CN103205569A - Method for treating nickel laterite ores - Google Patents
Method for treating nickel laterite ores Download PDFInfo
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- CN103205569A CN103205569A CN2013100996588A CN201310099658A CN103205569A CN 103205569 A CN103205569 A CN 103205569A CN 2013100996588 A CN2013100996588 A CN 2013100996588A CN 201310099658 A CN201310099658 A CN 201310099658A CN 103205569 A CN103205569 A CN 103205569A
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- nickel
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- filtrate
- magnesium
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- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims abstract description 89
- 229910052759 nickel Inorganic materials 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 14
- 229910001710 laterite Inorganic materials 0.000 title abstract 5
- 239000011504 laterite Substances 0.000 title abstract 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 43
- 229910052742 iron Inorganic materials 0.000 claims abstract description 19
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 17
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 15
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 15
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims abstract description 14
- 235000011130 ammonium sulphate Nutrition 0.000 claims abstract description 14
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 13
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000011777 magnesium Substances 0.000 claims abstract description 12
- 239000007787 solid Substances 0.000 claims abstract description 12
- 238000001914 filtration Methods 0.000 claims abstract description 11
- 238000007885 magnetic separation Methods 0.000 claims abstract description 11
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 9
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 8
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims abstract description 8
- 239000001095 magnesium carbonate Substances 0.000 claims abstract description 8
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims abstract description 8
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims abstract description 4
- 238000002425 crystallisation Methods 0.000 claims abstract description 4
- 230000008025 crystallization Effects 0.000 claims abstract description 4
- 229910052938 sodium sulfate Inorganic materials 0.000 claims abstract description 4
- 229910052979 sodium sulfide Inorganic materials 0.000 claims abstract description 4
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 235000011152 sodium sulphate Nutrition 0.000 claims abstract description 4
- 230000001105 regulatory effect Effects 0.000 claims abstract 4
- 238000000227 grinding Methods 0.000 claims abstract 2
- 239000000706 filtrate Substances 0.000 claims description 24
- 239000002689 soil Substances 0.000 claims description 21
- 238000006243 chemical reaction Methods 0.000 claims description 18
- 239000004411 aluminium Substances 0.000 claims description 14
- 229960001708 magnesium carbonate Drugs 0.000 claims description 7
- 235000014380 magnesium carbonate Nutrition 0.000 claims description 7
- 239000000047 product Substances 0.000 claims description 7
- 238000004090 dissolution Methods 0.000 claims description 6
- 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
- 229910021487 silica fume Inorganic materials 0.000 claims description 4
- 238000013019 agitation Methods 0.000 claims description 3
- 229910000329 aluminium sulfate Inorganic materials 0.000 claims description 3
- 235000011128 aluminium sulphate Nutrition 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 229910000358 iron sulfate Inorganic materials 0.000 claims description 3
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims description 3
- 229910000363 nickel(II) sulfate Inorganic materials 0.000 claims description 3
- 230000035484 reaction time Effects 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000013467 fragmentation Methods 0.000 claims 1
- 238000006062 fragmentation reaction Methods 0.000 claims 1
- 239000002244 precipitate Substances 0.000 claims 1
- PANBYUAFMMOFOV-UHFFFAOYSA-N sodium;sulfuric acid Chemical compound [Na].OS(O)(=O)=O PANBYUAFMMOFOV-UHFFFAOYSA-N 0.000 claims 1
- 238000003756 stirring Methods 0.000 abstract description 5
- WWNBZGLDODTKEM-UHFFFAOYSA-N sulfanylidenenickel Chemical compound [Ni]=S WWNBZGLDODTKEM-UHFFFAOYSA-N 0.000 abstract description 4
- 238000001354 calcination Methods 0.000 abstract description 3
- 239000001099 ammonium carbonate Substances 0.000 abstract 3
- 235000012501 ammonium carbonate Nutrition 0.000 abstract 3
- 238000002386 leaching Methods 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 238000010009 beating Methods 0.000 abstract 1
- 229910052739 hydrogen Inorganic materials 0.000 abstract 1
- 239000001257 hydrogen Substances 0.000 abstract 1
- 238000002156 mixing Methods 0.000 abstract 1
- 238000000746 purification Methods 0.000 abstract 1
- 239000011863 silicon-based powder Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- BIGPRXCJEDHCLP-UHFFFAOYSA-N ammonium bisulfate Chemical compound [NH4+].OS([O-])(=O)=O BIGPRXCJEDHCLP-UHFFFAOYSA-N 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000003921 oil Substances 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
- 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
- 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
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
Images
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
Abstract
A method for treating nickel laterite ores mainly includes steps of crushing and finely grinding the nickel laterite ores until sizes of the nickel laterite ores are smaller than 80 micrometers, beating the ground nickel laterite ores to obtain pulp, performing wet magnetic separation for the pulp, adding concentrated sulfuric acid into the magnetically separated ore pulp, stirring, leaching and filtering the ore pulp to obtain filter residues, mixing the filter residues with ammonium sulfate to obtain a mixture, calcining the mixture to obtain a clinker, dissolving out the clinker by filter liquor which is obtained after acid leaching and filtering so as to obtain mixed liquor, filtering the mixed liquor to obtain another filter liquor and micro-silicon powder; regulating a pH (potential of hydrogen) value of the other filter liquor by solid ammonium carbonate, settling iron and aluminum, regulating a pH value of filtered solution by sodium sulfide solution with the mass fraction ranging from 15% to 20%, enabling nickel to form nickel sulfide to be settled, regulating the pH value of the solution by solid ammonium carbonate after the nickel is settled, adding hydrogen peroxide into the solution, and performing advanced purification for the solution; and adding solid ammonium carbonate into purified solution, settling magnesium, filtering the solution to obtain a magnesium carbonate product, and performing evaporative crystallization for the filter liquor after the magnesium is settled so as to obtain sodium sulfate and ammonium 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 serious pollution and 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 that cleans 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 handling 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 ammonium sulfate are baking mixed, the volume of ammonium sulfate that adds is 1.2～1.8 times of the required theoretical amount of the lucky complete reaction of iron, magnesium, nickel, aluminium and ammonium sulfate in the filter residue, 350 ℃～500 ℃ 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, and 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 carbonic acid ammonium 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 carbonic acid ammonium regulator solution pH value to 8.5～9.0, and add hydrogen peroxide, carry out deep impurity-removing.Add the solid carbonic acid ammonium in the filtrate after purify, stir, 60 ℃～90 ℃ of temperature of reaction, adding the volatile salt amount is 2.2～2.8 times that magnesium forms the required theoretical value of magnesiumcarbonate, filters and obtains magnesiumcarbonate product, filtrate evaporative crystallization reclaim(ed) sulfuric acid ammonium and sodium sulfate.
Description of drawings
Accompanying drawing is a kind of process flow sheet of handling 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.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 0.4 times of the required theoretical amount of nickel, iron, magnesium, aluminium and the lucky complete reaction of sulfuric acid, reaction times 15h, react the after-filtration that finishes, filtrate is used for stripping calcining process gained grog, filter residue and ammonium sulfate are baking mixed, the volume of ammonium sulfate that adds is 1.8 times of the required theoretical amount of the lucky complete reaction of iron, magnesium, nickel, aluminium and ammonium sulfate in the filter residue, 450 ℃ of maturing temperatures, constant temperature time 2h.The tail gas sulfuric acid absorption that roasting produces.Roasting gained grog goes out the filtrate filtered stripping with acidleach, 80 ℃ of stripping temperature, dissolution time 0.5h.Stripping finishes after-filtration, and the gained filter residue is SILICA FUME.The dissolution fluid of roasting grog sinks iron, heavy aluminium, 95 ℃ of temperature of reaction, stirring reaction, with solid carbonic acid ammonium regulator solution pH value, make the pH value of solution value maintain 1.5～2.0, 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, filtrate is 15%～20% sodium sulfide solution adjustment pH value with massfraction, filtrate pH value reaches filtration in 6.5 o'clock, obtains the nickelous sulfide product, and the filtrate behind the heavy nickel is carried out deep purifying: continue with solid carbonic acid ammonium regulator solution pH value to 8.5～9.0, and the adding hydrogen peroxide, carry out deep impurity-removing.Add the solid carbonic acid ammonium in the filtrate after purify, stir, 90 ℃ of temperature of reaction, adding the volatile salt amount is 2.2～2.8 times that magnesium forms the required theoretical value of magnesiumcarbonate, filters and obtains magnesiumcarbonate product, filtrate evaporative crystallization reclaim(ed) sulfuric acid ammonium and sodium sulfate.
Claims (1)
1. a method of handling 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, and the water yield of adding and the mass ratio in ore deposit are 5:2～7:2;
(3) vitriol oil leaches: add massfraction in the ore pulp after the magnetic separation and be 98% vitriol oil agitation leach, 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;
(4) roasting: it is baking mixed to leach the filter residue and the ammonium sulfate that filter the back gained, the volume of ammonium sulfate that adds is 1.2～1.8 times of the required theoretical amount of the lucky complete reaction of iron, magnesium, nickel, aluminium and ammonium sulfate in the filter residue, 350 ℃～500 ℃ of maturing temperatures, constant temperature time 1h～2h;
(5) grog stripping: roasting gained grog goes out the stripping of gained filtrate with acidleach, 60 ℃～80 ℃ of stripping temperature, and dissolution time 0.5h～1.5h filters, and obtains filtrate and SILICA FUME;
(6) heavy iron, heavy aluminium: the dissolution fluid of ammonium sulfate roasting grog is regulated the pH value with the solid carbonic acid ammonium, makes the pH value of solution value maintain 1.0～2.0,85 ℃～100 ℃ of temperature of reaction, 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;
(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 carbonic acid ammonium regulator solution pH value to 8.5～9.0, and adds hydrogen peroxide, and solution is carried out deep impurity-removing;
(9) heavy magnesium: add the solid carbonic acid ammonium in the filtrate after purify, make magnesium precipitate, 60 ℃～90 ℃ of temperature of reaction, adding the volatile salt amount is 2.2～2.8 times that magnesium forms the required theoretical value of magnesiumcarbonate, filters and obtains the magnesiumcarbonate product;
(10) reclaim(ed) sulfuric acid sodium and ammonium sulfate: the filtrate evaporative crystallization behind the heavy magnesium obtains sodium sulfate and ammonium sulfate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310099658.8A CN103205569B (en) | 2013-03-27 | 2013-03-27 | A kind of method processing lateritic nickel ore |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310099658.8A CN103205569B (en) | 2013-03-27 | 2013-03-27 | A kind of method processing lateritic nickel ore |
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| Publication Number | Publication Date |
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| CN103205569A true CN103205569A (en) | 2013-07-17 |
| CN103205569B CN103205569B (en) | 2016-09-07 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109750168A (en) * | 2019-03-20 | 2019-05-14 | 中国恩菲工程技术有限公司 | The method and device of Selectively leaching scandium, nickel and cobalt element from laterite metallurgical slag |
| CN110331283A (en) * | 2019-08-19 | 2019-10-15 | 中国恩菲工程技术有限公司 | The processing method of lateritic nickel ore acid leaching residue |
| CN117107071A (en) * | 2023-10-19 | 2023-11-24 | 中国恩菲工程技术有限公司 | Method for treating nickel-cobalt-containing material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3140380A1 (en) * | 1981-10-10 | 1983-04-28 | Gebrüder Sulzer AG, 8401 Winterthur | Process for producing nickel, highly pure magnesium oxide and cement |
| CN102115816A (en) * | 2011-01-07 | 2011-07-06 | 东北大学 | Comprehensive utilization method for laterite-nickel ore |
| CN102321812A (en) * | 2011-09-01 | 2012-01-18 | 东北大学 | Method for comprehensive utilization of laterite nickel ore |
-
2013
- 2013-03-27 CN CN201310099658.8A patent/CN103205569B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3140380A1 (en) * | 1981-10-10 | 1983-04-28 | Gebrüder Sulzer AG, 8401 Winterthur | Process for producing nickel, highly pure magnesium oxide and cement |
| CN102115816A (en) * | 2011-01-07 | 2011-07-06 | 东北大学 | Comprehensive utilization method for laterite-nickel ore |
| CN102321812A (en) * | 2011-09-01 | 2012-01-18 | 东北大学 | Method for comprehensive utilization of laterite nickel ore |
Non-Patent Citations (1)
| Title |
|---|
| 张超: "红土镍矿的选冶提取工艺研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109750168A (en) * | 2019-03-20 | 2019-05-14 | 中国恩菲工程技术有限公司 | The method and device of Selectively leaching scandium, nickel and cobalt element from laterite metallurgical slag |
| CN110331283A (en) * | 2019-08-19 | 2019-10-15 | 中国恩菲工程技术有限公司 | The processing method of lateritic nickel ore acid leaching residue |
| CN110331283B (en) * | 2019-08-19 | 2021-08-31 | 中国恩菲工程技术有限公司 | Method for treating acid leaching residues of laterite-nickel ore |
| CN117107071A (en) * | 2023-10-19 | 2023-11-24 | 中国恩菲工程技术有限公司 | Method for treating nickel-cobalt-containing material |
| CN117107071B (en) * | 2023-10-19 | 2024-02-06 | 中国恩菲工程技术有限公司 | Method for treating nickel-cobalt-containing material |
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| CN103205569B (en) | 2016-09-07 |
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