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1. (WO2018122465) METHOD FOR PRODUCING NICKEL CONTAINING INDURATED CHROMITE PELLETS, METHOD FOR PRODUCING FERROCHROME NICKEL ALLOY AND INDURATED CHROMITE PELLET
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Pub. No.: WO/2018/122465 International Application No.: PCT/FI2017/050956
Publication Date: 05.07.2018 International Filing Date: 29.12.2017
Chapter 2 Demand Filed: 26.10.2018
IPC:
C22B 1/04 (2006.01) ,C22B 1/11 (2006.01) ,C22B 1/20 (2006.01) ,C22B 1/214 (2006.01) ,C22B 1/216 (2006.01) ,C22B 1/24 (2006.01) ,C22B 1/243 (2006.01) ,C22B 1/244 (2006.01) ,C21C 5/52 (2006.01) ,C22B 7/02 (2006.01) ,C22B 1/245 (2006.01) ,C22B 23/02 (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
1
Preliminary treatment of ores or scrap
02
Roasting processes
04
Blast roasting
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
11
Removing sulfur, phosphorus or arsenic, other than by roasting
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
14
Agglomerating; Briquetting; Binding; Granulating
16
Sintering; Agglomerating
20
in sintering machines with movable grates
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
14
Agglomerating; Briquetting; Binding; Granulating
16
Sintering; Agglomerating
214
in shaft furnaces
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
14
Agglomerating; Briquetting; Binding; Granulating
16
Sintering; Agglomerating
216
in rotary furnaces
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
14
Agglomerating; Briquetting; Binding; Granulating
24
Binding; Briquetting
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
14
Agglomerating; Briquetting; Binding; Granulating
24
Binding; Briquetting
242
with binders
243
inorganic
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
14
Agglomerating; Briquetting; Binding; Granulating
24
Binding; Briquetting
242
with binders
244
organic
C CHEMISTRY; METALLURGY
21
METALLURGY OF IRON
C
PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
5
Manufacture of carbon steel, e.g. plain mild steel, medium carbon steel, or cast-steel
52
Manufacture of steel in electric furnaces
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
7
Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
02
Working-up flue dust
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
14
Agglomerating; Briquetting; Binding; Granulating
24
Binding; Briquetting
242
with binders
244
organic
245
with carbonaceous material for the production of coked agglomerates
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
02
by dry processes
Applicants:
OUTOTEC (FINLAND) OY [FI/FI]; Rauhalanpuisto 9 02230 Espoo, FI
Inventors:
MÄKELÄ, Pasi; FI
NÄRHI, Lauri; FI
PALOVAARA, Petri; FI
PEKKALA, Olli; FI
SAARENMAA, Jarmo; FI
Agent:
PAPULA OY; P.O. Box 981 00101 Helsinki, FI
Priority Data:
2016604630.12.2016FI
Title (EN) METHOD FOR PRODUCING NICKEL CONTAINING INDURATED CHROMITE PELLETS, METHOD FOR PRODUCING FERROCHROME NICKEL ALLOY AND INDURATED CHROMITE PELLET
(FR) PROCÉDÉ DE PRODUCTION DE BILLES DE CHROMITE DURCIES CONTENANT DU NICKEL, PROCÉDÉ DE PRODUCTION D'ALLIAGE DE NICKEL FERROCHROME ET BILLE DE CHROMITE DURCIE
Abstract:
(EN) Described is a method for producing nickel containing indurated chromite pellets. The method comprises providing a ground mixture containing iron and chromium containing material and optionally carbon and optionally additives;providing nickel bearing material comprising precipitated nickel compounds from a process for hydrometallurgical refining of nickel bearing raw material, binding agent, and optionally fluxing agent;mixing nickel bearing material, binding agent and optionally fluxing agent into the ground mixture to produce an agglomerating mixture;agglomerating the agglomerating mixture to produce green pellets;and indurating the green pellets to produce indurated chromite pellets. The method comprises heat-treating the nickel bearing material prior mixing the nickel bearing material into the ground mixture to remove sulfur, water, possible carbonates and volatiles from the nickel bearing material and to produce nickel oxides in the nickel bearing material.
(FR) La présente invention concerne un procédé de production de billes de chromite durcies contenant du nickel. Le procédé consiste à utiliser un mélange broyé contenant du fer et un matériau contenant du chrome et éventuellement du carbone et éventuellement des additifs ; à utiliser un matériau nickélifère comprenant des composés de nickel précipités en provenance d'un processus de raffinage hydrométallurgique de matière première nickélifère, un agent liant, et éventuellement un agent fluxant ; à mélanger un matériau nickélifère, un agent liant et éventuellement un agent fluxant dans le mélange broyé pour produire un mélange agglomérant ; à agglomérer le mélange agglomérant pour produire des billes crues ; et durcir les billes crues pour produire des billes de chromite durcies. Le procédé consiste à traiter thermiquement le matériau nickélifère avant de mélanger le matériau nickélifère dans le mélange broyé pour éliminer le soufre, l'eau, les carbonates éventuels et les substances volatiles contenus dans le matériau nickélifère et pour produire des oxydes de nickel dans le matériau nickélifère.
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)