CN110343868A - The recovery method of valuable element in a kind of multi-metal oxygen mine leached tailings - Google Patents
The recovery method of valuable element in a kind of multi-metal oxygen mine leached tailings Download PDFInfo
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- CN110343868A CN110343868A CN201910734167.3A CN201910734167A CN110343868A CN 110343868 A CN110343868 A CN 110343868A CN 201910734167 A CN201910734167 A CN 201910734167A CN 110343868 A CN110343868 A CN 110343868A
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- tailings
- metal oxygen
- valuable element
- recovery method
- mine
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- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000011084 recovery Methods 0.000 title claims abstract description 16
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 239000002184 metal Substances 0.000 title claims abstract description 15
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 15
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 15
- 239000001301 oxygen Substances 0.000 title claims abstract description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 52
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229910052737 gold Inorganic materials 0.000 claims abstract description 30
- 239000010931 gold Substances 0.000 claims abstract description 30
- 229910052742 iron Inorganic materials 0.000 claims abstract description 26
- 238000002156 mixing Methods 0.000 claims abstract description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000012141 concentrate Substances 0.000 claims abstract description 14
- 239000002002 slurry Substances 0.000 claims abstract description 14
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 10
- 238000000227 grinding Methods 0.000 claims abstract description 9
- 238000004513 sizing Methods 0.000 claims abstract description 8
- 239000004576 sand Substances 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 3
- 238000003723 Smelting Methods 0.000 claims abstract 2
- 238000003795 desorption Methods 0.000 claims abstract 2
- 238000004070 electrodeposition Methods 0.000 claims abstract 2
- 238000002386 leaching Methods 0.000 claims description 33
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 claims description 24
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 claims description 13
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 5
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 5
- 239000004571 lime Substances 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims 1
- 238000000926 separation method Methods 0.000 claims 1
- MNWBNISUBARLIT-UHFFFAOYSA-N sodium cyanide Chemical compound [Na+].N#[C-] MNWBNISUBARLIT-UHFFFAOYSA-N 0.000 claims 1
- 238000003756 stirring Methods 0.000 claims 1
- 229910052709 silver Inorganic materials 0.000 abstract description 24
- 239000004332 silver Substances 0.000 abstract description 24
- 238000004064 recycling Methods 0.000 abstract description 8
- 230000005484 gravity Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 241000416536 Euproctis pseudoconspersa Species 0.000 abstract 1
- XKGUKYPCHPHAJL-UHFFFAOYSA-N methanetetracarbonitrile Chemical compound N#CC(C#N)(C#N)C#N XKGUKYPCHPHAJL-UHFFFAOYSA-N 0.000 abstract 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 21
- 238000007885 magnetic separation Methods 0.000 description 3
- 239000003610 charcoal Substances 0.000 description 2
- KXZJHVJKXJLBKO-UHFFFAOYSA-N chembl1408157 Chemical compound N=1C2=CC=CC=C2C(C(=O)O)=CC=1C1=CC=C(O)C=C1 KXZJHVJKXJLBKO-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229910001608 iron mineral Inorganic materials 0.000 description 1
- OVMJVEMNBCGDGM-UHFFFAOYSA-N iron silver Chemical compound [Fe].[Ag] OVMJVEMNBCGDGM-UHFFFAOYSA-N 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 150000003378 silver Chemical class 0.000 description 1
- 229910001739 silver mineral Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
-
- 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
- C22B11/00—Obtaining noble metals
- C22B11/04—Obtaining noble metals by wet processes
- C22B11/042—Recovery of noble metals from waste materials
-
- 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
- C22B11/00—Obtaining noble metals
- C22B11/08—Obtaining noble metals by cyaniding
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/04—Working-up slag
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a kind of recovery methods of valuable element in multi-metal oxygen mine leached tailings, dry tailing generated during all sliming cyanidation carbon slurry process is stirred in mixing cirtern by a certain percentage with water, it sizes mixing, by hydroclone classification desliming, cyclone overflow portion is as true tailings, hydrocyclone sand enters shaking table after sizing mixing and carries out gravity treatment, shaking table tailing is incorporated to cyclone classification overflow, shaking table chats is incorporated to cyclone and gives mine mixing cirtern, using cyanide carbon pulp technique recycling gold after table concentrate fine grinding, silver, gold loaded carbon is by desorption electrodeposition, smelting technology obtains gold containing material, close matter silver, leached tailings are qualified iron ore concentrate.
Description
Technical field
The present invention relates to valuable element recovery method technical fields, and in particular in a kind of multi-metal oxygen mine leached tailings
The recovery method of valuable element.
Background technique
For Yunnan gold and silver iron multi-metal oxygen ore, using " all sliming cyanidation charcoal slurry+magnetic separation ", technique is back and forth at this stage
The valuable element gold, silver and iron in ore are received, which is designed mainly for the valuable element gold in recycling ore, because
This silver, the rate of recovery of iron is relatively low, comprehensive resource utilization rate is low, and valuable element silver, the iron in ore are not recycled effectively, tailings
Middle valuable element silver, the higher problem of iron content.
In the technique that " all sliming cyanidation charcoal slurry+magnetic separation " recycles gold, silver and iron, in order to improve Au-Ag leaching rate, using thin
It grinds (- 0.045mm grain size content >=85%) and carries out Cyanide Leaching, since iron mineral is there are overground phenomenon, and existing magnetic plant pair
The recovering effect of fine particle stage material is bad, causes the rate of recovery of iron during magnetic separation lower.And due to the disseminated grain size of silver mineral
Carefully, it is wrapped in limonite, magnetic iron ore and other mineral, therefore cyanide leaching is lower, only 30% or so.
Summary of the invention
For this technical problem, the present invention provides a kind of recycling of valuable element in multi-metal oxygen mine leached tailings
Method, specific technical solution are as follows:
The recovery method of valuable element in a kind of multi-metal oxygen mine leached tailings, comprising the following steps:
Step A: dry tailing generated during all sliming cyanidation carbon slurry process and water are stirred in mixing cirtern；
Step B: being put into hydrocyclone internal classification desliming for ore pulp, and cyclone overflow portion enters step X as true tailings,
Hydrocyclone sand enters step C and carries out table concentration after sizing mixing；
Step C: shaking table tailing enters step X as true tailings, and shaking table middling recurrence step A sizes mixing, table concentrate into
Enter step D；
Step D: table concentrate enters ball mill fine grinding；
Step E: after table concentrate is finely ground, into hydrocyclone internal classification desliming, hydrocyclone sand is entered step in D, rotation
Stream device overflow portion enters step F；
Step F: cyclone overflow portion adds lime after sizing mixing, in ore pulp and pH is adjusted, and adds Cymag, is put into and stirs
It mixes and carries out Cyanide Leaching in leaching tanks；
Step G: after 4 hours of leaching, active carbon is added, continues 26 hours of Cyanide Leaching, phase analysis is iron ore concentrate；
Step H: after Cyanide Leaching, carrying out desorption electrodeposition to active carbon, and obtained gold mud is smelting with after separation, obtains gold containing material
It is silver-colored with matter is closed；
Step X: true tailings is concentrated, after filters pressing, obtains final tailings.
It may further be preferable that concentration of sizing mixing is 25%~30% in the step A.
It may further be preferable that ball mill fine grinding requires to be that -0.037mm accounts for 90% or more in the step D.
It may further be preferable that concentration of sizing mixing is 30%~35% in the step F.
It may further be preferable that adding lime in the step F, in ore pulp adjusts pH value to 11~12.
It may further be preferable that initial cyanogen root concentration is 6~7 in the step F.
It may further be preferable that the concentration of activated carbon of addition is 15g/L in the step G.
It may further be preferable that tested per hour in the step F and step G, in leaching process a slurry pH and
Cyanogen root concentration, is maintained at slurry pH between 9.5~11, and cyanogen root concentration is maintained between 3~5.
After tailings is sorted using the process flow, gold, silver and iron in tailings have obtained obvious enrichment, shaking table essence
Mine gold grade be 1.57g/t, silver-colored grade be 68.21g/t, Iron grade 60.52%, after iron ore concentrate fine grinding, Cyanide Leaching gold, silver
Leaching rate it is good, gold leaching rate 92.36%, silver leaching rate 63.47%.As it can be seen that the valuable element in tailings is had
Effect recycling.The method of the present invention is a kind of method of gold, silver and iron in high efficiente callback tailings, suitable for returning from all sliming cyanidation tailings
Receive gold, silver and iron.Effective solution cyanide leaching lower problem in the prior art.
Detailed description of the invention
Fig. 1 is invented technology flow chart.
Specific embodiment
Embodiment 1
Research tailings sample is derived from the dry heap sample of Yunnan gold mine all sliming cyanidation carbon slurry process factory Tailings Dam, obtains by sample examination
Gold, silver and Iron grade in tailings are respectively 0.22g/t, 18.46g/t and 20.28%.It is 25% or so that tailings, which is sized mixing to concentration,
Afterwards, using hydrocyclone carry out graded desliming, sand setting using shaking table carry out gravity treatment, table concentrate by ball mill fine grinding (-
0.037mm is accounted for 90.50%) size mixing after (pulp density 30%) be added stirred leaching tank carry out Cyanide Leaching, ore pulp add lime
PH value is adjusted to 11, then adds a certain amount of sodium cyanide solution, initial cyanogen root concentration is 6,4 hours of leaching, is added
The active carbon for adding 15g/l concentration then proceedes to 26 hours of Cyanide Leaching, to test a pH values of pulp per hour in leaching process
Value and cyanogen root concentration, make slurry pH be maintained at 9.5, cyanogen root concentration is maintained at 3.
The experimental results are shown inthe following table.
According to the experimental results, after protocercal tail slag is sorted using the process flow, gold, silver and iron in tailings are obtained
Obvious enrichment, table concentrate gold grade are 1.75g/t, and silver-colored grade is 73.84g/t, Iron grade 61.67%, iron ore concentrate fine grinding
Afterwards, the leaching rate of Cyanide Leaching gold, silver is good, gold leaching rate 92.57%, silver leaching rate 64.94%.As it can be seen that in tailings
Valuable element has obtained effective recycling.Illustrate that the method for the present invention is a kind of method of gold, silver and iron in high efficiente callback tailings, is applicable in
In recycling gold, silver and iron from all sliming cyanidation tailings.
Embodiment 2
Research tailings sample is derived from Yunnan gold mine all sliming cyanidation carbon slurry process factory Tailings Slurry (concentration 30%), by sample examination
Show that gold, silver and Iron grade in tailings are respectively 0.18g/t, 17.21g/t and 18.56%.Ore pulp using hydrocyclone into
Row graded desliming, sand setting carry out gravity treatment using shaking table, and table concentrate is sized mixing by ball mill fine grinding (- 0.037mm accounts for 90.15%)
(pulp density 35%) is added stirred leaching tank and carries out Cyanide Leaching afterwards, and ore pulp adds lime and adjusts pH value to 12, then adds
A certain amount of sodium cyanide solution, initial cyanogen root concentration are 6-7, and 4 hours of leaching add the active carbon of 15g/l concentration,
It then proceedes to 26 hours of Cyanide Leaching, test a slurry pH and cyanogen root concentration per hour in leaching process, make pH values of pulp
Value is maintained at 11, and cyanogen root concentration is maintained at 5.
The experimental results are shown inthe following table.
According to the experimental results, after protocercal tail slag is sorted using the process flow, gold, silver and iron in tailings are obtained
Obvious enrichment, table concentrate gold grade are 1.57g/t, and silver-colored grade is 68.21g/t, Iron grade 60.52%, iron ore concentrate fine grinding
Afterwards, the leaching rate of Cyanide Leaching gold, silver is good, gold leaching rate 92.36%, silver leaching rate 63.47%.As it can be seen that in tailings
Valuable element has obtained effective recycling.Illustrate that the method for the present invention is a kind of method of gold, silver and iron in high efficiente callback tailings, is applicable in
In recycling gold, silver and iron from all sliming cyanidation tailings.
Claims (8)
1. the recovery method of valuable element in a kind of multi-metal oxygen mine leached tailings, which comprises the following steps:
Step A: dry tailing generated during all sliming cyanidation carbon slurry process and water are stirred in mixing cirtern；
Step B: being put into hydrocyclone internal classification desliming for ore pulp, and cyclone overflow portion enters step X as true tailings,
Hydrocyclone sand enters step C and carries out table concentration after sizing mixing；
Step C: shaking table tailing enters step X as true tailings, and shaking table middling recurrence step A sizes mixing, table concentrate into
Enter step D；
Step D: table concentrate enters ball mill fine grinding；
Step E: after table concentrate is finely ground, into hydrocyclone internal classification desliming, hydrocyclone sand is entered step in D, rotation
Stream device overflow portion enters step F；
Step F: cyclone overflow portion adds lime after sizing mixing, in ore pulp and pH is adjusted, and adds Cymag, is put into and stirs
It mixes and carries out Cyanide Leaching in leaching tanks；
Step G: after 4 hours of leaching, active carbon is added, continues 26 hours of Cyanide Leaching, phase analysis is iron ore concentrate；
Step H: after Cyanide Leaching, carrying out desorption electrodeposition to active carbon, and obtained gold mud is smelting with after separation, obtains gold containing material
It is silver-colored with matter is closed；
Step X: true tailings is concentrated, after filters pressing, obtains final tailings.
2. the recovery method of valuable element, feature exist in a kind of multi-metal oxygen mine leached tailings as described in claim 1
In in the step A, concentration of sizing mixing is 25%~30%.
3. the recovery method of valuable element, feature exist in a kind of multi-metal oxygen mine leached tailings as described in claim 1
In in the step D, ball mill fine grinding requires to be that -0.037mm accounts for 90% or more.
4. the recovery method of valuable element, feature exist in a kind of multi-metal oxygen mine leached tailings as described in claim 1
In in the step F, concentration of sizing mixing is 30%~35%.
5. the recovery method of valuable element, feature exist in a kind of multi-metal oxygen mine leached tailings as described in claim 1
In in the step F, addition lime adjusts pH value to 11~12 in ore pulp.
6. the recovery method of valuable element, feature exist in a kind of multi-metal oxygen mine leached tailings as described in claim 1
In in the step F, initial cyanogen root concentration is 6~7.
7. the recovery method of valuable element, feature exist in a kind of multi-metal oxygen mine leached tailings as described in claim 1
In in the step G, the concentration of activated carbon of addition is 15g/L.
8. the recovery method of valuable element, feature exist in a kind of multi-metal oxygen mine leached tailings as described in claim 1
In a slurry pH and cyanogen root concentration are tested in the step F and step G, in leaching process per hour, protects slurry pH
It holds between 9.5~11, cyanogen root concentration is maintained between 3~5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910734167.3A CN110343868A (en) | 2019-08-09 | 2019-08-09 | The recovery method of valuable element in a kind of multi-metal oxygen mine leached tailings |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910734167.3A CN110343868A (en) | 2019-08-09 | 2019-08-09 | The recovery method of valuable element in a kind of multi-metal oxygen mine leached tailings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110343868A true CN110343868A (en) | 2019-10-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910734167.3A Pending CN110343868A (en) | 2019-08-09 | 2019-08-09 | The recovery method of valuable element in a kind of multi-metal oxygen mine leached tailings |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112958269A (en) * | 2021-03-24 | 2021-06-15 | 武定泽源矿业有限公司 | Sand ilmenite tailing separation system and treatment process |
| CN113304868A (en) * | 2021-04-22 | 2021-08-27 | 浙江省遂昌金矿有限公司 | Integrated process for washing, dehydrating and reducing cyanogen of gold ore cyanidation tailings |
| CN113416849A (en) * | 2021-06-09 | 2021-09-21 | 金隆铜业有限公司 | Method for recovering copper from copper smelting soot |
| CN114308396A (en) * | 2021-11-30 | 2022-04-12 | 招远市招金金合科技有限公司 | Method for high-value utilization of sulfur, iron and gold in cyanidation tailings |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112958269A (en) * | 2021-03-24 | 2021-06-15 | 武定泽源矿业有限公司 | Sand ilmenite tailing separation system and treatment process |
| CN113304868A (en) * | 2021-04-22 | 2021-08-27 | 浙江省遂昌金矿有限公司 | Integrated process for washing, dehydrating and reducing cyanogen of gold ore cyanidation tailings |
| CN113304868B (en) * | 2021-04-22 | 2024-02-13 | 浙江省遂昌金矿有限公司 | Integrated technology for washing, dehydrating and reducing cyanide of gold mine cyanide tailings |
| CN113416849A (en) * | 2021-06-09 | 2021-09-21 | 金隆铜业有限公司 | Method for recovering copper from copper smelting soot |
| CN114308396A (en) * | 2021-11-30 | 2022-04-12 | 招远市招金金合科技有限公司 | Method for high-value utilization of sulfur, iron and gold in cyanidation tailings |
| CN114308396B (en) * | 2021-11-30 | 2024-01-12 | 招远市招金金合科技有限公司 | Method for high-value utilization of sulfur, iron and gold in cyanidation tailings |
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