CN105821208A - Method for reducing and lixiviating zinc containing material by sulfur dioxide - Google Patents
Method for reducing and lixiviating zinc containing material by sulfur dioxide Download PDFInfo
- Publication number
- CN105821208A CN105821208A CN201610188394.7A CN201610188394A CN105821208A CN 105821208 A CN105821208 A CN 105821208A CN 201610188394 A CN201610188394 A CN 201610188394A CN 105821208 A CN105821208 A CN 105821208A
- Authority
- CN
- China
- Prior art keywords
- material containing
- containing zinc
- zinc
- sulfur dioxide
- sulphur dioxide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
- C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
-
- 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
- C22B19/00—Obtaining zinc or zinc oxide
- C22B19/20—Obtaining zinc otherwise than by distilling
- C22B19/22—Obtaining zinc otherwise than by distilling with leaching with acids
-
- 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
-
- 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 method for reducing and lixiviating zinc containing material by sulfur dioxide. The method comprises the following steps: adding the zinc containing material into an acid lixiviant to lixiviate the zinc containing material by the acid lixiviant; in the process of lixiviating, introducing sulfur dioxide through the mixture of the acid lixiviant and the zinc containing material to realize reduction and lixiviation by sulfur dioxide. The method in the embodiment of the invention achieves the advantages of high zinc and ferrum lixiviation rate, low slag rate and high adaptability to raw materials, i.e. the method is suitable for processing various zinc containing materials; the method can reduce the possibility that organics and foreign ions enter the system, achieves the advantages of no elemental sulfur and high lead/silver enrichment degree, also can optimize the subsequent technical flow and reduce equipment investment and energy consumption.
Description
Technical field
The present invention relates to field of metallurgy, in particular to the method utilizing sulphur dioxide reduction to leach material containing zinc.
Background technology
The processing method of material containing zinc has been summed up following several: zinc sulfide concentrates reducing process, rotary kiln fuming process, selecting smelting combination method, hot acid leach heavy iron processes, melting extraction, chlorination fuming process etc..In the hydrometallurgy of existing zinc, the Zn content of zinc leaching residue is high, if using the equipment such as rotary kiln to process zinc leaching residue, operating environment is bad, belongs to and falls behind technique on the verge of being replaced.Process zinc leaching residue if, with side-blown converter, face the problem that energy consumption is high.
Patent application introduction according to Application No. 201110286158.6, zinc sulfide concentrates reducing leaching, due to the addition of zinc sulfide, after causing reduction, liquid Zn content is high, reach 100～110g/L, back segment bloodstone workshop section will be caused to be difficult to down because fouling is serious.And, zinc sulfide concentrates reduces, and there is also that slag rate is relatively big, bring organic defect into, if the elemental sulfur separated in slag, then faces the problem such as prolongation of the increase of equipment, technique.
Summary of the invention
It is contemplated that one of technical problem solved the most to a certain extent in correlation technique.To this end, the present invention proposes a kind of have that zinc and ferrum leaching rate are high, slag rate is little, without elemental sulfur, the method utilizing sulphur dioxide reduction to leach material containing zinc of the advantage reducing equipment investment and energy resource consumption.
The method utilizing sulphur dioxide reduction to leach material containing zinc according to embodiments of the present invention comprises the following steps: joined by material containing zinc in acid lixiviant, in order to utilize described acid lixiviant to leach described material containing zinc；With during carrying out described leaching, in the mixture of described acid lixiviant and described material containing zinc, it is passed through sulfur dioxide, in order to carry out sulphur dioxide reduction leaching.
It addition, the method utilizing sulphur dioxide reduction to leach material containing zinc according to the above embodiment of the present invention can also have a following additional technical characteristic:
According to one embodiment of present invention, described material containing zinc is that zinc calcine is through neutralizing the weak acid slag leaching and obtaining after weak-acid leaching.
According to one embodiment of present invention, described material containing zinc comprises the zinc of 5wt%-45wt% and the ferrum of 5wt%-45wt%.
According to one embodiment of present invention, described acid lixiviant is zinc electrolytic waste liquid, the initial acidity of the mixture of described acid lixiviant and described material containing zinc is 80g/L-140g/L, and the volume mass of described acid lixiviant and described material containing zinc is than for 5L/kg-10L/kg.
According to one embodiment of present invention, described zinc electrolytic waste liquid comprises the sulphuric acid of 90g/L-200g/L and the zinc of 20g/L-150g/L.
According to one embodiment of present invention, the described method utilizing sulphur dioxide reduction to leach material containing zinc comprises the following steps: joined by described material containing zinc in described acid lixiviant, and it is passed through sulfur dioxide in the mixture of described acid lixiviant and described material containing zinc, under conditions of 80 DEG C-110 DEG C, carry out sulphur dioxide reduction leaching；Temperature is increased to 110 DEG C-150 DEG C and stops being passed through sulfur dioxide in the mixture of described acid lixiviant and described material containing zinc, so as parsing sulfur dioxide, continue with described acid lixiviant and leach described material containing zinc, in order to obtain sulphur dioxide reduction leachate；The tail gas that tower washing reaction device is discharged, this tail gas return acid making system recovery sulfur dioxide gas is washed with utilizing sulfur dioxide.
According to one embodiment of present invention, described sulphur dioxide reduction leaches and carries out 1 hour-4 hours, after stopping being passed through sulfur dioxide, continues with described acid lixiviant and leaches described material containing zinc persistently 1 hour-4 hours.
According to one embodiment of present invention, joining in hermetic container by described material containing zinc, described acid lixiviant and described sulfur dioxide, when carrying out described sulphur dioxide reduction and leaching, the pressure in described hermetic container is maintained at 0.1Mpa-0.5Mpa.
According to one embodiment of present invention, 0.6-3.0 times of the theoretical amount of the Fe during the addition of described sulfur dioxide is the described material containing zinc of reduction.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the description of described embodiment is intended to for explaining the present invention, and is not considered as limiting the invention.
The invention provides a kind of method utilizing sulphur dioxide reduction to leach material containing zinc.The method utilizing sulphur dioxide reduction to leach material containing zinc according to embodiments of the present invention comprises the following steps:
Material containing zinc is joined in acid lixiviant, in order to utilize this acid lixiviant to leach this material containing zinc；With
During carrying out this leaching, in the mixture of this acid lixiviant and this material containing zinc, it is passed through sulfur dioxide, in order to carry out sulphur dioxide reduction leaching.
Present invention firstly provides the reducing leaching that sulfur dioxide is used for material containing zinc, i.e. sulfur dioxide and be used as reducing agent, it is achieved that zinc, ferrum, the efficient leaching of indium, wherein total leaching rate of zinc is 97%-99%, and total leaching rate of ferrum is 91%-97%.
Specifically, ferrum oxide and Indium sesquioxide. in this zinc leaching residue are entered solution (reducing leaching liquid) by the iron sulfate of this acid lixiviant dissolving generation solubility and the indium sulfate of solubility, zinc ferrite in this zinc leaching residue is decomposed to leach and generates zinc sulfate and iron sulfate entrance solution (reducing leaching liquid), this iron sulfate, under the effect of reducing agent sulfur dioxide, is reduced to the ferrous sulfate of bivalence.
Existing from zinc sulfide concentrates roasting, leach, extract zinc method, directly leaching be all that zinc sulfide concentrates carries out zinc-iron separation, leaching zinc and except ferrum divides two processes to complete, and zinc enters main system mixing recovery.Ferrum is stayed in leached mud, use pyrogenic attack mode except ferrum；Make ferrum enter leachate, use wet treatment mode (jarosite process or goethite process) except ferrum.There is technological process long, the problems such as iron removal is complicated.
But, in the present invention, one section of sulphur dioxide reduction leaching process reaches the ferric purpose of Leaching Zinc, ferrum and reduction simultaneously, optimizes follow-up technological process, reduces equipment investment and energy resource consumption.Therefore, the method utilizing sulphur dioxide reduction to leach material containing zinc according to embodiments of the present invention simplifies technological process, decreases Organic substance and enters system.
And, carry out with reduction owing to sulphur dioxide reduction leaching process leaches simultaneously, after zinc ferrite decomposes, ferric iron is reduced to rapidly ferrous iron, therefore the kinetic balance that zinc ferrite decomposes is broken, such that it is able to be greatly enhanced total leaching rate of zinc and ferrum, total leaching rate of zinc is 97%-99%, and total leaching rate of ferrum is 91%-97%.
Additionally, compared with existing zinc sulfide concentrates reducing leaching, the method utilizing sulphur dioxide reduction to leach material containing zinc according to embodiments of the present invention also have slag rate little, without elemental sulfur, lead silver enrichment degree advantages of higher.
Therefore, the method utilizing sulphur dioxide reduction to leach material containing zinc according to embodiments of the present invention has that zinc and ferrum leaching rate are high, slag rate is little, adaptability to raw material strong (being applicable to the process of all kinds of material containing zinc), reduce Organic substance enter system, without elemental sulfur, lead silver enrichment degree advantages of higher, follow-up technological process can be optimized, reduce equipment investment and energy resource consumption.
The method utilizing sulphur dioxide reduction to leach material containing zinc according to embodiments of the present invention is especially suitable for leaching the material containing zinc that iron content is high, is ferrous iron by ferric iron back, in order to further except ferrum.
In some embodiments of the invention, the method utilizing sulphur dioxide reduction to leach material containing zinc according to embodiments of the present invention comprises the following steps:
This material containing zinc is joined in this acid lixiviant, and is passed through sulfur dioxide in the mixture of this acid lixiviant and this material containing zinc, under conditions of 80 DEG C-110 DEG C, carry out sulphur dioxide reduction leaching；With
Temperature it is increased to 110 DEG C-150 DEG C and stops being passed through sulfur dioxide in the mixture of this acid lixiviant and this material containing zinc, continuing with this acid lixiviant and leach this material containing zinc, in order to obtain sulphur dioxide reduction leachate；With
Utilizing the tail gas that sulfur dioxide scrubbing tower washing leaching device is discharged, after washing, tail gas returns acid making system and reclaims sulfur dioxide gas.
Advantageously, this material containing zinc is that zinc calcine is through neutralizing the weak acid slag leaching and obtaining after weak-acid leaching.Wherein, this material containing zinc comprises the zinc of 5wt%-45wt% and the ferrum of 5wt%-45wt%.Specifically, this zinc calcine leaches through this neutralization and obtains neutralizing leached mud, and this neutralization leached mud obtains weak acid slag through this weak-acid leaching.This neutralization is leached and this weak-acid leaching can be that known and with the present invention inventive point is unrelated, the most no longer describes in detail.
The initial acidity of the mixture of this acid lixiviant and this material containing zinc is 80g/L-140g/L.It is to say, the concentration of the sulphuric acid in the mixture of this acid lixiviant and this material containing zinc can be 80g/L-140g/L.The volume mass of this acid lixiviant and this material containing zinc is than for 5L/kg-10L/kg.In other words, every kilogram of this acid lixiviant of this material containing zinc and 5L-10L mixes.
Preferably, the initial acidity of the mixture of this acid lixiviant and this material containing zinc is 100g/L-120g/L, and the volume mass of this acid lixiviant and this material containing zinc ratio is for 6L/kg-8L/kg.Wherein, this acid lixiviant can be zinc electrolytic waste liquid, and this zinc electrolytic waste liquid comprises the sulphuric acid of 90g/L-200g/L and the zinc of 20g/L-150g/L.In other words, the concentration of the sulphuric acid in this zinc electrolytic waste liquid be 90g/L-200g/L, zinc concentration be 20g/L-150g/L.
In one embodiment of the invention, this material containing zinc, this acid lixiviant and this sulfur dioxide are joined in hermetic container, in order to carry out this sulphur dioxide reduction leaching in a sealed meter environment.Thus can efficiently control the uncontrollable discharge of sulfur dioxide, improve the utilization rate of sulfur dioxide.
Advantageously, when carrying out this sulphur dioxide reduction and leaching, the pressure in this hermetic container is maintained at 0.1Mpa-0.5Mpa.
As it has been described above, the reducing leaching of this material containing zinc includes two stages.In first stage, in the mixture of this acid lixiviant and this material containing zinc, it is passed through sulfur dioxide, in second stage, stops being passed through sulfur dioxide in the mixture of this acid lixiviant and this material containing zinc.Wherein, in second stage, the sulfur dioxide being dissolved in this acid lixiviant gradually separates out.
It is to say, during the reducing leaching of this material containing zinc, have the resolving of a sulfur dioxide.In the resolving of sulfur dioxide, it is key point that temperature controls.Because at different temperature, the precipitation rate of sulfur dioxide is different.
In some examples of the present invention, this sulphur dioxide reduction leaches and carries out 1 hour-4 hours.In other words, in the mixture of this acid lixiviant and this material containing zinc, it is passed through sulfur dioxide and continues 1 hour-4 hours.After stopping being passed through sulfur dioxide, continue with this acid lixiviant and leach this material containing zinc persistently 1 hour-4 hours, in order to obtain reducing leaching liquid and reducing leaching slag.
Preferably, this sulphur dioxide reduction leaches and carries out 2 hours-3 hours, after stopping being passed through sulfur dioxide, continues with this acid lixiviant and leaches this material containing zinc persistently 1 hour-2 hours.
Advantageously, 1.5-3.0 times of the theoretical amount of the Fe during the addition of this sulfur dioxide is this material containing zinc of reduction.Thus can reduce ferric ion fully.
Embodiment 1
By the ferrum containing 37.37wt%, the material containing zinc 5.7kg of the zinc of 18.18wt%, join in the zinc waste electrolyte of 29L.This zinc waste electrolyte is as acid lixiviant, and the zinc concentration in this zinc waste electrolyte is 53g/L, the concentration of sulphuric acid is 158g/L.
In the mixture of this zinc waste electrolyte and this material containing zinc, add 400L sulfur dioxide leach as reducing agent, the sulphur dioxide reduction at a temperature of 100 DEG C, this material containing zinc carried out 1 hour.It is to say, sulfur dioxide joins in the mixture of this zinc waste electrolyte and this material containing zinc according to the flow of 400L/ hour.
Then, continue with this acid lixiviant and at a temperature of 110 DEG C, leach this material containing zinc and continue 1 hour, obtain 43L leachate (i.e. sulphur dioxide reduction leachate).Finally, utilizing the tail gas that sulfur dioxide scrubbing tower washing leaching device is discharged, after washing, tail gas returns acid making system and reclaims sulfur dioxide gas.
Wherein, the zinc concentration in this leachate be 100.34g/L, ferric concentration be 0.10g/L, ferrous concentration be 54.80g/L, the concentration of sulphuric acid be 29.96g/L.In this embodiment, the leaching rate of zinc is 98.02%, and the leaching rate of ferrum is 95.72%, and finishing slag slag rate is 7.0wt%, reducing leaching slag 4.0wt% on zinc.
Embodiment 2
By the ferrum containing 37.37wt%, the material containing zinc 5.0kg of the zinc of 18.18wt% and 3.8L water, join in the zinc waste electrolyte of 28.7L.This zinc waste electrolyte is as acid lixiviant, and the zinc concentration in this zinc waste electrolyte is 49g/L, the concentration of sulphuric acid is 155g/L.
In the mixture of this zinc waste electrolyte and this material containing zinc, add 475L sulfur dioxide leach as reducing agent, the sulphur dioxide reduction at a temperature of 125 DEG C, this material containing zinc carried out 2 hours.It is to say, sulfur dioxide joins in the mixture of this zinc waste electrolyte and this material containing zinc according to the flow of 237.5L/ hour.
Then, continue with this acid lixiviant and at a temperature of 150 DEG C, leach this material containing zinc and continue 2 hours, obtain 40L leachate.Finally, utilizing the tail gas that sulfur dioxide scrubbing tower washing leaching device is discharged, after washing, tail gas returns acid making system and reclaims sulfur dioxide gas,.
Wherein, the zinc concentration in this leachate be 88.9g/L, ferric concentration be 1.09g/L, ferrous concentration be 32.46g/L, the concentration of sulphuric acid be 52.8g/L.In this embodiment, the leaching rate of zinc is 98.24%, and the leaching rate of ferrum is 96.06%, and finishing slag slag rate is 9.0wt%, reducing leaching slag 3.5wt% on zinc.
Embodiment 3
By the ferrum containing 37.37wt%, the material containing zinc 5.0kg of the zinc of 18.18wt% and 7.3L water, join in the zinc waste electrolyte of 25.5L.This zinc waste electrolyte is as acid lixiviant, and the zinc concentration in this zinc waste electrolyte is 49g/L, the concentration of sulphuric acid is 155g/L.
In the mixture of this zinc waste electrolyte and this material containing zinc, add 544L sulfur dioxide leach as reducing agent, the sulphur dioxide reduction at a temperature of 150 DEG C, this material containing zinc carried out 4 hours.It is to say, sulfur dioxide joins in the mixture of this zinc waste electrolyte and this material containing zinc according to the flow of 136L/ hour.
Then, continue with this acid lixiviant and at a temperature of 130 DEG C, leach this material containing zinc and continue 4 hours, obtain 40L leachate.Finally, utilizing the tail gas that scrubbing tower washing leaching device is discharged, after washing, tail gas returns acid making system and reclaims sulfur dioxide gas.
Wherein, the zinc concentration in this leachate be 82.57g/L, ferric concentration be 1.20g/L, ferrous concentration be 47.00g/L, the concentration of sulphuric acid be 27.95g/L.In this embodiment, the leaching rate of zinc is 97.38%, and the leaching rate of ferrum is 91.30%, and finishing slag slag rate is 7.5wt%, reducing leaching slag 3.8wt% on zinc.
In describing the invention, it is to be understood that term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or implicitly include at least one this feature.In describing the invention, " multiple " are meant that at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " is installed ", " being connected ", " connection ", the term such as " fixing " should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or integral；Can be mechanically connected, it is also possible to be electrical connection or each other can communication；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be connection or the interaction relationship of two elements of two element internals, unless otherwise clear and definite restriction.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or be merely representative of fisrt feature level height higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height less than second feature.
In the description of this specification, the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means that the specific features, structure, material or the feature that combine this embodiment or example description are contained at least one embodiment or the example of the present invention.In this manual, the schematic representation of above-mentioned term is necessarily directed to identical embodiment or example.And, the specific features of description, structure, material or feature can be to combine in one or more embodiments in office or example in an appropriate manner.Additionally, in the case of the most conflicting, the feature of the different embodiments described in this specification or example and different embodiment or example can be combined and combine by those skilled in the art.
Although above it has been shown and described that embodiments of the invention, it is understandable that, above-described embodiment is exemplary, it is impossible to be interpreted as limitation of the present invention, and above-described embodiment can be changed, revises, replace and modification by those of ordinary skill in the art within the scope of the invention.
Claims (9)
1. one kind utilizes the method that sulphur dioxide reduction leaches material containing zinc, it is characterised in that comprise the following steps:
Material containing zinc is joined in acid lixiviant, in order to utilize described acid lixiviant to leach described material containing zinc；With
During carrying out described leaching, in the mixture of described acid lixiviant and described material containing zinc, it is passed through sulfur dioxide, in order to carry out sulphur dioxide reduction leaching.
The method utilizing sulphur dioxide reduction to leach material containing zinc the most according to claim 1, it is characterised in that described material containing zinc is that zinc calcine is through neutralizing the weak acid slag leaching and obtaining after weak-acid leaching.
The method utilizing sulphur dioxide reduction to leach material containing zinc the most according to claim 1 and 2, it is characterised in that described material containing zinc comprises the zinc of 5wt%-45wt% and the ferrum of 5wt%-45wt%.
The method utilizing sulphur dioxide reduction to leach material containing zinc the most according to claim 1, it is characterized in that, described acid lixiviant is zinc electrolytic waste liquid, the initial acidity of the mixture of described acid lixiviant and described material containing zinc is 80g/L-140g/L, and the volume mass of described acid lixiviant and described material containing zinc is than for 5L/kg-10L/kg.
The method utilizing sulphur dioxide reduction to leach material containing zinc the most according to claim 4, it is characterised in that described zinc electrolytic waste liquid comprises the sulphuric acid of 90g/L-200g/L and the zinc of 20g/L-150g/L.
The method utilizing sulphur dioxide reduction to leach material containing zinc the most according to claim 1, it is characterised in that comprise the following steps:
Described material containing zinc is joined in described acid lixiviant, and is passed through sulfur dioxide in the mixture of described acid lixiviant and described material containing zinc, under conditions of 80 DEG C-110 DEG C, carry out sulphur dioxide reduction leaching；
Temperature is increased to 110 DEG C-150 DEG C and stops being passed through sulfur dioxide in the mixture of described acid lixiviant and described material containing zinc, so as parsing sulfur dioxide, continue with described acid lixiviant and leach described material containing zinc, in order to obtain sulphur dioxide reduction leachate；With
Utilizing sulfur dioxide to wash the tail gas that tower washing reaction device is discharged, this tail gas returns acid making system and reclaims sulfur dioxide gas.
The method utilizing sulphur dioxide reduction to leach material containing zinc the most according to claim 6, it is characterized in that, described sulphur dioxide reduction leaches and carries out 1 hour-4 hours, after stopping being passed through sulfur dioxide, continues with described acid lixiviant and leaches described material containing zinc persistently 1 hour-4 hours.
The method utilizing sulphur dioxide reduction to leach material containing zinc the most according to claim 6, it is characterized in that, described material containing zinc, described acid lixiviant and described sulfur dioxide are joined in hermetic container, when carrying out described sulphur dioxide reduction and leaching, the pressure in described hermetic container is maintained at 0.1Mpa-0.5Mpa.
The method utilizing sulphur dioxide reduction to leach material containing zinc the most according to claim 1, it is characterised in that the addition of described sulfur dioxide is 0.6-3.0 times of the theoretical amount of the Fe in the described material containing zinc of reduction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610188394.7A CN105821208A (en) | 2016-03-29 | 2016-03-29 | Method for reducing and lixiviating zinc containing material by sulfur dioxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610188394.7A CN105821208A (en) | 2016-03-29 | 2016-03-29 | Method for reducing and lixiviating zinc containing material by sulfur dioxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105821208A true CN105821208A (en) | 2016-08-03 |
Family
ID=56525027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610188394.7A Pending CN105821208A (en) | 2016-03-29 | 2016-03-29 | Method for reducing and lixiviating zinc containing material by sulfur dioxide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105821208A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108330281A (en) * | 2018-03-16 | 2018-07-27 | 云锡文山锌铟冶炼有限公司 | Zinc abstraction reducing leaching device |
| CN111876612A (en) * | 2020-07-14 | 2020-11-03 | 矿冶科技集团有限公司 | Method for treating zinc-iron-containing acidic solution |
| CN113136488A (en) * | 2021-04-22 | 2021-07-20 | 中化化工科学技术研究总院有限公司 | Wet treatment process for iron vitriol slag in zinc hydrometallurgy |
| CN114672663A (en) * | 2022-03-11 | 2022-06-28 | 云南云铜锌业股份有限公司 | Wet zinc smelting method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008081766A (en) * | 2006-09-26 | 2008-04-10 | Dowa Holdings Co Ltd | Wet treatment method for zinc leaching residue |
| CN101886272A (en) * | 2010-01-08 | 2010-11-17 | 中南大学 | Method for extracting indium and preparing iron oxide by slag-free zinc hydrometallurgy of zinc concentrate |
| CN102352445A (en) * | 2011-09-23 | 2012-02-15 | 来宾华锡冶炼有限公司 | Zinc leached residue hot acid reduction leaching method |
| CN103526024A (en) * | 2013-10-23 | 2014-01-22 | 北京矿冶研究总院 | Novel clean environment-friendly comprehensive recovery process for high-indium high-iron zinc concentrate |
| CN103540765A (en) * | 2013-10-12 | 2014-01-29 | 中南大学 | Zinc smelting technology |
| CN105316493A (en) * | 2015-11-27 | 2016-02-10 | 中南大学 | Zinc hydrometallurgical process |
-
2016
- 2016-03-29 CN CN201610188394.7A patent/CN105821208A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008081766A (en) * | 2006-09-26 | 2008-04-10 | Dowa Holdings Co Ltd | Wet treatment method for zinc leaching residue |
| CN101886272A (en) * | 2010-01-08 | 2010-11-17 | 中南大学 | Method for extracting indium and preparing iron oxide by slag-free zinc hydrometallurgy of zinc concentrate |
| CN102352445A (en) * | 2011-09-23 | 2012-02-15 | 来宾华锡冶炼有限公司 | Zinc leached residue hot acid reduction leaching method |
| CN103540765A (en) * | 2013-10-12 | 2014-01-29 | 中南大学 | Zinc smelting technology |
| CN103526024A (en) * | 2013-10-23 | 2014-01-22 | 北京矿冶研究总院 | Novel clean environment-friendly comprehensive recovery process for high-indium high-iron zinc concentrate |
| CN105316493A (en) * | 2015-11-27 | 2016-02-10 | 中南大学 | Zinc hydrometallurgical process |
Non-Patent Citations (1)
| Title |
|---|
| 郭天立摘译: ""饭岛锌精炼厂最近的生产"", 《有色冶炼》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108330281A (en) * | 2018-03-16 | 2018-07-27 | 云锡文山锌铟冶炼有限公司 | Zinc abstraction reducing leaching device |
| CN111876612A (en) * | 2020-07-14 | 2020-11-03 | 矿冶科技集团有限公司 | Method for treating zinc-iron-containing acidic solution |
| CN113136488A (en) * | 2021-04-22 | 2021-07-20 | 中化化工科学技术研究总院有限公司 | Wet treatment process for iron vitriol slag in zinc hydrometallurgy |
| CN114672663A (en) * | 2022-03-11 | 2022-06-28 | 云南云铜锌业股份有限公司 | Wet zinc smelting method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101660054B (en) | Method for extracting metal indium from waste residues generated from lead and zinc smelting | |
| CN106868306B (en) | A kind of method of zinc leaching residue valuable metal high efficiente callback | |
| CN102094126B (en) | Process for smelting zinc with wet method of high temperature and high acid-jarosite iron removing-iron vitriol slag pickling by two stages | |
| CN101509070B (en) | Method for acid leaching extraction of vanadium from vanadium-containing raw material | |
| CN105821208A (en) | Method for reducing and lixiviating zinc containing material by sulfur dioxide | |
| CN106916945B (en) | A kind of method of the integrated treatment recycling valuable metal of the low germanium zinc-oxide calcine of high-speed rail and zinc sulfite | |
| CN105838904B (en) | The method for removing the copper arsenic in material containing zinc sulphur dioxide reduction leachate | |
| CN105349803A (en) | Method for separating tungsten and molybdenum from molybdenum-contained phosphotungstic acid/phosphowolframate solution | |
| CN108277355A (en) | A kind of step extraction of titanium white waste acid valuable metal and method of comprehensive utilization | |
| CN108467942A (en) | A method of Selectively leaching zinc, lead, gallium and germanium from zinc replacement slag | |
| CN101585553A (en) | Method for producing vanadium pentoxide by ore containing vanadium and intermediate material containing vanadium | |
| CN102168181B (en) | Horizontal type pressure leaching kettle and zinc sulfide concentrate leaching method using same | |
| CN103952572A (en) | Method for optimizing zinc hydrometallurgy hot acid leaching process by pressure leaching | |
| CN107557579B (en) | A method of extraction and separation antimony, iron from acid complicated antimony-containing solution | |
| CN104846196A (en) | Process for improving leaching rate of copper in earthy copper deposit by using heat released by concentrated sulfuric acid | |
| CN105907972B (en) | A kind of method of a variety of valuable metals of the synthetical recovery from electroplating sludge | |
| CN105483362B (en) | A kind of zinc oxide fumes multi-stage countercurrent continuously rinses the technique and device of dechlorination | |
| CN112239808B (en) | Method for extracting vanadium from vanadium-containing high-calcium high-phosphorus slag | |
| CN105695752A (en) | Method for recycling indium from indium containing material produced during zinc smelting | |
| CN107555476B (en) | A method of sb oxide is directly prepared with acid complicated antimony-containing solution | |
| CN107746965B (en) | A kind of method of germanium vacuum distillation slag recovery indium germanium | |
| CN106893862A (en) | A kind of processing method of zinc leaching residue | |
| CN104946897A (en) | Method for treating steel plant zinc-containing smoke dust through wet process to realize enrichment of zinc sulfide concentrate | |
| CN112899483B (en) | Method for selectively extracting and separating vanadium from vanadium-molybdenum waste residues | |
| CN111057875B (en) | Method for separating vanadium and chromium from solution by using microemulsion |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160803 |
|
| RJ01 | Rejection of invention patent application after publication |