CN109939813A - The secondary enrichment comprehensive recovering process of sulphur silver ferrimanganic valuable element in a kind of tailing - Google Patents
The secondary enrichment comprehensive recovering process of sulphur silver ferrimanganic valuable element in a kind of tailing Download PDFInfo
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- CN109939813A CN109939813A CN201910333848.9A CN201910333848A CN109939813A CN 109939813 A CN109939813 A CN 109939813A CN 201910333848 A CN201910333848 A CN 201910333848A CN 109939813 A CN109939813 A CN 109939813A
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- silver
- tailing
- concentrate
- iron
- sulphur
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- PGWMQVQLSMAHHO-UHFFFAOYSA-N sulfanylidenesilver Chemical compound [Ag]=S PGWMQVQLSMAHHO-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 32
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 103
- 239000012141 concentrate Substances 0.000 claims abstract description 59
- 229910052742 iron Inorganic materials 0.000 claims abstract description 51
- 238000005188 flotation Methods 0.000 claims abstract description 43
- 238000004064 recycling Methods 0.000 claims abstract description 32
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 28
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229940083025 silver preparation Drugs 0.000 claims abstract description 19
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 18
- 239000011707 mineral Substances 0.000 claims abstract description 18
- 230000003647 oxidation Effects 0.000 claims abstract description 17
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 17
- 239000011593 sulfur Substances 0.000 claims abstract description 15
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 15
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 11
- 239000011572 manganese Substances 0.000 claims abstract description 11
- 230000005291 magnetic effect Effects 0.000 claims abstract description 10
- 238000007885 magnetic separation Methods 0.000 claims abstract description 10
- 238000011084 recovery Methods 0.000 claims abstract description 10
- 229910052709 silver Inorganic materials 0.000 claims description 11
- 239000004332 silver Substances 0.000 claims description 11
- 239000006148 magnetic separator Substances 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 5
- 230000005484 gravity Effects 0.000 claims description 4
- 238000010301 surface-oxidation reaction Methods 0.000 claims description 4
- 239000002562 thickening agent Substances 0.000 claims description 4
- 230000002411 adverse Effects 0.000 claims description 2
- 239000000686 essence Substances 0.000 claims 1
- 238000010408 sweeping Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 5
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 abstract description 3
- 239000002893 slag Substances 0.000 abstract description 3
- 238000003860 storage Methods 0.000 abstract description 3
- 238000003786 synthesis reaction Methods 0.000 abstract description 3
- 239000005864 Sulphur Substances 0.000 description 13
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000011133 lead Substances 0.000 description 2
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 description 2
- 230000031068 symbiosis, encompassing mutualism through parasitism Effects 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 229910052683 pyrite Inorganic materials 0.000 description 1
- 239000011028 pyrite Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Manufacture And Refinement Of Metals (AREA)
Abstract
Proposed by the present invention is the secondary enrichment comprehensive recovering process of sulphur silver ferrimanganic valuable element in a kind of tailing.The present invention obtains silver preparation concentrate, iron concentrate, iron ore concentrate and manganic concerntrate using oxidation concentration, separating flotation, the weak process synthesis recycling combined except strong phase selection, i.e. pipeline transportation increases the time of contact oxidation sulfur mineral of tailing and air and improves operation concentration using concentrator；Introduce the secondary enriching and recovering silver preparation concentrate of technique and iron concentrate that the bulk flotation of sulphur silver separates again；It slags tap and carries out weak magnetic after operation again except the technique recycling iron ore concentrate of iron, the technique recycling manganic concerntrate of high intensity magnetic separation manganese；The concentrated dewatering operation of the true tailings of flotation drains into Tailings Dam, realizes the dry row of tailing；Tailings comprehensive recycling silver preparation concentrate grade breaks through 800g/t after actual measurement, and iron concentrate grade breaks through 40%, and manganic concerntrate grade is higher than 20%, iron concentrate grade is higher than 50%, has recycled mineral resources, reduces tailings discharging amount, Business Economic Benefit is improved, the storage capacity pressure of Tailings Dam is alleviated.It is suitable for the application as tailings comprehensive recovery method.
Description
Technical field
Proposed by the present invention is the recovery method of ore dressing field, is mainly used in the recycling of sulphur in tailing, silver, iron, manganese.Tool
Say to body it is the secondary enrichment comprehensive recovering process of sulphur silver ferrimanganic valuable element in a kind of tailing.
Background technique
It is in multicomponent symbiosis, mineral disseminated grain size is thin since the ore taste of the most of mineral products in China is low more.Along with state
Interior preparation equipment aging phenomenon is universal, and automatization level is low, and management level is not high, and recovery rate in ore-dressing is low, necessarily causes resource
It in the tailing of serious waste, especially old mine, is limited by prevailing condition, the useful constituent being lost in tailing is bigger by one
A bit.Currently, analyzed by investigation to tailing, containing valuable elements such as copper, lead, zinc, sulphur, silver, iron, manganese in tailing, wherein copper,
Lead, zinc are that oxide form exists mostly, substantially without recoverable value.Through experimental study, sulphur, silver, iron, manganese still can be returned partially
It receives, tailing is made to become " secondary raw material industry ", be able to produce out the product of widespread demand in the market: iron concentrate, silver preparation concentrate, iron essence
Mine and manganic concerntrate have industrial value.
Currently, common tailings comprehensive recovery technology is returned using jet stream flotation of silver concentrate, flotation recovery iron concentrate, low intensity magnetic separation
It receives iron ore concentrate and strong magnetic recycles manganic concerntrate, in order to improve comprehensive utilization of tailing rate, be badly in need of optimization tailings comprehensive recovery technology, widen
Ore dressing thinking, is put to production practices, and mineral processing production is made to have breakthrough progress.
Summary of the invention
In order to optimize tailings comprehensive recovery technology, the processing capacity for recycling valuable element from tailing is improved, ore dressing is solved
Final the problem of realizing tailing dry row, the invention proposes the secondary enrichment synthetical recoveries of sulphur silver ferrimanganic valuable element in a kind of tailing
Method.This method obtains silver preparation concentrate, sulphur essence by oxidation concentration, separating flotation, the weak process synthesis recycling combined except strong phase selection
Mine, iron ore concentrate and manganic concerntrate, i.e. pipeline transportation are increased the time of contact oxidation sulfur mineral of tailing and air and are mentioned using concentrator
High operation concentration；Introduce the secondary enriching and recovering silver preparation concentrate of technique and iron concentrate that the bulk flotation of sulphur silver separates again；It slags tap after operation
Weak magnetic is carried out again except the technique recycling iron ore concentrate of iron, the technique recycling manganic concerntrate of high intensity magnetic separation manganese；The true tailings of flotation is concentrated
The technical issues of dewatering operation drains into Tailings Dam, realizes the dry row of tailing, solves tailings comprehensive recycling.
The solution adopted by the present invention to solve the technical problem is that:
Process flow of the invention is obtained using the method for oxidation concentration, separating flotation, the weak synthetical recovery combined except strong phase selection
Obtain silver preparation concentrate, iron concentrate, iron ore concentrate and manganic concerntrate, comprising the following steps:
(1) oxidation concentration is milltailings through pipeline transportation increase tailing and air contact time, makes the sulfur mineral of floatability difference
Surface oxidation improves the floatability of sulfur mineral；The concentration of tailing is improved to 34%~38% sulphur silver flotation operation using concentrator
Concentration；
(2) separating flotation is that the tailing of oxidation concentration by gravity flow mode flows into flotation device and carries out the mixed choosing of sulphur silver and separates with sulphur silver,
The mixed choosing of sulphur silver uses vertical flotation machine, and the sulphur silver bulk concentrate selected enters the separation of sulphur silver, a rough floatation, four cleaner flotations and
It once sweeps silver and carries out detached job, secondary enrichment respectively obtains silver preparation concentrate and iron concentrate；
(3) is weak except strong choosing is that flotation tailing bottom after choosing flow that enter magnetic separator weak magnetic smart except iron recycles iron after the operation that remove the gred
Mine, while tailing underflow distinguishes roughing by strong magnetomechanical again and the recycling of selected progress high intensity magnetic separation manganese obtains manganic concerntrate；
(4) true tailings of tailings comprehensive recycling enters thickener and is concentrated by the filter that Pulp pump squeezes into dry row's workshop
And dewatering operation, it is final to realize tailing dry row.
The mixed choosing of the sulphur silver is separated with sulphur silver using BF-16 flotation device；Magnetic separator is using half adverse current type permanent magnetism
Cartridge type.
Good effect, since the present invention is using oxidation concentration, separating flotation, the weak process synthesis recycling combined except strong phase selection
Silver preparation concentrate, iron concentrate, iron ore concentrate and manganic concerntrate are obtained, i.e., pipeline transportation increases tailing and the time of contact of air aoxidizes sulfur mineral
And operation concentration is improved using concentrator；Introduce the secondary enriching and recovering silver preparation concentrate of technique and sulphur essence that the bulk flotation of sulphur silver separates again
Mine；It slags tap and carries out weak magnetic after operation again except the technique recycling iron ore concentrate of iron, the technique recycling manganic concerntrate of high intensity magnetic separation manganese；Flotation is most
The concentrated dewatering operation of finality mine drains into Tailings Dam, realizes the dry row of tailing；Tailings comprehensive recycling silver preparation concentrate grade is prominent after actual measurement
Broken 800g/t, iron concentrate grade break through 40%, and manganic concerntrate grade is higher than 20%, and iron concentrate grade is higher than 50%, has recycled mineral products money
Tailings discharging amount is reduced in source, improves Business Economic Benefit, alleviates the storage capacity pressure of Tailings Dam.It is suitable for being returned as tailings comprehensive
The application of receiving method.
Detailed description of the invention
Fig. 1 is production technological process of the present invention.
In figure, 1. plant tailings, 2. pipeline transportations, the stirring of 3. concentrators, the mixed choosing of 4. sulphur silver, the separation of 5. sulphur silver, 6. weak magnetics
Except iron, 7. high intensity magnetic separation manganese, 8. silver preparation concentrates, 9. iron concentrates, 10. iron ore concentrates, 11. manganic concerntrates, 12. true tailings.
Specific embodiment
Embodiment 1:
(1) oxidation concentration is that milltailings 1 increases tailing through pipeline transportation 2 and air contact time, scene are by 2km long
The pipeline of degree is transported for long-distance one hour, is made the sulfur mineral surface oxidation of floatability difference, is improved the floatability of sulfur mineral；Using dense
Machine 3 improves the concentration of tailing to 34% sulphur silver flotation operation concentration；
(2) separating flotation be oxidation concentration tailing by gravity flow mode flow into flotation device carry out sulphur silver it is mixed select 4 and sulphur silver separate
5, the mixed choosing of sulphur silver uses vertical flotation machine, and the sulphur silver bulk concentrate selected enters the separation of sulphur silver, a rough floatation, four cleaner flotations
Detached job is carried out with silver is once swept, secondary enrichment respectively obtains silver preparation concentrate 8 and iron concentrate 9；
(3) is weak except strong choosing is that flotation tailing bottom after choosing flow after the operation that remove the gred and enters magnetic separator weak magnetic except the recycling iron of iron 6 is smart
Mine 10, while tailing underflow distinguishes roughing by strong magnetomechanical again and the recycling of selected progress high intensity magnetic separation manganese 7 obtains manganic concerntrate 11；
(4) true tailings 12 of tailings comprehensive recycling is done into thickener by the filter that Pulp pump squeezes into dry row's workshop dense
Contracting and dewatering operation, it is final to realize tailing dry row.
Tailings comprehensive recycling silver preparation concentrate grade breaks through 800g/t after actual measurement, and iron concentrate grade breaks through 40%, and manganic concerntrate grade is high
In 20%, iron concentrate grade is higher than 50%.
Statistical data is as follows:
Embodiment 2:
(1) oxidation concentration is that milltailings 1 increases tailing through pipeline transportation 2 and air contact time, scene are by 2km long
The pipeline of degree is transported for long-distance one hour, is made the sulfur mineral surface oxidation of floatability difference, is improved the floatability of sulfur mineral；Using dense
Machine 3 improves the concentration of tailing to 38% sulphur silver flotation operation concentration；
(2) separating flotation be oxidation concentration tailing by gravity flow mode flow into flotation device carry out sulphur silver it is mixed select 4 and sulphur silver separate
5, the mixed choosing of sulphur silver uses vertical flotation machine, and the sulphur silver bulk concentrate selected enters the separation of sulphur silver, a rough floatation, four cleaner flotations
Detached job is carried out with silver is once swept, secondary enrichment respectively obtains silver preparation concentrate 8 and iron concentrate 9；
(3) is weak except strong choosing is that flotation tailing bottom after choosing flow after the operation that remove the gred and enters magnetic separator weak magnetic except the recycling iron of iron 6 is smart
Mine 10, while tailing underflow distinguishes roughing by strong magnetomechanical again and the recycling of selected progress high intensity magnetic separation manganese 7 obtains manganic concerntrate 11；
(4) true tailings 12 of tailings comprehensive recycling is done into thickener by the filter that Pulp pump squeezes into dry row's workshop dense
Contracting and dewatering operation, it is final to realize tailing dry row.
Tailings comprehensive recycling silver preparation concentrate grade breaks through 800g/t after actual measurement, and iron concentrate grade breaks through 40%, and manganic concerntrate grade is high
In 20%, iron concentrate grade is higher than 50%.
Statistical data is as follows:
The working principle of the invention:
1, oxidation concentration: pipeline transportation tailing increases the time of contact of tailing and air, there is the sulfur mineral surface of floatability difference
The floatability of slight oxidation, sulphur can significantly improve, and just can be carried out effective recycling；Concentrator improves tailings concentration, guarantees sulphur
Silver-colored flotation has a reasonable operation concentration.
2, the secondary enrichment that separating flotation, that is, sulphur silver bulk flotation separates again, since sulphur flotation is in the operation of process flow tail portion
Concentration is low, and the sinking speed of concentration 17~19%, sulfur granules is fast, few with the touch opportunity of rising bubble, though causing small part to have can
The sulphur of buoyancy enters tailing.On the other hand, the floatability of part sulphur is very poor, not can be carried out effective recycling in ore dressing process, and
Into tailing.For a long time, sulfur-bearing 5.5% or so in the tailing of Tailings Dam are discharged into, wherein pyrite effective sulfur content is on 3% left side
The right side, silver content is in 30g/ in tailingTLeft and right, part silver and the effective sulphur symbiosis in pyrite part, if effective sulphur can be carried out
Recycling, silver of the preservation in effective sulphur also just recycle simultaneously.
3, weak except strong choosing is weak magnetic except the technique recycling iron ore concentrate of iron, the technique of high intensity magnetic separation manganese recycle manganic concerntrate.
The features of the present invention:
Tailings comprehensive recycling silver preparation concentrate grade breaks through 800g/t after actual measurement, and iron concentrate grade breaks through 40%, and manganic concerntrate grade is higher than
20%, iron concentrate grade is higher than 50%, has not only effectively recycled mineral resources, but also reduce tailings discharging amount, to raising enterprise
Economic benefit, alleviate Tailings Dam storage capacity pressure play the role of it is good.
Claims (2)
1. the secondary enrichment comprehensive recovering process of sulphur silver ferrimanganic valuable element in a kind of tailing, it is characterized in that: using oxidation concentration, dividing
From flotation, method acquisition silver preparation concentrate, iron concentrate, iron ore concentrate and the manganic concerntrate of the weak synthetical recovery combined except strong phase selection, including with
Lower step:
(1) oxidation concentration is milltailings (1) through pipeline transportation (2) increase tailing and air contact time, makes floatability difference
Sulfur mineral surface oxidation improves the floatability of sulfur mineral；The concentration of tailing is improved to 34%~38% sulphur silver using concentrator (3)
Flotation operation concentration；
(2) separating flotation is that the tailing of oxidation concentration flows into the mixed choosing (4) of flotation device progress sulphur silver and sulphur silver point by gravity flow mode
Vertical flotation machine is used from the mixed choosing of (5) sulphur silver, the sulphur silver bulk concentrate selected enters the separation of sulphur silver, a rough floatation, four essences
Flotation and primary silver of sweeping carry out detached job, and secondary enrichment respectively obtains silver preparation concentrate (8) and iron concentrate (9)；
(3) weak except strong choosing is that flotation tailing bottom after choosing flow after the operation that remove the gred and enters magnetic separator weak magnetic and remove iron (6) recycling iron
Concentrate (10), while tailing underflow distinguishes roughing by strong magnetomechanical again and the recycling of selected progress high intensity magnetic separation manganese (7) obtains manganic concerntrate
(11)；
(4) true tailings (12) of tailings comprehensive recycling is done into thickener by the filter that Pulp pump squeezes into dry row's workshop dense
Contracting and dewatering operation, it is final to realize tailing dry row.
2. the secondary enrichment comprehensive recovering process of sulphur silver ferrimanganic valuable element in a kind of tailing according to claim 1, special
Sign is: the mixed choosing of the sulphur silver is separated with sulphur silver using BF-16 flotation device；Magnetic separator is using half adverse current type pipe magnetic separator
Formula.
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Cited By (2)
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| CN111286603A (en) * | 2020-03-25 | 2020-06-16 | 内蒙古金山矿业有限公司 | Process for recovering silver and co-producing manganese sulfate from manganese-containing silver ore |
| CN114985100A (en) * | 2022-06-02 | 2022-09-02 | 紫金矿业集团股份有限公司 | High-efficiency energy-saving beneficiation method for low-grade gold-bearing copper sulfide ore |
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| CN114985100A (en) * | 2022-06-02 | 2022-09-02 | 紫金矿业集团股份有限公司 | High-efficiency energy-saving beneficiation method for low-grade gold-bearing copper sulfide ore |
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