CN110465411A - The diffeential floatation method of copper-lead sulfurized minerals - Google Patents
The diffeential floatation method of copper-lead sulfurized minerals Download PDFInfo
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- CN110465411A CN110465411A CN201910836743.5A CN201910836743A CN110465411A CN 110465411 A CN110465411 A CN 110465411A CN 201910836743 A CN201910836743 A CN 201910836743A CN 110465411 A CN110465411 A CN 110465411A
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- lead
- copper
- galena
- roughing
- concentrate
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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
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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
- B03D1/001—Flotation agents
- B03D1/018—Mixtures of inorganic and organic 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
- B03D1/00—Flotation
- B03D1/08—Subsequent treatment of concentrated product
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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
- 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
Abstract
The present invention relates to a kind of diffeential floatation methods of copper-lead sulfurized minerals, it includes common process by raw ore ore grinding, divide after copper roughing and obtains copper concentrate through secondary copper is selected all the way, another way is scanned through secondary copper, secondary lead roughing divides one to obtain lead concentrate through secondary lead is selected again, another is scanned to obtain tailing through secondary lead, it is characterized in that it further includes preparing galena inhibitor ZJ201, first galena is inhibited then to floatingly select galena with diethyldithiocarbamate using ZJ201, flotation can be carried out without first passing through any activation by the galena that ZJ201 inhibits, it, which has, can be such that various mineral in copper-lead sulfurized minerals efficiently separate, significantly improve copper concentrate, the rate of recovery and quality of lead concentrate, homemade ZJ201 asepsis environment-protecting, dosage is few, it is at low cost, addition safety, it is easy to use, in the floating of copper-lead sulfurized minerals Choosing separation aspect has the advantages that application value, is suitable for the application of mineral manufacture field.
Description
Technical field
The present invention relates to a kind of diffeential floatation methods of copper-lead sulfurized minerals, are suitable for the application of mineral manufacture field.
Background technique
With the raising of comprehensive utilization of resources level, most of nonferrous metal mines can all use the method for flotation from tailing
Middle recycling troilite, troilite is widely used in roasting relieving haperacidity, and pyrite cinder iron content is higher, can be used as the original of ironmaking
Material.
Troilite is that flotation obtains from the tailing of non-ferrous metal ore mostly, often the non-ferrous metals such as association copper,
The method that acid plant generallys use acidleach recycles copper from pyrite cinder, but since the sulfur content of troilite is all larger than 45%,
So that the temperature of troilite fluidized bed roasting is 850~950 DEG C high, the copper in pyrite cinder is caused to form coppe ferrite mostly, copper
Sulfuric acid leaching rate is about 30%, and a large amount of copper remains in acid leaching residue, not only causes the waste of copper resource, but also in acid leaching residue
Copper is harmful element for iron-smelting process.When in view of pyrite cinder acidleach sulfuric acid concentration lower (about 10g/L), the leaching of copper
Rate is lower (about 30%), and for the rate of recovery for improving copper, acidleach sulfuric acid concentration would generally be increased to 50g/L or more by acid plant, though
The leaching rate (can be of about 60%) of copper so can be greatly improved, but pH value is needed to use in lime and adjusted there are leachate
It just can be carried out copper extraction after to about 2.0, N-process can generate a large amount of calcium sulfate, these calcium sulfate can be on the hole of filter cloth
Crystallization, causes filter cloth usage amount larger, and production cost is higher, and has more calcium sulfate particle that can wear filter and be mixed into copper extraction
In stoste, the problems such as extraction split-phase is difficult, extractant consumption increases is caused.
To solve the above problems, as Chinese patent application 200810136201.9 discloses a kind of " plumbum-zinc vulcanizing mine electricity
Position control controling differential flotation process for copper ", the technique energy diffeential floatation plumbum-zinc vulcanizing mine, but obtained product copper concentrate and lead concentrate
The rate of recovery is lower, and in commercial scale, it is difficult to which effectively control pulp potential is in predetermined value；For another example Chinese patent
CN93114485.X discloses a kind of " method of electric potential regulating diffeential floatation copper-lead zinc sulfide ore ", and this method is by raw ore
Stone mill is broken and is mixed into ore pulp with water, and air is poured in obtained suspension and is adjusted to certain redox electricity
Position, then successively uses SO2、Ca(OH)2, collecting agent and foaming agent size mixing, then carry out the flotation of copper, but there is the SO used2
The deficiencies of having strong impulse stink, serious pollution being caused to environment；For another example Chinese invention patent application
201710801120.5 disclose a kind of " method of the complicated plumbum-zinc vulcanizing mine differential FLOTATION SEPARATION of part zincblende activation ",
This method is to reduce the flotation rate of chalcopyrite and unactivated zincblende by addition flotation rate regulator and pH regulator,
The copper concentrate that the bulk concentrate based on having activated and low lead zinc mutually contain successively is floatingly selected, the mixed of copper concentrate and copperized lead zinc can be obtained
Concentrate is closed, but exists and is unable to get lead concentrate, copper contained by bulk concentrate, lead, zinc grade are down to no market price and bulk concentrate
Zincblende has been activated mostly, is difficult to be separated again.
A kind of diffeential floatation method for researching and developing copper-lead sulfurized minerals thus just seems especially urgent and significant.
Summary of the invention
The task of the present invention is in order to overcome the shortcomings of prior art, a kind of diffeential floatation side of copper-lead sulfurized minerals is provided
Method not only can effectively solve the problem of environmental pollution of bichromate, can also solve Copper-lead mixed concentrate in existing separating technology
Reagent removal is difficult, big at high cost, the ropy problem of concentrate of Cu-Pb separation difficulty.
The task of the present invention is by the following technical programs to complete:
The diffeential floatation method of copper-lead sulfurized minerals, it includes that common process passes through after raw ore ore grinding, copper roughing points all the way
Secondary copper is selected to obtain copper concentrate, and another way is scanned through secondary copper, secondary lead roughing divides one to obtain lead concentrate through secondary lead is selected again,
Another is scanned to obtain tailing through secondary lead, it is characterised in that it further includes preparing galena inhibitor ZJ201, first uses ZJ201
Inhibit galena then to floatingly select galena with diethyldithiocarbamate, is not necessarily to first pass through any work by the galena that ZJ201 inhibits
Change can carry out flotation.
Percentage involved in specification is mass percent.
The present invention has the following advantages that or effect:
(1) it realizes to efficiently separating between mineral various in copper-lead sulfurized minerals, significantly improves copper concentrate, lead essence
The rate of recovery and quality of mine.
(2) prepared galena inhibitor ZJ201 asepsis environment-protecting, preparation method is simple, and dosage is few, at low cost, addition
It is safe, easy to use.
(3) there is application value in terms of the FLOTATION SEPARATION of copper-lead sulfurized minerals.
Detailed description of the invention
Fig. 1 is the process flow chart of well known copper-lead sulfurized minerals method for floating.
Fig. 2 is a kind of process flow chart of the diffeential floatation method of copper-lead sulfurized minerals proposed according to the present invention.
Explanation is described in further detail below in conjunction with attached drawing.
Specific embodiment
As shown in Figure 1, a kind of diffeential floatation method of copper-lead sulfurized minerals of the invention, it includes common process by raw ore
Divide after ore grinding, copper roughing and obtain copper concentrate through secondary copper is selected all the way, another way is scanned through secondary copper, secondary lead roughing divides one again
Lead concentrate is obtained through secondary lead is selected, another is scanned to obtain tailing through secondary lead, it is characterised in that it further includes preparing galena suppression
Preparation ZJ201 first inhibits galena then to floatingly select galena with diethyldithiocarbamate, the vulcanization inhibited by ZJ201 using ZJ201
Lead ore can carry out flotation without first passing through any activation.
Technique of the invention may furthermore is that:
The galena inhibitor ZJ201 is 0.5~2 part of phosphate using 5~10 parts of high-molecular compound, sulfurous
0.8~4 part of sour sodium, reacts 1~6 hour obtained liquid under the conditions of 50~80 DEG C by 0.1~0.5 part of catalyst.
The high-molecular compound is any one of carboxymethyl cellulose, guar gum, starch.
The phosphate is any one of sodium phosphate, sodium dihydrogen phosphate, disodium hydrogen phosphate.
The catalyst is using any one of polyethylene glycol, polyvinyl alcohol, urea or combination.
The Conventional process steps and specific process conditions are as follows:
(1) ore grinding, it is that -0.074mm accounts for 68%~74% that copper-lead sulphide ore, which is milled to fineness,；
(2) pulp density is adjusted to 25%~30% by copper roughing, and galena inhibitor first is added by 150~400g/t
ZJ201 stirs 5~10min, adds the collector of copper sulfides Z200 of 15~40g/t, through copper roughing, obtains copper rougher concentration and copper roughing
Tailing；
(3.1) copper is selected, by copper rougher concentration through selected twice, presses 60~100g/t, the addition side 30~50g/t lead respectively
Mine inhibitor ZJ201 is added potassium bichromate by 100g/t, 50g/t, obtains copper cleaner tailings and copper concentrate product；
(3.2) copper is scanned, and copper rougher tailings is scanned twice, is first added by 80~200g/t, 40~100g/t respectively
Galena inhibitor ZJ201, then collector of copper sulfides Z200 is added by 8~20g/t, 4~10g/t, it obtains lead roughing mine and copper scans tail
Mine；
Conduct is added by 15~30g/t, 8~15g/t respectively by lead roughing mine through lead roughing twice in (3.2.1) lead roughing
The diethyldithiocarbamate of galena collecting agent, then press 8~16g/t, 4~8g/t and No. 2 oil of foaming agent are added, obtain lead rougher concentration and lead roughing
Tailing；
(3.2.2) lead is selected, and lead rougher concentration is selected to be not required to add through selected twice that lead scans tailing and lead cleaner tailings
Any medicament；
(3.2.11) lead is scanned, and is added to lead rougher tailings by 4~8g/t and is carried out as the diethyldithiocarbamate of galena collecting agent
Lead is scanned, and obtains that lead scans chats and lead scans tailing, and lead scans tailing and enters Tailings Dam.
Described copper cleaner tailings return step (3.1) copper is selected to be selected again.
The copper is scanned tailing return previous step and is selected again.
Described lead cleaner tailings return step (3.2.2) lead is selected to be selected again.
The lead scans chats and returns to previous step respectively with lead cleaner tailings to be selected again.
The specific embodiment of the invention is further illustrated with comparative example combined with specific embodiments below.
Embodiment 1
The amount of pyrite cinder (cupric 1%) is 20t/h, is sized mixing, is added a certain amount of using the leachate of return
Sulfuric acid (spent acid that flue gas washing can be used to generate) and water, control pulp density 40%, sulfuric acid concentration 40g/L are controlled, about 80
4h, copper leaching rate 60% are leached at DEG C.Leach liquid measure about 30m3/ h, sulfuric acid concentration about 32g/L.Open a way out 13m3The leaching of/h
Liquid is diluted to sulfuric acid concentration 8g/L using cleaning solution and raffinate, then removes suspended matter, into copper Extraction electrodeposition process.It is remaining
Under leachate return be used as pyrite cinder adjusting slurry.Extractant consumption 2.81kg/t-Cu.
Embodiment 2
The amount of pyrite cinder (cupric 1%) is 20t/h, is sized mixing, is added a certain amount of using the leachate of return
Sulfuric acid (spent acid that flue gas washing can be used to generate) and water, control pulp density 40%, sulfuric acid concentration 50g/L are controlled, about 80
4h, copper leaching rate 65% are leached at DEG C.Leach liquid measure about 30m3/ h, sulfuric acid concentration about 40g/L.Open a way out 8m3The leaching of/h
Liquid is diluted to sulfuric acid concentration 8g/L using cleaning solution and raffinate, then removes suspended matter, into copper Extraction electrodeposition process.It is remaining
Under leachate return be used as pyrite cinder adjusting slurry.Extractant consumption 2.89kg/t-Cu.
Embodiment 3
The amount of pyrite cinder (cupric 1%) is 20t/h, is sized mixing, is added a certain amount of using the leachate of return
Sulfuric acid (spent acid that flue gas washing can be used to generate) and water, control pulp density 40%, sulfuric acid concentration 60g/L are controlled, about 80
4h, copper leaching rate 68% are leached at DEG C.Leach liquid measure about 30m3/ h, sulfuric acid concentration about 48g/L.Open a way out 6m3The leaching of/h
Liquid is diluted to sulfuric acid concentration 7.20g/L using cleaning solution and raffinate, then removes suspended matter, into copper Extraction electrodeposition work
Sequence.Remaining leachate, which returns, is used as pyrite cinder adjusting slurry.Extractant consumption 3.05kg/t-Cu.
Embodiment 4
The amount of pyrite cinder (cupric 1%) is 20t/h, is sized mixing, is added a certain amount of using the leachate of return
Sulfuric acid (spent acid that flue gas washing can be used to generate) and water, control pulp density 40%, sulfuric acid concentration 80g/L are controlled, about 80
4h, copper leaching rate 72% are leached at DEG C.Leach liquid measure about 30m3/ h, sulfuric acid concentration about 62g/L.Open a way out 6.45m3The leaching of/h
Liquid out is diluted to sulfuric acid concentration 10g/L using cleaning solution and raffinate, then removes suspended matter, into copper Extraction electrodeposition work
Sequence.Remaining leachate, which returns, is used as pyrite cinder adjusting slurry.Extractant consumption 3.12kg/t-Cu.
Comparative example
The amount of pyrite cinder (cupric 1%) is 20t/h, is sized mixing with water, and pulp density 40% is controlled, (can using sulfuric acid
The spent acid for using flue gas washing to generate) regulating vitriol oil concentration to 10g/L, leaches 4h, copper leaching rate 35% at about 80 DEG C.Leaching
Liquid outlet quantity about 30m3/ h, sulfuric acid concentration about 8g/L are directly entered copper Extraction electrodeposition process.Extractant consumption 2.98kg/t-Cu.
Comparative example 2
The amount of pyrite cinder (cupric 1%) is 20t/h, is sized mixing with water, and pulp density 40% is controlled, (can using sulfuric acid
The spent acid for using flue gas washing to generate) regulating vitriol oil concentration to 50g/L, leaches 4h, copper leaching rate 65% at about 80 DEG C.Leaching
Liquid outlet quantity about 30m3/ h, sulfuric acid concentration about 40g/L.Leachate is neutralized to plate compression after pH value about 2.0 using lime, filtrate into
Enter copper Extraction electrodeposition process.The sheet frame of plate and frame filter press will change once every year, and filter cloth will monthly change once, sheet frame and filter cloth
About 1,000,000 yuan/year of expense, extractant consumption 20kg/t-Cu.
It can be seen that from above-described embodiment and comparative example, present application addresses leaching rates and Low acid that high acidic oils improve copper
Extraction improves the contradiction of the extraction yield of copper, not only acid leaching system can be made to run under the conditions of peracid, but also reduces the addition of acid
Amount, part leachate can make sulfuric acid concentration be reduced to 3~12g/L, save in leachate using cleaning solution or raffinate dilution
With adjust pH value process, copper extraction stoste in solid suspension content substantially reduce, have copper leaching rate height, simple process,
The supplies consumptions such as filter cloth and extractant are few, the more low advantage of production cost.
As described above, the present invention can be better realized.Above-described embodiment is only the optimal embodiment of the present invention, but this
The embodiment of invention is simultaneously not restricted to the described embodiments, what other were done without departing from the spirit and principles of the present invention
Change, modification, replacement, combination, simplify, should be equivalent substitute mode, be included in protection scope of the present invention.
Claims (10)
1. the diffeential floatation method of copper-lead sulfurized minerals, it includes that common process will divide after raw ore ore grinding, copper roughing all the way through two
Secondary copper is selected to obtain copper concentrate, and another way is scanned through secondary copper, secondary lead roughing divides one to obtain lead concentrate through secondary lead is selected again, separately
One is scanned to obtain tailing through secondary lead, it is characterised in that it further includes preparing galena inhibitor ZJ201, is first pressed down using ZJ201
Then galena processed floatingly selects galena with diethyldithiocarbamate, be not necessarily to first pass through any activation by the galena that ZJ201 inhibits
It can carry out flotation.
2. the method as described in claim 1, it is characterized in that the galena inhibitor ZJ201 is using high-molecular compound
It 5~10 parts, 0.5~2 part of phosphate, 0.8~4 part of sodium sulfite, 0.1~0.5 part of catalyst, is reacted under the conditions of 50~80 DEG C
1~6 hour obtained liquid.
3. method according to claim 2, it is characterized in that the high-molecular compound be carboxymethyl cellulose, guar gum,
Any one of starch.
4. method according to claim 2, it is characterized in that the phosphate is sodium phosphate, sodium dihydrogen phosphate, phosphoric acid hydrogen two
Any one of sodium.
5. method according to claim 2, it is characterized in that the catalyst is using in polyethylene glycol, polyvinyl alcohol, urea
It is any or combination.
6. the method as described in claim 1, it is characterized in that Conventional process steps and specific process conditions are as follows:
(1) ore grinding, it is that -0.074mm accounts for 68%~74% that copper-lead sulphide ore, which is milled to fineness,；
(2) pulp density is adjusted to 25%~30% by copper roughing, and galena inhibitor ZJ201 first is added by 150~400g/t
5~10min is stirred, the collector of copper sulfides Z200 of 15~40g/t is added, through copper roughing, obtains copper rougher concentration and copper rougher tailings；
(3.1) copper is selected, and by copper rougher concentration through selected twice, galena suppression is added by 60~100g/t, 30~50g/t respectively
Preparation ZJ201 is added potassium bichromate by 100g/t, 50g/t, obtains copper cleaner tailings and copper concentrate product；
(3.2) copper is scanned, and copper rougher tailings is scanned twice, presses 80~200g/t, 40~100g/t first addition side's lead respectively
Mine inhibitor ZJ201, then collector of copper sulfides Z200 is added by 8~20g/t, 4~10g/t, it obtains lead roughing mine and copper scans tailing；
Conduct side's lead is added by 15~30g/t, 8~15g/t respectively by lead roughing mine through lead roughing twice in (3.2.1) lead roughing
The diethyldithiocarbamate of mine collecting agent, then press 8~16g/t, 4~8g/t and No. 2 oil of foaming agent are added, obtain lead rougher concentration and lead roughing tail
Mine；
(3.2.2) lead is selected, and lead rougher concentration scans tailing and lead cleaner tailings through selected twice lead, selected to be not required to plus any
Medicament；
(3.2.11) lead is scanned, and is added to lead rougher tailings by 4~8g/t and is swept as the diethyldithiocarbamate progress lead of galena collecting agent
Choosing, obtains that lead scans chats and lead scans tailing, and lead scans tailing and enters Tailings Dam.
7. method as claimed in claim 6, it is characterized in that described copper cleaner tailings return step (3.1) copper is selected selects again.
8. method as claimed in claim 6, it is characterized in that the copper scan tailing return previous step select again.
9. method as claimed in claim 6, it is characterized in that described lead cleaner tailings return step (3.2.2) lead is selected again
Choosing.
10. method as claimed in claim 6, it is characterized in that the lead scans chats and lead cleaner tailings returns to upper one respectively
Step is selected again.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111632756A (en) * | 2020-06-11 | 2020-09-08 | 中国恩菲工程技术有限公司 | Beneficiation method of associated copper-lead-zinc-pyrite |
| CN112774869A (en) * | 2020-12-25 | 2021-05-11 | 厦门紫金矿冶技术有限公司 | Pyrite inhibitor, preparation thereof and application thereof in copper-lead-zinc multi-metal sulfide ores |
| CN113245067A (en) * | 2021-06-23 | 2021-08-13 | 北京矿冶研究总院 | Guar gum base compound and preparation method thereof, zinc-sulfur separation inhibitor and zinc-sulfur flotation separation method, flocculant and application thereof |
| CN113522516A (en) * | 2021-07-12 | 2021-10-22 | 中南大学 | Preparation method of high-purity natural pyrite |
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