CN109909056A - Flotation process for complex refractory sulphide ore associated with silicon/aluminum - Google Patents
Flotation process for complex refractory sulphide ore associated with silicon/aluminum Download PDFInfo
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- CN109909056A CN109909056A CN201910129839.8A CN201910129839A CN109909056A CN 109909056 A CN109909056 A CN 109909056A CN 201910129839 A CN201910129839 A CN 201910129839A CN 109909056 A CN109909056 A CN 109909056A
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Abstract
The invention discloses a flotation process of complex refractory sulfide ore associated with silicon/aluminum, sedimentary pyrite, and silicon/aluminum resources associated with bauxite, pyrophyllite, chlorite and the like capable of being comprehensively utilized, which comprises the following steps: (1) grinding raw ore (2), carrying out pyrite flotation (3), concentrating and desliming (4), carrying out pyrophyllite flotation (5) and carrying out chlorite flotation. By adopting the flotation process, high-quality pyrite, bauxite, pyrophyllite and chlorite can be obtained from the complex refractory sulfide ores associated with silicon/aluminum, so that the tailings-free production and the maximum comprehensive utilization of the resources are achieved, and the flotation process is an excellent flotation process and has good popularization and application values.
Description
Technical field
The invention belongs to complicated refractory sulfide technical field of beneficiation, and in particular to a kind of appositional pattern of association silicon/aluminium
The floatation process of pyrite.
Background technique
The complicated refractory sulfide of association silicon/aluminium, as the term suggests ore natural endowment is poor, grade is low, and mineral species are more, complicated
Hardly possible choosing, it is big to obtain single qualified concentrate products difficulty.The difficult sulphur of complexity of this kind of association silicon/bauxite resource is utilized to greatest extent
Change mine, is the research direction and wish and research hotspot of ore dressing worker.The appositional pattern that China is verified Guangxi province in recent years
Pyrite stock number has reached 2.5 hundred million tons, and ore is averaged sulfur grade 16% or so, using mineral is mainly Huang Tie in ore
Mine, and the silicon/aluminium mineral such as be associated with pyrophyllite, diaspore, chlorite, kaolinite is for comprehensive utilization.
Pyrophyllite stable chemical performance is not reacted with strong acid and strong base generally, only at high temperature could be by sulfuric acid decomposition, together
When pyrophyllite have preferable heat resistance and insulating properties, be it is a kind of seal pressure transmission dielectric material；A kind of special 2:1 of chlorite
The aqueous layer aluminosilicate mineral of type are one of main clay mineral, have mineralogy and PETROLOGICAL SIGNIFICANCE.
Studies have shown that the main preservation of S element of the complicated refractory sulfide of this kind of association silicon/bauxite resource is in pyrite
In, pyrite primary particle sizes statistics is less than 0.074mm and accounts for 60%, accounts for about 24% less than 0.01mm, and granularity is very thin, and wholegrain grade is returned
It receives difficult；Industrial aluminium mineral is mainly diaspore in ore, next has gibbsite, bayerite, and mineral quantity is total
About 19%, effective aluminium mineral content is lower, granularity is subtle, and with the aluminum silicon minerals such as pyrophyllite, chlorite, kaolinite, montmorillonite
Mix mutually embedding, recovery difficult is big, and (and for alumina silica ratio 1.5 or lower ore concentration of bauxite, at home and abroad there are no correlations
The report of research, difficult)；For the mineral quantity of pyrophyllite 30% or so, pyrophyllite is in micro- flakey more, is often gathered into
Laminated, sector, pencil aggregate.Pyrophyllite granularity (major diameter) is mostly between 0.01mm~0.1mm, but its easy argillization, deteriorates floating
Ring selection border, FLOTATION SEPARATION are difficult；In addition, the mineral such as chlorite, sepiolite, halloysite, sericite are in cryptocrystalline shape more, it is few
Amount is in imperceptible micro- flakey, and granularity is approximately less than 0.005mm, under conventional petrographic microscope, their mutual nothings
Method is distinguished, and also cannot be distinguished with the kaolinite of imperceptible micro- flakey or cryptocrystalline shape, and recovery difficult has some idea of.With
On cause each mineral classification recovery difficult in ore very big, whole resource utilization level is low.
It would therefore be highly desirable to develop the difficult sulfide flotation new process of complexity of advanced effective association silicon/bauxite resource, make mine
The valuable elements such as sulphur/silicon/aluminium in stone are fully and rationally used, this utilizes tool to the effective exploitation and anuryization of mineral resources
There is important realistic meaning.
Summary of the invention
For above-mentioned development and utilization problem, the present invention is intended to provide a kind of complicated refractory sulfide of association silicon/aluminium is floating
Select technique.Ore comprehensive utilization rate is high, and sorting is easy, and tailings discharging is few.To realize the technical purpose, the present invention is using as follows
Technical solution:
A kind of difficult sulfide flotation technique of complexity of association silicon/bauxite resource, includes the following steps:
1) ore grinding: raw ore ore grinding, then opposite grinding mineral material is sieved, and is obtained into floating mineral, enter in floating mineral granularity be-
74 μm account for the 90%-100% into floating ore weight；
2) flotation of pyrite: enter flotation pyrite in floating mineral from step 1) gained, obtain sulphur ore and desulfurization tail
Mine；
3) desliming: the desulfurization tailing obtained to step 2) carries out sedimentation desliming, obtains desliming mineral and sludge；
4) pyrophyllite flotation: the flotation pyrophyllite from desliming mineral obtained by step 3) obtains pyrophyllite concentrate and disleave wax
Stone tailing, the flotation of this step includes 1. roughing, 2. selected and 3. scan；Roughing, it is the roughing of this step, selected and during scanning,
Collecting agent is added, collecting agent is any one of ether amines and coco amine or two kinds of combination；
5) chlorite flotation: the flotation chlorite from disleave alabaster tailing obtained by step 4) obtains chlorite concentrate and aluminium
Tu Kuang, the flotation of this step includes 1. roughing, 2. selected and 3. scan；Roughing, it is the roughing of this step, selected and during scanning,
Collecting agent is added, collecting agent is any one of fatty amine, octadecylamine, lauryl amine and mixed amine or several combination.
For technical solution of the present invention, the flotation of pyrite of step 2) is referred to the prior art, and use is more normal
The process flow for being suitable for pyrite sorting of rule and medicament, for example, dispersing agent can be the polymeric phosphates such as calgon,
Inhibitor can be guar gum/xanthan gum/sodium carboxymethylcellulose, and collecting agent can be butyl xanthate/amyl group xanthate, foaming agent
It can be methyl isobutyl carbinol/2# oil, suitable for the collecting agent of pyrite and other medicaments, sorting mode can be flotation,
Gravity treatment or buoyant weight, which are combined, to be sorted.But mode is sorted to the more favorable pyrite of the present invention are as follows: flotation, because in ore
Pyrite granularity is fine, and a large amount of -10 μm of microfine pyrite are generated after ore grinding, ideal effect is not achieved using gravity treatment.To
Step (1) it is resulting enter floating mineral in be added sodium hexametaphosphate dispersant/sodium pyrophosphate 650-850g/t raw ore, collecting agent butyl
Xanthate/amyl group xanthate 150-250g/t raw ore, inhibitor xanthan gum/guar gum 700-900g/t raw ore and foaming agent methyl tert-butyl
Base methanol/2# oil 40-80g/t raw ore carries out the roughing in flotation of pyrite process, obtains pyrite rough concentrate and pyrite is thick
Select tailing；Then pyrite rough concentrate progress pyrite is selected, selected middle addition butyl xanthate/amyl group xanthate 20-40g/t is former
Mine and xanthan gum/guar gum 150-300g/t raw ore, obtain the selected chats of pyrite and sulphur ore；In addition, by pyrite
Rougher tailings carries out pyrite and scans, and pyrite scans addition butyl xanthate/amyl group xanthate 40-80g/t raw ore and methyl tert-butyl
Base methanol/2# oil 15-30g/t raw ore, obtains scanning chats and desulfurization tailing.
Preferably, when step 4) roughing, in Xiang Suoshu desliming mineral be added roughing medicament, the medicament include dispersing agent,
Collecting agent, regulator and foaming agent, roughing obtain pyrophyllite rough concentrate and pyrophyllite rougher tailings；
Preferably, selected medicament is added when step 4) is selected into pyrophyllite rough concentrate, the selected medicament includes collecting
Agent, regulator and foaming agent, it is selected to obtain the selected chats of pyrophyllite and pyrophyllite concentrate；
Preferably, it is added when step 4) is scanned into pyrophyllite rougher tailings and scans medicament, the medicament of scanning includes catching
Agent and foaming agent are received, scans to obtain pyrophyllite and scans chats and disleave alabaster tailing.
Preferably, roughing medicament, roughing medicament packet described in this step is added when step 5) roughing into disleave alabaster tailing
Collecting agent and regulator are included, the roughing of this step obtains chlorite rough concentrate and chlorite rougher tailings；
Preferably, selected medicament is added when step 5) is selected into chlorite rough concentrate, the selected medicament of this step includes catching
It receives agent and regulator, flotation obtains the selected chats of chlorite and chlorite concentrate；
Preferably, it is added collecting agent when step 5) is scanned into chlorite rougher tailings, flotation obtains during chlorite scans
Mine and bauxite.
Preferably, in step 4), regulator is sulfuric acid when roughing, dispersing agent is calgon and foaming agent is that methyl is different
Butyl carbinol；Preferably, the regulator dosage is 750-900g/t raw ore, and dispersant dosage is 300-500g/t raw ore, is caught
Receipts agent dosage is 15-30g/t raw ore, and frother dosages are 10-20g/t raw ore；
Preferably, in step 4), regulator is sulfuric acid when selected, foaming agent is methyl isobutyl carbinol；Regulator dosage
For 350-400g/t raw ore, collector dosage 10-20g/t raw ore, frother dosages are 5-10g/t raw ore；
Preferably, in step 4), foaming agent is methyl isobutyl carbinol when scanning；When scanning, collector dosage 10-20g/
T raw ore, frother dosages are 5-10g/t raw ore.
Preferably, step 4) it is described it is selected be at least three times；Preferably, the selected chats of pyrophyllite obtained by step 4) and leaf wax
Stone scans chats and is sequentially back to upper level operation respectively.
Preferably, in step 5), roughing and selected regulator used are sulfuric acid；
Preferably, regulator dosage is 450-600g/t raw ore, collector dosage 10-20g/t when roughing in step 5)
Raw ore；Regulator dosage is 80-120g/t raw ore when selected in step 5), and collector dosage is 8-18g/t raw ore；Step 5)
In, collector dosage is 10-15g/t raw ore when scanning.
Preferably, step 5) is described selected at least twice.
Preferably, the selected chats of chlorite obtained by step 5) and chlorite scan chats and are sequentially back to upper level work respectively
Industry.
The industrial aluminium silicate minerals such as aluminium mineral and pyrophyllite, kaolinite mix mutually embedding in sample ore, and embedding cloth relationship is complicated, choosing
Other difficulty is very big；Gangue mineral based on pyrophyllite, kaolinite has certain native floatability, increases floating because of carbon dye
The difficulty of sulphur also will affect the whiteness of the dressing products such as pyrophyllite.Pyrite granularity is fine in ore, generates after ore grinding a large amount of
- 10 μm of microfine pyrite.Microfine pyrite is fast to adsorption of collector poor selectivity, surface solution rate, connects with foam
The problems such as touching probability and low sticking probability, causes flotation tailing S grade to be difficult to reduce.Ore pulp cement content height, mine after ore ore grinding
Mud floc sedimentation is serious, and sludge forms sludge covering in pyrite particle surface adhesion, seriously affects the floating of pyrite, especially micro-
The floating of fine pyrites.Contain the preferable pyrophyllite of a large amount of floatabilities, carbon containing gangue mineral etc., common water glass in ore
The inhibitor such as glass, carboxymethyl cellulose are difficult to prevent its floating, be easy to cause iron concentrate grade low, and these inhibitor are to Huang
Iron ore also has certain inhibiting effect, will also result in tailing that S grade is higher, influences tailing next step ore-dressing practice.To this
Ore has carried out a large amount of exploratory experiment, sum up the ore sort key be " the strong dispersion of ore pulp, gangue mineral it is strong
Inhibit, the strong collecting of pyrite ".By dispersing ore pulp by force, pyrite particle, the especially mine of microfine pyrite surface are removed
Mud the cover；, selectivity preferable inhibitor relatively strong to ore of easy floating gangue inhibiting effect is screened, guarantees the grade of iron concentrate；It adopts
With the stronger collecting agent of collecting ability, reinforce the collecting of the pyrite of microfine pyrite and surface oxidation, improves iron concentrate S and return
Yield reduces floating sulphur tailing S grade.
Currently, at home and abroad there are no the reports of correlative study for alumina silica ratio 1.5 or lower ore concentration of bauxite
Road is difficult.
SiO in desulfurization tailing2Content is up to 32%, and alumina silica ratio (A/S) is only 1.5 or so, simultaneously from wherein recycling aluminium mineral
It is very big greater than the difficulty of 6 aluminium concentrate to obtain alumina silica ratio (A/S)；Pyrophyllite content is higher in the material, it is possible to obtain leaf wax
Stone product, increases the utility value of the tailing, but since pyrophyllite has preferable native floatability, this for bauxite material just
Flotation causes very big difficulty.In view of the concrete condition in the mine, the comprehensive utilization of floating sulphur tailing focuses on effective aluminium ore
The separation and recovery of object, pyrophyllite.
Beneficial effects of the present invention:
Sulphur ore, bauxite, pyrophyllite concentrate, green mud can be obtained after floatation process of the present invention processing in ore
Stone concentrate and sludge, it can be achieved that this kind of mineral resources anury comprehensive reutilization, namely realize without tailings discharging, do not need
The facilities such as Tailings Dam are built, save the cost, reduce production influences to environment bring.
Present invention process flow technologies are advanced, process, index is excellent, environmental-friendly, economic and social benefit is obvious,
The research achievement can provide foundation for Economic Evaluation of Ore Deposits and the feasibility study of mine development, mine development design.
Detailed description of the invention
Fig. 1 is principle flow chart of the invention.
Specific embodiment
Technical effect in order to further illustrate the present invention is specifically described the present invention below by embodiment.
Embodiment 1
1, ore characteristic
The complicated refractory sulfide ore of somewhere association silicon/bauxite resource, sulphur, iron, aluminium, four kinds main group of silicon in ore
Chemical content is divided to be as high as 84%, S grade 15.1%, Al2O3Content 32.1%, SiO2Content 25.4%.Main mine in ore
Object has: pyrite, diaspore (and a small amount of gibbsite), pyrophyllite, chlorite, kaolinite are (containing a small amount of more water kaolinites
Stone), anatase etc.；Few/trace quantity mineral is shown in montmorillonite, sepiolite, mica, gypsum, carbonaceous (graphite), limonite, siderotil, stone
English etc..Mineral species are more, disseminated grain size is thin and complicated, and whole resource utilization difficulty is very big.
2, ore-dressing technique
(1) by refractory sulfide raw ore carry out ore grinding, then to ore milling product carry out wet screening, separate -74 μm and+
74 μm of grade parts, the grinding operation that+74 μm of grades therein part returns to upper level are regrinded；What is finally obtained enters floating sample
Product granularity is that -74 μm of grain size contents account for 100% into floating sample quality；
(2) to step (1) it is resulting enter floating sample in sequentially add sodium hexametaphosphate dispersant 700g/t raw ore, collecting agent
Butyl xanthate 200g/t raw ore, inhibitor xanthan gum 800g/t raw ore, foaming agent methyl isobutyl carbinol 50g/t raw ore carry out
Roughing in flotation of pyrite process obtains pyrite rough concentrate and pyrite rougher tailings；Then by pyrite rough concentrate into
At least pyrite is selected three times for row, and selected every time to obtain the selected chats of respective pyrite, last time is selected in addition to obtaining Huang
Sulphur ore is also obtained outside iron ore choiceness chats, the selected chats of respective pyrite is sequentially back to upper level respectively and is made
Industry；Scanned in addition, pyrite rougher tailings is carried out pyrite twice, scan to obtain every time it is respective scan chats, second
It scans and also obtains desulfurization tailing other than obtaining scanning chats, respective pyrite is scanned into chats and is sequentially back to upper one respectively
Grade operation.
(3) the desulfurization tailing for obtaining step (2) use lamella thickener, carry out sedimentation desliming, respectively obtain granularity be-
28 μm of sludge and desliming mineral；
(4) regulator sulfuric acid 800g/t raw ore, the inclined phosphorus of dispersing agent six are sequentially added into the resulting desliming mineral of step (3)
It is floating to carry out pyrophyllite for sour sodium 400g/t raw ore, collecting agent ether amines 20g/t raw ore, foaming agent methyl isobutyl carbinol 10g/t raw ore
The roughing in process is selected, pyrophyllite rough concentrate and pyrophyllite rougher tailings are obtained；Then pyrophyllite rough concentrate is subjected to leaf three times
Alabaster is selected, and selected every time to obtain the selected chats of respective pyrophyllite, last time is selected in addition to obtaining the selected chats of pyrophyllite
Pyrophyllite concentrate is also obtained outside, the selected chats of respective pyrophyllite is sequentially back to upper level operation respectively；In addition, by leaf wax
Stone rougher tailings carries out pyrophyllite and scans once, disleave alabaster tailing is also obtained other than obtaining pyrophyllite and scanning chats, by leaf
Alabaster scans chats sequence and is back to upper level operation.
(5) regulator sulfuric acid 500g/t raw ore, collecting are sequentially added into the resulting disleave alabaster tailing ore pulp of step (3)
Agent fatty amine 15g/t raw ore carries out the roughing in chlorite flotation circuit, obtains chlorite rough concentrate and chlorite roughing tail
Mine；Then chlorite rough concentrate two epichlorites of progress are selected, it is selected every time to obtain the selected chats of respective chlorite, finally
Primary cleaning also obtains chlorite concentrate other than obtaining the selected chats of chlorite, and the selected chats of respective chlorite is suitable respectively
Sequence is back to upper level operation；In addition, chlorite rougher tailings progress chlorite is scanned once, scanned in addition to obtaining chlorite
Chlorite is scanned chats sequence and is back to upper level operation by the bauxite that high-quality is also obtained outside chats.
In step (2), based on ore quality ratio, the selected addition butyl xanthate 30g/t raw ore of each pyrite, xanthan gum
200g/t raw ore；Each pyrite, which is scanned, is added butyl xanthate 50g/t raw ore, methyl isobutyl carbinol 20g/t raw ore.
In step (4), based on ore quality ratio, the selected addition sulfuric acid 375g/t raw ore of each pyrophyllite, ether amines 22g/t
Raw ore, foaming agent methyl isobutyl carbinol 15g/t raw ore；Pyrophyllite, which is scanned, is added ether amines 15g/t raw ore, foaming agent methyl tert-butyl
Base methanol 7g/t raw ore.
In step (5), based on ore quality ratio, the selected addition sulfuric acid 100g/t raw ore of every epichlorite, fatty amine
15g/t raw ore；Chlorite, which is scanned, is added fatty amine 12g/t raw ore.
3, FLOTATION SEPARATION test index
FLOTATION SEPARATION index is shown in Table 1.
Table 1
By the test result of table 1 it is found that the complicated refractory sulfide of association silicon/bauxite resource uses flotation of the invention
Technique has obtained the pyrite and bauxite and pyrophyllite, chlorite and sludge of high-quality, and wherein the sulfur grade of pyrite reaches
To 48% or more, the alumina silica ratio of bauxite reaches 6.2, achievees the purpose that mineral resources anury utilizes.
Embodiment 2
1, ore characteristic
Certain complicated refractory sulfide of association silicon/bauxite resource, ore is mainly by pyrite, pyrophyllite, diaspore
With the mineral compositions such as a small amount of kaolinite, montmorillonite, chlorite, anatase；S grade is 16.4% in ore, and sulphur is with pyrite mine
Object form exists, and the process mineralogy granularity of pyrite is between 0.001mm~1.32mm, generally between 0.01mm~0.15mm；
Industrial aluminium mineral is mainly diaspore in ore, mutually mixed in together with the mineral such as pyrophyllite, kaolinite, montmorillonite,
And granularity is fine, sorting difficulty is big.
2, ore-dressing technique
(1) by refractory sulfide raw ore carry out ore grinding, then to ore milling product carry out wet screening, separate -74 μm and+
74 μm of grade parts, the grinding operation that+74 μm of grades therein part returns to upper level are regrinded；What is finally obtained enters floating sample
Product granularity is that -74 μm of grain size contents account for 100% into floating sample quality；
(2) to step (1) it is resulting enter floating sample in sequentially add sodium hexametaphosphate dispersant 700g/t raw ore, collecting agent
Butyl xanthate 200g/t raw ore, inhibitor xanthan gum 800g/t raw ore, foaming agent methyl isobutyl carbinol 50g/t raw ore carry out
Roughing in flotation of pyrite process obtains pyrite rough concentrate and pyrite rougher tailings；Then by pyrite rough concentrate into
At least pyrite is selected three times for row, and selected every time to obtain the selected chats of respective pyrite, last time is selected in addition to obtaining Huang
The sulphur ore that high-quality is also obtained outside iron ore choiceness chats, the selected chats of respective pyrite is sequentially back to respectively
Level-one operation；Scanned in addition, pyrite rougher tailings is carried out pyrite twice, scan to obtain every time it is respective scan chats,
It scans for the second time and also obtains desulfurization tailing other than obtaining scanning chats, respective pyrite is scanned chats, and sequence returns respectively
To upper level operation.
(3) the desulfurization tailing for obtaining step (2) use lamella thickener, carry out sedimentation desliming, respectively obtain granularity be-
28 μm of sludge and desliming mineral；
(4) regulator sulfuric acid 800g/t raw ore, the inclined phosphorus of dispersing agent six are sequentially added into the resulting desliming mineral of step (3)
Sour sodium 400g/t raw ore, collecting agent coco amine 20g/t raw ore, foaming agent methyl isobutyl carbinol 10g/t raw ore carry out pyrophyllite
Roughing in flotation circuit obtains pyrophyllite rough concentrate and pyrophyllite rougher tailings；Then pyrophyllite rough concentrate is carried out three times
Pyrophyllite is selected, selected every time to obtain the selected chats of respective pyrophyllite, last time it is selected in addition to obtain pyrophyllite it is selected in
Pyrophyllite concentrate is also obtained outside mine, the selected chats of respective pyrophyllite is sequentially back to upper level operation respectively；In addition, by leaf
Alabaster rougher tailings carries out pyrophyllite and scans once, and disleave alabaster tailing is also obtained other than obtaining pyrophyllite and scanning chats, will
Pyrophyllite scans chats sequence and is back to upper level operation.
(5) regulator sulfuric acid 500g/t raw ore, collecting are sequentially added into the resulting disleave alabaster tailing ore pulp of step (3)
Agent octadecylamine 15g/t raw ore carries out the roughing in chlorite flotation circuit, obtains chlorite rough concentrate and chlorite roughing tail
Mine；Then chlorite rough concentrate two epichlorites of progress are selected, it is selected every time to obtain the selected chats of respective chlorite, finally
Primary cleaning also obtains chlorite concentrate other than obtaining the selected chats of chlorite, and the selected chats of respective chlorite is suitable respectively
Sequence is back to upper level operation；In addition, chlorite rougher tailings progress chlorite is scanned once, scanned in addition to obtaining chlorite
Chlorite is scanned chats sequence and is back to upper level operation by the bauxite that high-quality is also obtained outside chats.
In step (2), based on ore quality ratio, the selected addition butyl xanthate 30g/t raw ore of each pyrite, xanthan gum
200g/t raw ore；Each pyrite, which is scanned, is added butyl xanthate 50g/t raw ore, methyl isobutyl carbinol 20g/t raw ore.
In step (4), based on ore quality ratio, the selected addition sulfuric acid 375g/t raw ore of each pyrophyllite, ether amines 15g/t
Raw ore, foaming agent methyl isobutyl carbinol 7g/t raw ore；Pyrophyllite, which is scanned, is added ether amines 15g/t raw ore, foaming agent methyl tert-butyl
Base methanol 7g/t raw ore.
In step (5), based on ore quality ratio, the selected addition sulfuric acid 100g/t raw ore of every epichlorite, fatty amine
10g/t raw ore；Chlorite, which is scanned, is added fatty amine 12g/t raw ore.
3, FLOTATION SEPARATION test index
FLOTATION SEPARATION index is shown in Table 2.
Table 2
By the test result of table 2 it is found that the complicated refractory sulfide of association silicon/bauxite resource uses flotation of the invention
Technique has been similarly obtained the pyrite and bauxite and pyrophyllite, chlorite and sludge of high-quality, wherein the sulphur product of pyrite
Position reaches 51% or more, and the alumina silica ratio of bauxite reaches 7.6, and index is excellent, has reached the mesh of mineral resources high-efficiency comprehensive utilization
's.
Embodiment 3
1, ore characteristic
The complicated refractory sulfide ore of somewhere association silicon/bauxite resource, sulphur, iron, aluminium, four kinds main group of silicon in ore
Chemical content is divided to be as high as 84%, S grade 15.1%, Al2O3Content 32.1%, SiO2Content 25.4%.Main mine in ore
Object has: pyrite, diaspore (and a small amount of gibbsite), pyrophyllite, chlorite, kaolinite are (containing a small amount of more water kaolinites
Stone), anatase etc.；Few/trace quantity mineral is shown in montmorillonite, sepiolite, mica, gypsum, carbonaceous (graphite), limonite, siderotil, stone
English etc..Mineral species are more, disseminated grain size is thin and complicated, and whole resource utilization difficulty is very big.
2, ore-dressing technique
(1) by refractory sulfide raw ore carry out ore grinding, then to ore milling product carry out wet screening, separate -74 μm and+
74 μm of grade parts, the grinding operation that+74 μm of grades therein part returns to upper level are regrinded；What is finally obtained enters floating sample
Product granularity is that -74 μm of grain size contents account for 100% into floating sample quality；
(2) to step (1) it is resulting enter floating sample in sequentially add sodium hexametaphosphate dispersant 650g/t raw ore, collecting agent
Butyl xanthate 150g/t raw ore, inhibitor xanthan gum 700g/t raw ore, foaming agent methyl isobutyl carbinol 40g/t raw ore carry out
Roughing in flotation of pyrite process obtains pyrite rough concentrate and pyrite rougher tailings；Then by pyrite rough concentrate into
At least pyrite is selected three times for row, and selected every time to obtain the selected chats of respective pyrite, last time is selected in addition to obtaining Huang
Sulphur ore is also obtained outside iron ore choiceness chats, the selected chats of respective pyrite is sequentially back to upper level respectively and is made
Industry；Scanned in addition, pyrite rougher tailings is carried out pyrite twice, scan to obtain every time it is respective scan chats, second
It scans and also obtains desulfurization tailing other than obtaining scanning chats, respective pyrite is scanned into chats and is sequentially back to upper one respectively
Grade operation.
(3) the desulfurization tailing for obtaining step (2) use lamella thickener, carry out sedimentation desliming, respectively obtain granularity be-
28 μm of sludge and desliming mineral；
(4) regulator sulfuric acid 750g/t raw ore, the inclined phosphorus of dispersing agent six are sequentially added into the resulting desliming mineral of step (3)
Sour sodium 300g/t raw ore, collecting agent ether amines and coco amine 15g/t raw ore, foaming agent methyl isobutyl carbinol 10g/t raw ore carry out
Roughing in pyrophyllite flotation circuit obtains pyrophyllite rough concentrate and pyrophyllite rougher tailings；Then by pyrophyllite rough concentrate into
Pyrophyllite is selected three times for row, and selected every time to obtain the selected chats of respective pyrophyllite, last time is selected in addition to obtaining pyrophyllite
Pyrophyllite concentrate is also obtained outside selected chats, the selected chats of respective pyrophyllite is sequentially back to upper level operation respectively；This
Outside, pyrophyllite rougher tailings progress pyrophyllite is scanned once, disleave alabaster is also obtained other than obtaining pyrophyllite and scanning chats
Pyrophyllite is scanned chats sequence and is back to upper level operation by tailing.
(5) regulator sulfuric acid 450g/t raw ore, collecting are sequentially added into the resulting disleave alabaster tailing ore pulp of step (3)
Agent lauryl amine 10g/t raw ore carries out the roughing in chlorite flotation circuit, obtains chlorite rough concentrate and chlorite roughing tail
Mine；Then chlorite rough concentrate two epichlorites of progress are selected, it is selected every time to obtain the selected chats of respective chlorite, finally
Primary cleaning also obtains chlorite concentrate other than obtaining the selected chats of chlorite, and the selected chats of respective chlorite is suitable respectively
Sequence is back to upper level operation；In addition, chlorite rougher tailings progress chlorite is scanned once, scanned in addition to obtaining chlorite
Chlorite is scanned chats sequence and is back to upper level operation by the bauxite that high-quality is also obtained outside chats.
In step (2), based on ore quality ratio, the selected addition butyl xanthate 20g/t raw ore of each pyrite, xanthan gum
150g/t raw ore；Each pyrite, which is scanned, is added butyl xanthate 40g/t raw ore, methyl isobutyl carbinol 15g/t raw ore.
In step (4), based on ore quality ratio, the selected addition sulfuric acid 350g/t raw ore of each pyrophyllite, ether amines 10g/t
Raw ore, foaming agent methyl isobutyl carbinol 5g/t raw ore；Pyrophyllite, which is scanned, is added ether amines 10g/t raw ore, foaming agent methyl tert-butyl
Base methanol 5g/t raw ore.
In step (5), based on ore quality ratio, the selected addition sulfuric acid 80g/t raw ore of every epichlorite, fatty amine 8g/t
Raw ore；Chlorite, which is scanned, is added fatty amine 10g/t raw ore.
3, FLOTATION SEPARATION test index
FLOTATION SEPARATION index is shown in Table 3.
Table 3
By the test result of table 3 it is found that the complicated refractory sulfide of association silicon/bauxite resource uses flotation of the invention
Technique has obtained the pyrite and bauxite and pyrophyllite, chlorite and sludge of high-quality, and wherein the sulfur grade of pyrite reaches
To 49% or more, the alumina silica ratio of bauxite reaches 6.1, achievees the purpose that mineral resources anury utilizes.
Embodiment 4
1, ore characteristic
Certain complicated refractory sulfide of association silicon/bauxite resource, ore is mainly by pyrite, pyrophyllite, diaspore
With the mineral compositions such as a small amount of kaolinite, montmorillonite, chlorite, anatase；S grade is 16.4% in ore, and sulphur is with pyrite mine
Object form exists, and the process mineralogy granularity of pyrite is between 0.001mm~1.32mm, generally between 0.01mm~0.15mm；
Industrial aluminium mineral is mainly diaspore in ore, mutually mixed in together with the mineral such as pyrophyllite, kaolinite, montmorillonite,
And granularity is fine, sorting difficulty is big.
2, ore-dressing technique
(1) by refractory sulfide raw ore carry out ore grinding, then to ore milling product carry out wet screening, separate -74 μm and+
74 μm of grade parts, the grinding operation that+74 μm of grades therein part returns to upper level are regrinded；What is finally obtained enters floating sample
Product granularity is that -74 μm of grain size contents account for 100% into floating sample quality；
(2) to step (1) it is resulting enter floating sample in sequentially add sodium hexametaphosphate dispersant 850g/t raw ore, collecting agent
Butyl xanthate 250g/t raw ore, inhibitor xanthan gum 900g/t raw ore, foaming agent methyl isobutyl carbinol 80g/t raw ore carry out
Roughing in flotation of pyrite process obtains pyrite rough concentrate and pyrite rougher tailings；Then by pyrite rough concentrate into
At least pyrite is selected three times for row, and selected every time to obtain the selected chats of respective pyrite, last time is selected in addition to obtaining Huang
The sulphur ore that high-quality is also obtained outside iron ore choiceness chats, the selected chats of respective pyrite is sequentially back to respectively
Level-one operation；Scanned in addition, pyrite rougher tailings is carried out pyrite twice, scan to obtain every time it is respective scan chats,
It scans for the second time and also obtains desulfurization tailing other than obtaining scanning chats, respective pyrite is scanned chats, and sequence returns respectively
To upper level operation.
(3) the desulfurization tailing for obtaining step (2) use lamella thickener, carry out sedimentation desliming, respectively obtain granularity be-
28 μm of sludge and desliming mineral；
(4) regulator sulfuric acid 900g/t raw ore, the inclined phosphorus of dispersing agent six are sequentially added into the resulting desliming mineral of step (3)
Sour sodium 500g/t raw ore, collecting agent ether amines and coco amine 30g/t raw ore, foaming agent methyl isobutyl carbinol 20g/t raw ore carry out
Roughing in pyrophyllite flotation circuit obtains pyrophyllite rough concentrate and pyrophyllite rougher tailings；Then by pyrophyllite rough concentrate into
Pyrophyllite is selected three times for row, and selected every time to obtain the selected chats of respective pyrophyllite, last time is selected in addition to obtaining pyrophyllite
Pyrophyllite concentrate is also obtained outside selected chats, the selected chats of respective pyrophyllite is sequentially back to upper level operation respectively；This
Outside, pyrophyllite rougher tailings progress pyrophyllite is scanned once, disleave alabaster is also obtained other than obtaining pyrophyllite and scanning chats
Pyrophyllite is scanned chats sequence and is back to upper level operation by tailing.
(5) regulator sulfuric acid 600g/t raw ore, collecting are sequentially added into the resulting disleave alabaster tailing ore pulp of step (3)
Agent mixed amine 20g/t raw ore carries out the roughing in chlorite flotation circuit, obtains chlorite rough concentrate and chlorite roughing tail
Mine；Then chlorite rough concentrate two epichlorites of progress are selected, it is selected every time to obtain the selected chats of respective chlorite, finally
Primary cleaning also obtains chlorite concentrate other than obtaining the selected chats of chlorite, and the selected chats of respective chlorite is suitable respectively
Sequence is back to upper level operation；In addition, chlorite rougher tailings progress chlorite is scanned once, scanned in addition to obtaining chlorite
Chlorite is scanned chats sequence and is back to upper level operation by the bauxite that high-quality is also obtained outside chats.
In step (2), based on ore quality ratio, the selected addition butyl xanthate 40g/t raw ore of each pyrite, xanthan gum
300g/t raw ore；Each pyrite, which is scanned, is added butyl xanthate 80g/t raw ore, methyl isobutyl carbinol 30g/t raw ore.
In step (4), based on ore quality ratio, the selected addition sulfuric acid 400g/t raw ore of each pyrophyllite, ether amines 20g/t
Raw ore, foaming agent methyl isobutyl carbinol 10g/t raw ore；Pyrophyllite, which is scanned, is added ether amines 20g/t raw ore, foaming agent methyl tert-butyl
Base methanol 10g/t raw ore.
In step (5), based on ore quality ratio, the selected addition sulfuric acid 120g/t raw ore of every epichlorite, fatty amine
18g/t raw ore；Chlorite, which is scanned, is added fatty amine 15g/t raw ore.
3, FLOTATION SEPARATION test index
FLOTATION SEPARATION index is shown in Table 4.
Table 4
By the test result of table 4 it is found that the complicated refractory sulfide of association silicon/bauxite resource uses flotation of the invention
Technique has been similarly obtained the pyrite and bauxite and pyrophyllite, chlorite and sludge of high-quality, wherein the sulphur product of pyrite
Position reaches 48% or more, and the alumina silica ratio of bauxite reaches 6.0, and index is excellent, has reached the mesh of mineral resources high-efficiency comprehensive utilization
's.
Embodiment 5
1, ore characteristic
Certain complicated refractory sulfide of association silicon/bauxite resource, ore is mainly by pyrite, pyrophyllite, diaspore
With the mineral compositions such as a small amount of kaolinite, montmorillonite, chlorite, anatase；S grade is 16.4% in ore, and sulphur is with pyrite mine
Object form exists, and the process mineralogy granularity of pyrite is between 0.001mm~1.32mm, generally between 0.01mm~0.15mm；
Industrial aluminium mineral is mainly diaspore in ore, mutually mixed in together with the mineral such as pyrophyllite, kaolinite, montmorillonite,
And granularity is fine, sorting difficulty is big.
2, ore-dressing technique
(1) by refractory sulfide raw ore carry out ore grinding, then to ore milling product carry out wet screening, separate -74 μm and+
74 μm of grade parts, the grinding operation that+74 μm of grades therein part returns to upper level are regrinded；What is finally obtained enters floating sample
Product granularity is that -74 μm of grain size contents account for 100% into floating sample quality；
(2) to step (1) it is resulting enter floating sample in sequentially add sodium hexametaphosphate dispersant 700g/t raw ore, collecting agent
Butyl xanthate 250g/t raw ore, inhibitor xanthan gum 800g/t raw ore, foaming agent methyl isobutyl carbinol 80g/t raw ore carry out
Roughing in flotation of pyrite process obtains pyrite rough concentrate and pyrite rougher tailings；Then by pyrite rough concentrate into
At least pyrite is selected three times for row, and selected every time to obtain the selected chats of respective pyrite, last time is selected in addition to obtaining Huang
The sulphur ore that high-quality is also obtained outside iron ore choiceness chats, the selected chats of respective pyrite is sequentially back to respectively
Level-one operation；Scanned in addition, pyrite rougher tailings is carried out pyrite twice, scan to obtain every time it is respective scan chats,
It scans for the second time and also obtains desulfurization tailing other than obtaining scanning chats, respective pyrite is scanned chats, and sequence returns respectively
To upper level operation.
(3) the desulfurization tailing for obtaining step (2) use lamella thickener, carry out sedimentation desliming, respectively obtain granularity be-
28 μm of sludge and desliming mineral；
(4) regulator sulfuric acid 800g/t raw ore, the inclined phosphorus of dispersing agent six are sequentially added into the resulting desliming mineral of step (3)
Sour sodium 500g/t raw ore, collecting agent ether amines and coco amine 22g/t raw ore, foaming agent methyl isobutyl carbinol 20g/t raw ore carry out
Roughing in pyrophyllite flotation circuit obtains pyrophyllite rough concentrate and pyrophyllite rougher tailings；Then by pyrophyllite rough concentrate into
Pyrophyllite is selected three times for row, and selected every time to obtain the selected chats of respective pyrophyllite, last time is selected in addition to obtaining pyrophyllite
Pyrophyllite concentrate is also obtained outside selected chats, the selected chats of respective pyrophyllite is sequentially back to upper level operation respectively；This
Outside, pyrophyllite rougher tailings progress pyrophyllite is scanned once, disleave alabaster is also obtained other than obtaining pyrophyllite and scanning chats
Pyrophyllite is scanned chats sequence and is back to upper level operation by tailing.
(5) regulator sulfuric acid 500g/t raw ore, collecting are sequentially added into the resulting disleave alabaster tailing ore pulp of step (3)
Agent fatty amine, octadecylamine, lauryl amine and mixed amine 20g/t raw ore carry out the roughing in chlorite flotation circuit, obtain chlorite
Rough concentrate and chlorite rougher tailings；Then chlorite rough concentrate two epichlorites of progress are selected, it is selected every time to obtain respectively
The selected chats of chlorite, last time it is selected also obtains chlorite concentrate other than obtaining the selected chats of chlorite, will be respective
The selected chats of chlorite be sequentially back to upper level operation respectively；In addition, chlorite rougher tailings progress chlorite is scanned
Once, chlorite is scanned chats sequence and is back to by the bauxite that high-quality is also obtained other than obtaining chlorite and scanning chats
Upper level operation.
In step (2), based on ore quality ratio, the selected addition butyl xanthate 30g/t raw ore of each pyrite, xanthan gum
300g/t raw ore；Each pyrite, which is scanned, is added butyl xanthate 50g/t raw ore, methyl isobutyl carbinol 30g/t raw ore.
In step (4), based on ore quality ratio, the selected addition sulfuric acid 375g/t raw ore of each pyrophyllite, ether amines 20g/t
Raw ore, foaming agent methyl isobutyl carbinol 7g/t raw ore；Pyrophyllite, which is scanned, is added ether amines 15g/t raw ore, foaming agent methyl tert-butyl
Base methanol 10g/t raw ore.
In step (5), based on ore quality ratio, the selected addition sulfuric acid 100g/t raw ore of every epichlorite, fatty amine
18g/t raw ore；Chlorite, which is scanned, is added fatty amine 12g/t raw ore.
3, FLOTATION SEPARATION test index
FLOTATION SEPARATION index is shown in Table 5.
Table 5
By the test result of table 5 it is found that the complicated refractory sulfide of association silicon/bauxite resource uses flotation of the invention
Technique has been similarly obtained the pyrite and bauxite and pyrophyllite, chlorite and sludge of high-quality, wherein the sulphur product of pyrite
Position reaches 50% or more, and the alumina silica ratio of bauxite reaches 6.8, and index is excellent, has reached the mesh of mineral resources high-efficiency comprehensive utilization
's.
Finally, it should be noted that the above examples are only used to illustrate the technical scheme of the present invention rather than limits, although ginseng
Technical solution of the present invention is described in detail according to preferred embodiment, it will be appreciated by those skilled in the art that can be to this
The technical solution of invention is modified or replaced equivalently, and without departing from the purpose and scope of the invention, should all be covered at this
In the protection scope of invention.
Claims (8)
1. a kind of difficult sulfide flotation technique of complexity of association silicon/aluminium, which comprises the steps of:
1) ore grinding: raw ore ore grinding, then opposite grinding mineral material is sieved, and is obtained into floating mineral, and entering granularity in floating mineral is -74 μm
Account for the 90%-100% into floating ore weight；
2) flotation of pyrite: enter flotation pyrite in floating mineral from step 1) gained, obtain sulphur ore and desulfurization tailing；
3) desliming: the desulfurization tailing obtained to step 2) carries out sedimentation desliming, obtains desliming mineral and sludge；
4) pyrophyllite flotation: the flotation pyrophyllite from desliming mineral obtained by step 3) obtains pyrophyllite concentrate and disleave alabaster tail
Mine, the flotation of this step includes 1. roughing, 2. selected and 3. scan；Roughing, it is the roughing of this step, selected and during scanning, add
Add collecting agent, collecting agent is any one of ether amines and coco amine or two kinds of combination；
5) chlorite flotation: the flotation chlorite from disleave alabaster tailing obtained by step 4) obtains chlorite concentrate and bauxite,
The flotation of this step includes 1. roughing, 2. selected and 3. scan；Roughing, the roughing of this step, selected and during scanning, addition is caught
Agent is received, collecting agent is any one of fatty amine, octadecylamine, lauryl amine and mixed amine or several combination.
2. a kind of difficult sulfide flotation technique of complexity of association silicon/aluminium according to claim 1, which is characterized in that
When step 4) roughing, in Xiang Suoshu desliming mineral be added roughing medicament, the medicament include dispersing agent, collecting agent, regulator and
Foaming agent, roughing obtain pyrophyllite rough concentrate and pyrophyllite rougher tailings；
Be added selected medicament when step 4) is selected into pyrophyllite rough concentrate, the selected medicament include collecting agent, regulator and
Foaming agent, it is selected to obtain the selected chats of pyrophyllite and pyrophyllite concentrate；
It is added when step 4) is scanned into pyrophyllite rougher tailings and scans medicament, the medicament of scanning includes collecting agent and blistering
Agent scans to obtain pyrophyllite and scans chats and disleave alabaster tailing.
3. a kind of difficult sulfide flotation technique of complexity of association silicon/aluminium according to claim 1 or 2, feature exist
In,
Roughing medicament is added when step 5) roughing into disleave alabaster tailing, roughing medicament described in this step includes collecting agent and tune
Whole dose, the roughing of this step obtains chlorite rough concentrate and chlorite rougher tailings；
Selected medicament is added when step 5) is selected into chlorite rough concentrate, the selected medicament of this step includes collecting agent and adjustment
Agent, flotation obtain the selected chats of chlorite and chlorite concentrate；
Collecting agent is added when step 5) is scanned into chlorite rougher tailings, flotation obtains chlorite and scans chats and bauxite.
4. the floatation process of the difficult multi-metal sulfide of complexity according to claim 2, which is characterized in that step 4)
In, regulator is sulfuric acid when roughing, dispersing agent is calgon and foaming agent is methyl isobutyl carbinol；Preferably, described
Regulator dosage is 750-900g/t raw ore, and dispersant dosage is 300-500g/t raw ore, and collector dosage is 15-30g/t former
Mine, frother dosages are 10-20g/t raw ore；
Preferably, in step 4), regulator is sulfuric acid when selected, foaming agent is methyl isobutyl carbinol；Regulator dosage is
350-400g/t raw ore, collector dosage 10-20g/t raw ore, frother dosages are 5-10g/t raw ore；
Preferably, in step 4), foaming agent is methyl isobutyl carbinol when scanning；When scanning, collector dosage 10-20g/t is former
Mine, frother dosages are 5-10g/t raw ore.
5. the floatation process of the difficult multi-metal sulfide of complexity according to claim 4, which is characterized in that step 4) institute
Stating selected is at least three times；Preferably, the selected chats of pyrophyllite obtained by step 4) and pyrophyllite scan chats sequence return respectively
To upper level operation.
6. the floatation process of the difficult multi-metal sulfide of complexity according to claim 1, which is characterized in that step 5)
In, roughing and selected regulator used are sulfuric acid；
Preferably, regulator dosage is 450-600g/t raw ore when roughing in step 5), and collector dosage is 10-20g/t raw ore；
Regulator dosage is 80-120g/t raw ore when selected in step 5), and collector dosage is 8-18g/t raw ore；In step 5), scan
When collector dosage be 10-15g/t raw ore.
7. the floatation process of the difficult multi-metal sulfide of complexity according to claim 6, which is characterized in that step 5) institute
It states selected at least twice.
8. the floatation process of the difficult multi-metal sulfide of complexity according to claim 6, which is characterized in that step 5) institute
It obtains the selected chats of chlorite and chlorite scans chats and is sequentially back to upper level operation respectively.
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