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[Parsed Query:ID:"WO2012024294"
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PATENTSCOPE
1. (WO2012024294) PROCESSING OF MANGANOUS SULPHATE/DITHIONATE LIQUORS
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Pub. No.:
WO/2012/024294
International Application No.:
PCT/US2011/047916
Publication Date:
23.02.2012
International Filing Date:
16.08.2011
IPC:
C22B 47/00
(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
47
Obtaining manganese
Applicants:
AMERICAN MANGANESE INC.
[CA/US]; 2533 North Carson Street, Suite 3913 Carson City, NV 89706 (US)
(For All Designated States Except US)
.
CHOW, Norman
[CA/CA]; (CA)
(For US Only)
.
FISHER, John, W.
[CA/CA]; (CA)
(For US Only)
.
WARKENTI, Douglas
[CA/CA]; (CA)
(For US Only)
.
NACU, Anca-mihaela
[CA/CA]; (CA)
(For US Only)
Inventors:
CHOW, Norman
; (CA).
FISHER, John, W.
; (CA).
WARKENTI, Douglas
; (CA).
NACU, Anca-mihaela
; (CA)
Agent:
PUNTIGAM, Clark, A.
; 2033 6th Avenue, Suite 1020 Seattle, WA 98121 (US)
Priority Data:
61/374,691
18.08.2010
US
Title
(EN)
PROCESSING OF MANGANOUS SULPHATE/DITHIONATE LIQUORS
(FR)
TRAITEMENT DE LIQUEURS DE SULFATE/DITHIONATE DE MANGANÈSE
Abstract:
(EN)
The process concerns hydrometallurgical processing of manganese sulphate and manganese dithionate containing liquors and recovery of water therefrom. Sodium sulphate and/or sodium dithionate containing liquors are derived from manganese sulphate and manganese dithionate containing liquids, which are then cooled to produce crystals of sodium sulphate decahydrate and sodium dithionate dehydrate. The sodium sulphate decahydrate and sodium dithionate dehydrate crystals are then heated to a temperature sufficient to decompose the sodium sulphate decahydrate crystals to form anhydrous sodium sulphate crystals, sodium dithionate hydrate crystals and water, after which water is removed from the sodium sulphate and sodium dithionate hydrate crystal. The sodium sulphate and sodium dithionate dehydrate crystals are then heated to form anhydrous sodium sulphate, sulfur dioxide and water or steam. The anhydrous sodium sulphate is then separated from the sulfur dioxide and water.
(FR)
La présente invention concerne un procédé comprenant un traitement hydrométallurgique de liqueurs contenant du sulfate de manganèse et du dithionate de manganèse et la récupération d'eau à partir de celles-ci. Des liqueurs contenant du sulfate de sodium et/ou du dithionate de sodium sont dérivées des liquides contenant du sulfate de manganèse et du dithionate de manganèse, qui sont ensuite refroidis pour produire des cristaux de sulfate de sodium décahydraté et de dithionate de sodium décahydraté. Les cristaux de sulfate de sodium décahydraté et de dithionate de sodium décahydraté sont ensuite chauffés à une température suffisante pour décomposer les cristaux de sulfate de sodium décahydraté afin de former des cristaux de sulfate de sodium anhydre, des cristaux de dithionate de sodium hydraté et de l'eau, après quoi l'eau a été éliminée des cristaux de sulfate de sodium et de dithionate de sodium hydratés. Les cristaux de sulfate de sodium et de dithionate de sodium déshydratés ont ensuite été chauffés afin de former du sulfate de sodium anhydre, du dioxyde de soufre et de l'eau ou de la vapeur d'eau. Le sulfate de sodium anhydre est ensuite séparé du dioxyde de soufre et de l'eau.
Designated States:
AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, 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, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, QA, RO, RS, RU, 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 Org. (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (EAPO) (AM, AZ, BY, KG, KZ, MD, 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 (OAPI) (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language:
English (EN)
Filing Language:
English (EN)