CN103468973B - A kind of method of carrying nickel from nickeliferous ferrophosphorus - Google Patents
A kind of method of carrying nickel from nickeliferous ferrophosphorus Download PDFInfo
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- CN103468973B CN103468973B CN201310449099.9A CN201310449099A CN103468973B CN 103468973 B CN103468973 B CN 103468973B CN 201310449099 A CN201310449099 A CN 201310449099A CN 103468973 B CN103468973 B CN 103468973B
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- ferrophosphorus
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- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims abstract description 76
- 229910052759 nickel Inorganic materials 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 15
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 12
- WWNBZGLDODTKEM-UHFFFAOYSA-N sulfanylidenenickel Chemical compound [Ni]=S WWNBZGLDODTKEM-UHFFFAOYSA-N 0.000 claims abstract description 12
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000011574 phosphorus Substances 0.000 claims abstract description 9
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 9
- 239000000706 filtrate Substances 0.000 claims abstract description 7
- 239000011734 sodium Substances 0.000 claims abstract description 7
- 235000011114 ammonium hydroxide Nutrition 0.000 claims abstract description 6
- 238000001556 precipitation Methods 0.000 claims abstract description 6
- KMQAPZBMEMMKSS-UHFFFAOYSA-K calcium;magnesium;phosphate Chemical compound [Mg+2].[Ca+2].[O-]P([O-])([O-])=O KMQAPZBMEMMKSS-UHFFFAOYSA-K 0.000 claims abstract description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 3
- 150000002506 iron compounds Chemical class 0.000 claims abstract description 3
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 3
- 239000007787 solid Substances 0.000 claims description 8
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 239000002244 precipitate Substances 0.000 claims description 4
- 238000006386 neutralization reaction Methods 0.000 claims description 3
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 claims description 2
- 238000005119 centrifugation Methods 0.000 claims description 2
- 229910001447 ferric ion Inorganic materials 0.000 claims description 2
- 229910001448 ferrous ion Inorganic materials 0.000 claims description 2
- 235000019580 granularity Nutrition 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 229960004887 ferric hydroxide Drugs 0.000 claims 1
- IEECXTSVVFWGSE-UHFFFAOYSA-M iron(3+);oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Fe+3] IEECXTSVVFWGSE-UHFFFAOYSA-M 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 11
- 239000000047 product Substances 0.000 abstract description 4
- 239000006227 byproduct Substances 0.000 abstract description 3
- 235000014413 iron hydroxide Nutrition 0.000 abstract description 2
- NCNCGGDMXMBVIA-UHFFFAOYSA-L iron(ii) hydroxide Chemical compound [OH-].[OH-].[Fe+2] NCNCGGDMXMBVIA-UHFFFAOYSA-L 0.000 abstract description 2
- 235000021110 pickles Nutrition 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract description 2
- 238000004090 dissolution Methods 0.000 abstract 1
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 abstract 1
- 229910000360 iron(III) sulfate Inorganic materials 0.000 abstract 1
- 238000011017 operating method Methods 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 32
- 229910052742 iron Inorganic materials 0.000 description 15
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 8
- 239000000126 substance Substances 0.000 description 6
- 230000003647 oxidation Effects 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- DGEZNRSVGBDHLK-UHFFFAOYSA-N [1,10]phenanthroline Chemical compound C1=CN=C2C3=NC=CC=C3C=CC2=C1 DGEZNRSVGBDHLK-UHFFFAOYSA-N 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 235000011149 sulphuric acid Nutrition 0.000 description 4
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 235000010755 mineral Nutrition 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 239000005955 Ferric phosphate Substances 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910052729 chemical element Inorganic materials 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 description 1
- 229910000397 disodium phosphate Inorganic materials 0.000 description 1
- 235000019800 disodium phosphate Nutrition 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000000921 elemental analysis Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229940032958 ferric phosphate Drugs 0.000 description 1
- 230000005307 ferromagnetism Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000003837 high-temperature calcination Methods 0.000 description 1
- -1 iron hydroxide Chemical compound 0.000 description 1
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 description 1
- 229910000399 iron(III) phosphate Inorganic materials 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- VIAPNRBXEJNZKV-UHFFFAOYSA-N nickel silicic acid Chemical compound [Ni].[Si](O)(O)(O)O VIAPNRBXEJNZKV-UHFFFAOYSA-N 0.000 description 1
- 238000006396 nitration reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- DPTATFGPDCLUTF-UHFFFAOYSA-N phosphanylidyneiron Chemical compound [Fe]#P DPTATFGPDCLUTF-UHFFFAOYSA-N 0.000 description 1
- 239000002686 phosphate fertilizer Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- OBSZRRSYVTXPNB-UHFFFAOYSA-N tetraphosphorus Chemical compound P12P3P1P32 OBSZRRSYVTXPNB-UHFFFAOYSA-N 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention provides a kind of method of carrying nickel from nickeliferous ferrophosphorus, its operating procedure comprises as follows: nickeliferous phosphorus ore is crushed to below 200 orders with pulverizer, with the nickeliferous ferrophosphorus of sulfuric acid dissolution, regulate pickle liquor pH value with ammoniacal liquor again, separate out iron hydroxide or ferric sulfate completely after, filter to isolate iron compound, filtrate adds vulcanized sodium to form nickel sulphide precipitation, filters and obtain nickel sulfide product. The present invention can utilize calcium magnesium phosphate produce in the nickeliferous ferrophosphorus of by-product, have that cost is low, technique simple, the feature of good product quality, for the utilization of trade waste ferrophosphorus provides a Processes For Effective Conversion.
Description
Technical field
The invention belongs to chemical field, is a kind of side that nickel element in the nickeliferous ferrophosphorus of discarded object is carried out to effective utilizationMethod.
Background technology
Ferrophosphorus be a kind of in the hot method process of phosphorus ore the accessory substance that contains iron and phosphorus of output, as yellow phosphorus, calcium magnesiumThe by-product of phosphate fertilizer. Common ferrophosphorus is generally not nickeliferous, but when doing ferrophosphorus that flux produces by-product when calcium magnesium phosphate with serpentine justCan contain a certain amount of nickel. At this time raw material phosphor ore, flux serpentine, fuel coke, at 1350-1450 DEG C of molten blast furnace,Again through shrend, quenching, dry, grind and obtain calcium magnesium phosphate product. Meanwhile, the silicic acid nickel containing in serpentine, quilt in blast furnaceBe reduced to elemental nickel, and deposit with fe and phosphorus formation ferrophosphorus, finally become the nickeliferous ferrophosphorus of accessory substance and (be called for short nickel phosphorusIron).
Nickel ferrophosphorus contains higher nickel, and its nickel content is even also high than the nickel content of the lateritic nickel ore of one of nickel minerals, thereforeIn fact nickel ferrophosphorus can be used as a kind of well nickel-containing mineral and is used. And, in nickel ferrophosphorus, also contain a large amount of iron andPhosphorus in nickel, can also reclaim phosphorus and iron in extraction nickel ferrophosphorus.
Ferrophosphorus is a kind of silver gray solid with metallic luster (nickeliferous ferrophosphorus is partially yellow), and harder and inclined to one side fragility, has oneFixed ferromagnetism. By nickel ferrophosphorus is carried out to analysis of chemical elements, what result showed its content maximum is ferro element, account for 55%～75%, be secondly P elements, account for 10%～20%, the nickel content 1%～3% of nickeliferous ferrophosphorus, in detail in table 1.
Table 1(nickel) results of elemental analyses of ferrophosphorus
Although contain a large amount of iron and P elements in ferrophosphorus, its chemical property is extremely stable, unlike iron at airMiddle meeting eremacausis, also unlike phosphorus, in air, oxidation immediately emits white cigarette even to burn, and ferrophosphorus can be grown in airPhase stable existence. The phosphorus and the iron that in ferrophosphorus, do not have simple substance state are described. (nickel) ferrophosphorus is carried out to X-ray diffraction analysis, result tableThat in bright nickel ferrophosphorus, exist is Fe2P、Fe3Two kinds of forms of P.
For the utilization of common ferrophosphorus, general employing is allocated soda ash into and is mixed rear high-temperature calcination with ferrophosphorus powder, then uses water loggingGet, concentrating filter liquor, crystallization, the dry tertiary sodium phosphate product that makes, filter residue makes iron oxide through washing, oven dry. Or adopt firstFerrophosphorus adds sulfuric acid and phosphoric acid after pulverizing, and in 95 DEG C of water-baths, adds thermal agitation. and extremely most of ferrophosphorus powder is dissolved in nitration mixture, stopsOnly reaction. remove by filter insoluble matter and obtain filtrate, add ammoniacal liquor or sodium hydrogen phosphate etc. toward filtrate, finally separate out ferric phosphate crystalline substanceBody.
And utilization to nickeliferous ferrophosphorus has employing first nickel ferrophosphorus to be oxidized in open hearth to blowing, makes the element such as iron, phosphorusOxidized slag making, reaches enrichment because nickel is not oxidizable, more nickeliferous its of alloy that open hearth blowing is produced is placed in electric arc and protectsIn, be blown into air east iron phosphorus wherein is further oxidized, make to be cast into positive plate with swage after nickel enrichment last electrorefiningFor pure cathode nickel plate.
Summary of the invention
The present invention will solve and in original nickeliferous ferrophosphorus, carry that the flow process of nickel is tediously long, equipment huge many, energy consumption is high, investment is larger lacksPoint, proposes a kind of chemistry leaching and puies forward the technique of nickel, and the method cost is low, make full use of waste resource and accessory substance, technique is simpleFeature.
In order to realize above-mentioned order ground, the technical scheme that the present invention takes is: a kind of method of carrying nickel from nickeliferous ferrophosphorus, bagDraw together following steps:
(1) pulverize: nickeliferous bulk ferrophosphorus is crushed to 200 object granularities with pulverizer.
(2) acidleach: at solid-to-liquid ratio 1:4～1:8, sulfuric acid concentration 20%～40%, under the condition that reaction temperature is 80～105 DEG C,Acidleach 15～20 hours, constantly blasts air and makes the ferrous ion dissolving in be oxidized to ferric ion in acidleach process.
(3) neutralization: pickle liquor adds ammoniacal liquor, adjusting solution pH value is 5.5～6.5, separates out the iron such as iron hydroxide, ferric sulfateCompound precipitation.
(4) filter: after iron compound precipitation is complete, filter neutralizer, separation is slagged tap, and obtains nonferrous filtrate.
(5) separate out nickel sulfide: filtrate adds vulcanized sodium, separate out immediately nickel sulphide precipitation.
(6) filter: centrifugation, obtains nickel sulphide solids.
Embodiment 1
With the coarse crushing of jaw crusher bulk nickel ferrophosphorus, be more further crushed to 1～2mm particle diameter with disc mill, use ballGrinding machine is levigate to crossing 200 orders again, gets above-mentioned nickel ferrophosphorus raw material 400g, with 4kg(solid-to-liquid ratio 1:10) 40% H2SO4 80 DEG C, stirThe speed of mixing is to react 12h under the condition of 900r/min, constantly blasts air oxidation in course of reaction, after reaction finishes, carries outFilter, is dark solution after solution filter, adds hydrogen peroxide transparent and identify without ferrous iron with phenanthroline to solution, and leachate addsAmmonia neutralization is to pH value of solution ≈ 6.0, at this moment this Ex-all of iron-based, the Na that the solution after deironing adds2S solution, separates out NiS blackPrecipitation, filters and obtains nickel sulphide solids.
Embodiment 2
Getting 200 order nickel ferrophosphorus raw material 100g, with 0.8kg(solid-to-liquid ratio 1:8) 30% H2SO4 is 95 DEG C, mixing speedUnder condition for 900r/min, react 15h, in course of reaction, constantly blast air oxidation, after reaction finishes, filter solutionAfter filtering, be dark solution, identify without (if there have divalence iron rule to add hydrogen peroxide to be transparent to solution) after ferrous iron with phenanthroline,Leachate adds ammoniacal liquor and is neutralized to pH value of solution ≈ 6.0, at this moment this Ex-all of iron-based, the Na that the solution after deironing adds2S solution, analysesGo out NiS black precipitate, filter and obtain nickel sulphide solids.
Embodiment 3
Getting 200 order nickel ferrophosphorus raw material 500g, with 3kg(solid-to-liquid ratio 1:6) 20% H2SO4 at 105 DEG C, mixing speed isUnder the condition of 900r/min, react 20h, in course of reaction, constantly blast air oxidation, after reaction finishes, filter solution mistakeAfter filter, be dark solution, identify without (if having divalence iron rule to add hydrogen peroxide) after ferrous iron with phenanthroline, leachate adds ammoniacal liquorBe neutralized to pH value of solution 6～7, at this moment this Ex-all of iron-based, the Na that the solution after deironing adds2S solution, separates out NiS black precipitate,Filter and obtain nickel sulphide solids.
Embodiment 4
Getting 200 order nickel ferrophosphorus raw material 150g, with 1.2kg(solid-to-liquid ratio 1:8) 30% H2SO4 is 100 DEG C, mixing speedUnder condition for 900r/min, react 20h, in course of reaction, constantly blast air oxidation, after reaction finishes, filter solutionAfter filtering, be dark solution, identify without (if there have divalence iron rule to add hydrogen peroxide to be transparent to solution) after ferrous iron with phenanthroline,Leachate adds ammoniacal liquor and is neutralized to pH value of solution ≈ 6.0, at this moment this Ex-all of iron-based, the Na that the solution after deironing adds2S solution, analysesGo out NiS black precipitate, filter and obtain nickel sulphide solids.
Claims (2)
1. a method of carrying nickel from nickeliferous ferrophosphorus, is characterized in that comprising the following steps:
(1) pulverize: nickeliferous bulk ferrophosphorus is crushed to 200 object granularities with pulverizer;
(2) acidleach: be 1:4～1:8 at the mass ratio of solid and liquid, sulfuric acid mass percent concentration is 10%～40%, reactionTemperature is that under the condition of 80～105 DEG C, acidleach 15～20 hours, constantly blasts air and make the ferrous ion dissolving in acidleach processBe oxidized to ferric ion;
(3) neutralization: leachate adds ammoniacal liquor, adjusting solution pH value is 5.5～6.5, separates out ferric hydroxide precipitate;
(4) filter: after iron compound precipitation is complete, filter neutralizer, separation is slagged tap, and obtains nonferrous filtrate;
(5) separate out nickel sulfide: filtrate adds vulcanized sodium, separate out immediately nickel sulphide precipitation;
(6) filter: centrifugation, obtains nickel sulphide solids.
2. a kind of method of carrying nickel from nickeliferous ferrophosphorus in claim 1, is characterized in that adopting the phosphorus of calcium magnesium phosphate by-productIron, it contains nickel mass percent is 1%～4%, containing ferro element mass percent is 55%～75%, contains phosphorus mass percentBe 10%～20%.
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| CN104402064A (en) * | 2014-11-14 | 2015-03-11 | 周骏宏 | Method for preparing ferrous sulphate from iron-containing waste |
| CN107792840B (en) * | 2017-10-27 | 2020-10-27 | 昆明理工大学 | Method for preparing iron phosphate by using byproduct ferrophosphorus in industrial yellow phosphorus production |
| CN107986252B (en) * | 2017-10-27 | 2021-03-02 | 昆明理工大学 | Method for preparing iron phosphate by using by-product ferrophosphorus |
| CN113667825B (en) * | 2021-07-20 | 2022-11-15 | 广东邦普循环科技有限公司 | Ferronickel wet processing method and application thereof |
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| CN101225470B (en) * | 2008-01-31 | 2010-06-09 | 曹国华 | Method for extracting nickel and cobalt from lateritic nickel by hydrochloric acid process |
| CN101298638B (en) * | 2008-06-27 | 2010-06-02 | 中南大学 | Method for collecting nickel and cobalt from laterite-nickel ore lixivium |
| JP5446226B2 (en) * | 2008-09-19 | 2014-03-19 | 住友金属鉱山株式会社 | Method for hydrometallizing nickel oxide ore |
| CN101418379B (en) * | 2008-12-11 | 2010-09-01 | 昆明晶石矿冶有限公司 | Method for extracting nickel and cobalt by enclosed leaching nickel oxide mine |
| CN101575676A (en) * | 2009-06-18 | 2009-11-11 | 中南大学 | Method for removing iron and enriching nickel cobalt through precipitation of laterite type nickel ores |
| CN102876887B (en) * | 2012-09-28 | 2014-11-05 | 广西银亿科技矿冶有限公司 | Method for comprehensively recycling metal from laterite-nickel ore leaching agent |
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