AR126967A1 - MULTI-STAGE HIGH TEMPERATURE PRESSURE OXIDATION PROCESS FOR MATERIALS CONTAINING DOUBLE REFRACTORY PRECIOUS METALS - Google Patents
MULTI-STAGE HIGH TEMPERATURE PRESSURE OXIDATION PROCESS FOR MATERIALS CONTAINING DOUBLE REFRACTORY PRECIOUS METALSInfo
- Publication number
- AR126967A1 AR126967A1 ARP220102380A ARP220102380A AR126967A1 AR 126967 A1 AR126967 A1 AR 126967A1 AR P220102380 A ARP220102380 A AR P220102380A AR P220102380 A ARP220102380 A AR P220102380A AR 126967 A1 AR126967 A1 AR 126967A1
- Authority
- AR
- Argentina
- Prior art keywords
- maintaining
- precious metals
- sulfide
- weight
- high temperature
- Prior art date
Links
- 239000000463 material Substances 0.000 title abstract 4
- 239000010970 precious metal Substances 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 2
- 230000003647 oxidation Effects 0.000 title abstract 2
- 238000007254 oxidation reaction Methods 0.000 title abstract 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 abstract 3
- 239000003575 carbonaceous material Substances 0.000 abstract 2
- YGANSGVIUGARFR-UHFFFAOYSA-N dipotassium dioxosilane oxo(oxoalumanyloxy)alumane oxygen(2-) Chemical compound [O--].[K+].[K+].O=[Si]=O.O=[Al]O[Al]=O YGANSGVIUGARFR-UHFFFAOYSA-N 0.000 abstract 2
- 239000010433 feldspar Substances 0.000 abstract 2
- 229910052627 muscovite Inorganic materials 0.000 abstract 2
- 239000007790 solid phase Substances 0.000 abstract 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract 1
- 150000002500 ions Chemical class 0.000 abstract 1
- 238000002386 leaching Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 239000011819 refractory material Substances 0.000 abstract 1
- 239000010802 sludge Substances 0.000 abstract 1
- YALHCTUQSQRCSX-UHFFFAOYSA-N sulfane sulfuric acid Chemical compound S.OS(O)(=O)=O YALHCTUQSQRCSX-UHFFFAOYSA-N 0.000 abstract 1
- 229910052717 sulfur Inorganic materials 0.000 abstract 1
- 239000011593 sulfur Substances 0.000 abstract 1
- 239000000725 suspension Substances 0.000 abstract 1
- 150000003568 thioethers Chemical class 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
Un método de lixiviación de metales preciosos incluye el suministro de una alimentación por lodos, que comprende (i) en la fase sólida, un material refractario que contiene sulfuro, en donde el material comprende al menos aproximadamente 0,05 oz/tonelada de un metal precioso, al menos aproximadamente el 0,75% en peso de sulfuros, opcionalmente al menos aproximadamente el 0,1% en peso de feldespato (es decir, muscovita), y al menos el 0,3% en peso de material carbonáceo preg-robbing; y oxidar el material que contiene sulfuro a más de aproximadamente 240ºC y a una presión superatmosférica para oxidar al menos la mayor parte del material carbonáceo y, opcionalmente, convertir al menos la mayor parte del azufre de sulfuro en azufre de sulfato y formar un material oxidado que contiene metales preciosos, en donde se realiza al menos una de las siguientes acciones durante la oxidación: mantener un pH de al menos aproximadamente pH 1,5; mantener al menos aproximadamente el 98,5% del feldespato (es decir, muscovita) en la fase sólida; mantener una concentración de iones cúpricos disueltos de al menos aproximadamente 0,25 g/L; y mantener la alimentación en suspensión en condiciones de funcionamiento con agua subcrítica o supercrítica.A precious metal leaching method includes providing a sludge feed, comprising (i) in the solid phase, a sulfide-containing refractory material, wherein the material comprises at least about 0.05 oz/ton of a metal precious, at least about 0.75% by weight of sulfides, optionally at least about 0.1% by weight of feldspar (i.e., muscovite), and at least 0.3% by weight of carbonaceous material "preg" -robbing; and oxidizing the sulfide-containing material at greater than about 240°C and at superatmospheric pressure to oxidize at least most of the carbonaceous material and, optionally, converting at least most of the sulfide sulfur to sulfate sulfur and forming an oxidized material that contains precious metals, where at least one of the following actions is performed during oxidation: maintaining a pH of at least about pH 1.5; maintaining at least about 98.5% of the feldspar (i.e. muscovite) in the solid phase; maintaining a concentration of dissolved cupric ions of at least about 0.25 g/L; and maintain the feed in suspension under operating conditions with subcritical or supercritical water.
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US202063241689P | 2020-09-08 | 2020-09-08 | |
| US202063241693P | 2020-09-08 | 2020-09-08 | |
| US202063255254P | 2020-10-13 | 2020-10-13 | |
| US202063255273P | 2020-10-13 | 2020-10-13 | |
| US202063275301P | 2020-11-03 | 2020-11-03 | |
| US202063275297P | 2020-11-03 | 2020-11-03 | |
| US202163240281P | 2021-09-02 | 2021-09-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AR126967A1 true AR126967A1 (en) | 2023-12-06 |
Family
ID=89309901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ARP220102380A AR126967A1 (en) | 2020-09-08 | 2022-09-01 | MULTI-STAGE HIGH TEMPERATURE PRESSURE OXIDATION PROCESS FOR MATERIALS CONTAINING DOUBLE REFRACTORY PRECIOUS METALS |
Country Status (1)
| Country | Link |
|---|---|
| AR (1) | AR126967A1 (en) |
-
2022
- 2022-09-01 AR ARP220102380A patent/AR126967A1/en unknown
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