CN103173623B - Method for recovering nickel and cobalt from multi-metal acidic water - Google Patents
Method for recovering nickel and cobalt from multi-metal acidic water Download PDFInfo
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- CN103173623B CN103173623B CN201310063510.9A CN201310063510A CN103173623B CN 103173623 B CN103173623 B CN 103173623B CN 201310063510 A CN201310063510 A CN 201310063510A CN 103173623 B CN103173623 B CN 103173623B
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Abstract
The invention discloses a method for recovering nickel and cobalt from multi-metal acidic water. The method comprises the following steps of: a, enrichment: based on acidic wastewater with content of nickel and cobalt not less than 3.5mg/L as a raw material, filtering, entering into an ion exchanger for exchange reaction, and after ion exchange circulation, generating a nickel and cobalt enriching liquid with content of nickel and cobalt higher than 300mg/L; b, pretreatment: adding hydrogen peroxide and calcium carbonate powder into the enriching liquid to remove iron and aluminum ions and the like; and c, vulcanization: adding sodium carbonate and vulcanizing substances to the pretreated enriching liquid, stirring and entering into a settling pond, adding a flocculant, and concentrating and pressing and processing to produce nickel and cobalt carbonate and nickel and cobalt sulfide products. Through a reasonable process design, nickel and cobalt are extracted from multi-metal acidic water by means of normal chemicals and physical methods, so that the environmental pollution is reduced, and rare metal resources such as nickel and cobalt and the like can be effectively recovered. The process parameter in the production process is easy to control, and new environmental pollution is not produced.
Description
Technical field
The invention belongs to hydrometallurgy field, be specifically related to a kind of method that reclaims nickel cobalt from many metals sour water.
Background technology
In non-ferrous metal copper mine, association has the multiple rare precious metals such as gold and silver, molybdenum, nickel, cobalt, exploit in the open in the process of copper mine, produce a large amount of barren rocks and enter waste rock pile, barren rock is under the effect of rainfall, air and mould, produce and contain in a large number the acid waste water of the metals such as iron, copper, gold and silver, molybdenum, nickel, cobalt, find by analysis to contain in this acid waste water the metal ion such as nickel, cobalt of concentration in 0.004 grams per liter left and right.At present, conventionally adopt dump leaching-extraction-electrodeposition process and chemicure integrated technology to reclaim the higher copper of concentration in this acid waste water, and in this acid waste water the metal such as the low-down nickel of content, cobalt, traditional technology cannot reclaim.
Summary of the invention
The object of the invention is to extract nickel, the cobalt metal of low levels from many metal acid wastewater.
Technical scheme of the present invention is: a kind of method that reclaims nickel, cobalt metal from many metal acid wastewater, comprises following processing step:
A, process of enriching step: taking the acid waste water that contains iron, aluminium, copper, nickel, cobalt metal as raw material, in its sour water, nickel, cobalt contents are not less than 3.5 mg/litre, acid waste water is forced into 0.01-0.20 megapascal (MPa) by pump and enters acidic water filter, remove suspended particle impurity wherein, then carry out ion exchange reaction along compressing into into the ion-exchanger that resin is housed; Nickel, cobalt, iron, aluminum ion in resin absorption sour water, the 25-50 that sour water flow is controlled at resin volume doubly/hour, in the time that the water yield of the ion-exchanger by resin is housed reaches 80-120 times of resin volume, stop the injection of acid waste water; First water takes off and washes resin, then regenerate with the sulfuric acid of mass percent concentration 6-16%, under the condition that is 0.5-1 in pH value, regenerate metallic nickel, cobalt contents reaches more than 300 mg/litre metallic nickel, cobalt pregnant solution, rear water rinses ion exchange resin, make the interior pH value of ion-exchanger that resin is housed bring up to 3.0-4.0, recover the ion exchanging function of resin;
B, pretreatment technology step: pregnant solution is passed into deironing, removes reactive aluminum device, simultaneously to deironing, add hydrogen peroxide and Paris white except in reactive aluminum device, pH value is controlled at 3.5-5.5, uniform stirring 0.5-1.5 hour, then enter filtrate after pressure filter press filtration for not containing metal iron, aluminum ions nickel cobalt pregnant solution by pump pressurization; In pressure-filtering process, the ironic hydroxide of metallic iron, aluminum ion and calcium carbonate formation, aluminium hydroxide sediment are through twice press filtration and once flushing;
C, sulfuration process step: the pregnant solution after pretreatment technology step is passed into nickel and cobalt recovery reactor, add the sulfidic material solution of powdered sodium carbonate and mass percent concentration 15-38% to react, uniform stirring 0.5-1.5 hour simultaneously, nickel cobalt mixed slurry enters settling tank again, add the flocculant solution of mass percent concentration 0.05-0.25% simultaneously, flocculant solution consumption is that every liter of enrichment liquid measure is added flocculation agent dry powder 1-5mg, carry out coagulating, run by gravity mixing 5-10 minute, the rear nickel cobalt mixed slurry of mixing enters central feeding formula concentration basin and carries out solid-liquid separation, concentration time is 2-4 hour, the mass percent concentration 5-30% of slurry, sediment is from the output of concentration basin bottom, and carry out press filtration processing, in pressure-filtering process, the sediment of concentration basin further dewaters through pressure filter, and the filter cake of formation is nickelous carbonate cobalt and nickelous sulfide cobalt product, filtrate after press filtration turns back to nickel cobalt concentration basin and continues clarification.
In order to obtain better result of use, the present invention can also implement following technical measures:
1, in process of enriching step, be less than 0.03 megapascal (MPa) along compressing into into the suitable pressure reduction of the ion-exchanger that acidic resins are housed.
2, in process of enriching step, the ion-exchanger of acidic resins is the ion-exchanger of the acid resin of WP-2 positively charged ion, and the acid resin of WP-2 positively charged ion is the silica gel polyamine matrix material that Australian AMMTEC company produces.
3, in pretreatment technology step, canvas press cloth is 500-1500 order, pressure 0.3-0.8 megapascal (MPa), time 1.0-4.0 hour.
4, in sulfuration process step, powdered sodium carbonate consumption is controlled by the pH value in nickel and cobalt recovery reactor, and pH value is controlled as 5.0-5.8.
5, sulfuration process step medium sulphide content matter solution usage is determined by the redox potential value in nickel and cobalt recovery reactor, and oxidation reduction potential control is 0-100 millivolt.
6, in sulfuration process step, canvas press cloth is 500-1500 order, pressure 0.3-0.8 megapascal (MPa), time of filter pressing 1.0-4.0 hour.
7, sulfuration process medium sulphide content matter is one or more combination of Sodium sulfhydrate, sodium sulphite, potassium bisulfide, potassium sulphide.
8, in sulfuration process, flocculation agent is one or more combinations in inorganic flocculating agent, organic floculant, and inorganic flocculating agent comprises Tai-Ace S 150, aluminum chloride, ferric sulfate, iron(ic) chloride, polymerize aluminum chloride, polyaluminium sulfate, poly-ferric chloride, bodied ferric sulfate; Organic floculant comprises alkaline hydrolysis thing, acrylamide, styrene sulfonate, ligninsulfonate, vinylformic acid, the methacrylic acid of polyacrylamide, polyacrylic acid, sodium polyacrylate, calcium polyacrylate (CPA), polyacrylamide.
The present invention is by rational technological design, uses conventional pharmaceutical chemicals and physical method, by the nickel and cobalt extraction in many metal acid wastewater out, reduced environmental pollution, and can efficient recovery nickel, the rare metal resources such as cobalt; In production process, processing parameter is easy to control, and can not produce new environmental pollution.
Embodiment
Embodiment mono-
From many metals sour water, reclaim a method for nickel cobalt, specifically comprise following processing method step:
A, process of enriching step: taking the acid waste water that contains iron, aluminium, copper, nickel, cobalt metal as raw material, in its sour water, nickel, cobalt contents are not less than 3.5 mg/litre, acid waste water is forced into 0.2 megapascal (MPa) by pump and enters acidic water filter, remove suspended particle impurity wherein, then along pressing, pressure reduction is less than 0.03 megapascal (MPa), enters the ion-exchanger that the acid resin of WP-2 positively charged ion is housed, and carries out ion exchange reaction, nickel in resin absorption sour water, cobalt, iron, aluminum ion, sour water flow is controlled at 25 times/hour of resin volume, in the time that the water yield of the ion-exchanger by the acid resin of WP-2 positively charged ion is housed reaches 120 times of resin volume, stop the injection of acid waste water, first water takes off and washes resin, then regenerate with the sulfuric acid of mass percent concentration 6%, under the condition that is 0.8 in pH value, the metallic nickel of regenerating, cobalt contents reaches metallic nickels more than 300 mg/litre, cobalt pregnant solution, rear water rinses ion exchange resin, make the interior pH value of ion-exchanger that the acid resin of WP-2 positively charged ion is housed bring up to 3.0, the ion exchanging function of the acid resin of WP-2 positively charged ion is equipped with in recovery, the acid resin of WP-2 positively charged ion is housed completes an ion-exchange through " absorption-Tuo wash-regenerate-rinse " and circulates, then carry out next one circulation, waste water after ion-exchange enters water technology, qualified discharge,
B, pretreatment technology step: the pregnant solution that process of enriching produces enters deironing, removes reactive aluminum device, simultaneously to deironing, add hydrogen peroxide and Paris white except in reactive aluminum device, pH value is controlled at 3.5, and hydrogen peroxide makes divalence ferrous ion be converted into ferric ion, simultaneously uniform stirring, stir after 0.5 o'clock, enter plate-and-frame filter press by pump pressurization, filter cloth is 1000 orders, pressure 0.3 megapascal (MPa), 1.0 hours time, the filtrate after press filtration is not containing metal iron, aluminum ions nickel cobalt pregnant solution; In pressure-filtering process, ironic hydroxide, aluminium hydroxide sediment that metallic iron, aluminum ion and calcium carbonate form need twice press filtration and once flushing, fully to reclaim metallic nickel cobalt in sediment; Waste residue after press filtration enters waste residue treatment process, qualified discharge;
C, sulfuration process step: the pregnant solution after pretreatment technology step enters nickel and cobalt recovery reactor, add powdered sodium carbonate, the sodium hydrosulfide of mass percent concentration 15% reacts with the nickel cobalt metal in pregnant solution after pretreatment technology step, powdered sodium carbonate consumption is controlled by the pH value in nickel and cobalt recovery reactor, pH value is 5.0, sodium hydrosulfide consumption is determined by the redox potential value in nickel and cobalt recovery reactor, oxidation reduction potential control is 60-100 millivolt, uniform stirring simultaneously, churning time 0.5 hour, nickel cobalt mixed slurry enters settling tank, add the flocculant solution of mass percent concentration 0.05% simultaneously, flocculation agent is iron(ic) chloride, polymerize aluminum chloride, polyacrylamide in mass ratio 1:1:1 mixes, flocculation agent dry powder consumption adds 3mg by every liter of pregnant solution, carry out coagulating, run by gravity mixes 5 minutes, nickel cobalt mixed slurry enters central feeding formula concentration basin, carry out solid-liquid separation, concentration time is 2 hours, slurry concentration 5%, sediment is exported from concentration basin bottom after concentrated, enter plate-and-frame filter press, filter cloth aperture is 1000 orders, pressure 0.3 megapascal (MPa), 1.0 hours time, in pressure-filtering process, the sediment of concentration basin further dewaters through pressure filter, and the filter cake of formation is nickelous carbonate cobalt and nickelous sulfide cobalt product, filtrate after press filtration turns back to nickel cobalt concentration basin and continues clarification, concentration basin is discharged waste water and is entered water technology, qualified discharge.
Embodiment bis-
From many metals sour water, reclaim a method for nickel cobalt, specifically comprise following processing method step:
A, process of enriching step: taking the acid waste water that contains iron, aluminium, copper, nickel, cobalt metal as raw material, in its sour water, nickel, cobalt contents are not less than 5.0 mg/litre, acid waste water is forced into 0.1 megapascal (MPa) by pump and enters acidic water filter, remove suspended particle impurity wherein, then along pressing, pressure reduction is less than 0.02 megapascal (MPa), enters the ion-exchanger that the acid resin of WP-2 positively charged ion is housed, and carries out ion exchange reaction, nickel in resin absorption sour water, cobalt, iron, aluminum ion, sour water flow is controlled at 40 times/hour of resin volume, in the time that the water yield of the ion-exchanger by the acid resin of WP-2 positively charged ion is housed reaches 100 times of resin volume, stop the injection of acid waste water, first water takes off and washes resin, then regenerate with the sulfuric acid of mass percent concentration 8%, under the condition that is 1.0 in pH value, the metallic nickel of regenerating, cobalt contents reaches metallic nickels more than 350 mg/litre, cobalt pregnant solution, rear water rinses ion exchange resin, make the interior pH value of ion-exchanger that the acid resin of WP-2 positively charged ion is housed bring up to 3.5, recover the ion exchanging function of the acid resin of WP-2 positively charged ion, the acid resin of WP-2 positively charged ion completes an ion-exchange through " absorption-Tuo wash-regenerate-rinse " and circulates, then carry out next one circulation, waste water after ion-exchange enters water technology, qualified discharge,
B, pretreatment technology step: the pregnant solution that process of enriching produces enters deironing, removes reactive aluminum device, simultaneously to deironing, add hydrogen peroxide and Paris white except in reactive aluminum device, pH value is controlled at 4.5, and hydrogen peroxide makes divalence ferrous ion be converted into ferric ion, simultaneously uniform stirring, stir after 1.0 o'clock, enter plate-and-frame filter press by pump pressurization, filter cloth is 500 orders, pressure 0.5 megapascal (MPa), 2.0 hours time, the filtrate after press filtration is not containing metal iron, aluminum ions nickel cobalt pregnant solution; In pressure-filtering process, ironic hydroxide, aluminium hydroxide sediment that metallic iron, aluminum ion and calcium carbonate form need twice press filtration and once flushing, fully to reclaim metallic nickel cobalt in sediment; Waste residue after press filtration enters waste residue treatment process, qualified discharge;
C, sulfuration process step: the pregnant solution after pretreatment technology step enters nickel and cobalt recovery reactor, add powdered sodium carbonate, the sodium sulphite of mass percent concentration 25% and the mixing solutions of potassium sulphide react with the nickel cobalt metal in pregnant solution after pretreatment technology step, sodium sulphite and potassium sulphide in mass ratio 1:1 mix, powdered sodium carbonate consumption is controlled by the pH value in nickel and cobalt recovery reactor, it is 5.5 that pH value is controlled, the mixing solutions consumption of sodium sulphite and potassium sulphide is determined by the redox potential value in nickel and cobalt recovery reactor, oxidation reduction potential control is 20-80 millivolt, uniform stirring simultaneously, churning time 1.0 hours, nickel cobalt mixed slurry enters settling tank, add the flocculant solution of mass percent concentration 0.15% simultaneously, flocculation agent is aluminum chloride, ferric sulfate, polyaluminium sulfate, polyacrylic acid, sodium polyacrylate, calcium polyacrylate (CPA) in mass ratio 1:1:1:1:1:1 mixes, flocculation agent dry powder consumption adds 1mg by every liter of pregnant solution, carry out coagulating, run by gravity mixes 8 minutes, after mixing, nickel cobalt mixed slurry enters central feeding formula concentration basin, carry out solid-liquid separation, concentration time is 3 hours, slurry concentration 20%, sediment is exported from concentration basin bottom after concentrated, enter plate-and-frame filter press, filter cloth aperture is 1500 orders, pressure 0.5 megapascal (MPa), 2.0 hours time, in pressure-filtering process, the sediment of concentration basin further dewaters through pressure filter, and the filter cake of formation is nickelous carbonate cobalt and nickelous sulfide cobalt product, filtrate after press filtration turns back to nickel cobalt concentration basin and continues clarification, concentration basin is discharged waste water and is entered water technology, qualified discharge.
Example three
From many metals sour water, reclaim a method for nickel cobalt, specifically comprise following processing method step:
A, process of enriching step: taking the acid waste water that contains iron, aluminium, copper, nickel, cobalt metal as raw material, in its sour water, nickel, cobalt contents are not less than 6.5 mg/litre, acid waste water is forced into 0.01 megapascal (MPa) by pump and enters acidic water filter, remove suspended particle impurity wherein, then along pressing, pressure reduction is less than 0.03 megapascal (MPa), enters the ion-exchanger that the acid resin of WP-2 positively charged ion is housed, and carries out ion exchange reaction, nickel in resin absorption sour water, cobalt, iron, aluminum ion, sour water flow is controlled at 50 times/hour of resin volume, in the time that the water yield of the ion-exchanger by the acid resin of WP-2 positively charged ion is housed reaches 80 times of resin volume, stop the injection of acid waste water, first water takes off and washes resin, then regenerate with the sulfuric acid of mass percent concentration 16%, under the condition that is 0.5 in pH value, the metallic nickel of regenerating, cobalt contents reaches metallic nickels more than 450 mg/litre, cobalt pregnant solution, rear water rinses ion exchange resin, the interior pH value of ion-exchanger that the acid resin of WP-2 positively charged ion is housed brings up to 4.0, recover the ion exchanging function of the acid resin of WP-2 positively charged ion, the acid resin of WP-2 positively charged ion completes an ion-exchange through " absorption-Tuo wash-regenerate-rinse " and circulates, then carry out next one circulation, waste water after ion-exchange enters water technology, qualified discharge,
B, pretreatment technology step: the pregnant solution that process of enriching produces enters deironing, removes reactive aluminum device, simultaneously to deironing, add hydrogen peroxide and Paris white except in reactive aluminum device, pH value is controlled at 5.5, and hydrogen peroxide makes divalence ferrous ion be converted into ferric ion, simultaneously uniform stirring, stir after 1.5 o'clock, enter plate-and-frame filter press by pump pressurization, filter cloth is 1500 orders, pressure 0.8 megapascal (MPa), 4.0 hours time, the filtrate after press filtration is not containing metal iron, aluminum ions nickel cobalt pregnant solution; In pressure-filtering process, ironic hydroxide, aluminium hydroxide sediment that metallic iron, aluminum ion and calcium carbonate form need twice press filtration and once flushing, fully to reclaim metallic nickel cobalt in sediment; Waste residue after press filtration enters waste residue treatment process, qualified discharge;
C, sulfuration process step: the pregnant solution after pretreatment technology step enters nickel and cobalt recovery reactor, add powdered sodium carbonate, the sodium sulphite of mass percent concentration 38%, potassium sulphide and the mixing solutions of potassium bisulfide react with the nickel cobalt metal in pregnant solution after pretreatment technology step, sodium sulphite, potassium sulphide and potassium bisulfide in mass ratio 1:1:1 mix, powdered sodium carbonate consumption is controlled by the pH value in nickel and cobalt recovery reactor, it is 5.8 that pH value is controlled, sodium sulphite, the mixing solutions consumption of potassium sulphide and potassium bisulfide is determined by the redox potential value in nickel and cobalt recovery reactor, oxidation reduction potential control is 0-40 millivolt, uniform stirring simultaneously, churning time 1.5 hours, nickel cobalt mixed slurry enters settling tank, add the flocculant solution of mass percent concentration 0.25% simultaneously, flocculation agent is Tai-Ace S 150, poly-ferric chloride, bodied ferric sulfate, acrylamide, styrene sulfonate, ligninsulfonate, vinylformic acid in mass ratio 1:1:1:1:1:1:1 mixes, flocculation agent dry powder consumption adds 5mg by every liter of pregnant solution, carry out coagulating, run by gravity mixes 10 minutes, after mixing, nickel cobalt mixed slurry enters central feeding formula concentration basin, carry out solid-liquid separation, concentration time is 4 hours, slurry concentration 30%, sediment is exported from concentration basin bottom after concentrated, enter plate-and-frame filter press, filter cloth aperture is 500 orders, pressure 0.8 megapascal (MPa), time of filter pressing 4.0 hours, in pressure-filtering process, the sediment of concentration basin further dewaters through pressure filter, and the filter cake of formation is nickelous carbonate cobalt and nickelous sulfide cobalt product, filtrate after press filtration turns back to nickel cobalt concentration basin and continues clarification, concentration basin is discharged waste water and is entered water technology, qualified discharge.
Claims (7)
1. a method that reclaims nickel cobalt from many metals sour water, comprises following processing step:
A, process of enriching step: taking the acid waste water that contains iron, aluminium, copper, nickel, cobalt metal as raw material, in its sour water, nickel, cobalt contents are not less than 3.5 mg/litre, acid waste water is forced into 0.01-0.20 megapascal (MPa) by pump and enters acidic water filter, remove suspended particle impurity wherein, then carry out ion exchange reaction along compressing into into the ion-exchanger that resin is housed; Nickel, cobalt, iron, aluminum ion in resin absorption sour water, the 25-50 that sour water flow is controlled at resin volume doubly/hour, in the time that the water yield of the ion-exchanger by resin is housed reaches 80-120 times of resin volume, stop the injection of acid waste water; First water takes off and washes resin, then regenerate with the sulfuric acid of mass percent concentration 6-16%, under the condition that is 0.5-1 in pH value, regenerate metallic nickel, cobalt contents reaches more than 300 mg/litre metallic nickel, cobalt pregnant solution, rear water rinses ion exchange resin, make the interior pH value of ion-exchanger that resin is housed bring up to 3.0-4.0, recover the ion exchanging function of resin;
B, pretreatment technology step: pregnant solution is passed into deironing, removes reactive aluminum device, simultaneously to deironing, add hydrogen peroxide and Paris white except in reactive aluminum device, pH value is controlled at 3.5-5.5, uniform stirring 0.5-1.5 hour, then enter filtrate after pressure filter press filtration for not containing metal iron, aluminum ions nickel cobalt pregnant solution by pump pressurization; In pressure-filtering process, the ironic hydroxide of metallic iron, aluminum ion and calcium carbonate formation, aluminium hydroxide sediment are through twice press filtration and once flushing;
C, sulfuration process step: the pregnant solution after pretreatment technology step is passed into nickel and cobalt recovery reactor, add the sulfidic material solution of powdered sodium carbonate and mass percent concentration 15-38% to react, uniform stirring 0.5-1.5 hour simultaneously, sulfidic material solution usage is definite by the redox potential value in nickel and cobalt recovery reactor, and oxidation reduction potential control is 0-100 millivolt; Nickel cobalt mixed slurry enters settling tank again, add the flocculant solution of mass percent concentration 0.05-0.25% simultaneously, flocculant solution consumption is that every liter of enrichment liquid measure is added flocculation agent dry powder 1-5mg, carry out coagulating, run by gravity mixing 5-10 minute, the rear nickel cobalt mixed slurry of mixing enters central feeding formula concentration basin and carries out solid-liquid separation, concentration time is 2-4 hour, the mass percent concentration 5-30% of slurry, sediment is exported from concentration basin bottom, and carries out press filtration processing; In pressure-filtering process, the sediment of concentration basin further dewaters through pressure filter, and the filter cake of formation is nickelous carbonate cobalt and nickelous sulfide cobalt product; Filtrate after press filtration turns back to nickel cobalt concentration basin and continues clarification.
2. a kind of method that reclaims nickel cobalt from many metals sour water according to claim 1, is characterized in that: in described process of enriching step, be less than 0.03 megapascal (MPa) along compressing into into the suitable pressure reduction of the ion-exchanger that acidic resins are housed.
3. a kind of method that reclaims nickel cobalt from many metals sour water according to claim 1, is characterized in that: in described pretreatment technology step, canvas press cloth is 500-1500 order pressure 0.3-0.8 megapascal (MPa), time 1.0-4.0 hour.
4. a kind of method that reclaims nickel cobalt from many metals sour water according to claim 1, is characterized in that: in described sulfuration process step, powdered sodium carbonate consumption is controlled by the pH value in nickel and cobalt recovery reactor, and pH value is controlled as 5.0-5.8.
5. a kind of method that reclaims nickel cobalt from many metals sour water according to claim 1, is characterized in that: in described sulfuration process step, canvas press cloth is 500-1500 order pressure 0.3-0.8 megapascal (MPa), time of filter pressing 1.0-4.0 hour.
6. a kind of method that reclaims nickel cobalt from many metals sour water according to claim 1, is characterized in that: described sulfuration process medium sulphide content matter is one or more combination of Sodium sulfhydrate, sodium sulphite, potassium bisulfide, potassium sulphide.
7. a kind of method that reclaims nickel cobalt from many metals sour water according to claim 1, is characterized in that: in described sulfuration process, flocculation agent is one or more combinations in inorganic flocculating agent, organic floculant.
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| JP2016194124A (en) * | 2015-04-01 | 2016-11-17 | 住友金属鉱山株式会社 | Manufacturing method of mixed sulfide of nickel and cobalt and wet type refining method of nickel oxide ore |
| CN111302404A (en) * | 2020-03-11 | 2020-06-19 | 吕文广 | Method for reducing impurities in nickel carbonate or cobalt carbonate |
| CN114656068A (en) * | 2022-05-23 | 2022-06-24 | 长沙华时捷环保科技发展股份有限公司 | Treatment method of nickel-cobalt-manganese hydrometallurgy wastewater |
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