CN107858509A - The device of iron removaling in hydrometallurgy iron-containing liquor - Google Patents
The device of iron removaling in hydrometallurgy iron-containing liquor Download PDFInfo
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- CN107858509A CN107858509A CN201711120629.XA CN201711120629A CN107858509A CN 107858509 A CN107858509 A CN 107858509A CN 201711120629 A CN201711120629 A CN 201711120629A CN 107858509 A CN107858509 A CN 107858509A
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- Prior art keywords
- iron
- reactor
- hydrometallurgy
- containing liquor
- ferric
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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
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/44—Treatment or purification of solutions, e.g. obtained by leaching by chemical processes
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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
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/02—Apparatus therefor
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- 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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- Geochemistry & Mineralogy (AREA)
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- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a kind of device of iron removaling in hydrometallurgy iron-containing liquor.Wherein, the device includes：First homogenizing distributing device, for hydrometallurgy iron-containing liquor to be added in reactor；Reactor, for the iron reaction generation goethite in hydrometallurgy iron-containing liquor；And concentrator, for the goethite generated in reactor to be removed by separation of solid and liquid.Apply the technical scheme of the present invention, hydrometallurgy iron-containing liquor is added in reactor by being homogenized distributing device, directly it can will be converted into goethite precipitation with ferric iron in solution, the ferric conversion of ferric iron ferrous iron is carried out without adding a large amount of reducing agents and oxidant as prior art, returned without crystal seed, saved operating cost.
Description
Technical field
The present invention relates to metal smelt technical field, in particular to iron removaling in a kind of hydrometallurgy iron-containing liquor
Device.
Background technology
Iron is usually impurity element, it is necessary to be removed in wet smelting process.When the iron in solution is ferric iron, mesh
The preceding method mainly precipitated using direct neutralizing hydrolysis, but such a method primary product is iron hydroxide, in colloidal, it is difficult to enter
Row separation of solid and liquid, if precipitated using concentrator, underflow density is typically smaller than 20%, and underflow ore pulp can be carried secretly away largely
Water, also need further to handle.Or as described in patent CN 102010994A and patent CN 103468951A, first add reducing agent will
Ferric iron back is into ferrous iron, then ferrous iron is slowly oxidized to ferric iron as oxidant and adds neutralization again by logical oxygen or hydrogen peroxide
The mode of agent precipitation forms goethite, changes sedimentation and the strainability of slag with this, but such a method need to consume a large amount of reducing agents
And oxidant, while generate reducing slag.
The content of the invention
The present invention is intended to provide in a kind of hydrometallurgy iron-containing liquor iron removaling device, with solve need to disappear in the prior art
Consume the technical problem of a large amount of reducing agents and oxidant.
To achieve these goals, according to an aspect of the invention, there is provided being removed in a kind of hydrometallurgy iron-containing liquor
The device of iron.The device includes：First homogenizing distributing device, for hydrometallurgy iron-containing liquor to be added in reactor；Reaction
Device, for the iron reaction generation goethite in hydrometallurgy iron-containing liquor；And concentrator, for the pin that will be generated in reactor
Iron ore is removed by separation of solid and liquid.
Further, in addition to second is homogenized distributing device, for nertralizer to be added into reactor.
Further, the first homogenizing distributing device is even-dispersing device.
Further, reactor is the reactor with agitating function.
Further, reactor is multiple, and is connected between multiple reactors for gravity flow.
Apply the technical scheme of the present invention, hydrometallurgy iron-containing liquor be added in reactor by being homogenized distributing device,
Directly goethite precipitation can will be converted into ferric iron in solution, without adding a large amount of reducing agents and oxidation as prior art
Agent carries out ferric iron-ferrous iron-ferric conversion, is returned without crystal seed, has saved operating cost, and such a method precipitation is easy
Separation of solid and liquid, thickener underflow concentration can reach more than 35%, reduce the entrainment of valuable metal in underflow ore pulp, improve and remove
The rate of recovery of the outer valuable metal of iron.
Brief description of the drawings
The Figure of description for forming the part of the application is used for providing a further understanding of the present invention, and of the invention shows
Meaning property embodiment and its illustrate be used for explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 shows the apparatus structure of iron removaling in the hydrometallurgy iron-containing liquor according to a typical embodiment of the invention
And process flow diagram.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
The principle of separation of iron in goethite form is between pH 2.5-4, and 65~100 DEG C of temperature, ferric concentration is less than in solution
1g/L, it is crucial for how controlling ferric concentration in solution, first reduces the main mesh of the technique slowly aoxidized again in the prior art
Be the content for controlling the iron in solution in low-level, main process of the invention is to cancel the process that reoxidizes of reduction, to subtract
Few reagent consumption, investment reduction, equally reaches generation goethite purpose, improves the sedimentation filtration performance of solid.
According to a kind of typical embodiment of the present invention, there is provided the device of iron removaling in a kind of hydrometallurgy iron-containing liquor.Should
Device includes：For the first homogenizing distributing device being added to hydrometallurgy iron-containing liquor in reactor, contain for hydrometallurgy
The reactor of iron reaction generation goethite in ferrous solution, and for the goethite generated in reactor to be passed through into separation of solid and liquid
The concentrator of removal.
Apply the technical scheme of the present invention, hydrometallurgy iron-containing liquor be added in reactor by being homogenized distributing device,
Directly goethite precipitation can will be converted into ferric iron in solution, without adding a large amount of reducing agents and oxidation as prior art
Agent carries out ferric iron-ferrous iron-ferric conversion, is returned without crystal seed, has saved operating cost, and such a method precipitation is easy
Separation of solid and liquid, thickener underflow concentration can reach more than 35%, reduce the entrainment of valuable metal in underflow ore pulp, improve and remove
The rate of recovery of the outer valuable metal of iron.
Preferably, in addition to second is homogenized distributing device, for nertralizer to be added into reactor, because homogenizing distributing device can
So that nertralizer uniformly slowly adds reactor, the stability of reaction system in reactor is improved, is advantageous to the suitable of production
Profit is carried out.Preferably, reactor is multiple, and is connected between multiple reactors for gravity flow, and it is 1~3 that can control the reaction time
Hour.
Preferably, the first homogenizing distributing device is even-dispersing device.So hydrometallurgy iron-containing liquor can be made uniformly to delay
Slow addition reactor, be advantageous to control any ferric concentration of place's solution in reactor to be less than 1g/L, will not be because of addition
Concentrate very much and uneven situation occur.It is furthermore preferred that reactor is the reactor with agitating function, there is utilization to keep reactor
The uniformity of interior solution.
In a kind of typical embodiment of the present invention, iron removaling comprises the following steps in hydrometallurgy iron-containing liquor：Pass through
Hydrometallurgy iron-containing liquor is added in reactor by the first homogenizing distributing device, controls ferric concentration in reactor to be less than
1g/L, and pH=2.5~4 of solution in reactor are controlled, temperature is 65~100 DEG C, and the reaction time is 1~3 hour, after reaction
Solution carry out separation of solid and liquid, in the form of goethite remove hydrometallurgy iron-containing liquor in iron.
Reaction equation is as follows：
Fe3++2H2O=FeOOH+2H+
Preferably, pH=2.5~4 for controlling solution in reactor are in being added by the second homogenizing distributing device to reactor
Realized with agent, because homogenizing distributing device can make nertralizer uniformly slowly add reactor, improve in reactor and react
The stability of system, be advantageous to being smoothed out for production.Preferably, reactor is multiple, and is gravity flow between multiple reactors
Connection, it is 1~3 hour that can control the reaction time.
Nertralizer is one kind or more in the group selected from lime stone, lime, magnesia, zinc oxide and sodium hydroxide composition
Kind.It is typically to be added in the form of slurry in addition to sodium hydroxide, sodium hydroxide is soluble, is led in actual mechanical process
It is often that the solution for being made into certain concentration adds.
Preferably, the first homogenizing distributing device is even-dispersing device.So hydrometallurgy iron-containing liquor can be made uniformly to delay
Slow addition reactor, be advantageous to control any ferric concentration of place's solution in reactor to be less than 1g/L, will not be because of addition
Concentrate very much and uneven situation occur.It is furthermore preferred that reactor is the reactor with agitating function, there is utilization to keep reactor
The uniformity of interior solution.
According to a kind of typical embodiment of the present invention, when containing ferrous iron in hydrometallurgy iron-containing liquor, to reaction
Oxidant is passed through in device and is oxidized to ferric iron；, then need not be to anti-when being free of ferrous iron in hydrometallurgy iron-containing liquor
Answer and oxidant is passed through in device.Because when there is part ferrous iron in hydrometallurgy iron-containing liquor, oxidant, such as air/oxygen are passed through
Gas etc., will be ferrous oxidising into ferric iron in hydrometallurgy iron-containing liquor, removes simultaneously, the clearance of such iron can reach 90
~98%.
According to a kind of typical embodiment of the present invention, as shown in figure 1,65~100 DEG C are led to containing ferric solution 2
Cross the first homogenizing distributing device 11 and add one group of reactor with stirring, usual more than 2, be in the present embodiment the first reaction
It is gravity flow connection between first reactor 10 and second reactor 20, in first reactor 10 in device 10 and second reactor 20
In pass through the second homogenizing distributing device 12 simultaneously and add the nertralizer 1 such as limestone/lime/magnesia/zinc oxide/sodium hydroxide, will
Between the pH of reactor maintains 2.5~4,1.~3 hours reaction time.When in containing ferric solution 2 without ferrous iron, mistake
Oxidant need not be added in journey, when having part ferrous iron in containing ferric solution 2, can also be passed through oxidant, such as air/oxygen
Gas etc., removed simultaneously oxidation of ferrous iron to ferric iron, the clearance of iron can reach 90~98%.Reacted ore pulp directly enters
Concentrator 30 carries out separation of solid and liquid, and wherein thickener underflow 4 is the conventional high-performance thickener underflow concentration more than 35% containing scum,
Overflow 3 is solution after iron removaling, goes corresponding process to handle respectively.
Beneficial effects of the present invention are further illustrated below in conjunction with embodiment.
Embodiment 1
Using device as shown in Figure 1, ferric iron in iron-containing liquor after certain gold pressure pre-oxidation project pressure oxidation
15g/L, control ferric concentration in reactor to be less than 1g/L, and control pH=3~4 of solution in reactor, temperature 70 C,
Sulfuric acid 10g/L, using 4 iron precipitation by goethite process grooves (reactor), 2 hours reaction time, ferric concentration in solution after iron removaling
About 0.07g/L, iron removaling rate about 99%, thickener underflow concentration 40%.
Embodiment 2
Using device as shown in Figure 1, certain project copper-containing solution ferric iron 11g/L, control ferric dense in reactor
Degree is less than 1g/L, and controls pH=3~4 of solution in reactor, 80 DEG C, sulfuric acid 5g/L of temperature, using 3 iron precipitation by goethite process grooves
(reactor), 1.5 hours reaction time, ferric concentration about 0.05g/L in solution after iron removaling, iron removaling rate about 99% are dense
Machine underflow density 36%.
Embodiment 3
Using device as shown in Figure 1, to certain iron-containing liquor 6g/L in laboratory, ferric concentration in reactor is controlled
Less than 1g/L, and pH=3~4 of solution in reactor are controlled, 65 DEG C, sulfuric acid 2g/L of temperature the, using (reaction of iron precipitation by goethite process groove
Device), in 2.5 hours reaction time, ferric concentration about 0.3g/L in solution after iron removaling, iron removaling rate about 95%, separation of solid and liquid is dense
Close machine underflow density 35%.
Embodiment 4
Using device as shown in Figure 1, to certain iron-containing liquor 12g/L in laboratory, control ferric dense in reactor
Degree is less than 1g/L, and controls pH=2.5~4 of solution in reactor, 100 DEG C, sulfuric acid 2g/L of temperature, using iron precipitation by goethite process groove
(reactor), 1 hour reaction time, ferric concentration about 0.02g/L in solution after iron removaling, iron removaling rate about 99%, solid-liquid point
From thickener underflow concentration 45%.
As can be seen from the above description, the above embodiments of the present invention realize following technique effect：Pass through homogenizing
Hydrometallurgy iron-containing liquor is added in reactor by distributing device, directly can will be converted into goethite with ferric iron in solution and be sunk
Form sediment, turning for ferric oxide-ferrous oxide-ferric oxide is carried out without adding a large amount of reducing agents and oxidant as prior art
Change, returned without crystal seed, saved operating cost, such a method precipitates easy separation of solid and liquid, and thickener underflow concentration can reach
More than 35%, reduce the entrainment of valuable metal in underflow ore pulp, improve the rate of recovery of valuable metal than iron.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (5)
- A kind of 1. device of iron removaling in hydrometallurgy iron-containing liquor, it is characterised in that including：First homogenizing distributing device, for hydrometallurgy iron-containing liquor to be added in reactor；The reactor, for the iron reaction generation goethite in the hydrometallurgy iron-containing liquor；AndConcentrator, for the goethite generated in the reactor to be removed by separation of solid and liquid.
- 2. device according to claim 1, it is characterised in that also including the second homogenizing distributing device, for nertralizer to be added Enter to the reactor.
- 3. device according to claim 1, it is characterised in that the first homogenizing distributing device is even-dispersing device.
- 4. device according to claim 1, it is characterised in that the reactor is the reactor with agitating function.
- 5. device according to claim 1, it is characterised in that the reactor to be multiple, and multiple reactors it Between for gravity flow connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711120629.XA CN107858509A (en) | 2017-11-13 | 2017-11-13 | The device of iron removaling in hydrometallurgy iron-containing liquor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711120629.XA CN107858509A (en) | 2017-11-13 | 2017-11-13 | The device of iron removaling in hydrometallurgy iron-containing liquor |
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| CN107858509A true CN107858509A (en) | 2018-03-30 |
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| CN201711120629.XA Pending CN107858509A (en) | 2017-11-13 | 2017-11-13 | The device of iron removaling in hydrometallurgy iron-containing liquor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019090759A1 (en) * | 2017-11-13 | 2019-05-16 | 中国恩菲工程技术有限公司 | Method and apparatus for removing iron from hydrometallurgical iron-containing solution |
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|---|---|---|---|---|
| CN1337360A (en) * | 2000-08-15 | 2002-02-27 | 汕头恒昌化工有限公司 | Method of preparing cobelt chloride with colbalt slag containing Fe and Mg |
| CN1384214A (en) * | 2001-04-29 | 2002-12-11 | 路远 | Carbon reducting roast process of producing RE chloride with mixed RE concentrate |
| CN102066589A (en) * | 2008-06-25 | 2011-05-18 | Bhp比利通Ssm开发有限公司 | Iron precipitation |
| CN201942724U (en) * | 2010-11-17 | 2011-08-24 | 紫金矿业集团股份有限公司 | Deironing test device by goethite process |
| CN102181638A (en) * | 2011-04-30 | 2011-09-14 | 广西师范大学 | Method for removing iron from leachate of nickel oxide ores |
| CN103740931A (en) * | 2014-01-21 | 2014-04-23 | 江苏仁欣化工股份有限公司 | Method for precipitating iron from goethite containing ferro-nickel mixed solution |
| CN105110364A (en) * | 2015-09-29 | 2015-12-02 | 卢润湖 | Method for preparing zinc sulfate |
| CN105695745A (en) * | 2016-02-02 | 2016-06-22 | 广州中科正川环保科技有限公司 | Comprehensive recovery process of low-grade matte slag metal resources |
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2017
- 2017-11-13 CN CN201711120629.XA patent/CN107858509A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1337360A (en) * | 2000-08-15 | 2002-02-27 | 汕头恒昌化工有限公司 | Method of preparing cobelt chloride with colbalt slag containing Fe and Mg |
| CN1384214A (en) * | 2001-04-29 | 2002-12-11 | 路远 | Carbon reducting roast process of producing RE chloride with mixed RE concentrate |
| CN102066589A (en) * | 2008-06-25 | 2011-05-18 | Bhp比利通Ssm开发有限公司 | Iron precipitation |
| CN201942724U (en) * | 2010-11-17 | 2011-08-24 | 紫金矿业集团股份有限公司 | Deironing test device by goethite process |
| CN102181638A (en) * | 2011-04-30 | 2011-09-14 | 广西师范大学 | Method for removing iron from leachate of nickel oxide ores |
| CN103740931A (en) * | 2014-01-21 | 2014-04-23 | 江苏仁欣化工股份有限公司 | Method for precipitating iron from goethite containing ferro-nickel mixed solution |
| CN105110364A (en) * | 2015-09-29 | 2015-12-02 | 卢润湖 | Method for preparing zinc sulfate |
| CN105695745A (en) * | 2016-02-02 | 2016-06-22 | 广州中科正川环保科技有限公司 | Comprehensive recovery process of low-grade matte slag metal resources |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019090759A1 (en) * | 2017-11-13 | 2019-05-16 | 中国恩菲工程技术有限公司 | Method and apparatus for removing iron from hydrometallurgical iron-containing solution |
| US11021772B2 (en) | 2017-11-13 | 2021-06-01 | China Enfi Engineering Corporation | Method and device for removing iron in iron-containing solution in hydrometallurgy |
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Application publication date: 20180330 |