CN106756065A - A kind of method of Recovering Copper ferronickel in matte from fuming furnace - Google Patents
A kind of method of Recovering Copper ferronickel in matte from fuming furnace Download PDFInfo
- Publication number
- CN106756065A CN106756065A CN201611154134.4A CN201611154134A CN106756065A CN 106756065 A CN106756065 A CN 106756065A CN 201611154134 A CN201611154134 A CN 201611154134A CN 106756065 A CN106756065 A CN 106756065A
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- Prior art keywords
- copper
- electrodeposition
- matte
- fuming furnace
- liquid
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Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/04—Working-up slag
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B15/00—Obtaining copper
- C22B15/0063—Hydrometallurgy
- C22B15/0065—Leaching or slurrying
- C22B15/0067—Leaching or slurrying with acids or salts thereof
- C22B15/0071—Leaching or slurrying with acids or salts thereof containing sulfur
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B23/00—Obtaining nickel or cobalt
- C22B23/04—Obtaining nickel or cobalt by wet processes
- C22B23/0407—Leaching processes
- C22B23/0415—Leaching processes with acids or salt solutions except ammonium salts solutions
- C22B23/043—Sulfurated acids or salts thereof
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/006—Wet processes
- C22B7/007—Wet processes by acid leaching
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
- C25C1/12—Electrolytic production, recovery or refining of metals by electrolysis of solutions of copper
-
- 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
The invention discloses a kind of method of Recovering Copper ferronickel in matte from fuming furnace, it is characterised in that completed by following processing step：（1）Broken and ball milling；（2）The logical oxygen of pressurization is leached；（3）Copper electrodeposition；（4）Evaporative crystallization nickel sulfate.The present invention is by the logical oxygen leaching-out technique of pressurization, cupro-nickel in fuming furnace matte can be effectively leached in solution, by copper electrodeposition output tough cathode, electrodeposition decopper(ing) removes evaporative crystallization output nickel sulfate product after the impurity such as arsenic antimony, the raw material that leached mud can be smelted iron by magnetic separation as steel plant.This technology flow is short, and recovery rate of valuable metals is high, it is possible to achieve serialization automated production, is a kind of free of contamination process for cleanly preparing.
Description
Technical field
The present invention relates to a kind of method of Recovering Copper ferronickel in matte from fuming furnace, belong to non-ferrous metal hydrometallurgy
Field.
Background technology
At present, the material of fuming furnace treatment is pyrometallurgical smelting slag, the valuable gold such as iron content, tin, lead, zinc, antimony, nickel and copper
Category, during fuming furnace sulfiding volatilization, beyond copper removal, nickel, iron, other metals can all have these materials to varying degrees
Different degrees of volatilization.Copper, nickel, iron sulfide etc. these hardly possible volatilization materials enter into fuming furnace liquid slag, formed iron,
Nickel, copper content matte high, general cupric are 10 ~ 25%, nickel 3 ~ 10%, iron 25 ~ 45%.
The process for processing such matte is less, and number of patent application CN101701294A is one kind from waste slag of fuming furnace
The thermal process of copper is reclaimed, the method has a high energy consumption, production cost is big, the problems such as the rate of recovery of copper is not high.
The content of the invention
It is an object of the invention to leach the copper and mickel in fuming furnace matte using the logical oxygen extract technology of pressurization, while matte
Interior iron can also be recycled utilization, so as to provide a kind of comprehensive reutilization method of fuming furnace matte valuable metal.
To achieve the above object, the present invention is achieved by the following technical solutions：
The method of Recovering Copper ferronickel, is made up of following processing step in a kind of matte from fuming furnace：
（1）Broken and ball milling
Fuming furnace matte material is arrived below -160 mesh by broken, ore grinding, classification, and after slurry filtration, it is 10 ~ 20% to obtain aqueous
Material；
（2）The logical oxygen of pressurization is leached
Above-mentioned material is entered together with liquid after copper electric effusion and sulfuric acid and is mixed with acid tank, and add dispersant to mix simultaneously, then pump
Enter to autoclave, to pressurization oxygen-enriched atmosphere is provided in autoclave, pressure oxidation is leached in autoclave, flashed down discharge, Gu
Liquid is separated, and cupro-nickel is entered in leachate, the raw material that slag is smelted iron after washing magnetic separation as steel plant；
（3）Copper electrodeposition
By step（2）Leachate after separation of solid and liquid is pumped into copper electrodeposition operation, leads to direct current electrodeposition production tough cathode, copper electricity
Liquid returns to above-mentioned with acid tank after product, recycles；
（4）Evaporative crystallization nickel sulfate
In order to reclaim nickel, electrodeposition process condition is balanced, periodically extracting part copper electric effusion carries out decopper(ing) arsenic removal antimony tin to evaporate knot
Brilliant nickel sulfate product.
The method of Recovering Copper ferronickel in a kind of above-mentioned matte from fuming furnace, leached mud is iron content bloodstone high,
Leachate produces tough cathode using electrodeposition, and electrodeposition copper removal arsenic antimony separates evaporative crystallization nickel sulfate product.
The method of Recovering Copper ferronickel, step in a kind of above-mentioned matte from fuming furnace（2）Described pressurised oxygen is leached
Technical data is：Acid concentration is 80 ~ 200g/L, and liquid-solid ratio is 3.5 ~ 6：1,140 ~ 180 DEG C of temperature, partial pressure of oxygen be 0.6 ~
1.2MPa, the reaction time be 2 ~ 6h, dispersant dosage be 1 ~ 4%, after the completion of leaching, slurry by separation of solid and liquid, obtain it is nickeliferous,
The leachate of copper, leached mud of the iron concentration less than 5g/L and Iron grade more than 35%, the iron in leached mud is in bloodstone form
In the presence of leached mud is more than 60% by magnetic separation to iron content, can be as the raw material of steel plant.
The method of Recovering Copper ferronickel, step in a kind of above-mentioned matte from fuming furnace（3）The ginseng of described copper electrodeposition
Number is：Tank voltage is 2.0 ~ 2.5V, 45 ~ 75 DEG C of temperature；90 ~ 110mm of die opening；Acidity is 100 ~ 160g/L；Current density is
100 ~ 200A/m2, electric effusion circular flow is 25 ~ 50L/min.
The method of Recovering Copper ferronickel in a kind of above-mentioned matte from fuming furnace, periodically extracting part copper electric effusion is carried out
To isolate nickel sulfate product, its technique is decopper(ing) arsenic removal antimony：Liquid electrodeposition decopper(ing) removes arsenic antimony after electrodeposition；When the copper in solution from
When son is less than 1.5g/L, is evaporated in vacuo sulphuric acid concentration to 700 ~ 900g/L, crystallization production nickel sulfate product.
The method of Recovering Copper ferronickel in a kind of above-mentioned matte from fuming furnace, the dispersant is lignin sulfonic acid
Sodium, calcium lignosulfonate, the mixture of one or more in coal dust.
Beneficial effects of the present invention are：The method of the present invention can sufficiently extract the copper and mickel in fuming furnace matte,
The rate of recovery of copper and mickel can reach more than 97%, it is possible to achieve continuous automatic production, working condition are good, low production cost, tool
There are obvious economic benefit and environmental benefit, be a kind of process for cleanly preparing.
Brief description of the drawings
Fig. 1 is process chart of the invention.
Specific embodiment
The present invention can be so that the invention will be further described, however, the scope of the present invention by following case study on implementation
It is not limited to following embodiments.
Embodiment 1：Operated according to shown in Fig. 1.
A kind of typical fuming furnace matte chemical composition is shown in Table 1：
A kind of typical fuming furnace matte chemical composition of table 1, unit %
| Cu | Ni | Fe | S | As | Sb | Pb | Sn | SiO2 |
| 19.69 | 5.12 | 35.74 | 19.36 | 0.36 | 0.27 | 0.032 | 0.7 | 1.38 |
1. crush and ball milling
The fuming furnace matte chemical composition according to table 1, during tissue production, by matte material by being crushed to below 10mm, warp
Cross wet ball-milling, classification to below -160 mesh, filter out it is aqueous be 10 ~ 20% matte material.
2. the logical oxygen that pressurizes is leached
The matte material of -160 mesh moisture contents is delivered to in acid tank, according to liquid-solid ratio is leached, liquid/sulfuric acid/water after electrodeposition is added,
It is 140g/L that beginning acid concentration is leached in regulation, and it is 4.5/1 to leach liquid-solid ratio；It is continuous to leach；Leaching condition is：Time 3h, terminal acid
It is 25g/L to spend, 150 DEG C of temperature, and partial pressure of oxygen is 0.8MPa, 3% sodium lignin sulfonate.Cu leaching rates are more than 97%, and nickel leaching rate is big
In 98%, leachate iron concentration is less than 5g/L.When leachate cupric is more than 65g/L, leachate delivers to copper electrodeposition operation.
Leached mud iron content is more than 35%, and washing is more than 60% by magnetic separation to iron content, can be as the raw material of steel plant's ironmaking.
3. copper electrodeposition
Allocate the leachate that the logical oxygen that pressurizes is leached into sulfuric acid to 140 ~ 150g/L, pump into copper electrodeposition operation, the gold of copper electrodeposition operation
Belonging to parameter is：Tank voltage is 2.0 ~ 2.5V, and 55 ~ 60 DEG C of temperature, die opening is 90 ~ 110mm, and current density is：100~200A/
M2, electric effusion circular flow is 30 ~ 40L/min.Electrodeposition waste liquid returns to pressure leaching operation and is recycled as leaching agent.
4. evaporative crystallization nickel sulfate product
According to the accumulative situation of nickel arsenic antimony tin in copper electrolytic deposition process, in order to maintain the conditional equilibrium of electrodeposition process, periodically from electrodeposition
Electric effusion is extracted in system carries out electrodeposition decopper(ing) removing arsenic antimony：When the copper ion in solution is less than 1.5g/L, evaporation and concentration sulfuric acid
During to 700 ~ 900g/L, recrystallization production nickel sulfate product.
The method of the present invention can sufficiently extract the copper and mickel in fuming furnace matte, and the rate of recovery of copper and mickel can reach
To more than 97%, it is possible to achieve continuous automatic production, working condition are good, low production cost, with obvious economic benefit and ring
Border benefit, is a kind of process for cleanly preparing.
General principle of the invention, principal character and advantages of the present invention has been shown and described above.The technology of the industry
Personnel it should be appreciated that the present invention is not limited to the above embodiments, the simply present invention described in above-described embodiment and specification
Principle, various changes and modifications of the present invention are possible without departing from the spirit and scope of the present invention, these change and
Improvement is both fallen within the range of claimed invention.The protection domain of application claims by appending claims and its
Equivalent is defined.
Claims (6)
1. in a kind of matte from fuming furnace Recovering Copper ferronickel method, it is characterised in that be made up of following processing step：
（1）Broken and ball milling
Fuming furnace matte material is arrived below -160 mesh by broken, ore grinding, classification, and after slurry filtration, it is 10 ~ 20% to obtain aqueous
Material；
（2）The logical oxygen of pressurization is leached
Above-mentioned material is entered together with liquid after copper electric effusion and sulfuric acid and is mixed with acid tank, and add dispersant to mix simultaneously, then pump
Enter to autoclave, to pressurization oxygen-enriched atmosphere is provided in autoclave, pressure oxidation is leached in autoclave, flashed down discharge, Gu
Liquid is separated, and cupro-nickel is entered in leachate, the raw material that slag is smelted iron after washing magnetic separation as steel plant；
（3）Copper electrodeposition
By step（2）Leachate after separation of solid and liquid is pumped into copper electrodeposition operation, leads to direct current electrodeposition production tough cathode, copper electrodeposition
Liquid returns to above-mentioned with acid tank afterwards, recycles；
（4）Evaporative crystallization nickel sulfate
In order to reclaim nickel, electrodeposition process condition is balanced, periodically extracting part copper electric effusion carries out decopper(ing) arsenic removal antimony tin to evaporate knot
Brilliant nickel sulfate product.
2. in a kind of matte from fuming furnace according to claim 1 Recovering Copper ferronickel method, it is characterised in that leaching
It is iron content bloodstone high to slag tap, and leachate produces tough cathode using electrodeposition, and electrodeposition copper removal arsenic antimony separates evaporative crystallization nickel sulfate
Product.
3. in a kind of matte from fuming furnace according to claim 1 and 2 Recovering Copper ferronickel method, its feature exists
In step（2）Described pressurised oxygen extract technology technical parameter is：Acid concentration is 80 ~ 200g/L, and liquid-solid ratio is 3.5 ~ 6：1, temperature
140 ~ 180 DEG C of degree, partial pressure of oxygen is 0.6 ~ 1.2MPa, and the reaction time is 2 ~ 6h, and dispersant dosage is 1 ~ 4%, after the completion of leaching, material
Slurry obtains nickeliferous, copper leachate by separation of solid and liquid, and iron concentration is more than 35% leached mud less than 5g/L and Iron grade,
Iron in leached mud exists in bloodstone form, and leached mud is more than 60% by magnetic separation to iron content, can be as the original of steel plant
Material.
4. in a kind of matte from fuming furnace according to claim 1 and 2 Recovering Copper ferronickel method, its feature exists
In step（3）The parameter of described copper electrodeposition is：Tank voltage is 2.0 ~ 2.5V, 45 ~ 75 DEG C of temperature；90 ~ 110mm of die opening；Acid
It is 100 ~ 160g/L to spend；Current density is 100 ~ 200A/m2, and electric effusion circular flow is 25 ~ 50L/min.
5. in a kind of matte from fuming furnace according to claim 1 and 2 Recovering Copper ferronickel method, its feature exists
In periodically extracting part copper electric effusion carries out decopper(ing) arsenic removal antimony to isolate nickel sulfate product, and its technique is：Liquid electrodeposition after electrodeposition
Decopper(ing) removes arsenic antimony；When the copper ion in solution is less than 1.5g/L, is evaporated in vacuo sulphuric acid concentration to 700 ~ 900g/L, crystallization life
Produce nickel sulfate product.
6. in a kind of matte from fuming furnace according to claim 3 Recovering Copper ferronickel method, it is characterised in that institute
Dispersant is stated for sodium lignin sulfonate, calcium lignosulfonate, the mixture of one or more in coal dust.
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| CN201611154134.4A CN106756065A (en) | 2016-12-14 | 2016-12-14 | A kind of method of Recovering Copper ferronickel in matte from fuming furnace |
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| CN201611154134.4A CN106756065A (en) | 2016-12-14 | 2016-12-14 | A kind of method of Recovering Copper ferronickel in matte from fuming furnace |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107557592A (en) * | 2017-08-11 | 2018-01-09 | 中南大学 | Copper arsenic separating technology in a kind of high concn. arsenic and lead matte |
| CN108034823A (en) * | 2017-12-08 | 2018-05-15 | 江西自立环保科技有限公司 | A kind of method that molybdenum and copper are recycled in the molybdenum removal slag from Tungsten smelting |
| CN108796237A (en) * | 2018-07-03 | 2018-11-13 | 云南锡业研究院有限公司 | A kind of wet treatment method of tin copper ashes |
| CN109136531A (en) * | 2018-08-01 | 2019-01-04 | 昆明理工大学 | A kind of method that oxygen pressure wet type high temperature Low acid leaches iron in conversion recycling copper smelting slag |
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| CN102851495A (en) * | 2012-08-29 | 2013-01-02 | 江西自立资源再生有限公司 | Technology for producing cathode copper through high-pressure oxygen leaching of copper and nickel contained melting slag |
| CN105200235A (en) * | 2015-07-27 | 2015-12-30 | 江西睿锋环保有限公司 | Method for recycling valuable metal from electroplating sludge to prepare cathode copper and battery level nickel sulfate |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107557592A (en) * | 2017-08-11 | 2018-01-09 | 中南大学 | Copper arsenic separating technology in a kind of high concn. arsenic and lead matte |
| CN108034823A (en) * | 2017-12-08 | 2018-05-15 | 江西自立环保科技有限公司 | A kind of method that molybdenum and copper are recycled in the molybdenum removal slag from Tungsten smelting |
| CN108796237A (en) * | 2018-07-03 | 2018-11-13 | 云南锡业研究院有限公司 | A kind of wet treatment method of tin copper ashes |
| CN109136531A (en) * | 2018-08-01 | 2019-01-04 | 昆明理工大学 | A kind of method that oxygen pressure wet type high temperature Low acid leaches iron in conversion recycling copper smelting slag |
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