WO2023013665A1 - Procédé de prétraitement de minerai d'or et procédé de récupération d'or - Google Patents
Procédé de prétraitement de minerai d'or et procédé de récupération d'or Download PDFInfo
- Publication number
- WO2023013665A1 WO2023013665A1 PCT/JP2022/029744 JP2022029744W WO2023013665A1 WO 2023013665 A1 WO2023013665 A1 WO 2023013665A1 JP 2022029744 W JP2022029744 W JP 2022029744W WO 2023013665 A1 WO2023013665 A1 WO 2023013665A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- gold
- ore
- gold ore
- leaching
- pretreatment
- Prior art date
Links
- 239000010931 gold Substances 0.000 title claims abstract description 273
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 title claims abstract description 270
- 229910052737 gold Inorganic materials 0.000 title claims abstract description 270
- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000002203 pretreatment Methods 0.000 title claims abstract description 15
- 238000011084 recovery Methods 0.000 title abstract description 27
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 66
- 238000002386 leaching Methods 0.000 claims abstract description 54
- 241000894006 Bacteria Species 0.000 claims abstract description 23
- 230000003647 oxidation Effects 0.000 claims abstract description 20
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 20
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000001179 sorption measurement Methods 0.000 claims abstract description 13
- 238000010828 elution Methods 0.000 claims abstract description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 40
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 29
- 238000005406 washing Methods 0.000 claims description 26
- 102000003425 Tyrosinase Human genes 0.000 claims description 20
- 108060008724 Tyrosinase Proteins 0.000 claims description 20
- 229910052742 iron Inorganic materials 0.000 claims description 19
- 230000002255 enzymatic effect Effects 0.000 claims description 14
- 239000002245 particle Substances 0.000 abstract description 13
- 230000001747 exhibiting effect Effects 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 32
- 239000007788 liquid Substances 0.000 description 31
- 102000004190 Enzymes Human genes 0.000 description 24
- 108090000790 Enzymes Proteins 0.000 description 24
- 239000002002 slurry Substances 0.000 description 22
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 22
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 20
- 229910052500 inorganic mineral Inorganic materials 0.000 description 16
- 239000011707 mineral Substances 0.000 description 16
- 235000010755 mineral Nutrition 0.000 description 16
- 239000007787 solid Substances 0.000 description 14
- -1 iron ions Chemical class 0.000 description 12
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 11
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 11
- 235000010265 sodium sulphite Nutrition 0.000 description 10
- 229910052935 jarosite Inorganic materials 0.000 description 9
- 239000000203 mixture Substances 0.000 description 8
- 238000000926 separation method Methods 0.000 description 8
- 239000002609 medium Substances 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 238000000354 decomposition reaction Methods 0.000 description 6
- 150000004763 sulfides Chemical class 0.000 description 6
- 241000233866 Fungi Species 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 5
- 238000001914 filtration Methods 0.000 description 5
- 229910021642 ultra pure water Inorganic materials 0.000 description 5
- 239000012498 ultrapure water Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 3
- 238000005188 flotation Methods 0.000 description 3
- 229910052976 metal sulfide Inorganic materials 0.000 description 3
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 description 3
- 229910052683 pyrite Inorganic materials 0.000 description 3
- 239000011028 pyrite Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 238000009210 therapy by ultrasound Methods 0.000 description 3
- 241000726121 Acidianus Species 0.000 description 2
- 241000132982 Acidianus brierleyi Species 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 description 2
- 108010054320 Lignin peroxidase Proteins 0.000 description 2
- 108010059896 Manganese peroxidase Proteins 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 229910052964 arsenopyrite Inorganic materials 0.000 description 2
- MJLGNAGLHAQFHV-UHFFFAOYSA-N arsenopyrite Chemical compound [S-2].[Fe+3].[As-] MJLGNAGLHAQFHV-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000005119 centrifugation Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 238000005363 electrowinning Methods 0.000 description 2
- 238000006911 enzymatic reaction Methods 0.000 description 2
- 238000005469 granulation Methods 0.000 description 2
- 230000003179 granulation Effects 0.000 description 2
- 238000001095 inductively coupled plasma mass spectrometry Methods 0.000 description 2
- 235000014413 iron hydroxide Nutrition 0.000 description 2
- NCNCGGDMXMBVIA-UHFFFAOYSA-L iron(ii) hydroxide Chemical compound [OH-].[OH-].[Fe+2] NCNCGGDMXMBVIA-UHFFFAOYSA-L 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 230000033116 oxidation-reduction process Effects 0.000 description 2
- NNFCIKHAZHQZJG-UHFFFAOYSA-N potassium cyanide Chemical compound [K+].N#[C-] NNFCIKHAZHQZJG-UHFFFAOYSA-N 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 150000004760 silicates Chemical class 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000011573 trace mineral Substances 0.000 description 2
- 235000013619 trace mineral Nutrition 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 235000013162 Cocos nucifera Nutrition 0.000 description 1
- 244000060011 Cocos nucifera Species 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- PDQAZBWRQCGBEV-UHFFFAOYSA-N Ethylenethiourea Chemical compound S=C1NCCN1 PDQAZBWRQCGBEV-UHFFFAOYSA-N 0.000 description 1
- 241000862970 Gallionella Species 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 235000000177 Indigofera tinctoria Nutrition 0.000 description 1
- 108010029541 Laccase Proteins 0.000 description 1
- 241000862991 Leptothrix <Bacteria> Species 0.000 description 1
- 241000222393 Phanerochaete chrysosporium Species 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 108010060806 Photosystem II Protein Complex Proteins 0.000 description 1
- DRJJJWGHLJZDGQ-UHFFFAOYSA-N [Au]C#N Chemical compound [Au]C#N DRJJJWGHLJZDGQ-UHFFFAOYSA-N 0.000 description 1
- CWVZGJORVTZXFW-UHFFFAOYSA-N [benzyl(dimethyl)silyl]methyl carbamate Chemical compound NC(=O)OC[Si](C)(C)CC1=CC=CC=C1 CWVZGJORVTZXFW-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- DLHONNLASJQAHX-UHFFFAOYSA-N aluminum;potassium;oxygen(2-);silicon(4+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Si+4].[Si+4].[Si+4].[K+] DLHONNLASJQAHX-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- NFMAZVUSKIJEIH-UHFFFAOYSA-N bis(sulfanylidene)iron Chemical compound S=[Fe]=S NFMAZVUSKIJEIH-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 229910052948 bornite Inorganic materials 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 229910052947 chalcocite Inorganic materials 0.000 description 1
- 229910052951 chalcopyrite Inorganic materials 0.000 description 1
- DVRDHUBQLOKMHZ-UHFFFAOYSA-N chalcopyrite Chemical compound [S-2].[S-2].[Fe+2].[Cu+2] DVRDHUBQLOKMHZ-UHFFFAOYSA-N 0.000 description 1
- KXZJHVJKXJLBKO-UHFFFAOYSA-N chembl1408157 Chemical compound N=1C2=CC=CC=C2C(C(=O)O)=CC=1C1=CC=C(O)C=C1 KXZJHVJKXJLBKO-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000012258 culturing Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000007857 degradation product Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 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 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000000416 exudates and transudate Anatomy 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- 238000004108 freeze drying Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- IZLAVFWQHMDDGK-UHFFFAOYSA-N gold(1+);cyanide Chemical compound [Au+].N#[C-] IZLAVFWQHMDDGK-UHFFFAOYSA-N 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000001963 growth medium Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229940097275 indigo Drugs 0.000 description 1
- COHYTHOBJLSHDF-UHFFFAOYSA-N indigo powder Natural products N1C2=CC=CC=C2C(=O)C1=C1C(=O)C2=CC=CC=C2N1 COHYTHOBJLSHDF-UHFFFAOYSA-N 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 description 1
- 229910000360 iron(III) sulfate Inorganic materials 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052627 muscovite Inorganic materials 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 229910052652 orthoclase Inorganic materials 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- DHCDFWKWKRSZHF-UHFFFAOYSA-N sulfurothioic S-acid Chemical compound OS(O)(=O)=S DHCDFWKWKRSZHF-UHFFFAOYSA-N 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B11/00—Obtaining noble metals
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/18—Extraction of metal compounds from ores or concentrates by wet processes with the aid of microorganisms or enzymes, e.g. bacteria or algae
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/22—Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means, or by thermal decomposition
- C22B3/24—Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means, or by thermal decomposition by adsorption on solid substances, e.g. by extraction with solid resins
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Definitions
- Patent Document 1 discloses a CIP (Carbon In Pulp) method as a method for recovering gold from gold ore.
- Gold recovery by the CIP method is performed in the following procedure.
- a dilute cyanide solution of an alkali metal or an alkaline earth metal and an alkali are added to finely ground gold ore to elute gold in the gold ore as a gold cyanide ion complex (Au(CN) 2 ⁇ ).
- Au(CN) 2 ⁇ gold cyanide ion complex
- the slurry containing the ore and the gold complex and the activated carbon are brought into contact with each other in a countercurrent flow to adsorb the gold complex to the activated carbon.
- a hot cyanide solution is allowed to act on the activated carbon separated from the slurry to desorb the gold complex from the activated carbon.
- the gold is then recovered by subjecting the cyanide solution in which the gold complex is concentrated to electrowinning.
- electrolytic gold can be recovered by performing electrowinning using a gold solution. It is preferable to reactivate the activated carbon after gold has been eluted and use it repeatedly.
- the mineral ratio of the gold ore before and after washing was analyzed with an MLA device (manufactured by FEI, model number: MLA650F). Table 1 shows the results.
- FIG. 3 shows the results of measuring samples 1 to 5 with a TG-DTA device (2000-SA, manufactured by Bruker). Focusing on the endothermic reaction peak of sulfides around 450° C., it can be seen that the endothermic peak of sample 3 is smaller than the endothermic peak of sample 2. This means that sample 3 has less sulfide than sample 2. Pyrite (FeS 2 ) corresponds to sulfide in the composition of the gold ore used in this example. It is considered that pyrite was removed by washing with sulfuric acid.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Biotechnology (AREA)
- Microbiology (AREA)
- Biochemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Abstract
L'invention concerne : un procédé de prétraitement de minerai d'or permettant de faciliter la récupération d'or même lorsqu'un minerai d'or contient un sulfure ou un composant carboné ; et un procédé de récupération d'or présentant un taux de récupération d'or élevé. Le procédé de prétraitement comprend une étape d'oxydation biologique dans laquelle un minerai d'or contenant un sulfure et des bactéries oxydant le fer sont mis en contact l'un avec l'autre et maintenus pendant un temps prescrit. Le procédé de récupération d'or comprend : une étape de prétraitement pour appliquer un prétraitement à un minerai d'or au moyen d'un procédé de prétraitement ; une étape de lixiviation pour lixivier l'or à partir du minerai d'or pour obtenir un lixiviat ; une étape d'adsorption pour permettre à du charbon actif d'adsorber l'or dans le lixiviat ; et une étape d'élution pour éluer l'or du charbon actif pour obtenir une solution d'or. Du fait que les particules d'or contenant du sulfure sont décomposées par oxydation par l'action des bactéries oxydant le fer, les particules d'or sont libérées, ce par quoi la récupération d'or est facilitée. Par conséquent, le taux de récupération d'or peut être augmenté.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2022322227A AU2022322227A1 (en) | 2021-08-05 | 2022-08-03 | Gold ore pretreatment method and gold recovery method |
| CA3227387A CA3227387A1 (fr) | 2021-08-05 | 2022-08-03 | Procede de pretraitement de minerai d'or et procede de recuperation d'or |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2021-128703 | 2021-08-05 | ||
| JP2021128703 | 2021-08-05 | ||
| JP2022080943A JP2023024269A (ja) | 2021-08-05 | 2022-05-17 | 金鉱石の前処理方法および金回収方法 |
| JP2022-080943 | 2022-05-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023013665A1 true WO2023013665A1 (fr) | 2023-02-09 |
Family
ID=85155713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2022/029744 WO2023013665A1 (fr) | 2021-08-05 | 2022-08-03 | Procédé de prétraitement de minerai d'or et procédé de récupération d'or |
Country Status (3)
| Country | Link |
|---|---|
| AU (1) | AU2022322227A1 (fr) |
| CA (1) | CA3227387A1 (fr) |
| WO (1) | WO2023013665A1 (fr) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4729788A (en) * | 1987-01-23 | 1988-03-08 | Advanced Mineral Technologies, Inc. | Thermophilic microbial treatment of precious metal ores |
| JP2008302356A (ja) * | 1995-06-02 | 2008-12-18 | Geobiotics Llc | 非撹拌表面バイオリアクター中の固形物質のバイオ処理方法 |
| US20090158893A1 (en) * | 2007-11-28 | 2009-06-25 | Barrick Gold Corporation | Microbial pre-treatment of double refractory gold ores |
| JP2015214731A (ja) * | 2014-05-12 | 2015-12-03 | 住友金属鉱山株式会社 | 金の回収方法 |
| JP2016128602A (ja) * | 2015-01-09 | 2016-07-14 | ソシエダード プンタ デル コブレ エス．エー．Ｓｏｃｉｅｄａｄ Ｐｕｎｔａ Ｄｅｌ Ｃｏｂｒｅ Ｓ．Ａ． | 鉱物精鉱用の担体及び鉱物精鉱の浸出法 |
| JP2018035413A (ja) * | 2016-09-01 | 2018-03-08 | Ｊｘ金属株式会社 | 貴金属の回収方法 |
-
2022
- 2022-08-03 AU AU2022322227A patent/AU2022322227A1/en active Pending
- 2022-08-03 WO PCT/JP2022/029744 patent/WO2023013665A1/fr active Application Filing
- 2022-08-03 CA CA3227387A patent/CA3227387A1/fr active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4729788A (en) * | 1987-01-23 | 1988-03-08 | Advanced Mineral Technologies, Inc. | Thermophilic microbial treatment of precious metal ores |
| JP2008302356A (ja) * | 1995-06-02 | 2008-12-18 | Geobiotics Llc | 非撹拌表面バイオリアクター中の固形物質のバイオ処理方法 |
| US20090158893A1 (en) * | 2007-11-28 | 2009-06-25 | Barrick Gold Corporation | Microbial pre-treatment of double refractory gold ores |
| JP2015214731A (ja) * | 2014-05-12 | 2015-12-03 | 住友金属鉱山株式会社 | 金の回収方法 |
| JP2016128602A (ja) * | 2015-01-09 | 2016-07-14 | ソシエダード プンタ デル コブレ エス．エー．Ｓｏｃｉｅｄａｄ Ｐｕｎｔａ Ｄｅｌ Ｃｏｂｒｅ Ｓ．Ａ． | 鉱物精鉱用の担体及び鉱物精鉱の浸出法 |
| JP2018035413A (ja) * | 2016-09-01 | 2018-03-08 | Ｊｘ金属株式会社 | 貴金属の回収方法 |
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| CA3227387A1 (fr) | 2023-02-09 |
| AU2022322227A1 (en) | 2024-02-15 |
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