CN107470033A - A kind of method polluted from Sources controlling zinc sulfide mineral and iron sulfide mineral flotation - Google Patents
A kind of method polluted from Sources controlling zinc sulfide mineral and iron sulfide mineral flotation Download PDFInfo
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- CN107470033A CN107470033A CN201710645214.8A CN201710645214A CN107470033A CN 107470033 A CN107470033 A CN 107470033A CN 201710645214 A CN201710645214 A CN 201710645214A CN 107470033 A CN107470033 A CN 107470033A
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- flotation
- sulfide mineral
- mineral
- zinc
- iron sulfide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/02—Froth-flotation processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B1/00—Conditioning for facilitating separation by altering physical properties of the matter to be treated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/002—Inorganic compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/06—Depressants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2203/00—Specified materials treated by the flotation agents; specified applications
- B03D2203/02—Ores
- B03D2203/04—Non-sulfide ores
- B03D2203/06—Phosphate ores
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
A kind of method polluted from Sources controlling zinc sulfide mineral and iron sulfide mineral flotation, it is characterised in that：The mineral of Containing Sulfur zinc and iron sulfide are passed through into grinding, the grain amount for being milled down to below 0.074mm reaches 60% 95% scope of mineral cumulative volume, after adding water to be deployed into the ore pulp of solids content 25% 50%, according to the strong and weak order arrangement flotation principle process of the native floatability of zinc sulfide mineral and iron sulfide mineral, the order of flotation iron sulfide mineral carries out zinc sulphide and pyritic FLOTATION SEPARATION after first flotation zinc sulfide mineral；And lime is not added in the operation of flotation zinc sulfide mineral, zinc sulfide mineral flotation is carried out using the method gently suppressed；Sulfuric acid or hydrochloric acid are not added in the operation of flotation iron sulfide mineral, iron sulfide mineral flotation is carried out using the method for light work.
Description
Technical field
The present invention relates to a kind of flotation cleaning manufacturing technique method, and in particular to a kind of sulphur based on pollution source control
Change zinc mineral and the cleaning manufacturing technique method of iron sulfide mineral FLOTATION SEPARATION, this method is with overcoming tradition plus lime method band
The concentrate and tailings water pH value come is up to more than 12, it is necessary to which acid adding adjusts lead, zinc, cadmium etc. in ability qualified discharge, and tail water
The problem of heavy metal ion content severe overweight, it is a kind of cleaning manufacturing technique method based on pollution source control, belongs to ore deposit
Thing processing flotation technology field.
Background technology：
The method of conventional zinc sulfide mineral and iron sulfide mineral FLOTATION SEPARATION has two kinds both at home and abroad, and one kind is diffeential floatation stream
Journey, first add lime and adjust slurry pH more than 12 to suppress iron sulfide mineral, add activator and collecting agent flotation sulphur
Change zinc mineral, slurry pH then is adjusted to neutral even acid condition to activate repressed sulphur with sulfuric acid to floating zinc mine tailing again
Change iron mineral, then with collecting agent flotation zinc sulfide mineral；Another kind is bulk flotation flow, is first being not added with lime or addition on a small quantity
Under conditions of lime, with activator and collecting agent are by zinc sulfide mineral and iron sulfide mineral while flotation is into bulk concentrate, then
To bulk concentrate in addition large quantities of lime（PH value reaches more than 12）Under conditions of, suppress iron sulfide mineral, flotation zinc sulfide ore
Thing.
Both zinc sulfide minerals and iron sulfide mineral flotation separation method, large quantities of lime will be used in process of production
（As Shuikoushan Kang Jia gulfs Pb-Zn deposits use 5-6 kgs/tonne of raw ore of lime consumption, Huangshaping lead and zinc mine is public using lime 10-13
Jin/ton raw ore, all mouth Pb-Zn deposits use 11-15 kgs/tonne of raw ore of lime）Although the production history of both processes is swung
Long, technical maturity is reliable, can obtain stable separating effect, but with the shortcomings that it is also a lot, prepared except milk of lime is difficult and
Outside the easy fouling and clogging problem of pipeline for adding milk of lime, also in the presence of serious problem of environmental pollution, it is mainly manifested in：
（1）Tail water pH is exceeded.The zinc sulfide concentrates, the iron sulfide concentrate and tailings that are obtained using lime technology remove the pH value of water
Often more than 12, the serious industrial wastewater discharge standard for exceeding pH6-9, the acid adding into tail water is needed to carry out in waste water processing station
Neutralize；Often the sour amount control of appearance addition is improper, and pH value of water solution is transferred to less than 6 acidity, and needs are anti-again adds alkali to adjust pH
It is worth to neutrality.Therefore, pH value of waste water how is adjusted to 6-9 critical field, is turned into and is made execute-in-place work and administrative staff frequent
The problem of headache.
（2）Tail water heavy metal ion and COD content overproofs.Because of the zinc sulfide concentrates, the iron sulfide that are obtained using lime technology
The pH value of concentrate and tailings removing water often more than 12, cause the heavy metal pollution factors such as lead in tail water, zinc, cadmium, sulphur and
COD contents are often exceeded.
All it is in the past few decades the development pattern for taking extensive style in traditional mine industry, takes pollution mostly and produce
" end treatment " measure of pollution administration again afterwards, but present all trades and professions all growing interest clean manufacturings all over the world, advocate ring
Border protection work should change from past single end treatment to the process for cleanly preparing of pollution source control.Just as vulcanizing
Lime is used during zinc mineral and iron sulfide mineral FLOTATION SEPARATION, pH value and the exceeded energy of heavy metal ion for generating tail water are dirty
Dye problem, past are all to use to adjust tail water using acid adding, aggravate the end treatments such as metal traps heavy-metal ion removal
Measure, few people expect root caused by problems above, are all because employing substantial amounts of lime in process of production.
Because adding, lime carries out zinc sulfide mineral and the production method of iron sulfide mineral FLOTATION SEPARATION is with a long history, and technical maturity can
Lean on, stable separating effect, and lime wide material sources can be obtained, it is cheap, therefore, less paid attention to environment guarantor in the past
Can the epoch of shield, also few people's thinking be accomplished to be not added with lime to realize pollution source control, to thereby result in the pollution of flotation
Getting worse, it is necessary that this is improved.
By patent retrieval and do not find there be the patent literature constructed with the present invention, have certain relation with the present invention
Patent mainly have it is following：
1st, Patent No. CN201610842051.8, the patent of invention of entitled " a kind of method of zinc sulfide ore direct flotation ",
Which disclose a kind of method of zinc sulfide ore direct flotation, zinc sulfide ore stone mill ore deposit be made ore pulp, regulation pH values of pulp to
6-11, collecting agent N- alkyl nabam, foaming agent terpenic oil are then added, be not added with or add a small amount of activator sulfuric acid
Copper, carry out flotation.Using this method can realize zinc sulfide ore without member direct flotation or significantly reduce the use of copper sulphate
Amount, be advantageous to the FLOTATION SEPARATION of follow-up zinc sulphide and other metal sulfides.
2nd, Patent No. CN201510862686.X, it is entitled " zinc oxide to be reclaimed in a kind of flotation tailing from zinc sulphide
The patent of invention of method ", a kind of method that zinc oxide is reclaimed in flotation tailing from zinc sulphide is which disclose, including it is as follows
Step：(1) high alkalinity zinc sulphide flotation tailing is concentrated into 45wt%, adds 800g/t-1200g/ citric acids, stirring reaction
10-15 minutes.(2) vulcanized sodium 2-3kg/t is added, stirring reaction 5 minutes, clear water is then added, by concentration dilution to 30wt%.
(3) primary octadecylamine acetate 300-500g/t, stirring reaction 5 minutes are added；(4) No. 2 oily 120-160g/t, stirring reaction are added
After 3 minutes, now pH values of pulp is in 8.5-9.5.Start inflation and scrape bubble flotation, you can obtain the zinc oxide product of high quality.
3rd, Patent No. CN200810214844.0, the patent of invention of entitled " a kind of pyritic method for floating ",
A kind of pyritic method for floating is which disclose, belongs to technical field of beneficiation.It is characterized in that vulcanize in non-ferrous metal
After ore deposit flotation, under the conditions of alkaline ore pulp, ammonium salt and sulfide are added as activator, adds collecting agent xanthate and foaming agent
After pine tar stirring, pyrites is floatingly selected.The addition of activator ammonium salt is 6~120mol/t raw ores in floatation process, activation
The addition of agent sulfide is 6~36mol/t raw ores, and collecting agent xanthate addition is 500g/t raw ores, and foaming agent pine tar adds
Measure as 50g/t raw ores.The method of the present invention can improve pyrites surface nature and its flotation conditions, accelerate pyrites and float
Speed, the pyrites rate of recovery and concentrate grade are improved, reduce floating agent consumption, reduce production cost.
Although these above-mentioned patents are directed to the flotation of iron sulfide or zinc sulphide, but by the reading to the patent,
It is known that in these patents and the not related and disclosed technical scheme of problem to be solved by this invention still all
Be that flotation is carried out using lime, also have no and propose not using the flotation processing scheme of lime, thus it is noted earlier the problem of
Still have, still need further to be improved.
The content of the invention
The goal of the invention of the present invention is for present in present zinc sulfide mineral and iron sulfide mineral flotation separation method
The problem of, a kind of zinc sulphide and pyrites FLOTATION SEPARATION cleaning manufacturing technique method based on pollution source control are proposed, should
Kind zinc sulphide and pyrites FLOTATION SEPARATION cleaning manufacturing technique method can be in the whole mistakes of the operation of flotation zinc sulfide mineral
Lime is not added in journey, and does not add sulfuric acid or hydrochloric acid in the operation of flotation iron sulfide mineral, reaches process for cleanly preparing side
The purpose of method.
In order to reach this purpose, the invention provides one kind from Sources controlling zinc sulfide mineral and iron sulfide mineral flotation
The method of pollution, by the mineral of Containing Sulfur zinc and iron sulfide by grinding, the grain amount for being milled down to below 0.074mm reaches mineral
The 60%-95% of cumulative volume scope, after adding water to be deployed into solids content 25%-50% ore pulp, according to zinc sulfide mineral and vulcanization
The strong and weak order arrangement flotation principle process of the native floatability of iron mineral, flotation iron sulfide mineral after first flotation zinc sulfide mineral
Order carry out zinc sulphide and pyritic FLOTATION SEPARATION；And lime is not added in the operation of flotation zinc sulfide mineral, use
The method gently suppressed carries out zinc sulfide mineral flotation；Sulfuric acid or hydrochloric acid are not added in the operation of flotation iron sulfide mineral, using light
The method of activation carries out iron sulfide mineral flotation.
Further, the method that described use gently suppresses carries out zinc sulfide mineral flotation：During flotation zinc sulfide mineral
The inhibitor of iron sulfide mineral is done instead of lime using light inhibitor, and controls the pH value of flotation pulp in 6-9 neutral range,
Carry out zinc sulfide mineral flotation.
Further, described light inhibitor is nonmetallic hydrochlorate and its nonmetallic hydrochlorate of oligomer, monothio and its low
Polymers, two thio nonmetallic hydrochlorates and its oligomer, three streams for nonmetallic hydrochlorate and its nonmetallic hydrochlorate of oligomer, tetrathio and
One or more of mixtures of its oligomer；Nonmetallic hydrochlorate and its oligomer, the nonmetallic hydrochlorate of monothio and its oligomer,
Two thio nonmetallic hydrochlorates and its oligomer, three nonmetallic hydrochlorates of thio non-metallic acid salt and its oligomer, tetrathio and its low
Polymers, mixed according to any weight ratio.
Further, the method using light work, which carries out iron sulfide mineral flotation, is：Flotation iron sulfide mineral is adopted
Light work agent replaces sulfuric acid or hydrochloric acid to make the activator of iron sulfide mineral, and is controlled by way of being not added with sulfuric acid or hydrochloric acid
The pH value of flotation pulp is in 6-9 neutral range, progress iron sulfide mineral flotation.
Further, described activator is in copper sulphate, silver sulfate, ammonium sulfate, copper nitrate, silver nitrate, ammonium nitrate
One or more of mixtures.
Further, the order strong and weak according to the native floatability of zinc sulfide mineral and iron sulfide mineral is arranged floating
It is first diffeential floatation zinc sulfide mineral to select principle process, then flotation iron sulfide mineral, respectively obtains zinc sulfide concentrates and iron sulfide
Concentrate；Zinc sulfide mineral flotation operation and iron sulfide mineral flotation operation all use one roughing once purging selection and primary cleaning stream
Journey；In zinc sulphide flotation operation, lime consumption zero, light inhibitor is taken to suppress iron sulfide mineral, dosage 300g/t；In sulphur
Change iron flotation operation, sulfuric acid or hydrochloric acid dosage are zero, using light work agent, dosage 80g/t；Its zinc sulfide concentrates obtained, sulphur
Change iron ore concentrate and mine tailing removes neutral range of the pH value in 6-9 of water.
The advantage of the invention is that：
1st, present invention process suppresses iron sulfide mineral flotation zinc sulfide mineral, its flotation using the light suppressing method for not adding lime
The slurry pH of the operation of zinc sulfide mineral, with the known inhibitor flotation zinc sulfide mineral that iron sulfide mineral is done using lime
Operation slurry pH be up to it is more than 12 significantly different, in 6-9 neutral range.
2nd, present invention process is using the light activation method flotation iron sulfide mineral for not adding sulfuric acid or hydrochloric acid, its flotation sulphur
Change the slurry pH of the operation of iron mineral, the pH values of pulp with the iron sulfide mineral flotation operation after known flotation zinc sulfide mineral
Be worth it is low significantly different to less than 6, in 6-9 neutral range.
3rd, present invention process suppresses iron sulfide mineral flotation zinc sulfide mineral using the light suppressing method for not adding lime, its
The slurry pH of the operation of flotation zinc sulfide mineral causes the operation of flotation zinc sulfide mineral to obtain in 6-9 neutral range
Zinc sulfide concentrates slurry removing water pH value, pyrites inhibitor flotation zinc sulfide mineral is done using lime with known
The pH value of the removing water for the zinc sulfide concentrates slurry that operation obtains be up to it is more than 12 significantly different, in 6-9 neutral range.
4th, present invention process is using the light activation method flotation iron sulfide mineral for not adding sulfuric acid or hydrochloric acid, its flotation vulcanization
The slurry pH of the operation of iron mineral is in 6-9 neutral range, the iron sulfide for causing the operation of flotation iron sulfide mineral to obtain
The pH value of the removing water of concentrate slurry and Tailings Slurry, first lime is added to suppress iron sulfide mineral flotation zinc sulfide mineral with known
Afterwards, then the pH value of the removing water of the vulcanization iron ore concentrate slurry that obtains of flotation operation of acid adding cure activation iron mineral and Tailings Slurry low arrives
Less than 6 is significantly different, in 6-9 neutral range.
5th, the vulcanization iron ore concentrate slurry that present invention process obtains is flotation froth ore pulp, and pulp density is up to more than 40%, with public affairs
First bulk flotation zinc sulphide and the iron sulfide mineral in the case where not adding the slurry pH 6-9 neutrallty condition of lime, then to sulphur known
Change the bulk concentrate of zinc and iron sulfide mineral, addition lime slurry pH be up to more than 12 it is high-alkali under the conditions of suppressed
Iron sulfide mineral, the vulcanization iron ore concentrate slurry that the floatation separation process of flotation zinc sulfide mineral obtains is ore pulp in groove, pulp density
As little as less than 25% has significant difference.
The benefit that the present invention is brought shows the following aspects：
First, whole process eliminates lime, beneficiation reagent cost can be saved；
It second, whole process eliminates lime, can be not provided with washing the post with lime, save and select factory's post recruitment, reduce ore dressing
Produce cost of human resources；
Third, whole process does not add lime, overcoming difficult easy fouling and clogging of pipeline prepared and add milk of lime of milk of lime etc. influences
The problem of production target；
Fourth, the flotation operation in iron sulfide mineral need not add sulfuric acid or hydrochloric acid, solve because sulfuric acid and hydrochloric acid are easily to make
Drugs, the problem of all very troublesome is used and examined in some places；
Fifth, the pH value of the removing water of concentrate and tailings, in the 6-9 of qualified discharge standard neutral range, concentrate and tailings takes off
Heavy metal ion content and COD contents in water removal will be lower than the technique of tradition plus lime, or even concentrate and tailings removing water
In heavy metal ion content and COD contents without it is any processing just already below discharge standard.
Brief description of the drawings
Fig. 1 is zinc sulphide and pyrites FLOTATION SEPARATION process for cleanly preparing flow of the invention based on pollution source control
Figure；
Fig. 2 is existing zinc sulfide mineral and iron sulfide mineral bulk flotation separating technology flow chart again.
Embodiment
The embodiment of the present invention is further described with reference to example, but cited embodiment is not
Limitation of the present invention.
Embodiment one
Certain zinc sulfide ore, containing zinc 4.9%, sulfur-bearing 11% or so.
Opened according to the first diffeential floatation zinc sulfide mineral of the invention shown in Fig. 1, then the experiment process of flotation iron sulfide mineral
Closed circuit flow test is opened up, respectively obtains zinc sulfide concentrates and vulcanization iron ore concentrate, zinc sulfide mineral flotation operation and iron sulfide mineral
Flotation operation all uses one roughing once purging selection and primary cleaning flowage structure, has carried out the closed circuit flow examination of 5 circulations altogether
Test, take the 4th wheel and the average value of the 5th wheel result of the test to be shown in Table 1 as final result of the test.
Zinc sulphide and iron sulfide mineral FLOTATION SEPARATION process for cleanly preparing of the embodiment one of table 1 based on pollution source control
Result of the test
Embodiment two
Embodiment two is the comparative example of the present invention, is vulcanization of the identical sample ore used in embodiment one using tradition addition lime
Reference examples of the pyritic sorting process of flotation again after zinc diffeential floatation
Experiment process according to the first flotation zinc sulfide mineral shown in Fig. 2, then flotation iron sulfide mineral carries out closed circuit flow test,
Zinc sulfide concentrates and vulcanization iron ore concentrate are respectively obtained, zinc sulfide mineral flotation operation and iron sulfide mineral flotation operation all use one
Secondary roughing once purging selection and primary cleaning flowage structure, carry out the closed circuit flow test of 5 circulations altogether, take the 4th wheel and the 5th wheel
The average value of result of the test is shown in Table 2 as final result of the test.
The zinc sulfide mineral and iron sulfide mineral order FLOTATION SEPARATION result of the test of certain addition lime of the embodiment 2 of table 2
Embodiment three
Embodiment three is that identical sample ore used in embodiment 1 uses traditional zinc sulphide for adding lime and pyrites bulk flotation again
The reference examples of separating technology.
According to bulk flotation, separation test flow carries out closed circuit flow test again, respectively obtains zinc sulfide concentrates and iron sulfide
Concentrate, bulk flotation operation and separating flotation operation all use one roughing once purging selection and primary cleaning flowage structure, open altogether
The closed circuit flow test of 5 circulations has been opened up, has taken the 4th wheel and the average value of the 5th wheel result of the test to be shown in Table as final result of the test
3。
The zinc sulfide mineral and iron sulfide mineral bulk flotation separation test result again of certain addition lime of the embodiment 3 of table 3
Pass through the analysis of the concentrate and tailings filtering water to embodiment 1, embodiment 2 and embodiment 3, the zinc sulfide concentrates of acquisition
Filter water, vulcanization iron ore concentrate filter water and tailing filtration water carry out water analysis, the results are shown in Table 4.
Product filter water of the table 4 without lime sorting process contrasts with conventional lime sorting process product filter water water quality
From table 4, embodiment 2 uses first flotation zinc sulfide mineral, then the sulphur of the experiment process acquisition of flotation iron sulfide mineral
The pH value for changing zinc concentrate filter water is up to 13 or so, and embodiment 3 is separated again using zinc sulphide and iron sulfide mineral bulk flotation
The zinc sulfide concentrates and the pH value of vulcanization iron ore concentrate filter water that experiment process obtains all are up to more than 12.5, but embodiment 1 uses
The zinc sulfide mineral of five lime and the technique of iron sulfide mineral FLOTATION SEPARATION, the zinc sulfide concentrates of acquisition and the mistake of vulcanization iron ore concentrate
Neutral range of the pH value of drainage 8 or so.The zinc sulfide concentrates mistake that the conventional flotation flow using lime of embodiment 2 obtains
Drainage and embodiment 3 are obtained using the conventional flotation flow of lime and vulcanization iron ore concentrate filter water, pH value therein, lead,
Zinc, COD and S contents all arrange standard, but the zinc sulfide concentrates filter water without the acquisition of lime sorting process, sulphur outside national regulation
Change in iron concentrate filtering water, this several pollution factors illustrates using without the acquisition of lime sorting process all outside within row's standard
Zinc sulfide concentrates and vulcanization iron ore concentrate filter water, with the zinc sulfide concentrates and iron sulfide obtained using the conventional flotation flow of lime
Concentrate filter water is compared, and water cleaning is much.
It will be apparent that it should be understood that these embodiments are only illustrative of the invention and is not intended to limit the scope of the invention,
After reading the present invention, modification of the those skilled in the art to the various equivalent form of values of the present invention each falls within right appended by the application will
Seek limited range.
The advantage of the invention is that：
The benefit that the present invention is brought shows the following aspects：
First, whole process eliminates lime, beneficiation reagent cost can be saved；
It but whole process eliminates lime, can be not provided with washing the post with lime, save and select factory's post recruitment, reduce ore dressing
Produce cost of human resources；
Third, whole process does not add lime, overcoming difficult easy fouling and clogging of pipeline prepared and add milk of lime of milk of lime etc. influences
The problem of production target；
Fourth, the flotation operation in iron sulfide mineral need not add sulfuric acid or hydrochloric acid, solve because sulfuric acid and hydrochloric acid are easily to make
Drugs, the problem of all very troublesome is used and examined in some places；
Fifth, the pH value of the removing water of concentrate and tailings, in the 6-9 of qualified discharge standard neutral range, concentrate and tailings takes off
Heavy metal ion content and COD contents in water removal will be lower than the technique of tradition plus lime, or even concentrate and tailings removing water
In heavy metal ion content and COD contents without it is any processing just already below discharge standard.
Claims (6)
- A kind of 1. method polluted from Sources controlling zinc sulfide mineral and iron sulfide mineral flotation, it is characterised in that：By Containing Sulfur The mineral of zinc and iron sulfide are milled down to the 60%-95% of below 0.074mm grain amount arrival mineral cumulative volume model by grinding Enclose, after adding water to be deployed into solids content 25%-50% ore pulp, the native floatability according to zinc sulfide mineral and iron sulfide mineral is strong Weak order arrangement flotation principle process, the order of flotation iron sulfide mineral carries out zinc sulphide and sulphur after first flotation zinc sulfide mineral Change the FLOTATION SEPARATION of iron ore；And lime is not added in the operation of flotation zinc sulfide mineral, vulcanized using the method gently suppressed Zinc mineral flotation；Sulfuric acid or hydrochloric acid are not added in the operation of flotation iron sulfide mineral, iron sulfide is carried out using the method for light work Mineral floating.
- 2. the method polluted as claimed in claim 1 from Sources controlling zinc sulfide mineral and iron sulfide mineral flotation, its feature It is：The method that described use gently suppresses carries out zinc sulfide mineral flotation：Light inhibitor is used during flotation zinc sulfide mineral The inhibitor of iron sulfide mineral is made instead of lime, and controls the pH value of flotation pulp in 6-9 neutral range, carries out zinc sulfide ore Thing flotation.
- 3. the method polluted as claimed in claim 2 from Sources controlling zinc sulfide mineral and iron sulfide mineral flotation, its feature It is：Described light inhibitor is nonmetallic hydrochlorate and its nonmetallic hydrochlorate of oligomer, monothio and its oligomer, two thio non- Metal acid-salt and its oligomer, three streams are for the one of nonmetallic hydrochlorate and its nonmetallic hydrochlorate of oligomer, tetrathio and its oligomer Kind or several mixtures；It is nonmetallic hydrochlorate and its oligomer, the nonmetallic hydrochlorate of monothio and its oligomer, two thio nonmetallic Hydrochlorate and its oligomer, the three nonmetallic hydrochlorates of thio non-metallic acid salt and its oligomer, tetrathio and its oligomer, according to any Weight ratio mixes.
- 4. the method polluted as claimed in claim 1 from Sources controlling zinc sulfide mineral and iron sulfide mineral flotation, its feature It is：The described method using light work carries out iron sulfide mineral flotation：The light work agent that flotation iron sulfide mineral uses The activator of iron sulfide mineral is made instead of sulfuric acid or hydrochloric acid, and the pH of flotation pulp is controlled by way of being not added with sulfuric acid or hydrochloric acid It is worth the neutral range in 6-9, carries out iron sulfide mineral flotation.
- 5. the method polluted as claimed in claim 4 from Sources controlling zinc sulfide mineral and iron sulfide mineral flotation, its feature It is：Described activator is one or more of in copper sulphate, silver sulfate, ammonium sulfate, copper nitrate, silver nitrate, ammonium nitrate Mixture.
- 6. the method polluted as claimed in claim 1 from Sources controlling zinc sulfide mineral and iron sulfide mineral flotation, its feature It is：The described order strong and weak according to the native floatability of zinc sulfide mineral and iron sulfide mineral arranges that flotation principle process is First diffeential floatation zinc sulfide mineral, then flotation iron sulfide mineral, respectively obtain zinc sulfide concentrates and vulcanization iron ore concentrate；Zinc sulfide ore Thing flotation operation and iron sulfide mineral flotation operation all use one roughing once purging selection and primary cleaning flow；Floated in zinc sulphide It is elected to be in industry, lime consumption zero, takes light inhibitor to suppress iron sulfide mineral, dosage 300g/t；In iron sulfide flotation operation, Sulfuric acid or hydrochloric acid dosage are zero, using light work agent, dosage 80g/t；Its zinc sulfide concentrates obtained, iron sulfide concentrate and tailings Remove neutral range of the pH value in 6-9 of water.
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| CN201710645214.8A CN107470033B (en) | 2017-08-01 | 2017-08-01 | Method for controlling flotation pollution of zinc sulfide minerals and iron sulfide minerals from source |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113262884A (en) * | 2020-10-28 | 2021-08-17 | 水口山有色金属有限责任公司 | Lime-free mineral separation process for lead-zinc raw ore |
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| CN107470033B (en) | 2019-12-06 |
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