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1. (WO2018089595) PROCESSING OF COBALTOUS SULPHATE/DITHIONATE LIQUORS DERIVED FROM COBALT RESOURCE
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Pub. No.: WO/2018/089595 International Application No.: PCT/US2017/060794
Publication Date: 17.05.2018 International Filing Date: 09.11.2017
IPC:
C01D 5/18 (2006.01) ,C01D 15/02 (2006.01) ,C01D 15/08 (2006.01) ,C22B 23/00 (2006.01) ,C22B 23/06 (2006.01) ,C22B 26/12 (2006.01)
C CHEMISTRY; METALLURGY
01
INORGANIC CHEMISTRY
D
COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
5
Sulfates or sulfites of sodium, potassium, or alkali metals in general
18
Dehydration
C CHEMISTRY; METALLURGY
01
INORGANIC CHEMISTRY
D
COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
15
Lithium compounds
02
Oxides; Hydroxides
C CHEMISTRY; METALLURGY
01
INORGANIC CHEMISTRY
D
COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
15
Lithium compounds
08
Carbonates; Bicarbonates
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
23
Obtaining nickel or cobalt
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
23
Obtaining nickel or cobalt
06
Refining
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
26
Obtaining alkali, alkaline earth metals or magnesium
10
Obtaining alkali metals
12
Obtaining lithium
Applicants:
ROCHER MANGANESE, INC. [US/US]; 2338 West Royal Palm Road Suite J Phoenix, Arizona 85021, US
Inventors:
CHOW, Norman; CA
JUNG, Joey Chung-Yen; CA
NACU, Anca Mihaela; CA
WARKENTIN, Douglas Dale; CA
Agent:
PUNTIGAM, Clark; US
Priority Data:
62/421,13911.11.2016US
Title (EN) PROCESSING OF COBALTOUS SULPHATE/DITHIONATE LIQUORS DERIVED FROM COBALT RESOURCE
(FR) TRAITEMENT DE LIQUEURS DE SULFATE DE COBALT/DITHIONATE DÉRIVÉES DE RESSOURCES DE COBALT
Abstract:
(EN) A process for water removal and/or recycling of sodium sulfate and/or sodium dithionate containing liquors derived from processing cobalt resource material essentially free of lithium comprising the steps of precipitation of cobalt as cobaltous carbonate or cobaltous hydroxide followed by removal thereof from the liquor, crystallization of sodium sulfate and sodium dithionate and removal of the crystals, followed by heating of the crystals to anhydrous sodium sulfate, sulphur dioxide and water and then separating the anhydrous sodium sulfate.
(FR) L'invention concerne un procédé d'élimination d'eau et/ou de recyclage de sulfate de sodium et/ou de sodium dithionate contenant des liqueurs dérivées d'un matériau de ressource de cobalt de traitement essentiellement exempt de lithium comprenant les étapes de précipitation du cobalt en tant que carbonate cobalteux ou hydroxyde cobalteux suivie d'une élimination de celui-ci de la liqueur, la cristallisation du sulfate de sodium et du sodium dithionate et l'élimination des cristaux, suivie d'un chauffage des cristaux en sulfate de sodium anhydre, dioxyde de soufre et eau, puis la séparation du sulfate de sodium anhydre.
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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 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: English (EN)
Filing Language: English (EN)