CN103498064A - Composite flux for laterite nickel ore smelting and application thereof - Google Patents
Composite flux for laterite nickel ore smelting and application thereof Download PDFInfo
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- CN103498064A CN103498064A CN201310497994.8A CN201310497994A CN103498064A CN 103498064 A CN103498064 A CN 103498064A CN 201310497994 A CN201310497994 A CN 201310497994A CN 103498064 A CN103498064 A CN 103498064A
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- nickel
- nickel ore
- laterite
- ore smelting
- composite flux
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Abstract
The invention discloses composite flux for laterite nickel ore smelting. The composite flux for laterite nickel ore smelting is composed of, by weight, 1 - 5 parts of CaO, 1 to 4 parts of fluorite, 0.1 - 0.5 part of sodium carbonate, 0.1 - 1 part of sodium sulfate, 1 - 5 parts of barium carbonate, and 1 to 3 parts of potassium chlorate. The composite flux for laterite nickel ore smelting is simple and reasonable in component, and can effectively reduce the reduction temperature and reduce the slag phase melting point, thereby improving the recovery rate of the ferronickel in a large range, promoting nickel ferrite and silicic acid to revert to nickel, improving the reduction rate of the nickel, increasing the dialysis performance of iron-nickel alloy, reducing the wrapping to the slag phase of the particle-sized iron-nickel alloy, and improving the purity of the iron-nickel alloy. The composite flux for laterite nickel ore smelting provides a new approach for comprehensive processing of laterite nickel ores.
Description
Technical field
The present invention relates to a kind of smelting laterite-nickel ores technology, particularly a kind of tunnel furnace is without composite fluxing agent and the application of tank reduction red soil nickel ore.
Background technology
Red soil nickel ore is veneer of crust weathering crust type mineral deposit, is the residual product of nickeliferous basic and ultrabasic body through weathering-leaching-deposition.Industrial type is silicic acid nickel oxidized ore, and silicon magnesium is than higher, and nickel mainly is isomorph or adsorbed state is distributed in mineral lattice, distribution uniform, separation difficulty.Smelt red soil nickel ore MgO content 15-20% commonly used, SiO
2between 35-40%, because MgO content in red soil nickel ore is high, the fusing point of the slag of generation is high, and viscosity is large, causes Rhometal dialysis property poor, and the metal coherency is poor, causes the slag shim serious, affects metal recovery rate; Rhometal particle parcel slag is mutually serious, affects product purity.Ni content 1.0-1.8%, between Fe10-30%, foreign matter content is high, and the smelting quantity of slag is large, slag iron separation difficulty.
Summary of the invention
Technical problem to be solved by this invention is for the deficiencies in the prior art, provides a kind of component reasonable, smelting laterite-nickel ores composite fluxing agent easy to use.
Another technical problem of the present invention is to provide the application of above-mentioned composite fluxing agent.
Technical problem to be solved by this invention is to realize by following technical scheme.The present invention is a kind of smelting laterite-nickel ores composite fluxing agent, is characterized in, it is comprised of the raw material of following weight proportion, CaO 1～5, fluorite 1～4, sodium carbonate 0.1～0.5, sodium sulfate 0.1～1, barium carbonate 1～5, Potcrate 1～3.
Above-described smelting laterite-nickel ores is with in the composite fluxing agent technical scheme: the weight proportion of each raw material is: CaO 4.8, fluorite 2.4, sodium carbonate 0.3, sodium sulfate 0.4, barium carbonate 4.8, Potcrate 2.4.
The purposes of composite fluxing agent of the present invention in the red soil nickel ore tunnel furnace is produced without tank reduction ferronickel.During use, the weight proportion of composite fluxing agent and red soil nickel ore is 5-20:100.
Composite auxiliary solvent component advantages of simple of the present invention, this composite fluxing agent can effectively reduce reduction temperature, reduces slag phase fusing point, thereby has increased substantially the ferronickel rate of recovery; Impel nickel ferrite based magnetic loaded and silicic acid nickel to be reduced into nickel, improve the reduction ratio of nickel, increase the dialysis performance of iron-nickel alloy, reduce the parcel of granular Rhometal to the slag phase, improve the purity of Rhometal; For the red soil nickel ore comprehensive treating process provides a new approach.
Embodiment
Below further describe concrete technical scheme of the present invention, so that those skilled in the art understands the present invention further, and do not form the restriction to its right.
Embodiment 1, a kind of smelting laterite-nickel ores composite fluxing agent, and it is comprised of the raw material of following weight proportion, CaO 1～5, fluorite 1～4, sodium carbonate 0.1～0.5, sodium sulfate 0.1～1, barium carbonate 1～5, Potcrate 1～3.
Embodiment 2, and the described smelting laterite-nickel ores of embodiment 1 is with in composite fluxing agent, and the weight proportion of each raw material is: CaO 4.8, fluorite 2.4, sodium carbonate 0.3, sodium sulfate 0.4, barium carbonate 4.8, Potcrate 2.4.
Embodiment 3, embodiment 1 and the 2 described composite fluxing agents purposes in the red soil nickel ore tunnel furnace is produced without tank reduction ferronickel.
Embodiment 4, and according to the purposes of embodiment 3, in use, the weight proportion of composite fluxing agent and red soil nickel ore is 5-20:100.
Embodiment 5, get the 100Kg red soil nickel ore, and the red soil nickel ore composition is as follows:
By the red soil nickel ore abrasive dust, make to be less than 200 purpose breeze amounts >=90%.Get again CaO4.8Kg, fluorite 2.4 Kg, sodium carbonate 0.3Kg, sodium sulfate 0.4 Kg, barium carbonate 4.8 Kg, Potcrate 2.4 Kg mixing composition composite fluxing agents.The breeze, composite fluxing agent, the 200 order pulverized anthracite 15Kg that grind are fully mixed, add tap water 15L balling-up, diameter 20～the 30mm of ball, the ball become is wrapped to one deck coal dust, at the thick coal dust of laying 20mm on the retort furnace table top for test, the red soil nickel ore mixing ball that wraps coal dust is laid on coal dust, again at ball upper cover last layer coal dust, can't see the spheroid profile, be as the criterion, be warming up to 1200 ℃, be incubated 4 hours, take out after being cooled to 60 ℃, separate the post analysis result through magnetic separation as follows:
The reduzate result:
The Magnetic Materials result:
The nonmagnetics result:
Claims (4)
1. a smelting laterite-nickel ores composite fluxing agent, is characterized in that, it is comprised of the raw material of following weight proportion, CaO 1～5, fluorite 1～4, sodium carbonate 0.1～0.5, sodium sulfate 0.1～1, barium carbonate 1～5, Potcrate 1～3.
2. smelting laterite-nickel ores composite fluxing agent according to claim 1, it is characterized in that: the weight proportion of each raw material is: CaO 4.8, fluorite 2.4, sodium carbonate 0.3, sodium sulfate 0.4, barium carbonate 4.8, Potcrate 2.4.
3. the purposes of composite fluxing agent claimed in claim 1 in the red soil nickel ore tunnel furnace is produced without tank reduction ferronickel.
4. purposes according to claim 3, it is characterized in that: during use, the weight proportion of composite fluxing agent and red soil nickel ore is 5-20:100.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310497994.8A CN103498064A (en) | 2013-10-22 | 2013-10-22 | Composite flux for laterite nickel ore smelting and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310497994.8A CN103498064A (en) | 2013-10-22 | 2013-10-22 | Composite flux for laterite nickel ore smelting and application thereof |
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| CN103498064A true CN103498064A (en) | 2014-01-08 |
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| CN201310497994.8A Pending CN103498064A (en) | 2013-10-22 | 2013-10-22 | Composite flux for laterite nickel ore smelting and application thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110616284A (en) * | 2019-10-24 | 2019-12-27 | 中南大学 | High-efficiency alkali metal carbonate double-salt flux for smelting ferronickel in laterite-nickel ore electric furnace |
| CN111876620A (en) * | 2020-07-21 | 2020-11-03 | 浙江今飞凯达轮毂股份有限公司 | Titanium element additive and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010092234A1 (en) * | 2009-02-11 | 2010-08-19 | Outokumpu Oyj | Method for producing ferroalloy containing nickel |
| CN102234717A (en) * | 2011-03-29 | 2011-11-09 | 中国恩菲工程技术有限公司 | Method for roasting red mud nickel ore |
| CN102828055A (en) * | 2012-09-18 | 2012-12-19 | 辽宁凯圣锻冶有限公司 | Method for producing nickel iron from lateritic nickel ore |
-
2013
- 2013-10-22 CN CN201310497994.8A patent/CN103498064A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010092234A1 (en) * | 2009-02-11 | 2010-08-19 | Outokumpu Oyj | Method for producing ferroalloy containing nickel |
| CN102234717A (en) * | 2011-03-29 | 2011-11-09 | 中国恩菲工程技术有限公司 | Method for roasting red mud nickel ore |
| CN102828055A (en) * | 2012-09-18 | 2012-12-19 | 辽宁凯圣锻冶有限公司 | Method for producing nickel iron from lateritic nickel ore |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110616284A (en) * | 2019-10-24 | 2019-12-27 | 中南大学 | High-efficiency alkali metal carbonate double-salt flux for smelting ferronickel in laterite-nickel ore electric furnace |
| CN110616284B (en) * | 2019-10-24 | 2021-10-15 | 中南大学 | High-efficiency alkali metal carbonate double-salt flux for smelting ferronickel in laterite-nickel ore electric furnace |
| CN111876620A (en) * | 2020-07-21 | 2020-11-03 | 浙江今飞凯达轮毂股份有限公司 | Titanium element additive and preparation method thereof |
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Application publication date: 20140108 |