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1. (WO2019033154) RECOVERY OF PRECIOUS AND CHALCOPHILE METALS
Latest bibliographic data on file with the International BureauSubmit observation

Pub. No.: WO/2019/033154 International Application No.: PCT/AU2018/050852
Publication Date: 21.02.2019 International Filing Date: 13.08.2018
Chapter 2 Demand Filed: 13.06.2019
IPC:
C22B 3/16 (2006.01) ,C22B 11/00 (2006.01) ,C22B 15/00 (2006.01) ,C22B 3/12 (2006.01)
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
B
PRODUCTION OR REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
3
Extraction of metal compounds from ores or concentrates by wet processes
04
by leaching
16
in organic solutions
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
B
PRODUCTION OR REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
11
Obtaining noble metals
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
B
PRODUCTION OR REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
15
Obtaining copper
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
B
PRODUCTION OR REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
3
Extraction of metal compounds from ores or concentrates by wet processes
04
by leaching
12
in inorganic alkaline solutions
Applicants:
CURTIN UNIVERSITY [AU/AU]; Kent Street Bentley, Western Australia 6102, AU
Inventors:
EKSTEEN, Jacobus Johannes; AU
ORABY, Elsayed Abdelrady; AU
Agent:
GRIFFITH HACK; GPO Box 1285 Melbourne, Victoria 3001, AU
Priority Data:
201790325114.08.2017AU
Title (EN) RECOVERY OF PRECIOUS AND CHALCOPHILE METALS
(FR) RÉCUPÉRATION DE MÉTAUX PRÉCIEUX ET DE MÉTAUX CHALCOPHILES
Abstract:
(EN) A process for recovery of one or more elements, selected from precious metals and chalcophile metals, as herein defined, from materials containing precious and/or chalcophile metal/s, said process including: (i) contacting the material with an alkaline solution containing a lixiviant comprising an amino acid, or derivative thereof, and an alkali stable transition metal complex in order to form a leachate containing the precious metal and/or chalcophile metal; and (ii) recovering the precious metal and/or chalcophile metal from the leachate.
(FR) L'invention concerne un procédé de récupération d'un ou de plusieurs éléments, choisis parmi les métaux précieux et les métaux chalcophiles, tels que définis dans la description, dans des matériaux contenant un ou plusieurs métaux précieux et/ou chalcophiles, ledit procédé comprenant : (i) la mise en contact du matériau avec une solution alcaline contenant un agent de lixiviation comprenant un acide aminé, ou un dérivé correspondant, et un complexe de métal de transition stable aux alcalis afin de former un lixiviat contenant le métal précieux et/ou le métal chalcophile ; et (ii) la récupération du métal précieux et/ou du métal chalcophile dans le lixiviat.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)