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1. (WO2018043183) METHOD FOR RECOVERING SCANDIUM
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Pub. No.: WO/2018/043183 International Application No.: PCT/JP2017/029813
Publication Date: 08.03.2018 International Filing Date: 21.08.2017
IPC:
C22B 59/00 (2006.01) ,C22B 1/02 (2006.01) ,C22B 3/26 (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
1
Preliminary treatment of ores or scrap
02
Roasting processes
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
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
今村 正樹 IMAMURA Masaki; JP
中井 修 NAKAI Osamu; JP
小林 宙 KOBAYASHI Hiroshi; JP
Agent:
正林 真之 SHOBAYASHI Masayuki; JP
林 一好 HAYASHI Kazuyoshi; JP
Priority Data:
2016-16847930.08.2016JP
Title (EN) METHOD FOR RECOVERING SCANDIUM
(FR) PROCÉDÉ DE RÉCUPÉRATION DE SCANDIUM
(JA) スカンジウムの回収方法
Abstract:
(EN) Provided is a method for recovering scandium as scandium oxide that contains high-quality scandium and in which coarse particles having good handling properties are formed. This method for recovering scandium includes a step for carrying out an oxalate conversion process wherein oxalic acid is used in a solution containing scandium (scandium-containing solution) to generate a reaction in which the scandium is converted into an oxalate form, the method characterized in that the temperature of the reaction solution during the oxalate conversion process is 50°C to 80°C.
(FR) La présente invention décrit un procédé de récupération de scandium sous la forme d'oxyde de scandium qui contient du scandium de haute qualité et dans lequel des particules grossières présentant de bonnes propriétés de manipulation sont formées. Ce procédé de récupération de scandium comprend une étape d'exécution d'un procédé de conversion d'oxalate où l'acide oxalique est utilisé dans une solution contenant du scandium (solution contenant du scandium) afin de générer une réaction dans laquelle le scandium est converti en une forme oxalate, le procédé caractérisé en ce que la température de la solution réactionnelle durant le procédé de conversion d'oxalate est de 50 °C à 80 °C.
(JA) 高い品位でスカンジウムを含有し、さらにハンドリング性が良好な粗大な粒子形態をした酸化スカンジウムとしてスカンジウムを回収する方法を提供する。 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(スカンジウム含有溶液)にシュウ酸を用いて、スカンジウムをシュウ酸化する反応を生じさせるシュウ酸化処理を施す工程を含むスカンジウムの回収方法において、シュウ酸化処理に際して、処理中の反応溶液の温度を50℃以上80℃以下とすることを特徴とする。
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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, JO, 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 Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (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)