CN105695752A - Method for recycling indium from indium containing material produced during zinc smelting - Google Patents
Method for recycling indium from indium containing material produced during zinc smelting Download PDFInfo
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- CN105695752A CN105695752A CN201610187701.XA CN201610187701A CN105695752A CN 105695752 A CN105695752 A CN 105695752A CN 201610187701 A CN201610187701 A CN 201610187701A CN 105695752 A CN105695752 A CN 105695752A
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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
- C22B7/006—Wet processes
- C22B7/007—Wet processes by acid leaching
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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
- C22B58/00—Obtaining gallium or indium
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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
Abstract
The invention discloses a method for recycling indium from an indium containing material produced during zinc smelting. The method for recycling indium from an indium containing material produced during zinc smelting comprises the following steps: carrying out reduction leaching on the indium containing material so as to obtain reduction leach liquor; precipitating indium through carrying out neutralization and hydrolysis on the reduction leach liquor by utilizing a limestone powder emulsion so as to obtain an iron-containing solution and first gypsum dregs rich in indium; under acid conditions, leaching indium from the first gypsum dregs so as to obtain a solution rich in indium and second gypsum dregs; reducing Cu<2+> in the solution rich in indium into elementary Cu, and reducing Fe<3+> into Fe<2+> so as to obtain reduced liquor; utilizing charcoal powder to carry out purification and impurity removal treatment on the reduced liquor so as to obtain a purified solution; and extracting the purified solution. The method for recycling indium from the indium containing material produced during zinc smelting of the embodiment has the advantages of being free of arsenic hydride or emulsion phenomena, being high in indium recycling rate, being simple in process, being low in production cost and the like.
Description
Technical field
The present invention relates to field of metallurgy, in particular to from zinc abstraction containing the method for recovery indium in indium material。
Background technology
Some materials containing indium of output in Zinc Hydrometallurgy Process, such as containing indium cadmia, rotary kiln containing indium flue dust, these materials, containing indium flue dust etc., for the indium in these materials of synthetical recovery, are carried out hot acid leaching, then extract indium from solution further by blast furnace ironmaking。
Indium grade containing indium material is typically in 200g/t-1000g/t, and therefore the indium concentration in leachate is relatively low。Processing method currently for this kind of low solution of indium has two kinds, and the first is to be made directly extracting and enriching indium, but solution-treated amount is big, and indium loss amount is big；The second is to use nertralizer to be neutralized the heavy indium of hydrolysis, is enriched in by indium in indium slag, the high-grade indium slag of output, then this high-grade In residue carries out acidic leaching with recovery indium。
Therefore, the selection for nertralizer is most important, is directly connected to the recycled in its entirety rate of production cost and indium。At present, commonplace nertralizer is used to have zinc powder, oxide powder and zinc, zinc founding scum silica frost, calcining etc.。Zinc powder easily produces arsine gas with heavy indium under the environment of acidic arsenic-containing, there is security risk, and zinc powder processing cost is high。With heavy indium in oxide powder and zinc, oxide powder and zinc purchase cost is high。With heavy indium in zinc founding scum silica frost, a large amount of chloride ion can be brought into system。With heavy indium in calcining, not only bring a large amount of impurity element of solution into, affect indium extraction process, and indium slag indium leaching rate is low。
Application number be 200910306241.8 patent application disclose a kind of method that non-volatile extracts zinc, ferrum, indium from zinc-iron solution of indium, main technological route is: in zinc-iron solution of indium zinc oxide and heavy indium → indium slag sulfuric acid leaching → leachate indium extractions → extract send back extraction, displacement, electrolysis etc. to extract return leaching system after the heavy ferrum of indium → raffinate, heavy zinc further。Application number be 201210050009.4 patent application disclose a kind of method that oxygen pressure extracts indium from rich indium flue dust, its main technological route carries out indium extraction, back extraction Enrichment Indium → strip liquor indium displacement, founding, electrolysis → raffinate sulfide precipitation valuable metal post processing qualified discharge for rich indium flue dust oxygen pressure acidleach → leachate sulfuration remove impurity → remove impurity liquid。These methods all achieve the synthetical recovery of indium, but technological process is tediously long, cause that indium loss is big, and indium recovery is low, and production cost is high, and are difficult to all the time solve the emulsification problem in extraction process。
Summary of the invention
It is contemplated that one of technical problem solved at least to a certain extent in correlation technique。For this, the present invention propose a kind of have do not produce arsenic hydride, do not produce emulsion, advantage that indium recovery is high from zinc abstraction containing the method for recovery indium indium material。
Comprising the following steps containing the method for recovery indium indium material from zinc abstraction according to embodiments of the present invention: carry out reducing leaching to containing indium material, in order to obtain reducing leaching liquid；Utilize agstone emulsion that described reducing leaching liquid is neutralized the heavy indium of hydrolysis, in order to obtain the first gypsum tailings of iron-containing liquor and Enrichment Indium；In acid condition the indium in described first gypsum tailings is leached, in order to obtain rich solution of indium and the second gypsum tailings；By the Fe in described rich solution of indium3+It is reduced to Fe2+, in order to liquid after being reduced；Utilize charcoal powder that liquid after described reduction is carried out purification and impurity removal process, in order to be purified liquid；Extract with to described scavenging solution。
Following additional technical characteristic can also be had from zinc abstraction containing the method for recovery indium indium material it addition, according to the above embodiment of the present invention:
According to one embodiment of present invention, the acidity of described reducing leaching liquid is 3g/L-5g/L, the concentration of the indium in described reducing leaching liquid is 0.060g/L-5g/L, zinc concentration be 5g/L-50g/L, ferrum concentration be 10g/L-100g/L, wherein said ferrum comprises Fe3+And Fe2+, Fe in described ferrum2+Content be more than or equal to 95wt%, described Fe3+Concentration less than or equal to 5g/L。
According to one embodiment of present invention, the addition of described agstone is 10g/L-12g/L, and the reaction temperature of the heavy indium of described neutralizing hydrolysis is 60 DEG C-90 DEG C, the response time is 0.5 hour-1.5 hours, reaction end pH is 5.0。
According to one embodiment of present invention, acid-containing solution is utilized to leach the indium in described first gypsum tailings, the reaction temperature of described leaching is 60 DEG C-90 DEG C, the response time is 1 hour-5 hours, the volume mass of described acid-containing solution and described first gypsum tailings is than for 3L/Kg-6L/Kg, the initial sulfuric acid concentration of reaction of described leaching is 80g/L-120g/L, and the reaction end sulfuric acid concentration of described leaching is 60g/L-100g/L。
According to one embodiment of present invention, utilize iron powder by the Cu in described rich solution of indium2+It is reduced to simple substance Cu, Fe3+It is reduced to Fe2+, the addition of described iron powder is 2.0g/L-6.0g/L, and the reaction temperature of described reduction is 60 DEG C-90 DEG C, the response time is 20 minutes-60 minutes。
According to one embodiment of present invention, the addition of described charcoal powder is 10g/L-30g/L, and the reaction temperature that described purification and impurity removal processes is 50 DEG C-70 DEG C, the response time is 20 minutes-60 minutes。
According to one embodiment of present invention, described iron-containing liquor delivers to the iron removal system of zinc hydrometallurgy, arranges outside described second gypsum tailings, reduces the Fe in described rich solution of indium3+The slag produced delivers to the leaching system of zinc hydrometallurgy, and the slag that after purifying described reduction, liquid produces delivers to the roasting system of zinc hydrometallurgy。
According to one embodiment of present invention, in described second gypsum tailings the content of zinc less than or equal to 0.5wt%, ferrum content less than or equal to 0.2wt%, copper content less than or equal to 0.01wt%, arsenic content less than or equal to 0.1wt%, indium concentration less than or equal to 50g/t。
According to one embodiment of present invention, the concentration of the indium in described rich solution of indium is be more than or equal to 0.5g/L。
Accompanying drawing explanation
Fig. 1 be according to embodiments of the present invention from zinc abstraction containing the flow chart of the method for recovery indium indium material。
Detailed description of the invention
Being described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings。The embodiment described below with reference to accompanying drawing is illustrative of, it is intended to is used for explaining the present invention, and is not considered as limiting the invention。
Below with reference to the accompanying drawings describe according to embodiments of the present invention from zinc abstraction containing the method for recovery indium indium material。As it is shown in figure 1, comprising the following steps containing the method for recovery indium indium material from zinc abstraction according to embodiments of the present invention:
Reducing leaching is carried out, in order to obtain reducing leaching liquid to containing indium material；
Utilize agstone that described reducing leaching liquid is neutralized the heavy indium of hydrolysis, in order to obtain the first gypsum tailings of iron-containing liquor and Enrichment Indium；
In acid condition the indium in described first gypsum tailings is leached, in order to obtain rich solution of indium and the second gypsum tailings；
By the Cu in described rich solution of indium2+It is reduced to simple substance Cu, Fe3+It is reduced to Fe2+, in order to liquid after being reduced；
Utilize charcoal powder that liquid after described reduction is carried out purification and impurity removal process, in order to be purified liquid；
Described scavenging solution is extracted。
According to embodiments of the present invention from zinc abstraction containing the method for recovery indium indium material by utilizing agstone that this reducing leaching liquid is neutralized the heavy indium of hydrolysis, from without producing arsenic hydride, not only solve the problem producing arsenic hydride in the heavy indium method of existing zinc powder, and reduce heavy indium cost。
According to embodiments of the present invention from zinc abstraction containing the method for recovery indium indium material by utilizing charcoal powder that liquid after this reduction is carried out purification and impurity removal process, thus being possible not only to the low rich solution of indium of impurity content that output is conducive to extracting, and emulsion will not be produced in extraction process, thus can obtain good effect of extracting, ensure the stable operation that indium extracts, improve indium recovery。
Therefore, not producing arsenic hydride from having containing the method for recovery indium indium material of zinc abstraction, not producing emulsion according to embodiments of the present invention, the advantage such as indium recovery is high, flow process is simple, production cost is low。The problem solving the existing tediously long complexity of indium recovery process containing the method for recovery indium indium material from zinc abstraction according to embodiments of the present invention, can be widely applied to reclaim containing indium flue dust, blast furnace indium containing indium material containing indium flue dust etc. containing indium cadmia, rotary kiln, be particularly suited for the indium in high ferro richness indium zinc sulfide concentrates Zinc Hydrometallurgy Process and reclaim。
It will be appreciated by persons skilled in the art that and can utilize known method that this scavenging solution is extracted, owing to this is unrelated with the inventive point of the present invention, therefore no longer describe in detail。Can utilize known method that containing indium material, this is carried out reducing leaching, owing to this is unrelated with the inventive point of the present invention, therefore no longer describe in detail。
Advantageously, the acidity of this reducing leaching liquid is 3g/L-5g/L, the concentration of the indium in this reducing leaching liquid is 0.060g/L-5g/L, zinc concentration be 5g/L-50g/L, ferrum concentration be 10g/L-100g/L。Wherein, the ferrum in this reducing leaching liquid comprises Fe3+And Fe2+, Fe in ferrum2+Content be more than or equal to 95wt%, Fe3+Concentration less than or equal to 5g/L。It is to say, Fe2+With the mass ratio of ferrum be more than or equal to 0.95:1, the Fe in this reducing leaching liquid3+Concentration less than or equal to 5g/L。
In some embodiments of the invention, the addition of this agstone is 10g/L-12g/L, and the reaction temperature of the heavy indium of this neutralizing hydrolysis is 60 DEG C-90 DEG C, the response time is 0.5 hour-1.5 hours, reaction end pH is 5.0。Unlike the prior art, the present invention utilizes agstone as nertralizer, in order to is neutralized the heavy indium of hydrolysis, thus can avoid because utilizing zinc to produce arsine gas as nertralizer。
And, utilize agstone as nertralizer, it is possible to output iron-containing liquor and impurity content is low, the first gypsum tailings of Enrichment Indium。This iron-containing liquor can deliver to the iron removal system of zinc hydrometallurgy。
In one embodiment of the invention, acid-containing solution is utilized to leach the indium in this first gypsum tailings, the reaction temperature of this leaching is 60 DEG C-90 DEG C, the response time is 1 hour-5 hours, the volume mass of this acid-containing solution and this first gypsum tailings is than for 3L/Kg-6L/Kg, the initial sulfuric acid concentration of reaction of this leaching is 80g/L-120g/L, and the reaction end sulfuric acid concentration of this leaching is 60g/L-100g/L。
In other words, the initial sulfuric acid concentration of the mixture of this acid-containing solution and this first gypsum tailings is 80g/L-120g/L, and after this leaching terminates, the sulfuric acid concentration of the mixture of this acid-containing solution and this first gypsum tailings is 60g/L-100g/L。Advantageously, this acid-containing solution can be zinc electrolytic waste liquid。
After this leaching terminates, obtain this richness solution of indium and this second gypsum tailings。Wherein, the concentration of the indium in this richness solution of indium be more than or equal to 0.5g/L, in this second gypsum tailings the content of zinc less than or equal to 0.5wt%, ferrum content less than or equal to 0.2wt%, copper content less than or equal to 0.01wt%, arsenic content less than or equal to 0.1wt%, indium concentration less than or equal to 50g/t。This second gypsum tailings is high-quality gypsum tailings, the second gypsum tailings can beyond row so that for sale。
In some examples of the present invention, utilize iron powder by the Fe in this richness solution of indium3+It is reduced to Fe2+, the addition of this iron powder is 2.0g/L-6.0g/L, and the reaction temperature of this reduction is 60 DEG C-90 DEG C, the response time is 20 minutes-60 minutes。It is to say, at the temperature of 60 DEG C-90 DEG C, utilize iron powder by the Fe in this richness solution of indium3+It is reduced to Fe2+。Wherein, the Fe in this richness solution of indium is reduced3+The slag produced can deliver to the leaching system of zinc hydrometallurgy。
Advantageously, the addition of this charcoal powder is 10g/L-30g/L, and the reaction temperature that this purification and impurity removal processes is 50 DEG C-70 DEG C, the response time is 20 minutes-60 minutes。It is to say, at the temperature of 50 DEG C-70 DEG C, utilize this charcoal powder that liquid after this reduction is carried out purification and impurity removal process。Wherein, the slag that after purifying this reduction, liquid produces can deliver to the roasting system of zinc hydrometallurgy。
Embodiment one
500L reducing leaching liquid is heated to 80 DEG C, is slowly added to after precipitated calcium carbonate is sized mixing, until terminal pH is 5.0, carry out solid-liquor separation after reaction 1h, the output the first gypsum tailings containing In4500g/t, Zn2.43wt%, Fe3.68wt%。
This first gypsum tailings is leached 2 hours by zinc electrolytic waste liquid at the temperature of 75 DEG C, and obtains rich solution of indium and the second gypsum tailings。The initial sulfuric acid concentration of this zinc electrolytic waste liquid is 95g/L, the liquid-solid ratio 4L/Kg of this indium slag and this zinc electrolytic waste liquid。Wherein, the main chemical compositions of this richness solution of indium is: Zn55.27g/L, Fe15.92g/L, Fe2+11.40g/L、Fe3+4.52g/L, In1.31g/L, H2SO473.26g/L；The main chemical compositions of this second gypsum tailings is: Zn0.35wt%, Fe0.16wt%, Cu0.005wt%, As0.06wt%, In47.25g/t。
This richness solution of indium is heated to 70 DEG C, carries out solid-liquor separation after adding the technical grade reduced iron powder reaction 30min of 2.9g/L, liquid after being reduced。After this reduction, the main chemical compositions of liquid is: Zn54.45g/L, Fe16.12g/L, Fe2+15.78g/L、Fe3+0.54g/L、In1.28g/L、H2SO471.43g/L。
Heating liquid after this reduction to 50 DEG C, add the charcoal powder stirring reaction 20min of 10g/L, the scavenging solution of output enters extraction box and uses 30%P204+70% aerial kerosene as extractant, carry out 4 grades of continuous flow upstream indiums to extract, effect of extracting is good, and point phase velocity is very fast, it does not have emulsion produces。
Embodiment two
400L reducing leaching liquid is heated to 90 DEG C, is slowly added to after precipitated calcium carbonate is sized mixing, until terminal pH is 5.0, after reacting 0.5 hour, carry out solid-liquor separation, the output the first gypsum tailings containing In4610g/t, Zn3.06wt%, Fe3.64wt%。
This first gypsum tailings is leached 4 hours by zinc electrolytic waste liquid at the temperature of 60 DEG C, and obtains rich solution of indium and the second gypsum tailings。The initial sulfuric acid concentration of this zinc electrolytic waste liquid is 90g/L, the liquid-solid ratio 3.5L/Kg of this indium slag and this zinc electrolytic waste liquid。Wherein, the main chemical compositions of this richness solution of indium is: Zn58.72g/L, Fe16.03g/L, Fe2+10.90g/L、Fe3+5.13g/L、In1.42g/L、H2SO477.52g/L；The main chemical compositions of this second gypsum tailings is: Zn0.26wt%, Fe0.13wt%, Cu0.002wt%, As0.03wt%, In43.84g/t。
This richness solution of indium is heated to 75 DEG C, carries out solid-liquor separation after adding the technical grade reduced iron powder reaction 20min of 3.60g/L, liquid after being reduced。After this reduction, the main chemical compositions of liquid is: Zn56.23g/L, Fe16.62g/L, Fe2+16.37g/L、Fe3+0.25g/L, In1.37g/L, H2SO473.86g/L。
Heating liquid after this reduction to 60 DEG C, add the charcoal powder stirring reaction 30min of 20g/L, the scavenging solution of output enters extraction box and uses 30%P204+70% aerial kerosene as extractant, carry out 4 grades of continuous flow upstream indiums to extract, effect of extracting is good, and point phase velocity is very fast, it does not have emulsion produces。
Embodiment three:
600L reducing leaching liquid is heated to 85 DEG C, is slowly added to after precipitated calcium carbonate is sized mixing, until terminal pH is 5.0, carry out solid-liquor separation after reaction 1h, the output the first gypsum tailings containing In4465g/t, Zn2.87wt%, Fe3.13wt%。
This first gypsum tailings is leached 1 hour by zinc electrolytic waste liquid at the temperature of 85 DEG C, and obtains rich solution of indium and the second gypsum tailings。The initial sulfuric acid concentration of this zinc electrolytic waste liquid is 110g/L, the liquid-solid ratio 5L/Kg of this indium slag and this zinc electrolytic waste liquid。Wherein, the main chemical compositions of this richness solution of indium is: Zn53.64g/L, Fe15.73g/L, Fe2+11.40g/L、Fe3+4.66g/L、In1.20g/L、H2SO476.43g/L；The main chemical compositions of this second gypsum tailings is: Zn0.20wt%, Fe0.11wt%, Cu0.005wt%, As0.03wt%, In40.56g/t。
This richness solution of indium is heated to 85 DEG C, carries out solid-liquor separation after adding the technical grade reduced iron powder reaction 50min of 3.2g/L, liquid after being reduced。After this reduction, the main chemical compositions of liquid is: Zn56.35g/L, Fe15.74g/L, Fe2+14.98g/L、Fe3+0.76g/L, In1.15g/L, H2SO472.63g/L。
Heating liquid after this reduction to 70 DEG C, add the charcoal powder stirring reaction 50min of 30g/L, output solution enters extraction box and uses 30%P204+70% aerial kerosene as extractant, carry out 4 grades of continuous flow upstream indiums to extract, effect of extracting is good, and point phase velocity is very fast, it does not have emulsion produces。
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axially ", " radially ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not considered as limiting the invention。
Additionally, term " first ", " second " are only for descriptive purposes, and it is not intended that indicate or imply 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, for instance two, three etc., unless otherwise expressly limited specifically。
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, for instance, it is possible to it is fixing connection, it is also possible to be removably connect, or integral；Can be mechanically connected, it is also possible to be electrical connection or each other can communication；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, it is possible to 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, it is possible to understand above-mentioned term concrete meaning in the present invention 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, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means in conjunction with this embodiment or example describe 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 combine in one or more embodiments in office or example in an appropriate manner。Additionally, when not conflicting, the feature of the different embodiments described in this specification or example and different embodiment or example can be carried out combining and combining 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 illustrative of, 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 from zinc abstraction containing the method for recovery indium indium material, it is characterised in that comprise the following steps:
Reducing leaching is carried out, in order to obtain reducing leaching liquid to containing indium material；
Utilize agstone emulsion that described reducing leaching liquid is neutralized the heavy indium of hydrolysis, in order to obtain the first gypsum tailings of iron-containing liquor and Enrichment Indium；
In acid condition the indium in described first gypsum tailings is leached, in order to obtain rich solution of indium and the second gypsum tailings；
By the Cu in described rich solution of indium2+It is reduced to simple substance Cu, Fe3+It is reduced to Fe2+, in order to liquid after being reduced；
Utilize charcoal powder that liquid after described reduction is carried out purification and impurity removal process, in order to be purified liquid；With
Described scavenging solution is extracted。
2. according to claim 1 from zinc abstraction containing the method for recovery indium indium material, it is characterized in that, the acidity of described reducing leaching liquid is 3g/L-5g/L, the concentration of the indium in described reducing leaching liquid is 0.060g/L-5g/L, zinc concentration be 5g/L-50g/L, ferrum concentration be 10g/L-100g/L, wherein said ferrum comprises Fe3+And Fe2+, Fe in described ferrum2+Content be more than or equal to 95wt%, described Fe3+Concentration less than or equal to 5g/L。
3. according to claim 1 from zinc abstraction containing the method for recovery indium indium material, it is characterized in that, the addition of described agstone is 10g/L-12g/L, and the reaction temperature of the heavy indium of described neutralizing hydrolysis is 60 DEG C-90 DEG C, the response time is 0.5 hour-1.5 hours, reaction end pH is 5.0。
4. according to claim 1 from zinc abstraction containing the method for recovery indium indium material, it is characterized in that, acid-containing solution is utilized to leach the indium in described first gypsum tailings, the reaction temperature of described leaching is 60 DEG C-90 DEG C, the response time is 1 hour-5 hours, the volume mass of described acid-containing solution and described first gypsum tailings is than for 3L/Kg-6L/Kg, the initial sulfuric acid concentration of reaction of described leaching is 80g/L-120g/L, and the reaction end sulfuric acid concentration of described leaching is 60g/L-100g/L。
5. according to claim 1 from zinc abstraction containing the method for recovery indium indium material, it is characterised in that utilize iron powder by the Cu in described rich solution of indium2+It is reduced to simple substance Cu, Fe3+It is reduced to Fe2+, the addition of described iron powder is 2.0g/L-6.0g/L, and the reaction temperature of described reduction is 60 DEG C-90 DEG C, the response time is 20 minutes-60 minutes。
6. according to claim 1 from zinc abstraction containing the method for recovery indium indium material, it is characterised in that the addition of described charcoal powder is 10g/L-30g/L, and the reaction temperature that described purification and impurity removal processes is 50 DEG C-70 DEG C, the response time is 20 minutes-60 minutes。
7. according to claim 1 from zinc abstraction containing the method for recovery indium indium material, it is characterised in that described iron-containing liquor delivers to the iron removal system of zinc hydrometallurgy, arranges outside described second gypsum tailings, reduces the Fe in described rich solution of indium3+The slag produced delivers to the leaching system of zinc hydrometallurgy, and the slag that after purifying described reduction, liquid produces delivers to the roasting system of zinc hydrometallurgy。
8. according to claim 1 from zinc abstraction containing the method for recovery indium indium material, it is characterized in that, in described second gypsum tailings the content of zinc less than or equal to 0.5wt%, ferrum content less than or equal to 0.2wt%, copper content less than or equal to 0.01wt%, arsenic content less than or equal to 0.1wt%, indium concentration less than or equal to 50g/t。
9. according to claim 1 from zinc abstraction containing the method for recovery indium indium material, it is characterised in that the concentration of the indium in described rich solution of indium is be more than or equal to 0.5g/L。
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107828970A (en) * | 2017-12-08 | 2018-03-23 | 欧艳 | A kind of method of the recovery indium from the material containing indium of zinc abstraction |
| CN108486365A (en) * | 2018-02-01 | 2018-09-04 | 云南云铜锌业股份有限公司 | A method of the Enrichment Indium from the low material of zinc abstraction containing indium |
| CN114438328A (en) * | 2021-12-30 | 2022-05-06 | 云锡文山锌铟冶炼有限公司 | Device and method for treating zinc sulfate leaching liquid generated in zinc hydrometallurgy process |
| CN114703368A (en) * | 2022-02-21 | 2022-07-05 | 云锡文山锌铟冶炼有限公司 | Method for treating zinc-indium-containing gypsum slag |
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| CN1718782A (en) * | 2005-07-28 | 2006-01-11 | 云南冶金集团总公司 | Production method of zinc indium by pressurized acid leaching neutralization precipitation separation indium from indium containing high iron zinc sulfide concentrate |
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| JP2013001916A (en) * | 2011-06-13 | 2013-01-07 | Sumitomo Metal Mining Co Ltd | Leaching method of nickel |
| CN103045863A (en) * | 2013-01-25 | 2013-04-17 | 株洲冶炼集团股份有限公司 | Method for pretreating indium-containing zinc oxide acid supernatant |
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| CN1718782A (en) * | 2005-07-28 | 2006-01-11 | 云南冶金集团总公司 | Production method of zinc indium by pressurized acid leaching neutralization precipitation separation indium from indium containing high iron zinc sulfide concentrate |
| JP2013001916A (en) * | 2011-06-13 | 2013-01-07 | Sumitomo Metal Mining Co Ltd | Leaching method of nickel |
| CN102534227A (en) * | 2012-03-01 | 2012-07-04 | 郴州市金贵银业股份有限公司 | Method for extracting indium from indium-rich smoke dust by using oxygen pressure technology |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107828970A (en) * | 2017-12-08 | 2018-03-23 | 欧艳 | A kind of method of the recovery indium from the material containing indium of zinc abstraction |
| CN108486365A (en) * | 2018-02-01 | 2018-09-04 | 云南云铜锌业股份有限公司 | A method of the Enrichment Indium from the low material of zinc abstraction containing indium |
| CN114438328A (en) * | 2021-12-30 | 2022-05-06 | 云锡文山锌铟冶炼有限公司 | Device and method for treating zinc sulfate leaching liquid generated in zinc hydrometallurgy process |
| CN114438328B (en) * | 2021-12-30 | 2023-09-22 | 云锡文山锌铟冶炼有限公司 | Device and method for producing zinc sulfate leaching solution in zinc hydrometallurgy process |
| CN114703368A (en) * | 2022-02-21 | 2022-07-05 | 云锡文山锌铟冶炼有限公司 | Method for treating zinc-indium-containing gypsum slag |
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Application publication date: 20160622 |