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1. WO2011005736 - PROCESSES FOR RECOVERING METALS FROM AQUEOUS SOLUTIONS

Publication Number WO/2011/005736
Publication Date 13.01.2011
International Application No. PCT/US2010/041032
International Filing Date 06.07.2010
IPC
C22B 3/00 2006.01
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION OR REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
3Extraction of metal compounds from ores or concentrates by wet processes
C22B 34/34 2006.01
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION OR REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
34Obtaining refractory metals
30Obtaining chromium, molybdenum or tungsten
34Obtaining molybdenum
CPC
C22B 3/0005
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION AND REFINING OF METALS
3Extraction of metal compounds from ores or concentrates by wet processes
0004Treatment or purification of solutions, e.g. obtained by leaching
0005by liquid-liquid extraction using organic compounds, e.g. acyclic or carbocyclic compounds, heterocyclic compounds, organo- metallic compounds, alcohols, ethers, or the like
C22B 3/0043
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION AND REFINING OF METALS
3Extraction of metal compounds from ores or concentrates by wet processes
0004Treatment or purification of solutions, e.g. obtained by leaching
0005by liquid-liquid extraction using organic compounds, e.g. acyclic or carbocyclic compounds, heterocyclic compounds, organo- metallic compounds, alcohols, ethers, or the like
004using organo-metallic compounds or organo compounds of boron, silicon, phosphorus, selenium or tellurim
0041using organo-metallic compounds of a single type
0043using phosphorus-based acid derivatives
C22B 3/0066
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION AND REFINING OF METALS
3Extraction of metal compounds from ores or concentrates by wet processes
0004Treatment or purification of solutions, e.g. obtained by leaching
0005by liquid-liquid extraction using organic compounds, e.g. acyclic or carbocyclic compounds, heterocyclic compounds, organo- metallic compounds, alcohols, ethers, or the like
004using organo-metallic compounds or organo compounds of boron, silicon, phosphorus, selenium or tellurim
0041using organo-metallic compounds of a single type
0043using phosphorus-based acid derivatives
0044of a single type
0045Acyclic compounds
0063Mononuclear oxyacids of pentavalent phosphorus or their esters(-ate)
0066Phosphinic (H2P(O)(OH)) type
C22B 34/34
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION AND REFINING OF METALS
34Obtaining refractory metals
30Obtaining chromium, molybdenum or tungsten
34Obtaining molybdenum
Y02P 10/20
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
10Technologies related to metal processing
20Process efficiency
Applicants
  • CYTEC TECHNOLOGY CORP. [US]/[US] (AllExceptUS)
  • BEDNARSKI, Troy [US]/[US] (UsOnly)
  • COCALIA, Violina [RO]/[US] (UsOnly)
  • SODERSTROM, Matthew [US]/[US] (UsOnly)
  • KAMENETZKY, Eduardo [US]/[US] (UsOnly)
  • CAMERON, Andrew [GB]/[US] (UsOnly)
  • HARRIS, Doug [US]/[US] (UsOnly)
Inventors
  • BEDNARSKI, Troy
  • COCALIA, Violina
  • SODERSTROM, Matthew
  • KAMENETZKY, Eduardo
  • CAMERON, Andrew
  • HARRIS, Doug
Agents
  • BELL, Charles, E.
Priority Data
61/223,49107.07.2009US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) PROCESSES FOR RECOVERING METALS FROM AQUEOUS SOLUTIONS
(FR) PROCÉDÉS DE RÉCUPÉRATION DE MÉTAUX À PARTIR DE SOLUTIONS AQUEUSES
Abstract
(EN)
Provided herein are processes for recovering molybdenum and/or other value metals (e.g., uranium) present in aqueous solutions from a large range of concentrations: from ppm to grams per liter via a solvent extraction process by extracting the molybdenum and/or other value metal from the aqueous solution by contacting it with an organic phase solution containing a phosphinic acid, stripping the molybdenum and/or other value metal from the organic phase solution by contacting it with an aqueous phase strip solution containing an inorganic compound and having a <1.0 M concentration of free ammonia, and recovering the molybdenum and/or other value metal by separating it from the aqueous phase strip solution. When the molybdenum and/or other value metal are present only in low concentration, the processes can include an organic phase recycle step and/or an aqueous phase strip recycle step in order to concentrate the metal prior to recovery.
(FR)
L'invention porte sur des procédés pour récupérer du molybdène et/ou autres métaux de valeur (par exemple l'uranium) présents dans des solutions aqueuses à partir d'une large gamme de concentrations : de ppm à des grammes par litre par un procédé d'extraction par solvant par extraction du molybdène et/ou autre métal de valeur à partir de la solution aqueuse par mise en contact de celle-ci avec une solution de phase organique contenant un acide phosphinique, redissolution du molybdène et/ou autre métal de valeur à partir de la solution en phase organique par mise en contact de celle-ci avec une solution de redissolution en phase aqueuse contenant un composé inorganique et ayant une concentration < 1,0 M d'ammoniac libre, et récupération du molybdène et/ou autre métal de valeur par séparation de celui-ci à partir de la solution de redissolution en phase aqueuse. Lorsque le molybdène et/ou autre métal de valeur sont présents seulement à de faibles concentrations, les procédés peuvent comprendre une étape de recyclage de la phase organique et/ou une étape de recyclage de la solution de redissolution en phase aqueuse de façon à concentrer le métal avant la récupération.
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