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1. (WO2017130692) METHOD FOR RECOVERING SCANDIUM
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2017/130692 International Application No.: PCT/JP2017/000601
Publication Date: 03.08.2017 International Filing Date: 11.01.2017
IPC:
C22B 59/00 (2006.01) ,C22B 3/08 (2006.01) ,C22B 3/24 (2006.01) ,C22B 3/28 (2006.01) ,C22B 3/42 (2006.01) ,C22B 3/44 (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
59
Obtaining rare earth 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
3
Extraction of metal compounds from ores or concentrates by wet processes
04
by leaching
06
in inorganic acid solutions
08
Sulfuric acid
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
20
Treatment or purification of solutions, e.g. obtained by leaching
22
by physical processes, e.g. by filtration, by magnetic means
24
by adsorption on solid substances, e.g. by extraction with solid resins
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
20
Treatment or purification of solutions, e.g. obtained by leaching
26
by liquid-liquid extraction using organic compounds
28
Amines
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
20
Treatment or purification of solutions, e.g. obtained by leaching
42
by ion-exchange extraction
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
20
Treatment or purification of solutions, e.g. obtained by leaching
44
by chemical processes
Applicants:
住友金属鉱山株式会社 SUMITOMO METAL MINING CO., LTD. [JP/JP]; 東京都港区新橋5-11-3 11-3, Shimbashi 5-chome, Minato-ku, Tokyo 1058716, JP
Inventors:
檜垣 達也 HIGAKI, Tatsuya; JP
松本 伸也 MATSUMOTO, Shin-ya; JP
永井 秀昌 NAGAI, Hidemasa; JP
小林 宙 KOBAYASHI, Hiroshi; JP
Agent:
正林 真之 SHOBAYASHI, Masayuki; JP
林 一好 HAYASHI, Kazuyoshi; JP
Priority Data:
2016-01173925.01.2016JP
Title (EN) METHOD FOR RECOVERING SCANDIUM
(FR) PROCÉDÉ DE RÉCUPÉRATION DU SCANDIUM
(JA) スカンジウムの回収方法
Abstract:
(EN) A method for recovering scandium is provided, which is capable of recovering highly-pure scandium from nickel oxide ore in a simple and efficient manner. The method for recovering scandium pertaining to the present invention has: a first neutralization step for passing a solution containing scandium over an ion exchange resin, adding a neutralizing agent to the eluent eluted from the ion exchange resin and performing a neutralization treatment, and obtaining a primary neutralized sediment and a primary neutralized filtrate by solid-liquid separation; a second neutralization step for further adding a neutralizing agent to the primary neutralized filtrate and performing a neutralization treatment, and obtaining a secondary neutralized sediment and a secondary neutralized filtrate by solid-liquid separation; a hydroxide dissolution step for adding acid to the secondary neutralized sediment and obtaining a hydroxide solution; a solvent extraction step for subjecting the hydroxide solution to solvent extraction; and a scandium recovery step for recovering scandium oxide from a raffinate separated in the solvent extraction step.
(FR) La présente invention concerne un procédé de récupération de scandium apte à récupérer du scandium de pureté élevée à partir de minerai d'oxyde de nickel, de façon simple et efficace. Le procédé de récupération de scandium selon la présente invention comprend : une première étape de neutralisation pour faire passer une solution contenant du scandium sur une résine échangeuse d'ions, ajouter un agent de neutralisation à l'éluant élué depuis la résine échangeuse d'ions et effectuer un traitement de neutralisation, et obtenir un sédiment neutralisé primaire et un filtrat neutralisé primaire par séparation solide-liquide ; une seconde étape de neutralisation pour ajouter un agent de neutralisation supplémentaire au filtrat neutralisé primaire et effectuer un traitement de neutralisation, et obtenir un sédiment neutralisé secondaire et un filtrat neutralisé secondaire par séparation solide-liquide ; une étape de dissolution d'hydroxyde pour ajouter de l'acide au sédiment neutralisé secondaire et obtenir une solution d'hydroxyde ; une étape d'extraction au solvant pour soumettre la solution d'hydroxyde à une extraction au solvant ; et une étape de récupération de scandium pour récupérer l'oxyde de scandium à partir d'un raffinat séparé dans l'étape d'extraction au solvant.
(JA) ニッケル酸化鉱石から高純度のスカンジウムを簡便に且つ効率よく回収することができるスカンジウムの回収方法を提供する。 本発明に係るスカンジウムの回収方法は、スカンジウムを含有する溶液をイオン交換樹脂に通液し、そのイオン交換樹脂から溶離した溶離液に中和剤を添加して中和処理を施し、固液分離により1次中和澱物と1次中和濾液とを得る第1の中和工程と、1次中和濾液にさらに中和剤を添加して中和処理を施し、固液分離により2次中和澱物と2次中和濾液とを得る第2の中和工程と、2次中和澱物に酸を添加して水酸化物溶解液を得る水酸化物溶解工程と、水酸化物溶解液を溶媒抽出に付す溶媒抽出工程と、溶媒抽出工程にて分離された抽残液から酸化スカンジウムを回収するスカンジウム回収工程とを有する。
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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, 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: Japanese (JA)
Filing Language: Japanese (JA)
Also published as:
AU2017213212CA3012088CN108463567CUP2018000077EP3409800ID2018/12516
US20190024213PH1/2018/501557