim water for use in metals recovery |
2005-8-19 |
2010-6-10 |
2010-6-10 |
| Treatment of reclaim water for use in metals recovery |
2005-8-19 |
2007-2-22 |
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| Process for recovering arsenic from acidic aqueous solution. |
2003-6-04 |
2004-8-11 |
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| A process for recovering gold from thiosulfate leach solutions and slurries … |
2001-4-03 |
2004-3-16 |
2004-3-16 |
| Método para a lixiviação de materiais contendo ouro por tiossulfato catalisado … |
2020-1-21 |
2021-9-21 |
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