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1. (WO2017058038) PROCESS FOR THE PRODUCTION OF METALLIC GOLD NANOPARTICLES FROM AN EFFLUENT ARISING FROM ACID MINE DRANAIGE BIOREMEDIATION
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2017/058038    International Application No.:    PCT/PT2015/050009
Publication Date: 06.04.2017 International Filing Date: 30.09.2015
IPC:
C22B 7/00 (2006.01), B22F 1/00 (2006.01), B22F 9/24 (2006.01), C22B 3/00 (2006.01)
Applicants: UNIVERSIDADE DO ALGARVE [PT/PT]; Campus de Gambelas 8005-139 Faro (PT).
CCMAR - CENTRO DE CIÊNCIAS DO MAR [PT/PT]; Universidade do Algarve Gambelas 8005-139 Faro (PT)
Inventors: MARIA CLARA, Silva Costa; (PT).
ANA FILIPA, Benedito Assunção; (PT)
Agent: VIEIRA PEREIRA FERREIRA, Maria Silvina; (PT)
Priority Data:
Title (EN) PROCESS FOR THE PRODUCTION OF METALLIC GOLD NANOPARTICLES FROM AN EFFLUENT ARISING FROM ACID MINE DRANAIGE BIOREMEDIATION
(FR) PROCÉDÉ POUR LA PRODUCTION DE NANOPARTICULES D'OR MÉTALLIQUE À PARTIR D'UN EFFLUENT PROVENANT DE LA BIORÉHABILITATION DE DRAINAGES MINIERS ACIDES
Abstract: front page image
(EN)The present request describes a process to obtain metallic gold nanoparticles from an effluent containing sulfide, resulting from a bioremediation process of acid mine drainage (AMD) based on the use of sulfate-reducing bacteria. The disclosed process consists of the effluent addition to a gold solution in concentrations between 20-250 mg/L, in batch or continuous systems, allowing to obtain nanoparticles of Au(0) with a yield of 70-100%.
(FR)La présente demande concerne un procédé pour obtenir des nanoparticules d'or métallique à partir d'un effluent contenant du sulfure, provenant de la bioréhabilitation de drainages miniers acides (DMA) basée sur l'utilisation de bactéries réductrices de sulfates. Le procédé de l'invention consiste à ajouter l'effluent à une solution d'or en des concentrations comprises entre 20 et 250 mg/L, dans des systèmes à fonctionnement discontinu ou continu, ce qui permet d'obtenir des nanoparticules d'Au(0) avec un rendement de 70 à 100 %.
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, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, 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 (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)