CN108823406A - A kind of method that low-grade gold infiltration extracts gold from - Google Patents
A kind of method that low-grade gold infiltration extracts gold from Download PDFInfo
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- CN108823406A CN108823406A CN201810699489.4A CN201810699489A CN108823406A CN 108823406 A CN108823406 A CN 108823406A CN 201810699489 A CN201810699489 A CN 201810699489A CN 108823406 A CN108823406 A CN 108823406A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
- C22B3/12—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic alkaline solutions
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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
- C22B11/00—Obtaining noble metals
- C22B11/08—Obtaining noble metals by cyaniding
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/22—Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means, or by thermal decomposition
- C22B3/24—Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means, or by thermal decomposition by adsorption on solid substances, e.g. by extraction with solid resins
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
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- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
A kind of method that low-grade gold infiltration extracts gold from, steps are as follows：A, gold ore pre-processes：Crushing and screening is carried out after the gold mine of acquisition is removed the sundries such as clay, the silt on gold mine surface, the ratio mixing of addition white lime of the granularity less than 70mm is chosen, stirs evenly acquisition mixture, mixture is carried out to build heap formation ore storage；B, size is modulated：It adjusts solvent progress PH to form the alkaline solution that pH value is 10-12, Cymag is added and obtains size；C, it sprays：Size uninterruptedly sprays ore storage, your liquid obtained；D, gold loaded carbon is obtained：Your liquid pump is entered into the adsorption column filled with active carbon, being drawn containing gold complex by active carbon in your liquid obtains gold loaded carbon and the lower lean solution of gold content, step b, c and d operation are repeated after lean solution recovery processing；E, elemental gold is obtained：Processing is carried out to the gold loaded carbon generated in step d and obtains elemental gold.
Description
Technical field
The present invention relates to a kind of low-grade golds to infiltrate the method to extract gold from, belongs to gold smelting technical field.
Background technique
Dump leaching gold-extracting technological advantage has the low-grade gold containing ore that is capable of handling and cannot handle using conventional extraction of gold process,
Therefore the raw material sources of dump leaching gold-extracting are wider, this includes new mined gold containing ore, the poor value stacked in the past, mine
Exploit the barren rock etc. low containing golden country rock and Gold grade being stripped out in mountain.The ore of current most of dump leaching gold-extractings is from outdoor
The ore that the gold mine of exploitation, mostly ore body top are oxidized.Ore type has quartz vein oxide ore, siliceous siltstone, in crack
Dip dyeing gold vent breccia, liparite, silication siltstone in limestone etc..
Low-grade gold accounting in gold output in China's is larger, puts forth effort to study a kind of low cost, scale treating capacity compared with
Big efficient gold dump leaching extracting method is particularly important.
Summary of the invention
It is an object of the invention to：A kind of method that low-grade gold infiltration extracts gold from, to solve the above problems.
In order to achieve the above objectives, using following technical scheme：A kind of method that low-grade gold infiltration extracts gold from, step
It is as follows：
A, gold ore pre-processes：Grinding screen is carried out after the sundries such as clay, the silt on gold mine removal gold mine surface by acquisition
Choosing, repetition of the selection granularity greater than 70mm crush, and granularity is less than 70mm by addition 1.5kg in 1t gold ore to 8kg white lime
Ratio mixing, stir evenly acquisition mixture, mixture build heap in dump leaching field and forms ore storage；
B, size is modulated：It adjusts solvent progress PH to form the alkaline solution that pH value is 10-12, alkaline solution is pumped into
Multiple liquid pool is added Cymag and obtains size；
C, it sprays：The size modulated in step b uninterruptedly sprays the ore storage that heap formation is built in step a,
Size after spray forms your liquid gold-containing solution is known as through ore storage, your liquid is flowed by the collection conduit of dump leaching field bottom
Your liquid pool；
D, gold loaded carbon is obtained：Your liquid pump obtained in step c is entered into the adsorption column filled with active carbon, contains gold in your liquid
Complex compound is drawn by active carbon, forms gold loaded carbon, your the liquid gold content after being adsorbed substantially reduces, and the lower solution of gold content claims
For lean solution, step b, c and d operation are repeated after lean solution recovery processing；
E, elemental gold is obtained：Processing is carried out to the gold loaded carbon generated in step d and obtains elemental gold.
The heap of building is in such a way that heap is built in layering.
The ore stack height is 3-5 meters.
The size is modulated in the ratio of 1 cubic metre of aqueous solution addition 100 to 250g Cymag.
The flow of size is every square metre of 5-12L/min when the spray.
Lean solution recovery processing is that calcium ion carries out precipitation process and purified treatment, and the purified treatment is to clarify, at filtering
Reason.
The solvent of the size modulation is the lean solution after water or recovery processing.
Size is also added into scale remover, additive amount 6-9mg/L when modulating.
The scale remover is high alkalinity calcium and magnesium stabilizer.
The gold loaded carbon processing obtains elemental gold using the method for desorption, electrolysis and melting.
The beneficial effect that the present invention obtains：
(1) size is added with scale remover, can effectively reduce the adsorption capacity of calcium ion effect active carbon, improves again golden charcoal
Adsorption efficiency.
(2) consumption that low production cost is reduced to Cymag is recycled to lean solution, it is heavy to calcium ion when recycling
Shallow lake processing, then clarification filtration guarantor avoids size from resulting in blockage spray system.
(3) method that gold loaded carbon processing uses desorption, electrolysis and melting obtains elemental gold, and gold obtains high-efficient, load gold
Charcoal also recoverable economizes on resources.
Detailed description of the invention
Fig. 1 is flow chart of the present invention.
Specific embodiment
With reference to the accompanying drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that is retouched
The embodiment stated is only a part of the embodiment of the present invention, instead of all the embodiments.
Refering to fig. 1, a kind of low-grade gold infiltrates the method to extract gold from, and steps are as follows：
A, gold ore pre-processes：Grinding screen is carried out after the sundries such as clay, the silt on gold mine removal gold mine surface by acquisition
Choosing, repetition of the selection granularity greater than 70mm crush, and granularity is less than 70mm by addition 1.5kg in 1t gold ore to 8kg white lime
Ratio mixing, stirs evenly acquisition mixture, and mixture is carried out to build heap formation ore storage in dump leaching field；
B, size is modulated：It adjusts solvent progress PH to form the alkaline solution that pH value is 10-12, alkaline solution is pumped into
Cymag is added in multiple liquid pool, obtains size；
C, it sprays：The size modulated in step b uninterruptedly sprays the ore storage that heap formation is built in step a,
Size after spray forms your liquid gold-containing solution is known as through ore storage, your liquid is flowed by the collection conduit of dump leaching field bottom
Your liquid pool；
D, gold loaded carbon is obtained：Your liquid pump obtained in step c is entered into the adsorption column filled with active carbon, contains gold in your liquid
Complex compound is drawn by active carbon, forms gold loaded carbon, your the liquid gold content after being adsorbed substantially reduces, and the lower solution of gold content claims
For lean solution, step b, c and d operation are repeated after lean solution recovery processing；
E, elemental gold is obtained：Processing is carried out to the gold loaded carbon generated in step d and obtains elemental gold.
The heap of building is in such a way that heap is built in layering.
The ore stack height is 3-5 meters.
The size is modulated in the ratio of 1 cubic metre of aqueous solution addition 100 to 250g Cymag.
The flow of size is every square metre of 5-12L/min when the spray.
Lean solution recovery processing is that calcium ion carries out precipitation process and purified treatment, and the purified treatment is to clarify, at filtering
Reason.
The solvent of the size modulation is the lean solution after water or recovery processing.
Size is also added into scale remover, additive amount 6-9mg/L when modulating.
The scale remover is high alkalinity calcium and magnesium stabilizer.
The gold loaded carbon processing obtains elemental gold using the method for desorption, electrolysis and melting.
The beneficial effect that the present invention obtains：
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of low-grade gold infiltrates the method to extract gold from, it is characterised in that：Steps are as follows：
A, gold ore pre-processes：Crushing and screening is carried out after the sundries such as clay, the silt on gold mine removal gold mine surface by acquisition, is selected
Repetition of the granularity greater than 70mm is taken to crush, granularity is less than 70mm in the ratio that 1.5kg to 8kg white lime is added in 1t gold ore
Mixing, stirs evenly acquisition mixture, and mixture is carried out to build heap formation ore storage in dump leaching field；
B, size is modulated：It adjusts solvent progress PH to form the alkaline solution that pH value is 10-12, alkaline solution is pumped into multiple liquid
Pond is added Cymag and obtains size；
C, it sprays：The size modulated in step b uninterruptedly sprays the ore storage for building heap formation in step a, sprays
Size afterwards forms your liquid gold-containing solution is known as through ore storage, your liquid flowed by the collection conduit of dump leaching field bottom for your liquid
Pond；
D, gold loaded carbon is obtained：Your liquid pump obtained in step c is entered into the adsorption column filled with active carbon, the complexing containing gold in your liquid
Object is drawn by active carbon, forms gold loaded carbon, your the liquid gold content after being adsorbed substantially reduces, and the lower solution of gold content is referred to as poor
Liquid repeats step b, c and d operation after lean solution recovery processing；
E, elemental gold is obtained：Processing is carried out to the gold loaded carbon generated in step d and obtains elemental gold.
2. low-grade gold according to claim 1 infiltrates the method to extract gold from, it is characterised in that：It is described to build heap use
The mode of heap is built in layering.
3. low-grade gold according to claim 1 infiltrates the method to extract gold from, it is characterised in that：The ore storage is high
Degree is 3-5 meters.
4. low-grade gold according to claim 1 infiltrates the method to extract gold from, it is characterised in that：The size is pressed
The ratio of 1 cubic metre of aqueous solution addition 100 to 250g Cymag is modulated.
5. low-grade gold according to claim 1 infiltrates the method to extract gold from, it is characterised in that：It is soaked when the spray
The flow for moistening agent is every square metre of 5-12L/min.
6. low-grade gold according to claim 1 infiltrates the method to extract gold from, it is characterised in that：Lean solution recovery processing
Precipitation process and purified treatment are carried out for calcium ion, the purified treatment is clarification, filtration treatment.
7. infiltrating the method to extract gold from low-grade gold described in 6 according to claim 1, it is characterised in that：The infiltration
The solvent of agent modulation is the lean solution after water or recovery processing.
8. low-grade gold according to claim 1 infiltrates the method to extract gold from, it is characterised in that：When size is modulated
It is also added into scale remover, additive amount 6-9mg/L.
9. low-grade gold according to claim 8 infiltrates the method to extract gold from, it is characterised in that：The scale remover is
High alkalinity calcium and magnesium stabilizer.
10. low-grade gold according to claim 1 infiltrates the method to extract gold from, it is characterised in that：The gold loaded carbon
Processing obtains elemental gold using the method for desorption, electrolysis and melting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810699489.4A CN108823406A (en) | 2018-06-29 | 2018-06-29 | A kind of method that low-grade gold infiltration extracts gold from |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810699489.4A CN108823406A (en) | 2018-06-29 | 2018-06-29 | A kind of method that low-grade gold infiltration extracts gold from |
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| CN108823406A true CN108823406A (en) | 2018-11-16 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112058882A (en) * | 2020-08-22 | 2020-12-11 | 长春黄金研究院有限公司 | Closed pile ecological restoration method for gold ore heap leaching field |
| CN113122731A (en) * | 2021-04-12 | 2021-07-16 | 东北大学 | Interactive heap construction biological oxidation-gold extraction method for refractory gold ore |
| CN113122714A (en) * | 2019-12-31 | 2021-07-16 | 辽宁省国望技术服务有限公司 | Biological heap leaching gold extraction method for low-grade gold ore |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105567993A (en) * | 2015-12-29 | 2016-05-11 | 安徽牛山新型材料科技有限公司 | Beneficiation method for low grade oxidized type gold and silver contained tailings |
-
2018
- 2018-06-29 CN CN201810699489.4A patent/CN108823406A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105567993A (en) * | 2015-12-29 | 2016-05-11 | 安徽牛山新型材料科技有限公司 | Beneficiation method for low grade oxidized type gold and silver contained tailings |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113122714A (en) * | 2019-12-31 | 2021-07-16 | 辽宁省国望技术服务有限公司 | Biological heap leaching gold extraction method for low-grade gold ore |
| CN112058882A (en) * | 2020-08-22 | 2020-12-11 | 长春黄金研究院有限公司 | Closed pile ecological restoration method for gold ore heap leaching field |
| CN113122731A (en) * | 2021-04-12 | 2021-07-16 | 东北大学 | Interactive heap construction biological oxidation-gold extraction method for refractory gold ore |
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Application publication date: 20181116 |