CN107029897A - Sodium hydroxide separates the method for floating of Copper-lead mixed concentrate - Google Patents
Sodium hydroxide separates the method for floating of Copper-lead mixed concentrate Download PDFInfo
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- CN107029897A CN107029897A CN201710260712.0A CN201710260712A CN107029897A CN 107029897 A CN107029897 A CN 107029897A CN 201710260712 A CN201710260712 A CN 201710260712A CN 107029897 A CN107029897 A CN 107029897A
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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
- B03D1/08—Subsequent treatment of concentrated product
- B03D1/082—Subsequent treatment of concentrated product of the froth product, e.g. washing
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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
- B03D1/002—Inorganic compounds
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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
- B03D1/004—Organic compounds
- B03D1/012—Organic compounds containing sulfur
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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
- B03D1/08—Subsequent treatment of concentrated product
- B03D1/087—Subsequent treatment of concentrated product of the sediment, e.g. regrinding
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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
- B03D2201/02—Collectors
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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
- B03D2203/04—Non-sulfide ores
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- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses the method for floating that a kind of sodium hydroxide separates Copper-lead mixed concentrate, lead minerals inhibitor is used as using sodium hydroxide and zinc sulfate, ethyl ammonia sulfate is used as copper mineral collecting agent, by Copper-lead mixed concentrate after separation roughing, mine tailing is scanned by multistage copper and obtains lead concentrate, and copper is selected obtains copper concentrate by multistage for concentrate, realizes efficiently separating for Copper-lead mixed concentrate, obtained copper concentrate and the lead concentrate rate of recovery is high, mutually containing low.The method of the present invention is dehydrated without reagent removal, and bulk concentrate is directly entered detached job, and flowage structure is simple, and medicament kind is few, consumption is low, environmental friendly, do not pollute.
Description
Technical field
The present invention relates to metallic ore technical field of beneficiation, more particularly to a kind of sodium hydroxide separation Copper-lead mixed concentrate
Flotation new method.
Background technology
There is the polymetallic deposit of the mineral products such as copper, lead, troilite for symbiosis, it is poor thin miscellaneous to there is mineral deposit, selects smelting difficulty of processing
Greatly, recovery rate in ore-dressing is low, the problems such as concentrate is of poor quality.Such ore is difficult to effectively using traditional regime of agent and technological process
Reclaim copper-lead metal.In flotation flowsheet, floated because the floatability of chalcopyrite and galena is close, and easily, therefore by copper, lead one
Same emersion, after showing that Copper-lead mixed concentrate is selected, then carries out Flotation Separation of Cu-Pb.
Traditional Cu-Pb separation main method is with cyanide process " floating lead presses down " and potassium dichromate method " suppression lead floats copper ".Weight chromium
Hydrochlorate method：Bichromate is effective inhibitor of galena, when Chang Tong, the sorting of lead bulk concentrate, for suppressing galena.
Na2Cr2O7(K) mechanism of action of galena is suppressed, mainly due to Na2Cr2O7(K) it is changed into Na in alkalescent ore pulp2CrO4
(K), then with the galena surface action being oxidized, generation hydrophily plumbous chromate, the hydrophily of increase mineral so that side
Lead ore is suppressed.If copper mineral is chalcopyrite, it can be sorted well；If copper mineral be secondary copper sulfide or
Person exist more secondary copper ions, then these copper ions can be adsorbed on galena surface so that galena be difficult to by
Suppress to bichromate, party's rule separating effect can be very poor.Cyanide process：When Copper-lead mixed concentrate is sorted, it is usually used in suppression
Copper mineral processed.The technique and technical method of other separation Copper-lead mixed concentrates, such as sodium sulfite+waterglass+CMC methods, sulfurous acid
Sodium+sulfuric acid+sodium humate method, sulfurous acid+starch method, sulfurous acid-warming up pulp method, sodium thiosulfate+ferrous sulfate method, polyhydroxy
Base thiophosphate method etc..Cyanide is mainly the xanthates film that dissolving surface is formed to the inhibitory action of copper mineral, makes copper
Mineral surfaces are hydrophilic and are suppressed.Due to there is excessive medicament in Copper-lead mixed concentrate, before their separating flotations,
Advance reagent removal is generally required, the collecting agent of mineral surfaces, and the superfluous medicament in ore pulp is removed so that the difficulty of Cu-Pb separation
Increase, flow is complicated.
Nonetheless, no matter using dichromate titration " suppression lead floats copper " or cyanide process " suppression copper floats lead ", obtained
Copper, lead concentrate are often mutually containing serious.Moreover, above two separating technology all has more serious problem of environmental pollution, in note
The today's society of weight environmental protection, traditional separating technology can not meet the requirement in epoch.Other method inferior separating effects, production
Cost is too high, unrealistic.So exploitation good separating effect, environmental friendly Copper-lead mixed concentrate separation method, with important
Realistic meaning.
The content of the invention
It is an object of the invention to provide a kind of method for floating separated for Copper-lead mixed concentrate, not only technique is simple, ring
Protect, and good separating effect, so as to get copper concentrate and the lead concentrate rate of recovery it is high, mutually containing low.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of sodium hydroxide separates the method for floating of Copper-lead mixed concentrate, comprises the following steps：
A) roughing is separated：Copper-lead mixed concentrate pulp is weighed, adds water and pulp density is adjusted to 15~25%, conjunction is re-introduced into
In the flotation cell of suitable volume, the sodium hydroxide solution of 8~12% concentration and the sulphur of 8~12% concentration are added simultaneously in flotation cell
Sour zinc solution, is stirred 2~5 minutes, then adds ethyl ammonia sulfate, and stirring carries out Cu-Pb separation roughing operation after 0.5~2 minute,
The pulp：Sodium hydroxide solution：Solution of zinc sulfate：The ratio of ethyl ammonia sulfate is 100 grams：18~24 milliliters：3~8 milliliters：
0.05~0.2 gram；
B) copper scans one：Add the sodium hydroxide solution and 8 of 8~12% concentration simultaneously in the mine tailing of separation roughing operation
The solution of zinc sulfate of~12% concentration, is stirred 2~5 minutes, then adds ethyl ammonia sulfate, and stirring carries out copper after 0.5~2 minute and swept
Select and ore deposit is done described in sodium hydroxide solution in an operation, this step, the addition of solution of zinc sulfate and ethyl ammonia sulfate and step a)
The ratio of powder is pulp：Sodium hydroxide solution：Solution of zinc sulfate：Ethyl ammonia sulfate=100 gram：9~12 milliliters：1.5~4 millis
Rise：0.05~0.2 gram；
C) copper scans two：The sodium hydroxide solution of 8~12% concentration, stirring 2 are added in the mine tailing that copper scans an operation
~5 minutes, ethyl ammonia sulfate is then added, stirring carries out copper after 0.5~2 minute and scans two operations, and copper scans the mine tailing of two operations
The ratio of pulp is described in the addition and step a) of sodium hydroxide solution and ethyl ammonia sulfate in as lead concentrate, this step
Pulp：Sodium hydroxide solution：Ethyl ammonia sulfate=100 gram：4.5~6 milliliters：0.05~0.2 gram；
D) copper selected one：Separation roughing operation concentrate in addition 8~12% concentration sodium hydroxide solution and 8~
The solution of zinc sulfate of 12% concentration, is stirred 2~5 minutes, then adds ethyl ammonia sulfate, it is selected that stirring carries out copper after 0.5~2 minute
Pulp described in sodium hydroxide solution, the addition of solution of zinc sulfate and ethyl ammonia sulfate and step a) in one operation, this step
Ratio be pulp：Sodium hydroxide solution：Solution of zinc sulfate：Ethyl ammonia sulfate=100 gram：9~12 milliliters：1.5~4 milliliters：
0.05~0.2 gram；
E) copper selected two：The sodium hydroxide solution of 8~12% concentration, stirring 2 are added in the concentrate of the selected operation of copper
~5 minutes, ethyl ammonia sulfate is then added, stirring carries out sodium hydroxide in selected two operation of copper, this step after 0.5~2 minute molten
The ratio of pulp described in the addition and step a) of liquid and ethyl ammonia sulfate is pulp：Sodium hydroxide solution：Ethyl ammonia sulfate
=100 grams：4.5~6 milliliters：0.05~0.2 gram；
F) copper selected three：Ethyl ammonia sulfate is added in the concentrate of selected two operation of copper, stirring carries out copper after 0.5~2 minute
Selected three operation, the concentrate of selected three operation of copper is the addition of ethyl ammonia sulfate in copper concentrate, this step and institute in step a)
The ratio for stating pulp is pulp：Ethyl ammonia sulfate=100 gram：0.05~0.2 gram；
G) copper scans one, copper and scans two, copper selected one, copper selected two, the chats of selected three flotation operation of copper returns successively
Last flotation operation.
Optionally, the mass fraction of the Copper-lead mixed concentrate cupric is more than 10%, and leaded mass fraction is more than 30%.
Optionally, in step a), add water and the pulp density is adjusted to 18~20%.
Optionally, in step a), the pulp：Sodium hydroxide solution：Solution of zinc sulfate：The ratio of ethyl ammonia sulfate is
100 grams：20~22 milliliters：5~6 milliliters：0.1 gram.
Optionally, in step b), the pulp：Sodium hydroxide solution：Solution of zinc sulfate：The ratio of ethyl ammonia sulfate is
100 grams：10~11 milliliters：2.5~3 milliliters：0.1 gram.
Optionally, in step c), the pulp：Sodium hydroxide solution：The ratio of ethyl ammonia sulfate is 100 grams：5~5.5
Milliliter：0.1 gram.
Optionally, in step d), the pulp：Sodium hydroxide solution：Solution of zinc sulfate：The ratio of ethyl ammonia sulfate is
100 grams：10~11 milliliters：2.5~3 milliliters：0.1 gram.
Optionally, in step e), the pulp：Sodium hydroxide solution：The ratio of ethyl ammonia sulfate is 100 grams：5~5.5
Milliliter：0.1 gram.
Optionally, in step f), the pulp：The ratio of ethyl ammonia sulfate is 100 grams：0.1 gram.
The concentration of material of the present invention, refers to the mass percent shared by the material, such as pulp density is adjusted to 15~
25%, refer to that the quality of pulp accounts for pulp and the hydrogen of 15~25%, 8~12% concentration of water gross mass (i.e. ore pulp quality)
Sodium hydroxide solution, refers to that the quality of sodium hydroxide accounts for the 8~12% of sodium hydroxide solution gross mass, other the like.
Compared to prior art, the invention has the advantages that：
The separation method of the present invention is particularly suitable for from Copper-lead mixed concentrate by FLOTATION SEPARATION copper, lead metal, lead minerals
Inhibitor is sodium hydroxide and zinc sulfate, and copper mineral collecting agent is ethyl ammonia sulfate.Compared with prior art, using sodium-hydroxide method
" suppression lead floats copper ", realizes efficiently separating for Copper-lead mixed concentrate, such as Copper-lead mixed concentrate cupric>10%, it is leaded>30%, point
From obtained Cu Concentrate Grade>20%, copper concentrate operation recovery>80%；Obtained lead concentrate grade>45%, lead concentrate is made
The industry rate of recovery>90%.This method is dehydrated without reagent removal, and bulk concentrate is directly entered detached job, and flowage structure is simple, medicament kind
Class is few, consumption is low, environmental friendly, do not pollute, and good separating effect, so as to get copper concentrate and the lead concentrate rate of recovery it is high,
Mutually containing low.
The present invention is described in further detail below in conjunction with drawings and examples；But a kind of sodium hydroxide point of the present invention
Method for floating from Copper-lead mixed concentrate is not limited to embodiment.
Brief description of the drawings
Fig. 1 is the process chart of the present invention, and dotted line represents the return path of each flotation operation chats in figure, respectively identifies table
Show：
1. the copper concentrate of 5. lead concentrate of Copper-lead mixed concentrate 2. sodium hydroxide, 3. zinc sulfate, 4. ethyl ammonia sulfate 6..
Embodiment
Fig. 1 is the method for floating flow chart that a kind of sodium hydroxide of the invention separates Copper-lead mixed concentrate.The present invention's is specific
Method is embodied by Fig. 1 and its explanation.Specifically include following steps as shown in Figure 1：
A) roughing is separated：Copper-lead mixed concentrate pulp (1) is weighed, adds water and pulp density is adjusted to 15~25% (preferably
For 18~20%), it is re-introduced into the flotation cell of appropriate volume, adds the sodium hydroxide of 8~12% concentration simultaneously in flotation cell
The solution of zinc sulfate (3) of solution (2) and 8~12% concentration, is stirred 2~5 minutes, then adds ethyl ammonia sulfate (4), stirring 0.5
Cu-Pb separation roughing operation, the pulp are carried out after~2 minutes：Sodium hydroxide solution：Solution of zinc sulfate：The ratio of ethyl ammonia sulfate
Example is 100 grams：18~24 milliliters：3~8 milliliters：0.05~0.2 gram, preferably 100 grams：20~22 milliliters：5~6 milliliters：0.1
Gram；
B) copper scans one：Add the sodium hydroxide solution (2) of 8~12% concentration simultaneously in the mine tailing of separation roughing operation
With the solution of zinc sulfate (3) of 8~12% concentration, stir 2~5 minutes, then add ethyl ammonia sulfate (4), stir 0.5~2 minute
Copper is carried out afterwards scans sodium hydroxide solution in an operation, this step, the addition of solution of zinc sulfate and ethyl ammonia sulfate and step a)
Described in pulp ratio be pulp：Sodium hydroxide solution：Solution of zinc sulfate：Ethyl ammonia sulfate=100 gram：9~12 milliliters：
1.5~4 milliliters：0.05~0.2 gram, preferably 100 grams：10~11 milliliters：2.5~3 milliliters：0.1 gram；
C) copper scans two：The sodium hydroxide solution (2) of 8~12% concentration is added in the mine tailing that copper scans an operation, is stirred
Mix 2~5 minutes, then add ethyl ammonia sulfate (4), stirring carries out copper after 0.5~2 minute and scans two operations, and copper scans two operations
Mine tailing be that ore deposit is done described in addition and the step a) of sodium hydroxide solution and ethyl ammonia sulfate in lead concentrate (5), this step
The ratio of powder is pulp：Sodium hydroxide solution：Ethyl ammonia sulfate=100 gram：4.5~6 milliliters：0.05~0.2 gram, it is preferably
100 grams：5~5.5 milliliters：0.1 gram；
D) copper selected one：The sodium hydroxide solution (2) and 8 of 8~12% concentration is added in the concentrate of separation roughing operation
The solution of zinc sulfate (3) of~12% concentration, stir 2~5 minutes, then add ethyl ammonia sulfate (4), stirring 0.5~2 minute it is laggard
Institute in sodium hydroxide solution, the addition of solution of zinc sulfate and ethyl ammonia sulfate and step a) in the selected operation of row copper, this step
The ratio for stating pulp is pulp：Sodium hydroxide solution：Solution of zinc sulfate：Ethyl ammonia sulfate=100 gram：9~12 milliliters：1.5
~4 milliliters：0.05~0.2 gram, preferably 100 grams：10~11 milliliters：2.5~3 milliliters：0.1 gram；
E) copper selected two：The sodium hydroxide solution (2) of 8~12% concentration is added in the concentrate of the selected operation of copper, is stirred
Mix 2~5 minutes, then add ethyl ammonia sulfate (4), stirring carries out hydrogen-oxygen in selected two operation of copper, this step after 0.5~2 minute
The ratio for changing pulp described in the addition and step a) of sodium solution and ethyl ammonia sulfate is pulp：Sodium hydroxide solution：Second
Thiourethane=100 gram：4.5~6 milliliters：0.05~0.2 gram, preferably 100 grams：5~5.5 milliliters：0.1 gram；
F) copper selected three：Ethyl ammonia sulfate (4) is added in the concentrate of selected two operation of copper, stirring is carried out after 0.5~2 minute
Selected three operation of copper, the concentrate of selected three operation of copper is the addition and step a) of ethyl ammonia sulfate in copper concentrate (6), this step
Described in pulp ratio be pulp：Ethyl ammonia sulfate=100 gram：0.05~0.2 gram, preferably 100 grams：0.1 gram；
G) copper scans one, copper and scans two, copper selected one, copper selected two, the chats of selected three flotation operation of copper returns successively
Last flotation operation.
Three groups of parallel tests, the Copper-lead mixed concentrate cupric that embodiment 1 is used are carried out using Copper-lead mixed concentrate
11.03%, leaded 30.88%；The Copper-lead mixed concentrate cupric 10.67% that embodiment 2 is used, leaded 30.35%；Embodiment 3
The Copper-lead mixed concentrate cupric 10.49% used, leaded 30.84%.
Embodiment 1：According to technological process of the invention shown in Fig. 1,100 grams of Copper-lead mixed concentrate pulp is weighed first,
Then add water and be adjusted to pulp density to be added to after 18% in the flotation cell of 500 milliliters of volumes, added simultaneously in flotation cell
5 milliliters of 20 milliliters of the sodium hydroxide solution of 10% concentration and the solution of zinc sulfate of 10% concentration, stir 3 minutes, then add second
0.1 gram of thiourethane, stirring carries out Cu-Pb separation roughing operation after 1 minute；Added simultaneously in the mine tailing of separation roughing operation
2.5 milliliters of 10 milliliters of the sodium hydroxide solution of 10% concentration and the solution of zinc sulfate of 10% concentration, stir 3 minutes, then add
0.1 gram of ethyl ammonia sulfate, stirring carries out copper after 1 minute and scans an operation；10% concentration is added in the mine tailing that copper scans an operation
5 milliliters of sodium hydroxide solution, stir 3 minutes, then add 0.1 gram of ethyl ammonia sulfate, stirring 1 minute after carry out copper scan two works
Industry, copper scans the mine tailing as lead concentrate of two operations；The sodium hydroxide of 10% concentration is added in the concentrate of separation roughing operation
2.5 milliliters of 10 milliliters of solution and the solution of zinc sulfate of 10% concentration, are stirred 3 minutes, then add 0.1 gram of ethyl ammonia sulfate, stirring 1
The selected operation of copper is carried out after minute；5 milliliters of the sodium hydroxide solution of 10% concentration is added in the concentrate of the selected operation of copper,
Stirring 3 minutes, then adds 0.1 gram of ethyl ammonia sulfate, and stirring carries out selected two operation of copper after 1 minute；In selected two operation of copper
0.1 gram of ethyl ammonia sulfate is added in concentrate, stirring carries out selected three operation of copper after 1 minute, and the concentrate of selected three operation of copper is copper
Concentrate；Copper scans one, copper and scans two, copper selected one, copper selected two, the chats of selected three flotation operation of copper returns to the last time successively
Flotation operation.
Embodiment 2, embodiment 3：According to technological process of the invention shown in Fig. 1, test procedure, dosing and addition side
Formula is identical with embodiment 1.The embodiment of the present invention 1, embodiment 2, the technic index of embodiment 3 are shown in Table 1.
The embodiment technic index of table 1
Above-described embodiment is only used for further illustrating that a kind of sodium hydroxide of the present invention separates the flotation of Copper-lead mixed concentrate
Method, but the invention is not limited in embodiment, it is any that every technical spirit according to the present invention is made to above example
Simple modification, equivalent variations and modification, each fall within the protection domain of technical solution of the present invention.
Claims (9)
1. a kind of sodium hydroxide separates the method for floating of Copper-lead mixed concentrate, it is characterised in that comprise the following steps：
A) roughing is separated：Copper-lead mixed concentrate pulp is weighed, adds water and pulp density is adjusted to 15~25%, suitable appearance is re-introduced into
In long-pending flotation cell, the sodium hydroxide solution of 8~12% concentration and the zinc sulfate of 8~12% concentration are added simultaneously in flotation cell
Solution, is stirred 2~5 minutes, then adds ethyl ammonia sulfate, stirring carries out Cu-Pb separation roughing operation after 0.5~2 minute, described
Pulp：Sodium hydroxide solution：Solution of zinc sulfate：The ratio of ethyl ammonia sulfate is 100 grams：18~24 milliliters：3~8 milliliters：0.05
~0.2 gram；
B) copper scans one：Separation roughing operation mine tailing in simultaneously add 8~12% concentration sodium hydroxide solution and 8~
The solution of zinc sulfate of 12% concentration, is stirred 2~5 minutes, then adds ethyl ammonia sulfate, and stirring carries out copper after 0.5~2 minute and scanned
Pulp described in sodium hydroxide solution, the addition of solution of zinc sulfate and ethyl ammonia sulfate and step a) in one operation, this step
Ratio be pulp：Sodium hydroxide solution：Solution of zinc sulfate：Ethyl ammonia sulfate=100 gram：9~12 milliliters：1.5~4 milliliters：
0.05~0.2 gram；
C) copper scans two：The sodium hydroxide solution of 8~12% concentration is added in the mine tailing that copper scans an operation, 2~5 points are stirred
Clock, then adds ethyl ammonia sulfate, and stirring carries out copper after 0.5~2 minute and scans two operations, and copper scans the mine tailing as lead of two operations
The ratio of pulp described in the addition and step a) of sodium hydroxide solution and ethyl ammonia sulfate is dry ore deposit in concentrate, this step
Powder：Sodium hydroxide solution：Ethyl ammonia sulfate=100 gram：4.5~6 milliliters：0.05~0.2 gram；
D) copper selected one：The sodium hydroxide solution of 8~12% concentration of addition and 8~12% dense in the concentrate of separation roughing operation
The solution of zinc sulfate of degree, is stirred 2~5 minutes, then adds ethyl ammonia sulfate, and stirring carries out copper selected one and made after 0.5~2 minute
The ratio of pulp described in sodium hydroxide solution, the addition of solution of zinc sulfate and ethyl ammonia sulfate and step a) in industry, this step
Example is pulp：Sodium hydroxide solution：Solution of zinc sulfate：Ethyl ammonia sulfate=100 gram：9~12 milliliters：1.5~4 milliliters：0.05
~0.2 gram；
E) copper selected two：The sodium hydroxide solution of 8~12% concentration is added in the concentrate of the selected operation of copper, 2~5 points are stirred
Clock, then adds ethyl ammonia sulfate, and stirring carries out sodium hydroxide solution and second in selected two operation of copper, this step after 0.5~2 minute
The ratio of pulp described in the addition and step a) of thiourethane is pulp：Sodium hydroxide solution：Ethyl ammonia sulfate=100
Gram：4.5~6 milliliters：0.05~0.2 gram；
F) copper selected three：Ethyl ammonia sulfate is added in the concentrate of selected two operation of copper, it is selected that stirring carries out copper after 0.5~2 minute
Three operations, the concentrate of selected three operation of copper is to be done described in the addition and step a) of ethyl ammonia sulfate in copper concentrate, this step
The ratio of miberal powder is pulp：Ethyl ammonia sulfate=100 gram：0.05~0.2 gram；
G) copper scans one, copper and scans two, copper selected one, copper selected two, the chats of selected three flotation operation of copper returns to one successively
Secondary flotation operation.
2. sodium hydroxide according to claim 1 separates the method for floating of Copper-lead mixed concentrate, it is characterised in that：The copper
The mass fraction of lead bulk concentrate cupric is more than 10%, and leaded mass fraction is more than 30%.
3. sodium hydroxide according to claim 1 separates the method for floating of Copper-lead mixed concentrate, it is characterised in that：Step a)
In, add water and the pulp density is adjusted to 18~20%.
4. sodium hydroxide according to claim 1 separates the method for floating of Copper-lead mixed concentrate, it is characterised in that：Step a)
In, the pulp：Sodium hydroxide solution：Solution of zinc sulfate：The ratio of ethyl ammonia sulfate is 100 grams：20~22 milliliters：5~6 millis
Rise：0.1 gram.
5. sodium hydroxide according to claim 1 separates the method for floating of Copper-lead mixed concentrate, it is characterised in that：Step b)
In, the pulp：Sodium hydroxide solution：Solution of zinc sulfate：The ratio of ethyl ammonia sulfate is 100 grams：10~11 milliliters：2.5~3
Milliliter：0.1 gram.
6. sodium hydroxide according to claim 1 separates the method for floating of Copper-lead mixed concentrate, it is characterised in that：Step c)
In, the pulp：Sodium hydroxide solution：The ratio of ethyl ammonia sulfate is 100 grams：5~5.5 milliliters：0.1 gram.
7. sodium hydroxide according to claim 1 separates the method for floating of Copper-lead mixed concentrate, it is characterised in that：Step d)
In, the pulp：Sodium hydroxide solution：Solution of zinc sulfate：The ratio of ethyl ammonia sulfate is 100 grams：10~11 milliliters：2.5~3
Milliliter：0.1 gram.
8. sodium hydroxide according to claim 1 separates the method for floating of Copper-lead mixed concentrate, it is characterised in that：Step e)
In, the pulp：Sodium hydroxide solution：The ratio of ethyl ammonia sulfate is 100 grams：5~5.5 milliliters：0.1 gram.
9. sodium hydroxide according to claim 1 separates the method for floating of Copper-lead mixed concentrate, it is characterised in that：Step f)
In, the pulp：The ratio of ethyl ammonia sulfate is 100 grams：0.1 gram.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109731694A (en) * | 2019-01-28 | 2019-05-10 | 山西紫金矿业有限公司 | A kind of bulk concentrate floatation process |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51133102A (en) * | 1975-05-16 | 1976-11-18 | Dowa Mining Co | Flotation method for complicated sulfide mineral |
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