HRP920601A2 - Process for the production of precious metals - Google Patents
Process for the production of precious metals Download PDFInfo
- Publication number
- HRP920601A2 HRP920601A2 HR920601A HRP920601A HRP920601A2 HR P920601 A2 HRP920601 A2 HR P920601A2 HR 920601 A HR920601 A HR 920601A HR P920601 A HRP920601 A HR P920601A HR P920601 A2 HRP920601 A2 HR P920601A2
- Authority
- HR
- Croatia
- Prior art keywords
- pulp
- gold
- carbon
- leaching
- solution
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 80
- 230000008569 process Effects 0.000 title claims description 52
- 239000010970 precious metal Substances 0.000 title claims description 27
- 238000004519 manufacturing process Methods 0.000 title description 3
- 239000010931 gold Substances 0.000 claims description 163
- 229910052737 gold Inorganic materials 0.000 claims description 144
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 143
- 229910052799 carbon Inorganic materials 0.000 claims description 114
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 113
- 238000002386 leaching Methods 0.000 claims description 74
- 239000007787 solid Substances 0.000 claims description 60
- 239000002245 particle Substances 0.000 claims description 54
- 239000007788 liquid Substances 0.000 claims description 48
- 239000000243 solution Substances 0.000 claims description 44
- 229910052751 metal Inorganic materials 0.000 claims description 21
- 239000002184 metal Substances 0.000 claims description 21
- 238000010790 dilution Methods 0.000 claims description 16
- 239000012895 dilution Substances 0.000 claims description 16
- 238000000605 extraction Methods 0.000 claims description 15
- 239000003795 chemical substances by application Substances 0.000 claims description 13
- 239000011347 resin Substances 0.000 claims description 13
- 229920005989 resin Polymers 0.000 claims description 13
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 12
- 239000002270 dispersing agent Substances 0.000 claims description 10
- 239000003456 ion exchange resin Substances 0.000 claims description 10
- 229920003303 ion-exchange polymer Polymers 0.000 claims description 10
- 238000000926 separation method Methods 0.000 claims description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 6
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 claims description 5
- 239000012141 concentrate Substances 0.000 claims description 5
- 239000010802 sludge Substances 0.000 claims description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 4
- 238000005342 ion exchange Methods 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 3
- 230000008021 deposition Effects 0.000 claims description 2
- 229910001385 heavy metal Inorganic materials 0.000 claims 2
- 239000003153 chemical reaction reagent Substances 0.000 claims 1
- 238000007865 diluting Methods 0.000 claims 1
- 150000002894 organic compounds Chemical class 0.000 claims 1
- 238000004064 recycling Methods 0.000 claims 1
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 44
- 238000004458 analytical method Methods 0.000 description 32
- QZPSXPBJTPJTSZ-UHFFFAOYSA-N aqua regia Chemical compound Cl.O[N+]([O-])=O QZPSXPBJTPJTSZ-UHFFFAOYSA-N 0.000 description 27
- 238000011084 recovery Methods 0.000 description 16
- 239000000463 material Substances 0.000 description 15
- 239000004927 clay Substances 0.000 description 13
- 238000003795 desorption Methods 0.000 description 13
- PTTPXKJBFFKCEK-UHFFFAOYSA-N 2-Methyl-4-heptanone Chemical compound CC(C)CC(=O)CC(C)C PTTPXKJBFFKCEK-UHFFFAOYSA-N 0.000 description 12
- 239000003463 adsorbent Substances 0.000 description 12
- 239000003513 alkali Substances 0.000 description 11
- 238000003556 assay Methods 0.000 description 9
- 238000001479 atomic absorption spectroscopy Methods 0.000 description 8
- 239000000460 chlorine Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 7
- 238000001179 sorption measurement Methods 0.000 description 7
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 7
- 229910052725 zinc Inorganic materials 0.000 description 7
- 239000011701 zinc Substances 0.000 description 7
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 6
- 150000002825 nitriles Chemical class 0.000 description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 6
- 229910052709 silver Inorganic materials 0.000 description 6
- 239000004332 silver Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 4
- 102100040678 Programmed cell death protein 1 Human genes 0.000 description 4
- 101710089372 Programmed cell death protein 1 Proteins 0.000 description 4
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000007792 addition Methods 0.000 description 4
- 229910052801 chlorine Inorganic materials 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 4
- 239000011368 organic material Substances 0.000 description 4
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 3
- 239000002250 absorbent Substances 0.000 description 3
- 230000002745 absorbent Effects 0.000 description 3
- 239000003575 carbonaceous material Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- AHTSCRNWVSEMPI-UHFFFAOYSA-N gold;methane Chemical compound C.[Au] AHTSCRNWVSEMPI-UHFFFAOYSA-N 0.000 description 3
- 229910052697 platinum Inorganic materials 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000010561 standard procedure Methods 0.000 description 3
- 150000004763 sulfides Chemical class 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 150000001721 carbon Chemical class 0.000 description 2
- 238000005119 centrifugation Methods 0.000 description 2
- 239000008139 complexing agent Substances 0.000 description 2
- LELOWRISYMNNSU-UHFFFAOYSA-N hydrogen cyanide Chemical compound N#C LELOWRISYMNNSU-UHFFFAOYSA-N 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- NAVJNPDLSKEXSP-UHFFFAOYSA-N Fe(CN)2 Chemical class N#C[Fe]C#N NAVJNPDLSKEXSP-UHFFFAOYSA-N 0.000 description 1
- 108010010803 Gelatin Proteins 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 101100436333 Komagataella phaffii (strain GS115 / ATCC 20864) ATG26 gene Proteins 0.000 description 1
- 229920000388 Polyphosphate Polymers 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000005388 borosilicate glass Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001804 chlorine Chemical class 0.000 description 1
- 238000010668 complexation reaction Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000010908 decantation Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 150000002343 gold Chemical class 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000011221 initial treatment Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000010979 pH adjustment Methods 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 239000001205 polyphosphate Substances 0.000 description 1
- 235000011176 polyphosphates Nutrition 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002516 radical scavenger Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 description 1
- 235000019982 sodium hexametaphosphate Nutrition 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 1
- SOBHUZYZLFQYFK-UHFFFAOYSA-K trisodium;hydroxy-[[phosphonatomethyl(phosphonomethyl)amino]methyl]phosphinate Chemical compound [Na+].[Na+].[Na+].OP(O)(=O)CN(CP(O)([O-])=O)CP([O-])([O-])=O SOBHUZYZLFQYFK-UHFFFAOYSA-K 0.000 description 1
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
- C22B11/00—Obtaining noble metals
- C22B11/04—Obtaining noble metals by wet processes
- C22B11/042—Recovery of noble metals from waste materials
-
- 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
- C22B11/04—Obtaining noble metals by wet processes
-
- 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
- C22B3/20—Treatment or purification of solutions, e.g. obtained 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
- C22B3/20—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
-
- 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
- C22B3/42—Treatment or purification of solutions, e.g. obtained by leaching by ion-exchange extraction
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AUPJ307989 | 1989-03-07 | ||
| AUPJ484089 | 1989-06-22 | ||
| YU46290A YU46290A (sh) | 1989-03-07 | 1990-03-07 | Postupak za dobijanje plemenitih metala |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| HRP920601A2 true HRP920601A2 (en) | 1995-06-30 |
Family
ID=25643643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| HR920601A HRP920601A2 (en) | 1989-03-07 | 1992-09-29 | Process for the production of precious metals |
Country Status (23)
| Country | Link |
|---|---|
| US (1) | US5215575A (show.php) |
| CN (1) | CN1036283C (show.php) |
| AP (1) | AP151A (show.php) |
| AR (1) | AR246558A1 (show.php) |
| BR (1) | BR9007193A (show.php) |
| CA (1) | CA2045551A1 (show.php) |
| CU (1) | CU22322A3 (show.php) |
| GB (1) | GB2248631B (show.php) |
| GR (1) | GR1002301B (show.php) |
| HR (1) | HRP920601A2 (show.php) |
| IE (1) | IE62041B1 (show.php) |
| IL (1) | IL93664A (show.php) |
| IN (1) | IN178836B (show.php) |
| MA (1) | MA22480A1 (show.php) |
| MY (1) | MY105658A (show.php) |
| NZ (1) | NZ232793A (show.php) |
| OA (1) | OA09217A (show.php) |
| PE (1) | PE891A1 (show.php) |
| PH (1) | PH27611A (show.php) |
| RU (1) | RU2069235C1 (show.php) |
| WO (1) | WO1990010721A1 (show.php) |
| YU (1) | YU46290A (show.php) |
| ZA (1) | ZA901703B (show.php) |
Families Citing this family (65)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993018192A1 (en) * | 1992-03-09 | 1993-09-16 | Pivot Mining Nl | Continuous leaching of treated titaniferous ores with alcohol solutions |
| US5354359A (en) * | 1992-04-01 | 1994-10-11 | Newmont Gold Co. | Hydrometallurgical process for the recovery of precious metal values from precious metal ores with thiosulfate lixiviant |
| US5449396A (en) * | 1993-02-16 | 1995-09-12 | Laskorin; Boris N. | Method for recovering gold and silver from ore starting materials |
| CA2147307A1 (en) * | 1994-04-20 | 1995-10-21 | Dean Butler | Noble metal recovery |
| USH1661H (en) * | 1994-08-30 | 1997-07-01 | The United States Of America As Represented By The Secretary Of The Navy | Ion exchange removal of cations under chelating/complexing conditions |
| US5536297A (en) * | 1995-02-10 | 1996-07-16 | Barrick Gold Corporation | Gold recovery from refractory carbonaceous ores by pressure oxidation and thiosulfate leaching |
| US5785736A (en) * | 1995-02-10 | 1998-07-28 | Barrick Gold Corporation | Gold recovery from refractory carbonaceous ores by pressure oxidation, thiosulfate leaching and resin-in-pulp adsorption |
| DE19710529A1 (de) * | 1997-03-14 | 1998-09-17 | Ruhr Zink Gmbh | Verfahren zur Anreicherung von Silber oder anderen Wertmetallen durch Flotation aus einer Suspension, beispielsweise aus den Rückständen der Zinklaugung |
| GB9804486D0 (en) * | 1998-03-02 | 1998-04-29 | Robinson Lee F | Extraction of valuable metal |
| US6251163B1 (en) | 1998-03-04 | 2001-06-26 | Placer Dome, Inc. | Method for recovering gold from refractory carbonaceous ores |
| US6368381B1 (en) | 1998-03-11 | 2002-04-09 | Placer Dome Technical Services, Ltd. | Autoclave using agitator and sparge tube to provide high oxygen transfer rate to metal-containing solutions |
| US6010869A (en) * | 1998-07-23 | 2000-01-04 | The United States Of America As Represented By The Secretary Of The Air Force | Method to collect and recover microorganisms from environmental samples |
| RU2152448C1 (ru) * | 1999-01-13 | 2000-07-10 | Институт химии нефти СО РАН | Способ извлечения благородных металлов |
| US6221001B1 (en) | 1999-01-26 | 2001-04-24 | Ada Environmental Solutions Llc | Fly-ash slurry with solidification retardant |
| US6267802B1 (en) | 1999-06-17 | 2001-07-31 | Ada Environmental Solutions, Llc | Composition apparatus and method for flue gas conditioning |
| US6270555B1 (en) | 1999-12-30 | 2001-08-07 | Solvay Minerals, Inc. | Process for treating precious metal ores |
| US6344068B1 (en) | 2000-04-04 | 2002-02-05 | Barrick Gold Corporation | Process for recovering gold from thiosulfate leach solutions and slurries with ion exchange resin |
| US6660059B2 (en) * | 2000-05-19 | 2003-12-09 | Placer Dome Technical Services Limited | Method for thiosulfate leaching of precious metal-containing materials |
| US6494932B1 (en) * | 2000-06-06 | 2002-12-17 | Birch Mountain Resources, Ltd. | Recovery of natural nanoclusters and the nanoclusters isolated thereby |
| GB0025502D0 (en) | 2000-10-18 | 2000-11-29 | Johnson Matthey Plc | Metal scavenging |
| US6632264B2 (en) | 2001-04-17 | 2003-10-14 | The University Of British Columbia | Gold recovery from thiosulfate leaching |
| RU2214463C1 (ru) * | 2002-03-14 | 2003-10-20 | Иркутский государственный технический университет | Способ извлечения серебра из цианистых растворов и пульп |
| US7811594B2 (en) * | 2002-03-28 | 2010-10-12 | Beiersdorf Ag | Crosslinked oil droplet-based cosmetic or pharmaceutical emulsions |
| US6797035B2 (en) * | 2002-08-30 | 2004-09-28 | Ada Environmental Solutions, Llc | Oxidizing additives for control of particulate emissions |
| US7722840B2 (en) * | 2002-11-15 | 2010-05-25 | Placer Dome Technical Services Limited | Method for thiosulfate leaching of precious metal-containing materials |
| US6827837B2 (en) * | 2002-11-22 | 2004-12-07 | Robert W. Halliday | Method for recovering trace elements from coal |
| RU2235140C2 (ru) * | 2002-12-06 | 2004-08-27 | Горный институт Уральского отделения РАН | Способ извлечения благородных металлов |
| RU2237092C1 (ru) * | 2003-02-19 | 2004-09-27 | Институт химии Дальневосточного отделения РАН (статус государственного учреждения) | Способ извлечения серебра из флотационных сульфидных концентратов |
| US20040237721A1 (en) * | 2003-05-29 | 2004-12-02 | Morteza Baghalha | Anoxic leaching of precious metals with thiosulfate and precious metal oxidants |
| TW200624151A (en) * | 2004-11-12 | 2006-07-16 | Monsanto Technology Llc | Recovery of noble metals from aqueous process streams |
| US7604783B2 (en) | 2004-12-22 | 2009-10-20 | Placer Dome Technical Services Limited | Reduction of lime consumption when treating refractor gold ores or concentrates |
| CA2620863A1 (en) * | 2005-09-06 | 2007-03-15 | Anglo Platinum Limited | Fire assay flux composition for the analysis of pgm and gold containing mineral samples |
| US8061888B2 (en) | 2006-03-17 | 2011-11-22 | Barrick Gold Corporation | Autoclave with underflow dividers |
| US8252254B2 (en) | 2006-06-15 | 2012-08-28 | Barrick Gold Corporation | Process for reduced alkali consumption in the recovery of silver |
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| GB451979A (en) * | 1935-05-14 | 1936-08-14 | Merrill Co | Improvements in or relating to the recovery of precious metals from ores or preciousmetal bearing deposits |
| GB851552A (en) * | 1958-03-04 | 1960-10-19 | Fairweather Harold G C | Process for extracting gold and silver from their ores |
| US3764650A (en) * | 1970-12-31 | 1973-10-09 | Us Interior | Recovery of gold from ores |
| BE847441A (fr) * | 1976-10-19 | 1977-02-14 | Procede pour recuperer des metaux precieux de matieres en contenant. | |
| US4188208A (en) * | 1978-05-22 | 1980-02-12 | Newmont Exploration Limited | Recovery of gold from carbonaceous gold-bearing ores |
| US4289532A (en) * | 1979-12-03 | 1981-09-15 | Freeport Minerals Company | Process for the recovery of gold from carbonaceous ores |
| CA1188522A (en) * | 1982-03-11 | 1985-06-11 | Eberhard Krause | Recovery of silver from precious metal-containing intermediates |
| US4552589A (en) * | 1984-01-27 | 1985-11-12 | Getty Oil Company | Process for the recovery of gold from refractory ores by pressure oxidation |
| CA1234291A (en) * | 1984-09-27 | 1988-03-22 | Donald R. Weir | Recovery of gold from auriferous refractory iron- containing sulphidic material |
| US4654078A (en) * | 1985-07-12 | 1987-03-31 | Perez Ariel E | Method for recovery of precious metals from difficult ores with copper-ammonium thiosulfate |
| PH21188A (en) * | 1985-09-10 | 1987-08-12 | Butler Dean | Leaching process |
| DE3801741C1 (show.php) * | 1988-01-22 | 1989-06-15 | Degussa Ag, 6000 Frankfurt, De |
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1990
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- 1990-03-06 IL IL9366490A patent/IL93664A/en not_active IP Right Cessation
- 1990-03-06 RU SU5001855 patent/RU2069235C1/ru active
- 1990-03-06 IE IE78190A patent/IE62041B1/en not_active IP Right Cessation
- 1990-03-06 WO PCT/AU1990/000086 patent/WO1990010721A1/en not_active Ceased
- 1990-03-06 BR BR9007193A patent/BR9007193A/pt unknown
- 1990-03-06 CA CA2045551A patent/CA2045551A1/en not_active Abandoned
- 1990-03-06 US US07/752,561 patent/US5215575A/en not_active Expired - Fee Related
- 1990-03-07 MA MA22030A patent/MA22480A1/fr unknown
- 1990-03-07 GR GR900100161A patent/GR1002301B/el unknown
- 1990-03-07 YU YU46290A patent/YU46290A/sh unknown
- 1990-03-07 CN CN90101201A patent/CN1036283C/zh not_active Expired - Fee Related
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| AP9000167A0 (en) | 1990-04-30 |
| US5215575A (en) | 1993-06-01 |
| IE62041B1 (en) | 1994-12-14 |
| GB9116316D0 (en) | 1991-09-11 |
| GR900100161A (el) | 1991-07-31 |
| CA2045551A1 (en) | 1990-09-20 |
| YU46290A (sh) | 1993-11-16 |
| WO1990010721A1 (en) | 1990-09-20 |
| CU22322A3 (es) | 1995-01-31 |
| RU2069235C1 (ru) | 1996-11-20 |
| CN1036283C (zh) | 1997-10-29 |
| ZA901703B (en) | 1990-12-28 |
| GB2248631B (en) | 1993-06-09 |
| OA09217A (fr) | 1992-06-30 |
| GB2248631A (en) | 1992-04-15 |
| CN1046942A (zh) | 1990-11-14 |
| NZ232793A (en) | 1991-07-26 |
| IL93664A (en) | 1994-11-11 |
| MA22480A1 (fr) | 1992-12-31 |
| BR9007193A (pt) | 1991-11-26 |
| AR246558A1 (es) | 1994-08-31 |
| IE900781L (en) | 1990-09-07 |
| AU5260690A (en) | 1990-10-09 |
| IN178836B (show.php) | 1997-07-05 |
| AU631413B2 (en) | 1992-11-26 |
| AP151A (en) | 1991-10-02 |
| GR1002301B (el) | 1996-05-07 |
| MY105658A (en) | 1994-11-30 |
| PE891A1 (es) | 1991-02-02 |
| PH27611A (en) | 1993-08-31 |
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