CN103205568A - Utilization method of laterite nickel ore - Google Patents
Utilization method of laterite nickel ore Download PDFInfo
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- CN103205568A CN103205568A CN2013100996408A CN201310099640A CN103205568A CN 103205568 A CN103205568 A CN 103205568A CN 2013100996408 A CN2013100996408 A CN 2013100996408A CN 201310099640 A CN201310099640 A CN 201310099640A CN 103205568 A CN103205568 A CN 103205568A
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- CN
- China
- Prior art keywords
- filtrate
- value
- heavy
- ore
- solution
- 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.)
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- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims abstract description 79
- 229910052759 nickel Inorganic materials 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 13
- 229910001710 laterite Inorganic materials 0.000 title abstract 3
- 239000011504 laterite Substances 0.000 title abstract 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 37
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 30
- 239000000706 filtrate Substances 0.000 claims abstract description 27
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229910052742 iron Inorganic materials 0.000 claims abstract description 19
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 15
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 14
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000007787 solid Substances 0.000 claims abstract description 12
- 238000001914 filtration Methods 0.000 claims abstract description 11
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims abstract description 9
- 239000001095 magnesium carbonate Substances 0.000 claims abstract description 9
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims abstract description 9
- 238000007885 magnetic separation Methods 0.000 claims abstract description 9
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910021487 silica fume Inorganic materials 0.000 claims abstract description 5
- 239000002002 slurry Substances 0.000 claims abstract description 5
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims abstract 2
- 238000000227 grinding Methods 0.000 claims abstract 2
- 239000012535 impurity Substances 0.000 claims abstract 2
- 229910052938 sodium sulfate Inorganic materials 0.000 claims abstract 2
- 235000011152 sodium sulphate Nutrition 0.000 claims abstract 2
- 239000002689 soil Substances 0.000 claims description 21
- 238000006243 chemical reaction Methods 0.000 claims description 16
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 12
- 239000004411 aluminium Substances 0.000 claims description 12
- 235000017550 sodium carbonate Nutrition 0.000 claims description 12
- 229910052749 magnesium Inorganic materials 0.000 claims description 9
- 239000011777 magnesium Substances 0.000 claims description 9
- 235000014380 magnesium carbonate Nutrition 0.000 claims description 7
- 229960001708 magnesium carbonate Drugs 0.000 claims description 7
- 239000000047 product Substances 0.000 claims description 7
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 4
- LVIYYTJTOKJJOC-UHFFFAOYSA-N nickel phthalocyanine Chemical compound [Ni+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 LVIYYTJTOKJJOC-UHFFFAOYSA-N 0.000 claims description 4
- 238000013019 agitation Methods 0.000 claims description 3
- 238000002425 crystallisation Methods 0.000 claims description 3
- 230000008025 crystallization Effects 0.000 claims description 3
- 229910052979 sodium sulfide Inorganic materials 0.000 claims description 3
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 claims description 3
- PANBYUAFMMOFOV-UHFFFAOYSA-N sodium;sulfuric acid Chemical compound [Na].OS(O)(=O)=O PANBYUAFMMOFOV-UHFFFAOYSA-N 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 2
- 238000013467 fragmentation Methods 0.000 claims 1
- 238000006062 fragmentation reaction Methods 0.000 claims 1
- 239000002244 precipitate Substances 0.000 claims 1
- 238000002386 leaching Methods 0.000 abstract description 4
- 239000002253 acid Substances 0.000 abstract description 2
- 230000008021 deposition Effects 0.000 abstract 2
- 239000008187 granular material Substances 0.000 abstract 2
- 238000002156 mixing Methods 0.000 abstract 2
- 238000001704 evaporation Methods 0.000 abstract 1
- 230000005389 magnetism Effects 0.000 abstract 1
- 238000000746 purification Methods 0.000 abstract 1
- 238000004090 dissolution Methods 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- WWNBZGLDODTKEM-UHFFFAOYSA-N sulfanylidenenickel Chemical compound [Ni]=S WWNBZGLDODTKEM-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000009854 hydrometallurgy Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001698 pyrogenic effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
A utilization method of laterite nickel ore mainly includes the steps of breaking and grinding laterite nickel ore into granules smaller than 80 micrometers in diameter, making the granules into slurry for wet magnetic separation, adding concentrated sulfuric acid into the magnetically separated slurry, mixing for leaching, mixing concentrated sulfuric acid and residue obtained by leaching and filtering, roasting to obtain clinker, dissolving the clinker in solution obtained by filtering after acid leaching, and filtering to obtain filtrate and silica fume; adding solid sodium carbonate to regulate pH value of the filtrate to deposit iron and aluminum, applying solid sodium carbonate to the deposited filtrate to regulate the pH value of the solution, adding hydrogen peroxide for deep impurity removal and purification; adding solid sodium carbonate into the purified filtrate to generate magnesium carbonate deposition, filtering to obtain finished magnesium carbonate, and evaporating and crystallizing the filtrate after magnetism deposition to obtain sodium sulfate.
Description
Technical field
The present invention relates to a kind of method of handling red soil nickel ore, be specifically related to a kind of silicon, magnesium, nickel constituent element of from red soil nickel ore, extracting, and preparation SILICA FUME, magnesiumcarbonate and nickelous sulfide product, realize the development and use of red soil nickel ore, belong to non-ferrous metal hydrometallurgy field.
Background technology
World's continental rise nickel reserves are about 6.2 hundred million t, and wherein 30% form with nickel sulfide ore exists, and 70% form with red soil nickel ore exists.About 60% nickel extracts from nickel sulfide ore in the world at present, but along with the continuous increase of nickel demand and the minimizing gradually that can supply the nickel sulfide ore resource of exploitation, the economic development of red soil nickel ore has become the research focus of current metallurgy of nickel.
At present, both at home and abroad the treatment process of red soil nickel ore has two kinds of pyrogenic process and wet methods, mainly reclaims the lower nickel of content in the ore, the recovery that has iron and cobalt, existing technology is brought huge harm and serious potential safety hazard to ecotope.In recent years, along with the proposition of national development recycling economy, the friendly type of built environment society, the utilization of red soil nickel ore more and more came into one's own.Therefore, novel process and the new technology of red soil nickel ore handled in research, realizes that the development and use of red soil nickel ore have important and practical meanings and using value.
Summary of the invention
Fail the present situation rationally handled at red soil nickel ore, the invention provides a kind of method of utilizing red soil nickel ore.
Purpose of the present invention can reach by following measure:
Red soil nickel ore is levigate to 80 μ m, and levigate red soil nickel ore breaks into slurry and carries out wet magnetic separation, and the water yield of adding and the mass ratio in ore deposit are 5:2～7:2.Wet magnetic separation obtains iron ore concentrate and ore pulp, the adding massfraction is 98% vitriol oil agitation leach in the ore pulp, the sulfuric acid amount that adds is behind the wet magnetic separation in the ore deposit 0.2～0.4 times of the required theoretical amount of nickel, iron, magnesium, aluminium and the lucky complete reaction of sulfuric acid, reaction times 10h～20h.The chemical reaction that relates to has:
React the after-filtration that finishes, filtrate is used for stripping calcining process gained grog, filter residue and massfraction are that 98% the vitriol oil is baking mixed, the sulfuric acid amount that adds is 0.6～0.8 times of the required theoretical amount of the lucky complete reaction of iron, magnesium, nickel, aluminium and sulfuric acid in the raw ore, 300 ℃～450 ℃ of maturing temperatures, constant temperature time 1h～2h.The tail gas sulfuric acid absorption that roasting produces.The chemical reaction that relates to is:
Roasting gained grog goes out the filtrate filtered stripping with acidleach, 60 ℃～80 ℃ of stripping temperature, dissolution time 0.5h～1.5h.Stripping finishes after-filtration, and the gained filter residue is SILICA FUME.The dissolution fluid of roasting grog sinks iron, heavy aluminium, 85 ℃～100 ℃ of temperature of reaction, stirring reaction, with solid sodium carbonate regulator solution pH value, make the pH value of solution value maintain 1.0～2.0, after concentration of iron reaches 1g/L in the solution, regulator solution pH value to 4.6 is filtered, and obtains iron, aluminium slag and filtrate.The reaction that heavy iron, heavy aluminium relate to has:
Filtrate is that 15%～20% sodium sulfide solution is adjusted the pH value with massfraction, and filtrate pH value reaches filtration in 6.5 o'clock, obtains the nickelous sulfide product, and the chemical reaction of generation is:
Filtrate behind the heavy nickel is carried out deep purifying: continue with solid sodium carbonate regulator solution pH value to 8.5～9.0, and add hydrogen peroxide, carry out deep impurity-removing.Add solid sodium carbonate in the filtrate after purify, stir, 20 ℃～90 ℃ of temperature of reaction, adding the yellow soda ash amount is 1.1 times that magnesium forms the required theoretical value of magnesiumcarbonate, filters and obtains magnesiumcarbonate product, filtrate evaporative crystallization reclaim(ed) sulfuric acid sodium.
Description of drawings
Accompanying drawing is a kind of process flow sheet that utilizes the method for red soil nickel ore.
Embodiment
Embodiment
Used red soil nickel ore mainly consists of: Ni 0.71%, and Fe 12.43%, and MgO 13.94%, and CaO 0.92%, Al
2O
36.09%, SiO
243.31%, other is 22.60% years old.
Red soil nickel ore is levigate to 80 μ m, and levigate red soil nickel ore breaks into slurry and carries out wet magnetic separation, and the water yield of adding and the mass ratio in ore deposit are 6:2.It is 98% vitriol oil agitation leach that wet magnetic separation obtains in the ore pulp adding massfraction, and the sulfuric acid amount of adding is after the wet separation in the ore deposit 0.3 times of the required theoretical amount of nickel, iron, magnesium, aluminium and the lucky complete reaction of sulfuric acid, 70 ℃ of acidleach temperature, reaction times 10h.The reaction after-filtration that finishes, filter residue and massfraction are that 98% the vitriol oil is baking mixed, and the sulfuric acid amount of adding is 0.8 times of the required theoretical amount of the lucky complete reaction of iron, magnesium, nickel, aluminium and sulfuric acid in the raw ore, 350 ℃ of maturing temperatures, constant temperature time 2h.The tail gas sulfuric acid absorption that roasting produces.The acid leaching liquor stripping of roasting gained grog, 70 ℃ of stripping temperature, dissolution time 1h.Stripping finishes after-filtration, the gained filter residue is SILICA FUME, the dissolution fluid of roasting grog sinks iron, heavy aluminium, 90 ℃ of temperature of reaction, stir, with solid sodium carbonate regulator solution pH value, make the pH value of solution value maintain 1.0～2.0, after concentration of iron reaches 1g/L in the solution, regulator solution pH value to 4.6, filter, filtrate is 15%～20% sodium sulfide solution adjustment pH value with massfraction, and filtrate pH value reaches filtration in 6.5 o'clock, obtain the nickelous sulfide product, filtrate behind the heavy nickel is continued with solid sodium carbonate regulator solution pH value to 8.5～9.0, and adds hydrogen peroxide, carries out deep impurity-removing.Add solid sodium carbonate in the filtrate after purify, stir, 60 ℃ of temperature of reaction, adding the yellow soda ash amount is 1.1 times that magnesium forms the required theoretical value of magnesiumcarbonate, filters and obtains magnesiumcarbonate product, filtrate evaporative crystallization reclaim(ed) sulfuric acid sodium.
Claims (1)
1. a method of utilizing red soil nickel ore is characterized in that comprising the steps:
(1) ore grinding: with red soil nickel ore fragmentation, levigate to 80 μ m;
(2) magnetic separation: levigate red soil nickel ore breaks into slurry and carries out wet magnetic separation;
(3) vitriol oil leaches: add massfraction in the ore pulp after the magnetic separation and be 98% vitriol oil agitation leach;
(4) roasting: it is baking mixed leach to filter the filter residue of back gained and massfraction and be 98% the vitriol oil, the sulfuric acid amount that adds is 0.6～0.8 times of the required theoretical amount of the lucky complete reaction of iron, magnesium, nickel, aluminium and sulfuric acid in the raw ore, 300 ℃～450 ℃ of maturing temperatures, constant temperature time 1h～2h;
(5) grog stripping: roasting gained grog goes out the filtrate filtered stripping with acidleach, filters to obtain filtrate and SILICA FUME;
(6) heavy iron, heavy aluminium: filtrate makes the pH value of solution value maintain 1.0～2.0 with solid sodium carbonate regulator solution pH value, and after concentration of iron reached 1g/L in the solution, regulator solution pH value to 4.6 was filtered, and obtains iron, aluminium slag and filtrate;
(7) heavy nickel: the filtrate behind heavy iron, the heavy aluminium is 15%～20% sodium sulfide solution adjustment pH value with massfraction, and filtrate pH value reaches filtration in 6.5 o'clock, obtains the nickelous sulfide product;
(8) purify: the filtrate behind the heavy nickel purifies, and continues with solid sodium carbonate regulator solution pH value to 8.5～9.0, and adds hydrogen peroxide, to the solution deep removal of impurities;
(9) heavy magnesium: add solid sodium carbonate in the filtrate after purify, make magnesium precipitate, 20 ℃～90 ℃ of temperature of reaction, adding the yellow soda ash amount is 1.1 times that magnesium forms the required theoretical value of magnesiumcarbonate, filters and obtains the magnesiumcarbonate product;
(10) reclaim(ed) sulfuric acid sodium: the filtrate evaporative crystallization behind the heavy magnesium obtains sodium sulfate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310099640.8A CN103205568B (en) | 2013-03-27 | 2013-03-27 | A kind of method utilizing lateritic nickel ore |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310099640.8A CN103205568B (en) | 2013-03-27 | 2013-03-27 | A kind of method utilizing lateritic nickel ore |
Publications (2)
| Publication Number | Publication Date |
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| CN103205568A true CN103205568A (en) | 2013-07-17 |
| CN103205568B CN103205568B (en) | 2016-10-05 |
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|---|---|---|---|
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113401951A (en) * | 2021-04-25 | 2021-09-17 | 荆门市格林美新材料有限公司 | Preparation method of basic nickel carbonate |
| CN115557510A (en) * | 2022-09-16 | 2023-01-03 | 绩溪县黄山石英有限公司 | Production method of silicon micropowder for semiconductor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101338376A (en) * | 2008-08-15 | 2009-01-07 | 中南大学 | Process for comprehensively developing and utilizing nickel, cobalt, iron and magnesium from laterite-nickel ore |
| CN102115816A (en) * | 2011-01-07 | 2011-07-06 | 东北大学 | Comprehensive utilization method for laterite-nickel ore |
-
2013
- 2013-03-27 CN CN201310099640.8A patent/CN103205568B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101338376A (en) * | 2008-08-15 | 2009-01-07 | 中南大学 | Process for comprehensively developing and utilizing nickel, cobalt, iron and magnesium from laterite-nickel ore |
| CN102115816A (en) * | 2011-01-07 | 2011-07-06 | 东北大学 | Comprehensive utilization method for laterite-nickel ore |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113401951A (en) * | 2021-04-25 | 2021-09-17 | 荆门市格林美新材料有限公司 | Preparation method of basic nickel carbonate |
| CN115557510A (en) * | 2022-09-16 | 2023-01-03 | 绩溪县黄山石英有限公司 | Production method of silicon micropowder for semiconductor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103205568B (en) | 2016-10-05 |
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| C14 | Grant of patent or utility model | ||
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