CN104722410A - Method for extracting and separating valuable metal from hot-acid leaching residues produced by wet-process zinc smelting - Google Patents
Method for extracting and separating valuable metal from hot-acid leaching residues produced by wet-process zinc smelting Download PDFInfo
- Publication number
- CN104722410A CN104722410A CN201510084538.XA CN201510084538A CN104722410A CN 104722410 A CN104722410 A CN 104722410A CN 201510084538 A CN201510084538 A CN 201510084538A CN 104722410 A CN104722410 A CN 104722410A
- Authority
- CN
- China
- Prior art keywords
- height
- roughly
- time
- leaching slag
- silver
- 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.)
- Granted
Links
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a method for extracting and separating valuable metal from hot-acid leaching residues produced by wet-process zinc smelting. The method is characterized by including two steps that 1 disintegration and beneficiation are conducted on the hot-acid leaching residues; 2 flotation is conducted, wherein 1 the disintegration and beneficiation are conducted on the hot-acid leaching residues: in a strong alkaline condition, valuable metal elements are released by disintegrating meta-voltaite and silicate from the hot-acid leaching residues and translated to a material with a form easy to floate; 2 the flotation is conducted: after the hot-acid leaching residues are disintegrated and valuable metal elements are translated, silver concentrate, iron ore concentrate and lead concentrate are selected from silver, iron and lead of the hot-acid leaching residues respectively by using a flotation technology. The method has the advantages that precious metal silver, valuable metal iron and valuable metal lead are effectively disintegrated and beneficiated; a series of environmental influence problems caused by stack of residues are solved; an industry chain is extended, and the comprehensive utilization level of resources is improved; the practical operability of the technology is high, and mass production application can be achieved.
Description
Technical field:
The present invention relates to the method for extraction and isolation valuable metal, particularly relate to the method for extraction and isolation valuable metal from the height leaching slag of wet method zinc abstraction output.
Background technology:
Along with carrying forward vigorously of process of industrialization, nonferrous metal product demand significantly rises, and non-ferrous metal output also increases year by year, correspondingly just must supply energetically and smelt required mineral raw material.And the modern industry has developed upper a century, mineral resources have been depleted to certain degree, it is conflicting that total demand increases with the production decline law of the finiteness of supply and demand resource and supply and demand total resources year by year, it is impossible for dissolving this contradiction completely, can only carry out the large lifting of related industry technology to slow down highlighting of contradiction.In mining and metallurgy industry, the limitation of aggregate resource is confronted, and thus must try to achieve the upgrading of industry in the progress of production technique and extractive technique.
Zinc abstraction technology is from early stage distillation smelting process, to conventional zinc abstraction technique, arrive hot acid leaching-low stain autunezite smelting process again, then start now the pure wet method smelting process of pressurization or the normal pressure direct Leaching Zinc concentrate applied abroad, the paces that zinc abstraction technology is advanced towards development always carry out.Due to successively decreasing of zinc resource total amount, and the continuous expansion of zinc production capacity, smelting enterprise is selective more and more less to zinc concentrate raw material, and various complicated raw material is finally all put in smelting system.The raw material of this feature, proposes acid test to smelting enterprise.The high leaching quantity of slag is large to use hot acid leaching-low stain jarosite process to occur, the valuable metal argentalium etc. in high leaching slag cannot reclaim, and the rate of recovery of zinc also declines simultaneously, and many resources are wasted.
The evolution process mainly first pyrogenic process (way of distillation) of zinc abstraction technical matters, then pyrogenic process is combined with wet method (oxidizing roasting-wet-leaching, purification, electrodeposition), starts the process having the Whote-wet method technique of use (pressurization or normal pressure directly leach) such to present.Zinc industry at home, these three kinds of technology are also deposited, and along with the enhancing of environmental consciousness, energy-saving and cost-reducing consciousness, national policy carries out the technical matters using energy-conserving and environment-protective gradually, and full thermal process is limited application.The technique that present domestic zinc abstraction factory all utilizes part pyrogenic process to combine with wet method, also be the smelting process as far as possible carrying out less pyrogenic process link simultaneously, therefore the zinc abstraction conventional method carried out before is also substituted by yellow that siderotil (or autunezite) technique of low stain gradually, and low stain jarosite process is also the first-selected technique that starts of new projects in recent years.But this project problems faced is, zinc raw ore product composition becomes increasingly complex changeable, and main metallic zinc grade reduces gradually, and the raw material of associated metal, polymetallic ore increases, be wherein that the raw material of major impurity becomes generality with iron, a difficult problem certainly will be brought to jarosite process like this.Deironing goes wrong, and brings scum amount large, and zinc loss amount is also large, and the valuable metal of wherein association can not well reclaim, also for the whole synthesis of resource utilize bring very large unfavorable.Conventional method in the past, can not consider that iron brings to associated metal and reclaim disadvantageous problem, high leaching slag can be put in pyrogenic process rotary kiln by one brain, has been reclaimed by the plumbous silver-colored zinc of valuable metal etc.And jarosite process, most height leaching slag is all generally be deposited into slag field, can not effectively reclaim.Border is investigated factually, and some such slag is sold, and is also only the feed proportioning as zinc oxide factory, namely as the batching of the higher raw material of grade, a small amount of input, the not extensive possibility utilized, only reclaimed the zinc that wherein content is not high, and other lead silver can not be recycled very well.
In order to effectively recycle the valuable element in wet method zinc abstraction height leaching slag, domestic and international experts and scholars have carried out studying comparatively widely, develop kinds of processes method, be summed up following several: rotary kiln fuming process, selecting smelting combination method, hot acid leach-sink iron processes, melting-extraction, chlorination fuming process, alloyage etc.In addition, on the basis of above-mentioned several basic procedure, some other relevant technique has also been derived.Although because research achieves good experiment effect above, the factors such as technical difficulty is high, and actual operation is poor, and associated metal cost recovery is high, efficiency is low greatly limit the propagation and employment of technology.
Summary of the invention:
The object of the present invention is to provide the method for extraction and isolation valuable metal a kind of workable, low cost, the high efficiency height from wet method zinc abstraction output leaching slag.
Object of the present invention is implemented by following technical scheme, the method for extraction and isolation valuable metal from the height leaching slag of wet method zinc abstraction output, and it comprises two steps: (1) height leaching slag decomposes enrichment; (2) flotation; Wherein,
(1) high leaching slag decomposes enrichment: under strongly alkaline conditions, and the valuable metal element discharged after height being soaked the ihleite in slag, silicate decomposition, is converted into easy flotation form;
(2) flotation: the silver in the described height leaching slag after described step (1) being decomposed-transform, iron, lead, by flotation technology, select silver preparation concentrate, iron ore concentrate and lead concentrate respectively.
Concrete, described step (1) height leaching slag decomposes enrichment, Jiang Shui is mixed into height by the mass ratio of 3:1-5:1 soaks dreg slurry with the high slag that soak, then in described height leaching dreg slurry, add solid base, the mass ratio that described solid base and described height soak slag is 1:5-1:10, and moderate strength stirs, described height leaching slag starts reaction decomposes enrichment in the basic conditions, reaction temperature is 80-85 DEG C, and the reaction time is 40min-60min, obtains the enrichment height leaching dreg slurry that pH value is 7-8 when having reacted.
Concrete, described solid base is any one or more than one the combination in NaOH, potassium hydroxide, barium hydroxide, calcium oxide, vulcanized sodium or sodium carbonate.
Concrete, described step (2) flotation is divided into three steps to complete, and is respectively: a, silver-colored flotation; B, iron flotation; C, plumbum floatation; Wherein,
A, silver-colored flotation:
First is roughly selected: at ambient temperature, in described enrichment height leaching dreg slurry, add activator vulcanized sodium activation 20min, and the quality adding described vulcanized sodium in described height leaching slag per ton is 5kg, and described height leaching slag is as the criterion with butt; After having activated, collecting agent butylamine black powder and isopropyl xanthate is added in described enrichment height leaching dreg slurry, the quality adding described butylamine black powder in described height leaching slag per ton is 350-450g, the quality adding described isopropyl xanthate in described height leaching slag per ton is 100-200g, the collecting time is 4-10min, scraping the bubble time is 4-10min, scraping the bubble frequency is 2s/ time, in floatation process, adopt medium stirring intensity in course of reaction, first obtains silver preparation concentrate after roughly selecting end and first silver roughly selects rear slurry;
Second is roughly selected: at ambient temperature, roughly select in rear slurry to described first silver and add described collecting agent butylamine black powder and isopropyl xanthate, the quality adding described butylamine black powder in described height leaching slag per ton is 200-300g, the quality adding described isopropyl xanthate in described height leaching slag per ton is 50-100g, the collecting time is 4-10min, scraping the bubble time is 3-10min, scraping the bubble frequency is 2s/ time, in floatation process, adopt medium stirring intensity in course of reaction, second obtains silver preparation concentrate after roughly selecting end and second silver roughly selects rear slurry;
B, iron flotation:
First is roughly selected: at ambient temperature, roughly select in rear slurry to described second silver and add described collecting agent enuatrol, the quality adding described enuatrol in described height leaching slag per ton is 800-1000g, the collecting time is 4-10min, scraping the bubble time is 4-10min, and scraping the bubble frequency is 2s/ time, in floatation process, medium stirring intensity, first obtains iron ore concentrate after roughly selecting end and rear slurry roughly selected by first iron;
Second is roughly selected: at ambient temperature, roughly select in rear slurry to described first iron and add described collecting agent enuatrol, the quality adding described enuatrol in described height leaching slag per ton is 400-500g, the collecting time is 4-10min, scraping the bubble time is 3-10min, and scraping the bubble frequency is 2s/ time, in floatation process, medium stirring intensity, second obtains iron ore concentrate after roughly selecting end and rear slurry roughly selected by second iron;
C, plumbous zinc flotation:
First is roughly selected: at ambient temperature, roughly select in rear slurry to second iron and add described vulcanized sodium and copper sulphate for activation 20min, the quality adding described vulcanized sodium in described height leaching slag per ton is 5kg, the quality adding described copper sulphate in described height leaching slag per ton is 5kg, after activation, roughly select in rear slurry to described second iron and add described collecting agent butyl xanthate and No. 25 black powder, the quality adding described butyl xanthate in described height leaching slag per ton is 600g, the quality adding described No. 25 black powder in described height leaching slag per ton is 200g, the collecting time is 4-10min, scraping the bubble time is 4-10min, scraping the bubble frequency is 2s/ time, in floatation process, medium stirring intensity, first obtains lead concentrate after roughly selecting end and first lead roughly selects rear slurry,
Second is roughly selected: at ambient temperature, roughly select in rear slurry to described first lead and add described butyl xanthate and described No. 25 black powder, the quality adding described butyl xanthate in described height leaching slag per ton is 400g, the quality adding described No. 25 black powder in described height leaching slag per ton is 100g, and the collecting time is 4-10min, and scraping the bubble time is 4-10min, scraping the bubble frequency is 2s/ time, in floatation process, medium stirring intensity, first obtains described lead concentrate and tailings after roughly selecting end;
Described height leaching slag is lead smelting gas.
The valuable metal element be mixed in compound molecule is discharged after the ihleite slag carried secretly in decomposition and inversion height leaching slag (lead smelting gas) and silicate, the form being converted into easy flotation is reclaimed each metallic element by floatation process again, after flotation, silver preparation concentrate silver grade reaches 5000-10000g/t, silver raising recovery rate is at 75-85%, iron ore concentrate Iron grade is about 40%, rate of recovery 50%-60%, the plumbous grade of lead concentrate is at 12-30%, the rate of recovery about 30%, and then reach the object reclaiming valuable metal in zinc abstraction waste residue.
Advantage of the present invention: this technique is on the basis of conventional wet zinc abstraction extract technology, and in order to improve enriching and recovering efficiency plumbous, silver-colored in zinc concentrate raw material, employing is decomposed-transformed, floatation process carries out the valuable metal reclaiming association in raw material.Like this, it can be the form of easy flotation by the valuable metal element decomposition and inversion of association in wet method zinc abstraction height leaching slag, by flotation technology, each metallic element is separated respectively again, not only reach the object of effective concentration of valuable metals grade, valuable metal element have also been obtained effective separation simultaneously.One, noble silver obtains effectively be separated and enrichment with valuable metal lead, iron; Two, solve slag muck and put a series of environmental impact issues processing and bring; Three, extend industrial chain, improve the level of comprehensive utilization of resource; Four, present invention process actual operation is strong, can realize large-scale production and application; Five, greatly improve associated metal organic efficiency, greatly reduce associated metal cost recovery.
Accompanying drawing illustrates:
Fig. 1 is the method flow diagram of extraction and isolation valuable metal from the height leaching slag of wet method zinc abstraction output.
Detailed description of the invention:
Embodiment 1: with lead smelting gas composition for silver content 260g/t, the mass percentage 25% of iron, plumbous mass percentage 7% is example, the method for extraction and isolation valuable metal from the height leaching slag of wet method zinc abstraction output, and it comprises two steps: (1) height leaching slag decomposes enrichment; (2) flotation; Wherein,
(1) high leaching slag decomposes enrichment: under strongly alkaline conditions, and the valuable metal element discharged after height being soaked the ihleite in slag, silicate decomposition, is converted into easy flotation form;
(2) flotation: the silver in the height leaching slag after step (1) being decomposed-transform, iron, lead, by flotation technology, select silver preparation concentrate, iron ore concentrate and lead concentrate respectively.
Concrete, step (1) height leaching slag decomposes enrichment, Jiang Shui is mixed into height by the mass ratio of 3:1 soaks dreg slurry with the high slag that soak, then in height leaching dreg slurry, add NaOH, NaOH is 1:10 with the high mass ratio soaking slag, and moderate strength stirs, high leaching slag starts reaction decomposes enrichment in the basic conditions, reaction temperature is 80 DEG C, and the reaction time is 40min, obtains the enrichment height leaching dreg slurry that pH value is 7 when having reacted.
Concrete, described step (2) flotation is divided into three steps to complete, and is respectively: a, silver-colored flotation; B, iron flotation; C, plumbum floatation; Wherein,
A, silver-colored flotation:
First is roughly selected: at ambient temperature, in enrichment height leaching dreg slurry, add activator vulcanized sodium activation 20min, and the quality adding vulcanized sodium in height leaching slag per ton is 5kg, and high leaching slag is as the criterion with butt; After having activated, collecting agent butylamine black powder and isopropyl xanthate is added in enrichment height leaching dreg slurry, the quality adding butylamine black powder in height leaching slag per ton is 350g, the quality adding isopropyl xanthate in height leaching slag per ton is 100g, and the collecting time is 4min, and scraping the bubble time is 4min, scraping the bubble frequency is 2s/ time, in floatation process, adopt medium stirring intensity in course of reaction, first obtains silver preparation concentrate after roughly selecting end and first silver roughly selects rear slurry;
Second is roughly selected: at ambient temperature, roughly select in rear slurry to first silver and add collecting agent butylamine black powder and isopropyl xanthate, the quality adding butylamine black powder in height leaching slag per ton is 200g, the quality adding isopropyl xanthate in height leaching slag per ton is 50g, and the collecting time is 4min, and scraping the bubble time is 3min, scraping the bubble frequency is 2s/ time, in floatation process, adopt medium stirring intensity in course of reaction, second obtains silver preparation concentrate after roughly selecting end and second silver roughly selects rear slurry; Roughly selected silver-colored grade in the silver preparation concentrate obtained by twice and reach 5000g/t, silver raising recovery rate 80%.
B, iron flotation:
First is roughly selected: at ambient temperature, roughly select in rear slurry to second silver and add collecting agent enuatrol, the quality adding enuatrol in height leaching slag per ton is 800g, the collecting time is 4min, scraping the bubble time is 4min, and scraping the bubble frequency is 2s/ time, in floatation process, medium stirring intensity, first obtains iron ore concentrate after roughly selecting end and rear slurry roughly selected by first iron;
Second is roughly selected: at ambient temperature, roughly select in rear slurry to first iron and add collecting agent enuatrol, the quality adding enuatrol in height leaching slag per ton is 400g, the collecting time is 4min, scraping the bubble time is 3min, and scraping the bubble frequency is 2s/ time, in floatation process, medium stirring intensity, second obtains iron ore concentrate after roughly selecting end and rear slurry roughly selected by second iron; Roughly selected Iron grade in the iron ore concentrate obtained by twice and reach 40%, iron recovery 60%.
C, plumbous zinc flotation:
First is roughly selected: at ambient temperature, roughly select in rear slurry to second iron and add vulcanized sodium and copper sulphate for activation 20min, the quality adding vulcanized sodium in height leaching slag per ton is 5kg, the quality adding copper sulphate in height leaching slag per ton is 5kg, after activation, roughly select in rear slurry to second iron and add collecting agent butyl xanthate and No. 25 black powder, the quality adding butyl xanthate in height leaching slag per ton is 600g, the quality adding No. 25 black powder in height leaching slag per ton is 200g, the collecting time is 4min, scraping the bubble time is 4min, scraping the bubble frequency is 2s/ time, in floatation process, medium stirring intensity, first obtains lead concentrate after roughly selecting end and first lead roughly selects rear slurry,
Second is roughly selected: at ambient temperature, roughly select in rear slurry to first lead and add butyl xanthate and No. 25 black powder, the quality adding butyl xanthate in height leaching slag per ton is 400g, the quality adding No. 25 black powder in height leaching slag per ton is 100g, and the collecting time is 4min, and scraping the bubble time is 4min, scraping the bubble frequency is 2s/ time, in floatation process, medium stirring intensity, first obtains lead concentrate and tailings after roughly selecting end; Roughly selected plumbous grade in the lead concentrate obtained by twice and reach 20%, lead recovery is 28%.
Embodiment 2: with lead smelting gas composition for silver content 300g/t, the mass percentage 23% of iron, plumbous mass percentage 6% is example, the method for extraction and isolation valuable metal from the height leaching slag of wet method zinc abstraction output, and it comprises two steps: (1) height leaching slag decomposes enrichment; (2) flotation; Wherein,
(1) high leaching slag decomposes enrichment: under strongly alkaline conditions, and the valuable metal element discharged after height being soaked the ihleite in slag, silicate decomposition, is converted into easy flotation form;
(2) flotation: the silver in the height leaching slag after step (1) being decomposed-transform, iron, lead, by flotation technology, select silver preparation concentrate, iron ore concentrate and lead concentrate respectively.
Concrete, step (1) height leaching slag decomposes enrichment, Jiang Shui is mixed into height by the mass ratio of 5:1 soaks dreg slurry with the high slag that soak, then in height leaching dreg slurry, add the mixed base that potassium hydroxide and calcium oxide mixs by 1:3 mass ratio, mixed base is 1:7 with the high mass ratio soaking slag, moderate strength stirring, high leaching slag starts reaction decomposes enrichment in the basic conditions, reaction temperature is 85 DEG C, and the reaction time is 60min, obtains the enrichment height leaching dreg slurry that pH value is 8 when having reacted.
Concrete, described step (2) flotation is divided into three steps to complete, and is respectively: a, silver-colored flotation; B, iron flotation; C, plumbum floatation; Wherein,
A, silver-colored flotation:
First is roughly selected: at ambient temperature, in enrichment height leaching dreg slurry, add activator vulcanized sodium activation 20min, and the quality adding vulcanized sodium in height leaching slag per ton is 5kg, and high leaching slag is as the criterion with butt; After having activated, collecting agent butylamine black powder and isopropyl xanthate is added in enrichment height leaching dreg slurry, the quality adding butylamine black powder in height leaching slag per ton is 450g, the quality adding isopropyl xanthate in height leaching slag per ton is 200g, and the collecting time is 10min, and scraping the bubble time is 10min, scraping the bubble frequency is 2s/ time, in floatation process, adopt medium stirring intensity in course of reaction, first obtains silver preparation concentrate after roughly selecting end and first silver roughly selects rear slurry;
Second is roughly selected: at ambient temperature, roughly select in rear slurry to first silver and add collecting agent butylamine black powder and isopropyl xanthate, the quality adding butylamine black powder in height leaching slag per ton is 300g, the quality adding isopropyl xanthate in height leaching slag per ton is 100g, and the collecting time is 10min, and scraping the bubble time is 10min, scraping the bubble frequency is 2s/ time, in floatation process, adopt medium stirring intensity in course of reaction, second obtains silver preparation concentrate after roughly selecting end and second silver roughly selects rear slurry; Roughly selected silver-colored grade in the silver preparation concentrate obtained by twice and reach 7000g/t, silver raising recovery rate 85%.
B, iron flotation:
First is roughly selected: at ambient temperature, roughly select in rear slurry to second silver and add collecting agent enuatrol, the quality adding enuatrol in height leaching slag per ton is 1000g, the collecting time is 10min, scraping the bubble time is 10min, and scraping the bubble frequency is 2s/ time, in floatation process, medium stirring intensity, first obtains iron ore concentrate after roughly selecting end and rear slurry roughly selected by first iron;
Second is roughly selected: at ambient temperature, roughly select in rear slurry to first iron and add collecting agent enuatrol, the quality adding enuatrol in height leaching slag per ton is 500g, the collecting time is 10min, scraping the bubble time is 10min, and scraping the bubble frequency is 2s/ time, in floatation process, medium stirring intensity, second obtains iron ore concentrate after roughly selecting end and rear slurry roughly selected by second iron; Roughly selected Iron grade in the iron ore concentrate obtained by twice and reach 38%, iron recovery 55%.
C, plumbous zinc flotation:
First is roughly selected: at ambient temperature, roughly select in rear slurry to second iron and add vulcanized sodium and copper sulphate for activation 20min, the quality adding vulcanized sodium in height leaching slag per ton is 5kg, the quality adding copper sulphate in height leaching slag per ton is 5kg, after activation, roughly select in rear slurry to second iron and add collecting agent butyl xanthate and No. 25 black powder, the quality adding butyl xanthate in height leaching slag per ton is 600g, the quality adding No. 25 black powder in height leaching slag per ton is 200g, the collecting time is 10min, scraping the bubble time is 10min, scraping the bubble frequency is 2s/ time, in floatation process, medium stirring intensity, first obtains lead concentrate after roughly selecting end and first lead roughly selects rear slurry,
Second is roughly selected: at ambient temperature, roughly select in rear slurry to first lead and add butyl xanthate and No. 25 black powder, the quality adding butyl xanthate in height leaching slag per ton is 400g, the quality adding No. 25 black powder in height leaching slag per ton is 100g, and the collecting time is 10min, and scraping the bubble time is 10min, scraping the bubble frequency is 2s/ time, in floatation process, medium stirring intensity, first obtains lead concentrate and tailings after roughly selecting end; Roughly selected plumbous grade in the lead concentrate obtained by twice and reach 16%, lead recovery is 28%.
Embodiment 3: with lead smelting gas composition for silver content 200g/t, the mass percentage 22% of iron, plumbous mass percentage 5% is example, the method for extraction and isolation valuable metal from the height leaching slag of wet method zinc abstraction output, and it comprises two steps: (1) height leaching slag decomposes enrichment; (2) flotation; Wherein,
(1) high leaching slag decomposes enrichment: under strongly alkaline conditions, and the valuable metal element discharged after height being soaked the ihleite in slag, silicate decomposition, is converted into easy flotation form;
(2) flotation: the silver in the height leaching slag after step (1) being decomposed-transform, iron, lead, by flotation technology, select silver preparation concentrate, iron ore concentrate and lead concentrate respectively.
Concrete, step (1) height leaching slag decomposes enrichment, Jiang Shui is mixed into height by the mass ratio of 4:1 soaks dreg slurry with the high slag that soak, then in height leaching dreg slurry, add the mixed base that barium hydroxide, calcium oxide, vulcanized sodium and sodium carbonate mix by the mass ratio of 1:1:1:1, mixed base is 1:5 with the high mass ratio soaking slag, moderate strength stirs, high leaching slag starts reaction decomposes enrichment in the basic conditions, reaction temperature is 82 DEG C, reaction time is 50min, obtains the enrichment height leaching dreg slurry that pH value is 7 when having reacted.
Concrete, described step (2) flotation is divided into three steps to complete, and is respectively: a, silver-colored flotation; B, iron flotation; C, plumbum floatation; Wherein,
A, silver-colored flotation:
First is roughly selected: at ambient temperature, in enrichment height leaching dreg slurry, add activator vulcanized sodium activation 20min, and the quality adding vulcanized sodium in height leaching slag per ton is 5kg, and high leaching slag is as the criterion with butt; After having activated, collecting agent butylamine black powder and isopropyl xanthate is added in enrichment height leaching dreg slurry, the quality adding butylamine black powder in height leaching slag per ton is 400g, the quality adding isopropyl xanthate in height leaching slag per ton is 150g, and the collecting time is 7min, and scraping the bubble time is 7min, scraping the bubble frequency is 2s/ time, in floatation process, adopt medium stirring intensity in course of reaction, first obtains silver preparation concentrate after roughly selecting end and first silver roughly selects rear slurry;
Second is roughly selected: at ambient temperature, roughly select in rear slurry to first silver and add collecting agent butylamine black powder and isopropyl xanthate, the quality adding butylamine black powder in height leaching slag per ton is 250g, the quality adding isopropyl xanthate in height leaching slag per ton is 70g, and the collecting time is 7min, and scraping the bubble time is 6min, scraping the bubble frequency is 2s/ time, in floatation process, adopt medium stirring intensity in course of reaction, second obtains silver preparation concentrate after roughly selecting end and second silver roughly selects rear slurry; Roughly selected silver-colored grade in the silver preparation concentrate obtained by twice and reach 5000g/t, silver raising recovery rate 75%.
B, iron flotation:
First is roughly selected: at ambient temperature, roughly select in rear slurry to second silver and add collecting agent enuatrol, the quality adding enuatrol in height leaching slag per ton is 900g, the collecting time is 7min, scraping the bubble time is 7min, and scraping the bubble frequency is 2s/ time, in floatation process, medium stirring intensity, first obtains iron ore concentrate after roughly selecting end and rear slurry roughly selected by first iron;
Second is roughly selected: at ambient temperature, roughly select in rear slurry to first iron and add collecting agent enuatrol, the quality adding enuatrol in height leaching slag per ton is 450g, the collecting time is 7min, scraping the bubble time is 6min, and scraping the bubble frequency is 2s/ time, in floatation process, medium stirring intensity, second obtains iron ore concentrate after roughly selecting end and rear slurry roughly selected by second iron; Roughly selected Iron grade in the iron ore concentrate obtained by twice and reach 35%, iron recovery 50%.
C, plumbous zinc flotation:
First is roughly selected: at ambient temperature, roughly select in rear slurry to second iron and add vulcanized sodium and copper sulphate for activation 20min, the quality adding vulcanized sodium in height leaching slag per ton is 5kg, the quality adding copper sulphate in height leaching slag per ton is 5kg, after activation, roughly select in rear slurry to second iron and add collecting agent butyl xanthate and No. 25 black powder, the quality adding butyl xanthate in height leaching slag per ton is 600g, the quality adding No. 25 black powder in height leaching slag per ton is 200g, the collecting time is 7min, scraping the bubble time is 7min, scraping the bubble frequency is 2s/ time, in floatation process, medium stirring intensity, first obtains lead concentrate after roughly selecting end and first lead roughly selects rear slurry,
Second is roughly selected: at ambient temperature, roughly select in rear slurry to first lead and add butyl xanthate and No. 25 black powder, the quality adding butyl xanthate in height leaching slag per ton is 400g, the quality adding No. 25 black powder in height leaching slag per ton is 100g, and the collecting time is 7min, and scraping the bubble time is 7min, scraping the bubble frequency is 2s/ time, in floatation process, medium stirring intensity, first obtains lead concentrate and tailings after roughly selecting end; Roughly selected plumbous grade in the lead concentrate obtained by twice and reach 15%, lead recovery is 20%.
Claims (5)
1. soak the method for extraction and isolation valuable metal slag from the height of wet method zinc abstraction output, it is characterized in that, it comprises two steps: (1) height leaching slag decomposes enrichment; (2) flotation; Wherein,
(1) high leaching slag decomposes enrichment: under strongly alkaline conditions, and the valuable metal element discharged after height being soaked the ihleite in slag, silicate decomposition, is converted into easy flotation form;
(2) flotation: the silver in the described height leaching slag after described step (1) being decomposed-transform, iron, lead, by flotation technology, select silver preparation concentrate, iron ore concentrate and lead concentrate respectively.
2. the height from wet method zinc abstraction output according to claim 1 soaks the method for extraction and isolation valuable metal slag, it is characterized in that, described step (1) height leaching slag decomposes enrichment, Jiang Shui is mixed into height by the mass ratio of 3:1-5:1 soaks dreg slurry with the high slag that soak, then in described height leaching dreg slurry, solid base is added, the mass ratio that described solid base and described height soak slag is 1:5-1:10, moderate strength stirs, described height leaching slag starts reaction decomposes enrichment in the basic conditions, reaction temperature is 80-85 DEG C, reaction time is 40min-60min, the enrichment height leaching dreg slurry that pH value is 7-8 is obtained when having reacted.
3. the height from wet method zinc abstraction output according to claim 2 soaks the method for extraction and isolation valuable metal slag, it is characterized in that, described solid base is any one or more than one the combination in NaOH, potassium hydroxide, barium hydroxide, calcium oxide, vulcanized sodium or sodium carbonate.
4. the method for extraction and isolation valuable metal the leaching of the height from the wet method zinc abstraction output slag according to claim 1-3 any one, it is characterized in that, described step (2) flotation is divided into three steps to complete, and is respectively: a, silver-colored flotation; B, iron flotation; C, plumbum floatation; Wherein:
A, silver-colored flotation:
First is roughly selected: at ambient temperature, in described enrichment height leaching dreg slurry, add activator vulcanized sodium activation 20min, and the quality adding described vulcanized sodium in described height leaching slag per ton is 5kg, and described height leaching slag is as the criterion with butt; After having activated, collecting agent butylamine black powder and isopropyl xanthate is added in described enrichment height leaching dreg slurry, the quality adding described butylamine black powder in described height leaching slag per ton is 350-450g, the quality adding described isopropyl xanthate in described height leaching slag per ton is 100-200g, the collecting time is 4-10min, and scraping the bubble time is 4-10min, and scraping the bubble frequency is 2s/ time, adopt medium stirring intensity in floatation process, first obtains silver preparation concentrate after roughly selecting end and first silver roughly selects rear slurry;
Second is roughly selected: at ambient temperature, roughly select in rear slurry to described first silver and add described collecting agent butylamine black powder and isopropyl xanthate, the quality adding described butylamine black powder in described height leaching slag per ton is 200-300g, the quality adding described isopropyl xanthate in described height leaching slag per ton is 50-100g, the collecting time is 4-10min, scraping the bubble time is 3-10min, scraping the bubble frequency is 2s/ time, in floatation process, adopt medium stirring intensity in course of reaction, second obtains silver preparation concentrate after roughly selecting end and second silver roughly selects rear slurry;
B, iron flotation:
First is roughly selected: at ambient temperature, roughly select in rear slurry to described second silver and add described collecting agent enuatrol, the quality adding described enuatrol in described height leaching slag per ton is 800-1000g, the collecting time is 4-10min, scraping the bubble time is 4-10min, and scraping the bubble frequency is 2s/ time, in floatation process, medium stirring intensity, first obtains iron ore concentrate after roughly selecting end and rear slurry roughly selected by first iron;
Second is roughly selected: at ambient temperature, roughly select in rear slurry to described first iron and add described collecting agent enuatrol, the quality adding described enuatrol in described height leaching slag per ton is 400-500g, the collecting time is 4-10min, scraping the bubble time is 3-10min, and scraping the bubble frequency is 2s/ time, in floatation process, medium stirring intensity, second obtains iron ore concentrate after roughly selecting end and rear slurry roughly selected by second iron;
C, plumbous zinc flotation:
First is roughly selected: at ambient temperature, roughly select in rear slurry to second iron and add described vulcanized sodium and copper sulphate for activation 20min, the quality adding described vulcanized sodium in described height leaching slag per ton is 5kg, the quality adding described copper sulphate in described height leaching slag per ton is 5kg, after activation, roughly select in rear slurry to described second iron and add described collecting agent butyl xanthate and No. 25 black powder, the quality adding described butyl xanthate in described height leaching slag per ton is 600g, the quality adding described No. 25 black powder in described height leaching slag per ton is 200g, the collecting time is 4-10min, scraping the bubble time is 4-10min, scraping the bubble frequency is 2s/ time, in floatation process, medium stirring intensity, first obtains lead concentrate after roughly selecting end and first lead roughly selects rear slurry,
Second is roughly selected: at ambient temperature, roughly select in rear slurry to described first lead and add described butyl xanthate and described No. 25 black powder, the quality adding described butyl xanthate in described height leaching slag per ton is 400g, the quality adding described No. 25 black powder in described height leaching slag per ton is 100g, and the collecting time is 4-10min, and scraping the bubble time is 4-10min, scraping the bubble frequency is 2s/ time, in floatation process, medium stirring intensity, first obtains described lead concentrate and tailings after roughly selecting end.
5. the height from wet method zinc abstraction output according to claim 4 soaks the method for extraction and isolation valuable metal slag, it is characterized in that, described height leaching slag is lead smelting gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510084538.XA CN104722410B (en) | 2015-02-16 | 2015-02-16 | The method that separating valuable metals are extracted from the high acid leach residue of wet method zinc abstraction output |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510084538.XA CN104722410B (en) | 2015-02-16 | 2015-02-16 | The method that separating valuable metals are extracted from the high acid leach residue of wet method zinc abstraction output |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104722410A true CN104722410A (en) | 2015-06-24 |
| CN104722410B CN104722410B (en) | 2017-09-19 |
Family
ID=53447176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510084538.XA Active CN104722410B (en) | 2015-02-16 | 2015-02-16 | The method that separating valuable metals are extracted from the high acid leach residue of wet method zinc abstraction output |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104722410B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105964408A (en) * | 2015-11-02 | 2016-09-28 | 武汉科技大学 | Flotation method for recovering lead sulphate from lead-silver slag |
| CN108380396A (en) * | 2018-03-02 | 2018-08-10 | 电子科技大学中山学院 | Composite beneficiation reagent based on chemical production |
| CN111979412A (en) * | 2020-07-10 | 2020-11-24 | 华南师范大学 | Method for recovering lead and zinc in copper-sulfur tailings |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101914682A (en) * | 2010-08-16 | 2010-12-15 | 胡学勇 | Method for recovering Zn, Pb and Ag from electrolytic zinc acid leaching slag |
| CN101972703A (en) * | 2010-10-27 | 2011-02-16 | 株洲市湘麒科技开发有限公司 | Beneficiation method for recovering zinc, lead and silver from zinc leaching residue |
| CN102899499A (en) * | 2012-09-28 | 2013-01-30 | 湖南水口山有色金属集团有限公司 | Process and device for recovering noble metals of zinc smelting acid leaching residues |
| CN202921427U (en) * | 2012-09-28 | 2013-05-08 | 湖南水口山有色金属集团有限公司 | Flotation recycling gold and sliver device from zinc smelting acid leaching dregs |
| CN103215435A (en) * | 2013-04-27 | 2013-07-24 | 湖南水口山有色金属集团有限公司 | Method for comprehensively recycling zinc, copper, lead, gold, silver and sulfur from floatation silver concentrate |
| CN103521504A (en) * | 2013-10-25 | 2014-01-22 | 赤峰中色锌业有限公司 | Method for comprehensively recovering gold and zinc from high leaching residue and recycling wastewater |
-
2015
- 2015-02-16 CN CN201510084538.XA patent/CN104722410B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101914682A (en) * | 2010-08-16 | 2010-12-15 | 胡学勇 | Method for recovering Zn, Pb and Ag from electrolytic zinc acid leaching slag |
| CN101972703A (en) * | 2010-10-27 | 2011-02-16 | 株洲市湘麒科技开发有限公司 | Beneficiation method for recovering zinc, lead and silver from zinc leaching residue |
| CN102899499A (en) * | 2012-09-28 | 2013-01-30 | 湖南水口山有色金属集团有限公司 | Process and device for recovering noble metals of zinc smelting acid leaching residues |
| CN202921427U (en) * | 2012-09-28 | 2013-05-08 | 湖南水口山有色金属集团有限公司 | Flotation recycling gold and sliver device from zinc smelting acid leaching dregs |
| CN103215435A (en) * | 2013-04-27 | 2013-07-24 | 湖南水口山有色金属集团有限公司 | Method for comprehensively recycling zinc, copper, lead, gold, silver and sulfur from floatation silver concentrate |
| CN103521504A (en) * | 2013-10-25 | 2014-01-22 | 赤峰中色锌业有限公司 | Method for comprehensively recovering gold and zinc from high leaching residue and recycling wastewater |
Non-Patent Citations (1)
| Title |
|---|
| 李龙等: "从湿法炼锌高浸渣回收银锌的生产实践", 《中国有色冶金》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105964408A (en) * | 2015-11-02 | 2016-09-28 | 武汉科技大学 | Flotation method for recovering lead sulphate from lead-silver slag |
| CN108380396A (en) * | 2018-03-02 | 2018-08-10 | 电子科技大学中山学院 | Composite beneficiation reagent based on chemical production |
| CN111979412A (en) * | 2020-07-10 | 2020-11-24 | 华南师范大学 | Method for recovering lead and zinc in copper-sulfur tailings |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104722410B (en) | 2017-09-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106868306B (en) | A kind of method of zinc leaching residue valuable metal high efficiente callback | |
| CN104404261B (en) | The method of gold recovering, iron is synchronously reduced in the chloridizing roasting of a kind of refined gold ore cyaniding tailings | |
| CN101961673B (en) | Combined concentration and smelting method for mixed copper ore | |
| CN100411997C (en) | Method of recovering manganese sulfate from low-grade manganese carbonate and manganese oxide | |
| CN104531988B (en) | A kind of recovery process of difficult complex multi-metal ore deposit | |
| CN101935768B (en) | Method for comprehensively recovering carbon from extraction of vanadium from stone coal | |
| CN103937977A (en) | Comprehensive recovery process of arsenic/antimony-containing gold concentrate | |
| CN102277483A (en) | New method for preparing rare earth chloride by using Baiyunebo rare earth concentrate | |
| CN106086426B (en) | A kind of arsenic sulfide slag hyperbaric oxygen continuously leaches resource utilization process | |
| CN101348868A (en) | Method for recovering tungsten and molybdenum from phosphor middling | |
| WO2018161651A1 (en) | Beneficiation method for mixed copper ore with low oxidation rate and high binding rate | |
| CN102676805B (en) | Low grade zinc concentrate associated lead and silver recovery process | |
| CN103243349A (en) | Comprehensive zinc hydrometallurgy recovery system technique | |
| CN104722410A (en) | Method for extracting and separating valuable metal from hot-acid leaching residues produced by wet-process zinc smelting | |
| CN101612606B (en) | Method for comprehensively reclaming quartz vein polymetallic oxidized ore resources | |
| CN109266842B (en) | Method for removing arsenic from copper ore | |
| CN106834674A (en) | Method for oxygen pressure leaching of uranium and molybdenum from uranium molybdenum ore | |
| CN101705364A (en) | Comprehensive recycling technology of high-charcoal molybdenum-containing gold and silver ore | |
| CN103966433A (en) | Method for extracting copper, gold and silver from copper oxide ore | |
| CN106756129A (en) | A kind of method that uranium is extracted from stone containing betafite | |
| CN106893862A (en) | A kind of processing method of zinc leaching residue | |
| CN103773952B (en) | The method of Leaching of Gold from auriferous pyrite concentrate | |
| CN103966434A (en) | Method for producing copper concentrate by using copper oxide ore or copper slag | |
| CN106882839A (en) | Method for comprehensively utilizing titanium white waste acid | |
| CN106882838A (en) | Method for producing titanium dioxide by using waste acid self-circulation non-blast furnace titanium slag sulfuric acid method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |