AU2004200385A1 - Method of Obtaining Nickel - Google Patents
Method of Obtaining Nickel Download PDFInfo
- Publication number
- AU2004200385A1 AU2004200385A1 AU2004200385A AU2004200385A AU2004200385A1 AU 2004200385 A1 AU2004200385 A1 AU 2004200385A1 AU 2004200385 A AU2004200385 A AU 2004200385A AU 2004200385 A AU2004200385 A AU 2004200385A AU 2004200385 A1 AU2004200385 A1 AU 2004200385A1
- Authority
- AU
- Australia
- Prior art keywords
- ore
- cooling
- inert gas
- nickel
- cooled
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims description 35
- 238000000034 method Methods 0.000 title claims description 19
- 229910052759 nickel Inorganic materials 0.000 title claims description 17
- 238000001816 cooling Methods 0.000 claims description 18
- 239000002826 coolant Substances 0.000 claims description 12
- 239000007789 gas Substances 0.000 claims description 11
- 239000011261 inert gas Substances 0.000 claims description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 229910017052 cobalt Inorganic materials 0.000 claims description 8
- 239000010941 cobalt Substances 0.000 claims description 8
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 8
- 238000002386 leaching Methods 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 150000002739 metals Chemical class 0.000 claims description 5
- 238000010405 reoxidation reaction Methods 0.000 claims description 5
- 239000000428 dust Substances 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 238000005273 aeration Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 238000009854 hydrometallurgy Methods 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 230000007717 exclusion Effects 0.000 claims description 2
- 241001559589 Cullen Species 0.000 claims 1
- 238000009434 installation Methods 0.000 description 4
- CNJLMVZFWLNOEP-UHFFFAOYSA-N 4,7,7-trimethylbicyclo[4.1.0]heptan-5-one Chemical compound O=C1C(C)CCC2C(C)(C)C12 CNJLMVZFWLNOEP-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000009853 pyrometallurgy Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/26—Cooling of roasted, sintered, or agglomerated ores
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B23/00—Obtaining nickel or cobalt
- C22B23/02—Obtaining nickel or cobalt by dry processes
- C22B23/021—Obtaining nickel or cobalt by dry processes by reduction in solid state, e.g. by segregation processes
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B23/00—Obtaining nickel or cobalt
- C22B23/04—Obtaining nickel or cobalt by wet processes
- C22B23/0407—Leaching processes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D15/00—Handling or treating discharged material; Supports or receiving chambers therefor
- F27D15/02—Cooling
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Geology (AREA)
- Geochemistry & Mineralogy (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacture And Refinement Of Metals (AREA)
Description
AUSTRALIA
Patents Act 1990 COMPLETE SPECIFICATION FOR A STANDARD PATENT Name of Applicant: Actual Inventors: Address for Service: Invention Title: Details of Basic Application: The following statement is a performing it, known to us: Polysius AG Guide Grund, Norbert Patzelt, Dietrich Menzel, Jirgen Kionus and Martin Uhde CULLEN CO.
Patent Trade Mark Attorneys, 239 George Street Brisbane QId 4000 Australian Method of Obtaining Nickel German Patent Application No. 103 08 269.7 filed 26 February 2003 full description of this invention, including the best method of la Method of obtaining nickel The invention relates to a method of obtaining nickel by reduction, cooling and further processing of ore.
Metallic nickel is produced inter alia by the Caron process in a combined pyrometallurgical and hydrometallurgical process. In this case ground lateritic nickel ore is partially reduced in a furnace and then leached in order to obtain nickel and cobalt, and the reduced ore must be cooled before leaching.
The reduction often takes place in Herreshoff multi-storey furnaces with a discharge temperature of over 700'C. In the furnace the predominant proportion of the nickel and a proportion of the iron are converted into the metallic form. The cooling of the hot material after the furnace currently takes place in rotary drum coolers to a temperature of 200 to 150'C. During leaching, a reoxidation of the nickel (and cobalt) fraction in the reduced ore must be avoided. The subsequent leaching operates at a temperature of below 100 0 C, lower temperatures increasing the metal yield.
In order to improve the leaching a more effective cooling of the reduced ore to a temperature of markedly below 100 0 C is desirable. In this case, however, reoxidation of nickel and cobalt in the fine-grained ore must be avoided. However, this cannot be achieved with the rotary drum coolers currently in use.
The object of the invention, therefore, is to improve the method of obtaining nickel by more effective cooling.
According to the invention this object is achieved by the features of Claim 1, in that the reduced ore is aerated with an inert gas during cooling and is cooled indirectly by a cooling medium.
Further embodiments are the subject matter of the subordinate claims.
-2- In a preferred embodiment the inert gas does not have an oxidising action in particular in relation to the valuable metals nickel and cobalt. Within the scope of the invention it is also conceivable that, during cooling, fluids and/or gases having a selective oxidising action are introduced which do not have an oxidising action in relation to the valuable metals nickel and cobalt and bring about a targeted reoxidation in the case of other components of the ore, such as iron.
The cooling medium, for example hot steam, oil, air or water, is preferably delivered in counter-current to the reduced ore and can be used in the hot zone for heat recovery.
Further embodiments and advantages of the invention are explained in greater detail with reference to the following description and the drawing.
The drawing shows a cooling stage of an installation for obtaining nickel.
The central apparatus is formed by a fluidised-bed cooler 1 which has an inlet la for the hot ore 2 reduced in a preceding unit and an outlet lb for the cooled ore 2'.
The fluidised-bed cooler 1 further comprises individual segments which contain cooling registers Ic. The cooling registers lc can for example consist of plates, tubes or chambers which may be designed with/without external ribs.
A cooling medium flows through the cooling registers Ic in counter-current to the reduced ore 2.
Hot steam, oil, air or water can be used for example as the cooling medium. The cooling medium heated in the fluidised-bed cooler is drawn off in the region of the inlet l a of the fluidised-bed cooler 1 via a conduit 4, and a heat recovery installation 5 can be provided for example in the hot zone. Naturally, it is also conceivable to ensure effective cooling by way of a cooling tower. The cooled cooling medium proceeds into a storage tank 6 and from there 3 via the conduit 3 back to the fluidised-bed cooler 1. The storage tank 6 also has a connection 7 through which additional cooling medium can be supplied if required.
The fluidised-bed cooler 1 also has a porous aerating base Id, by means of which the reduced ore 2 is constantly aerated and thus a good heat transfer to the cooling registers or the cooling medium is possible. In this case the cooling medium draws of the majority of the heat entrained in the reduced ore 2'.
An inert gas which is introduced via conduits 8a, 8b, 8c through the aerating base Id serves for aeration of the reduced ore The aerating base is advantageously divided, so that the inert gas flows through the cooling registers independently of one another.
In order to minimise the gas consumption, the gas is recirculated and if necessary can be cooled and freed of dust. In the illustrated embodiment, after the inert gas has flowed through the fluidised-bed cooler 1 it is delivered via conduits 9 to a first and second dust collector 11. The dust which is filtered out is discharged whilst the dust-free gas is delivered to one or more gas coolers 12 and then introduced via the conduits 8a, 8b, Sc into the fluidised-bed cooler 1. Additional inert gas can be supplied via a connection 10 from a storage tank which is not shown in greater detail.
In order to disconnect the gas atmosphere of the fluidised-bed cooler 1 from the units upstream and downstream of it, gate or flap valves can be provided before or after the cooler which ensure exclusion of gas.
Nitrogen or inter alia an exhaust gas containing CO/H 2 may be considered as inert gas.
Within the scope of the invention it is also conceivable that for aeration fluids and/or gases having a selective oxidising action are introduced which do not have an oxidising action in relation to the valuable metals nickel and cobalt and bring about a targeted reoxidation in the case of other components of the ore, such as iron.
-4- During further processing the cooled ore 2' is subjected to a hydrometallurgical process, particularly leaching.
By comparison with the conventional rotary drum coolers, the fluidised-bed cooler according to the invention is distinguished in particular by the following advantages: a lower final temperature of the reduced ore, improved heat transfer, compact construction of the cooler.
In the case of new installations operating by the Caron process, the method according to the invention offers the possibility of incorporated the fluidised-bed cooler described above. It is also possible to replace the rotary drum cooler in existing installations by the fluidised-bed cooler described above.
Claims (8)
1. Method of obtaining nickel by reduction, cooling and further processing of ore, characterised in that the reduced ore is aerated with an inert gas during cooling and is cooled indirectly by a cooling medium.
2. Method as claimed in Claim 1, characterised in that the inert gas does not have an oxidising action in relation to the valuable metals nickel and cobalt.
3. Method as claimed in Claim 1, characterised in that the inert gas is recirculated.
4. Method as claimed in Claim 1, characterised in that the cooling medium is delivered in counter-current to the reduced ore Method as claimed in Claim 1, characterised in that during further processing the cooled ore is subjected to a hydrometallurgical process, particularly leaching.
6. Method as claimed in Claim 1, characterised in that the inert gas is recirculated and is cooled and freed of dust during the recirculation.
7. Method as claimed in Claim 1, characterised in that cooling medium is used in the hot zone for heat recovery.
8. Method as claimed in Claim 1, characterised in that ore is delivered to or drawn off from the cooling in such a way that exclusion of gas is ensured.
9. Method as claimed in Claim 1, characterised in that for aeration fluids and/or gases having a selective oxidising action are introduced which do not have an oxidising action in relation to the valuable metals nickel and cobalt and bring about a targeted reoxidation in the case of other components of the ore, such as iron. 6 Method as claimed in Claim 1, characterised in that the cooling takes place in a fluidised-bed cooler Dated this 4 h Day of February 2004 Polysius AG By their Patent Attorneys CULLEN CO
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10308269.7A DE10308269B4 (en) | 2003-02-26 | 2003-02-26 | Process for recovering nickel |
| DE10308269.7 | 2003-02-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2004200385A1 true AU2004200385A1 (en) | 2004-09-09 |
| AU2004200385B2 AU2004200385B2 (en) | 2008-02-28 |
Family
ID=32841917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2004200385A Ceased AU2004200385B2 (en) | 2003-02-26 | 2004-02-04 | Method of Obtaining Nickel |
Country Status (7)
| Country | Link |
|---|---|
| AU (1) | AU2004200385B2 (en) |
| BR (1) | BRPI0400491B1 (en) |
| CA (1) | CA2457379C (en) |
| CU (1) | CU23287A3 (en) |
| DE (1) | DE10308269B4 (en) |
| FR (1) | FR2852969B1 (en) |
| RU (1) | RU2322521C2 (en) |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR548423A (en) * | 1921-03-21 | 1923-01-15 | Process for the extraction of nickel from its ores, in particular hydrosilicates with low nickel content | |
| FR27575E (en) * | 1923-05-25 | 1924-07-31 | Clevenger & Caron | Nickel ore processing process |
| CA921265A (en) * | 1970-07-08 | 1973-02-20 | The International Nickel Company Of Canada | Reduction of nickel oxide in a rotary hearth furnace |
| US3860689A (en) * | 1973-07-19 | 1975-01-14 | Sherritt Gordon Mines Ltd | Process for treating high magnesium nickeliferous laterites and garnierites |
| US3854024A (en) * | 1974-02-01 | 1974-12-10 | Dca Food Ind | Environmental temperature control system |
| DE2809172A1 (en) * | 1978-03-03 | 1979-09-06 | Kloeckner Humboldt Deutz Ag | PROCESS AND SYSTEM FOR COOLING REDUCED GOODS SUCH AS FINE-GRAIN ORE |
| DE3008234A1 (en) * | 1980-01-23 | 1981-07-30 | Aluterv-EKI Forschungs-, Entwurfs-u.Generalauftragnehmer-Zentrale der ungar. Aluminiumwerke, Budapest | METHOD AND SYSTEM FOR BURNING FINE-GRAINED GOODS |
| US4312841A (en) * | 1980-06-25 | 1982-01-26 | Uop Inc. | Enhanced hydrometallurgical recovery of cobalt and nickel from laterites |
| US4381939A (en) * | 1981-01-29 | 1983-05-03 | Midrex Corporation | Method for selective reduction of metallic oxides |
| JPS6053730B2 (en) * | 1981-06-26 | 1985-11-27 | 康勝 玉井 | Nickel refining method |
| US4466898A (en) * | 1982-04-26 | 1984-08-21 | International Flavors & Fragrances Inc. | Methyl substituted oxobicyclo-4,4,0-decane derivatives, process for preparing same and organoleptic uses thereof |
| US4701217A (en) * | 1986-11-06 | 1987-10-20 | University Of Birmingham | Smelting reduction |
| JP2556077B2 (en) * | 1987-12-26 | 1996-11-20 | 日本鋼管株式会社 | Cr smelting reduction method for raw ore |
| JPH09310126A (en) * | 1996-05-16 | 1997-12-02 | Daido Steel Co Ltd | Method for producing metal from metal oxide |
| CU22856A1 (en) * | 1997-02-18 | 2003-05-26 | Ct De Investigaciones Para La Ind Minero Metalurgi | HYDROMETALURGICAL PROCEDURE FOR THE RECOVERY OF NICKEL AND COBALT |
| RU2258092C2 (en) * | 1999-01-12 | 2005-08-10 | Фэлконбридж Лимитед | Method of reducing laterite particles in reactor with bubbled fluidized bed to produce in situ reducing gas |
| ATE521724T1 (en) * | 2002-12-17 | 2011-09-15 | Council Scient Ind Res | METHOD FOR EXTRACTING NICKEL FROM LOW-QUALITY CHROME ORE |
-
2003
- 2003-02-26 DE DE10308269.7A patent/DE10308269B4/en not_active Expired - Fee Related
-
2004
- 2004-02-04 AU AU2004200385A patent/AU2004200385B2/en not_active Ceased
- 2004-02-09 CU CU20040028A patent/CU23287A3/en unknown
- 2004-02-10 BR BRPI0400491-4A patent/BRPI0400491B1/en not_active IP Right Cessation
- 2004-02-11 CA CA 2457379 patent/CA2457379C/en not_active Expired - Fee Related
- 2004-02-25 RU RU2004105677/02A patent/RU2322521C2/en not_active IP Right Cessation
- 2004-02-26 FR FR0402111A patent/FR2852969B1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE10308269B4 (en) | 2015-06-11 |
| DE10308269A1 (en) | 2004-09-09 |
| CA2457379A1 (en) | 2004-08-26 |
| FR2852969B1 (en) | 2007-02-09 |
| CU23287A3 (en) | 2008-06-30 |
| RU2322521C2 (en) | 2008-04-20 |
| FR2852969A1 (en) | 2004-10-01 |
| RU2004105677A (en) | 2005-08-10 |
| CA2457379C (en) | 2011-09-27 |
| BRPI0400491B1 (en) | 2015-03-17 |
| BRPI0400491A (en) | 2005-05-24 |
| AU2004200385B2 (en) | 2008-02-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FGA | Letters patent sealed or granted (standard patent) | ||
| MK14 | Patent ceased section 143(a) (annual fees not paid) or expired |