CN107309074B - A kind of technique of substep production high-grade molybdenum concentrate and common molybdenum concentrate - Google Patents
A kind of technique of substep production high-grade molybdenum concentrate and common molybdenum concentrate Download PDFInfo
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- CN107309074B CN107309074B CN201710623380.8A CN201710623380A CN107309074B CN 107309074 B CN107309074 B CN 107309074B CN 201710623380 A CN201710623380 A CN 201710623380A CN 107309074 B CN107309074 B CN 107309074B
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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
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
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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
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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
- B03D1/025—Froth-flotation processes adapted for the flotation of fines
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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
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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
- B03D2203/00—Specified materials treated by the flotation agents; specified applications
- B03D2203/02—Ores
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Abstract
The invention discloses a kind of techniques of substep production high-grade molybdenum concentrate and common molybdenum concentrate, comprising the following steps: one, add molybdenum raw ore water to grind to obtain molybdenum ore slurry；Two, molybdenum ore slurry obtains molybdenum rough concentrate and the thick tailing of molybdenum through roughing, and molybdenum rough concentrate or molybdenum ore slurry obtain fast-flotation molybdenum rough concentrate and fast-flotation molybdic tailing through fast-flotation；Three, fast-flotation molybdenum rough concentrate regrinded through two sections, five times it is selected, obtain molybdenum grade be greater than 57% high-grade molybdenum concentrate；Four, the fast-flotation molybdic tailing starched by molybdenum ore obtains molybdenum rough concentrate and the thick tailing of molybdenum through roughing；Five, the molybdenum rough concentrate elder generation preconcentration in fast-flotation molybdic tailing or step 4 obtained by molybdenum rough concentrate, then regrind through two sections, eight selected and primary scourings obtains molybdenum essence tailing and common molybdenum concentrate that molybdenum grade is 52%~55%.The present invention utilizes differentiation flotation technology, obtains the molybdenum concentrate of different grades, shortens concentration times, improves the overall recovery of molybdenum concentrate.
Description
Technical field
The invention belongs to molybdenum concentrate production technical fields, and in particular to a kind of substep production high-grade molybdenum concentrate and common molybdenum
The technique of concentrate.
Background technique
Molybdenite is that most wide molybdenum ore is distributed in molybdenum-bearing mineral, has natural hydrophobicity, floatability is preferable, is molybdenum concentrate
Main production raw material.But molybdenite raw ore molybdenum grade is lower, it is necessary to can use production by ore dressing processing rear.In mineralizing process
Generation ore body fracture, fault movement the effects of, cause molybdenite crystalline form make a variation, make its floatability decline；And part molybdenite
Film like structures, cross and crush and argillization etc., also seriously affect the floatability of molybdenite.Dotted molybdenite is wrapped in arteries and veins simultaneously
It in stone ore object, is not easy to dissociate, the recovery difficult of molybdenite is caused to increase, the molybdenum grade of molybdenum concentrate gradually decreases.
Currently, the high-grade molybdenum concentrate for focusing on 57% or more molybdenum grade of production of molybdenum ore production, by improving essence
It selects technique, increase concentration times, or reduce the impurity metal content in molybdenum raw ore to improve the rate of recovery of high-grade molybdenum concentrate,
In the prevalence of cleaning technological flowasheet, long, chats iterative cycles and smart tail run the problems such as high to production process, not only increase production cost,
Being largely lost for molybdenum concentrate is also caused, the rate of recovery of molybdenum concentrate is relatively low in product.Notification number is that the invention of CN103386375B is special
Benefit discloses a kind of screening technique of molybdenum concentrate, and the molybdenum raw ore that molybdenum grade is 0.2% is successively crushed, ore grinding, classification, is floated
Choosing, selected and dehydration, obtain the molybdenum concentrate that molybdenum grade is 45%, the rate of recovery is 85%；But this method can only produce common molybdenum essence
Mine cannot produce the high-grade molybdenum concentrate of 57% or more molybdenum grade.
In recent years, international market molybdenum price drops have seriously affected the survival ability in mine, reduce beneficiation cost, improve
Mineral processing index is the key that mine survival and development.Therefore, research molybdenum ore produces new technological process, invents a kind of energy-efficient, flexible
Simple and direct production technology, improves the overall recovery of molybdenum, and it is necessary to obtain high-grade molybdenum concentrate.
Summary of the invention
Technical problem to be solved by the present invention lies in view of the above shortcomings of the prior art, providing, a kind of substep production is high
The technique of grade molybdenum concentrate and common molybdenum concentrate.The floatability difference of the technology utilization molybdenum raw ore, passes through differentiation flotation technology
With collecting agent synergistic action technique, stepped-flotation separation is realized, respectively obtain the high-grade of common molybdenum concentrate and molybdenum grade greater than 57%
Molybdenum concentrate；The technique is effectively shortened cleaning technological flowasheet, reduces concentration times, reduces the molybdenum loss in tailing, improves molybdenum essence
The overall recovery of mine.
In order to solve the above technical problems, the present invention provides a kind of substep production high-grade molybdenum concentrate and common molybdenum concentrates
Technique, which is characterized in that method includes the following steps:
Step 1: adding water to grind the molybdenum raw ore that molybdenum grade is 0.080%~0.115%, obtaining mass concentration is 30%
~35% molybdenum ore slurry, wherein the grinding fineness of molybdenum raw ore is that -0.074mm grade accounts for 50wt%~65wt%；
Roughing is carried out Step 2: molybdenum ore obtained in step 1 is starched, molybdenum rough concentrate and the thick tailing of molybdenum are obtained, by what is obtained
Molybdenum rough concentrate carries out fast-flotation, obtains fast-flotation molybdenum rough concentrate and fast-flotation molybdic tailing；Or it will be obtained in step 1
Molybdenum ore slurry directly progress fast-flotation, obtain fast-flotation molybdenum rough concentrate and fast-flotation molybdic tailing；
It is regrinded Step 3: fast-flotation molybdenum rough concentrate obtained in step 2 is carried out one section, obtains one section and regrind product,
Wherein -0.038mm grade accounts for 65wt%~80wt%；Then product is regrinded to one section successively carry out primary cleaning and secondary fine
Choosing, then carry out two sections and regrind, it obtains two sections and regrinds product, wherein -0.038mm grade accounts for 65wt%~80wt%；Finally to two
Section regrind product successively carry out triple cleaning, four times it is selected and five times selected, obtain high-grade molybdenum essence of the molybdenum grade greater than 57%
Mine；The primary cleaning, triple cleaning and five selected preceding addition inhibitor；
Step 4: carrying out roughing for the fast-flotation molybdic tailing that direct fast-flotation obtains is starched by molybdenum ore in step 2, obtain
To molybdenum rough concentrate and the thick tailing of molybdenum；
Step 5: obtaining the fast-flotation molybdic tailing obtained in step 2 by molybdenum rough concentrate fast-flotation or in step 4
The molybdenum rough concentrate arrived carries out preconcentration, then carries out one section and regrind, and obtains one section and regrinds product, wherein -0.038mm grade accounts for
80wt%~90wt%；Then product is regrinded to one section and carry out primary cleaning, obtain primary cleaning molybdenum concentrate and molybdenum essence tailing, it is right
Primary cleaning molybdenum concentrate successively carries out recleaning and triple cleaning, then carries out two sections and regrind, and obtains two sections and regrinds product,
In -0.038mm grade account for 80wt%~90wt%；Again to two sections regrind product successively carry out four times it is selected, five times it is selected and
Six times selected, obtains six selected molybdenum concentrates, successively carries out that seven times selected and eight times selected after one section is cleaned, obtains molybdenum grade
For 52%~55% common molybdenum concentrate；The primary cleaning, triple cleaning, four times it is selected, six times it is selected and seven times it is selected before
Inhibitor is added.
The technique of above-mentioned a kind of substep production high-grade molybdenum concentrate and common molybdenum concentrate, which is characterized in that in step 2
Main catching agent, supplementary catching agent and foaming agent are added when the roughing；The main catching agent is No. 0 diesel oil, the auxiliary collecting
Agent is butyl ammonium aerofloat, and the foaming agent is terpenic oil；The additional amount of No. 0 diesel oil, butyl ammonium aerofloat and terpenic oil presses molybdenum raw ore
Quality be calculated as: No. 0 diesel oil 70g/t~110g/t, butyl ammonium aerofloat 2g/t~7g/t, terpenic oil 40g/t~70g/t；It is described thick
The time of choosing is 5min~10min.
The technique of above-mentioned a kind of substep production high-grade molybdenum concentrate and common molybdenum concentrate, which is characterized in that in step 2
The time of the molybdenum rough concentrate fast-flotation is 15s~35s.
The technique of above-mentioned a kind of substep production high-grade molybdenum concentrate and common molybdenum concentrate, which is characterized in that in step 2
The molybdenum ore slurry directly carries out that foaming agent is added when fast-flotation, and the foaming agent is terpenic oil, the additional amount of the terpenic oil
15g/t~30g/t is calculated as by the quality of molybdenum raw ore；The time of the fast-flotation is 20s~35s.
The technique of above-mentioned a kind of substep production high-grade molybdenum concentrate and common molybdenum concentrate, which is characterized in that in step 3
The inhibitor is sodium thioglycolate and P-Nokes, and the additional amount of the sodium thioglycolate and P-Nokes presses the matter of molybdenum raw ore
Meter is 20g/t~30g/t.
The technique of above-mentioned a kind of substep production high-grade molybdenum concentrate and common molybdenum concentrate, which is characterized in that in step 5
The inhibitor is sodium thioglycolate and P-Nokes, and the additional amount of the sodium thioglycolate and P-Nokes presses the matter of molybdenum raw ore
Meter is 40g/t~80g/t.
The technique of above-mentioned a kind of substep production high-grade molybdenum concentrate and common molybdenum concentrate, which is characterized in that in step 4
Main catching agent and supplementary catching agent are added when the roughing, the main catching agent is No. 0 diesel oil, and the supplementary catching agent is fourth ammonium
The additional amount of black powder, No. 0 diesel oil and butyl ammonium aerofloat is calculated as by the quality of molybdenum raw ore: No. 0 diesel oil 80g/t~100g/t, fourth
Ammonium black powder 2g/t~6g/t；The time of the roughing is 6min~9min.
The technique of above-mentioned a kind of substep production high-grade molybdenum concentrate and common molybdenum concentrate, which is characterized in that by step 2
Described in the thick tailing of molybdenum described in the thick tailing of molybdenum and step 4 carry out the choosing of coarse scan twice, respectively obtain molybdenum coarse scan tailing；Institute twice
It states when coarse scan is selected and collecting agent and foaming agent is added, the collecting agent is No. 0 diesel oil, and the foaming agent is terpenic oil, described No. 0
The additional amount of diesel oil and terpenic oil is calculated as by the quality of molybdenum raw ore: No. 0 diesel oil 25g/t~35g/t, terpenic oil 5g/t~10g/t.
The technique of above-mentioned a kind of substep production high-grade molybdenum concentrate and common molybdenum concentrate, which is characterized in that in step 5
The time of one section of scouring is 4min~8min.
The technique of above-mentioned a kind of substep production high-grade molybdenum concentrate and common molybdenum concentrate, which is characterized in that by step 5
Described in molybdenum essence tailing carry out essence twice and scan, obtain molybdenum essence and wind up mine；It is described that collecting agent is added when essence is scanned twice and rises
Infusion, the collecting agent are No. 0 diesel oil, and the foaming agent is terpenic oil, and the additional amount of No. 0 diesel oil and terpenic oil is former by molybdenum
The quality of mine is calculated as: No. 0 diesel oil 5g/t~10g/t, terpenic oil 5g/t~10g/t.
The selected equipment used is flotation device in the present invention.
Preconcentration is not add the selected of any medicament in the present invention, and the equipment used is flotation device.
The thick tailing of molybdenum contains sulfide in obtained coarse scan tailing after the choosing of coarse scan twice, can be used for subsequent selecting sulphur operation；
Molybdenum essence tailing obtained essence after essence twice is scanned, which is wound up, contains copper compound in mine, can be used for subsequent selecting copper operation.
The principle of present invention substep production are as follows: it is high that coarse particle, well-crystallized, degree of dissociation are existed simultaneously in molybdenum raw ore
Easily floating molybdenite and granularity is tiny, crystalline form variation, floats molybdenite with the poor difficulty of other mineral adhesions, hydrophobicity, therefore by molybdenum
The floatation process of raw ore is divided into " easily choosing is fast floating " and " hardly possible choosing is slow floating " two stages；Using differentiation flotation technology, by dissimilarity
The molybdenite substep of matter separates, and the molybdenum concentrate of selected output difference molybdenum grade is then distinguished under conditions of respective suitable.
Compared with the prior art, the present invention has the following advantages:
1, the present invention carries out foil-less diode fast-flotation in " easily choosing the is fast floating " stage, easily floating brightness as far as possible in expansion molybdenum raw ore
The floatability difference of molybdenum ore and difficult floating molybdenite, makes easily float molybdenite and is focused in fast-flotation molybdenum rough concentrate as far as possible, quick to float
Molybdenum rough concentrate is selected to regrind and five selected high-grade molybdenum concentrates for obtaining molybdenum grade and being greater than 57% through two sections again.Differentiation flotation skill
Art makes the cleaning technological flowasheet for producing high-grade molybdenum concentrate of the molybdenum grade greater than 57% from shortening to more than eight times five times, effectively reduces
Concentration times solve the problems, such as to produce middling cycle too long when single concentrate product completely；It has combined difficulty and has selected molybdenite
Recycling, effectively prevent a large amount of collecting agents and condense upon molybdenite surface and microfine difficulty floating molybdenite and impurity to quickly floating
The interference of choosing, it is energy-efficient, it is flexibly convenient.
2, the present invention plays the synergistic effect of medicament in " hardly possible choosing is slow floating " stage addition main catching agent and supplementary catching agent,
Enhance the collecting ability of medicament, it is ensured that the collecting of the molybdenite and intergrowth poor to undersized, crystal form variation iso flotability,
Realize and effectively recycle the purpose of molybdenum ore and sulphur mine under thicker grinding particle size, reduce loss of the molybdenum in tailing, molybdenum concentrate it is total
The rate of recovery is greater than 87%.
3, the present invention contains a large amount of molybdenum ore object intergrowth, copper mineral in the molybdenum rough concentrate that " hardly possible choosing the is slow floating " stage obtains
And gangue, technology is regrinded and cleaned using the stage, makes a large amount of molybdenite intergrowths in rough concentrate that monomer dissociation be done step-by-step,
Avoid influence of the secondary slime of the overground generation of mineral to the selected effect of molybdenum；Galena, pyrite and chalcopyrite etc. are added simultaneously
The inhibitor of the preferable sulfide of floatability, the easily floating sulfide floating of inhibition and gangue mineral are mingled with, it is ensured that molybdenum concentrate
Grade and the rate of recovery.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Detailed description of the invention
Fig. 1 is the process flow chart of 1~embodiment of the embodiment of the present invention 3.
Fig. 2 is the process flow chart of 4~embodiment of the embodiment of the present invention 6.
Specific embodiment
As shown in Figure 1, the first specific embodiment of the invention is described in detail by 1~embodiment of embodiment 3.
Embodiment 1
The technique of the present embodiment the following steps are included:
Step 1: adding water to grind the molybdenum raw ore that molybdenum grade is 0.115%, obtains the molybdenum ore that mass concentration is 30% and starches,
Wherein, the grinding fineness of molybdenum raw ore is that -0.074mm grade accounts for 50wt%；
Step 2: to molybdenum ore obtained in step 1 starch be added No. 0 diesel oil of main catching agent, supplementary catching agent butyl ammonium aerofloat and
Foaming agent terpenic oil roughing 10min obtains the thick tailing of molybdenum and molybdenum grade as 5% molybdenum rough concentrate, and No. 0 diesel oil, fourth ammonium are black
The additional amount of medicine and terpenic oil is calculated as by the quality of molybdenum raw ore: No. 0 diesel oil 110g/t, butyl ammonium aerofloat 7g/t, terpenic oil 70g/t；
Then by molybdenum rough concentrate fast-flotation 35s, fast-flotation molybdic tailing and molybdenum grade are obtained as 25% fast-flotation molybdenum rough concentrate；
It is regrinded Step 3: fast-flotation molybdenum rough concentrate obtained in step 2 is carried out one section, obtains one section and regrind product,
Wherein -0.038mm grade accounts for 65wt%；Then product is regrinded to one section successively carry out primary cleaning and recleaning, it will be secondary
The recleaning molybdenum concentrate obtained after selected carries out two sections and regrinds, and obtains two sections and regrinds product, wherein -0.038mm grade accounts for
80wt%；Finally to two sections regrind product successively carry out triple cleaning, four times it is selected and five times selected, obtaining molybdenum grade is
57.23%, the high-grade molybdenum concentrate that the rate of recovery is 39.98%；The primary cleaning, triple cleaning and five times it is selected before be added
The additional amount of inhibitor sodium thioglycolate and P-Nokes, the sodium thioglycolate and P-Nokes is equal based on the quality of molybdenum raw ore
For 30g/t；
Step 4: fast-flotation molybdic tailing obtained in step 2 is first carried out preconcentration, then carry out one section and regrind, obtains
One section is regrinded product, wherein -0.038mm grade accounts for 90wt%；Then product is regrinded to one section and carry out primary cleaning, obtain primary
Selected molybdenum concentrate and molybdenum essence tailing；Recleaning and triple cleaning are successively carried out to primary cleaning molybdenum concentrate, after triple cleaning
Obtained triple cleaning molybdenum concentrate carries out two sections and regrinds, and obtains two sections and regrinds product, wherein -0.038mm grade accounts for 85wt%；Again
To two sections regrind product successively carry out four times it is selected, five times it is selected and six times selected, six times it is selected after obtained six selected molybdenums
Concentrate successively carries out that seven times selected and eight times selected after one section of scouring 8min, obtains that molybdenum grade is 55%, the rate of recovery is
48.54% common molybdenum concentrate；The primary cleaning, triple cleaning, four times it is selected, six times it is selected and seven times it is selected before be added
The additional amount of inhibitor sodium thioglycolate and P-Nokes, the sodium thioglycolate and P-Nokes is equal based on the quality of molybdenum raw ore
For 80g/t；
Step 5: No. 0 diesel oil of collecting agent and foaming agent terpenic oil progress two is added to the thick tailing of molybdenum obtained in step 2
Secondary coarse scan choosing, obtains coarse scan tailing；The additional amount of No. 0 diesel oil described in when each coarse scan is selected and terpenic oil is based on the quality of molybdenum raw ore
Are as follows: No. 0 diesel oil 35g/t, terpenic oil 10g/t；
Step 6: No. 0 diesel oil of collecting agent and foaming agent terpenic oil progress two is added to molybdenum essence tailing obtained in step 4
Secondary essence is scanned, and is obtained essence and is wound up mine；The additional amount of No. 0 diesel oil described in when each essence is scanned and terpenic oil is based on the quality of molybdenum raw ore
Are as follows: No. 0 diesel oil 10g/t, terpenic oil 10g/t.
The high-grade molybdenum concentrate and molybdenum that molybdenum grade is 57.23%, the rate of recovery is 39.98% have been obtained in the present embodiment step by step
The common molybdenum concentrate that grade is 55%, the rate of recovery is 48.54%, the overall recovery of molybdenum concentrate is 88.52%, with prior art phase
Than improving 3.52%.
Embodiment 2
The technique of the present embodiment the following steps are included:
Step 1: adding water to grind the molybdenum raw ore that molybdenum grade is 0.102%, obtains the molybdenum ore that mass concentration is 33% and starches,
Wherein, the grinding fineness of molybdenum raw ore is that -0.074mm grade accounts for 65wt%；
Step 2: to molybdenum ore obtained in step 1 starch be added No. 0 diesel oil of main catching agent, supplementary catching agent butyl ammonium aerofloat and
Foaming agent terpenic oil roughing 8min obtains the thick tailing of molybdenum and molybdenum grade as 3% molybdenum rough concentrate, No. 0 diesel oil, the butyl ammonium aerofloat
It is calculated as with the additional amount of terpenic oil by the quality of molybdenum raw ore: No. 0 diesel oil 90g/t, butyl ammonium aerofloat 5g/t, terpenic oil 55g/t, then
By molybdenum rough concentrate fast-flotation 30s, fast-flotation molybdic tailing and molybdenum grade are obtained as 22.9% fast-flotation molybdenum rough concentrate；
It is regrinded Step 3: fast-flotation molybdenum rough concentrate obtained in step 2 is carried out one section, obtains one section and regrind product,
Wherein -0.038mm grade accounts for 75wt%；Then product is regrinded to one section successively carry out primary cleaning and recleaning, it will be secondary
The recleaning molybdenum concentrate obtained after selected carries out two sections and regrinds, and obtains two sections and regrinds product, wherein -0.038mm grade accounts for
70wt%；Finally to two sections regrind product successively carry out triple cleaning, four times it is selected and five times selected, obtaining molybdenum grade is
57.19%, the high-grade molybdenum concentrate that the rate of recovery is 41.26%；The primary cleaning, triple cleaning and five times it is selected before be added
The additional amount of inhibitor sodium thioglycolate and P-Nokes, the sodium thioglycolate and P-Nokes is equal based on the quality of molybdenum raw ore
For 25g/t；
Step 4: fast-flotation molybdic tailing obtained in step 2 is first carried out preconcentration, then carry out one section and regrind, obtains
One section is regrinded product, wherein -0.038mm grade accounts for 80wt%；Then product is regrinded to one section and carry out primary cleaning, obtain primary
Selected molybdenum concentrate and molybdenum essence tailing；Recleaning and triple cleaning are successively carried out to primary cleaning molybdenum concentrate, after triple cleaning
Obtained triple cleaning molybdenum concentrate carries out two sections and regrinds, and obtains two sections and regrinds product, wherein -0.038mm grade accounts for 90wt%；Again
To two sections regrind product successively carry out four times it is selected, five times it is selected and six times selected, six times it is selected after obtained six selected molybdenums
Concentrate successively carries out that seven times selected and eight times selected after one section of scouring 6min, obtains that molybdenum grade is 53%, the rate of recovery is
47.12% common molybdenum concentrate；The primary cleaning, triple cleaning, four times it is selected, six times it is selected and seven times it is selected before be added
The additional amount of inhibitor sodium thioglycolate and P-Nokes, the sodium thioglycolate and P-Nokes is equal based on the quality of molybdenum raw ore
For 60g/t；
Step 5: No. 0 diesel oil of collecting agent and foaming agent terpenic oil progress two is added to the thick tailing of molybdenum obtained in step 2
Secondary coarse scan choosing, obtains coarse scan tailing；The additional amount of No. 0 diesel oil described in when each coarse scan is selected and terpenic oil is based on the quality of molybdenum raw ore
Are as follows: No. 0 diesel oil 30g/t, terpenic oil 8g/t；
Step 6: No. 0 diesel oil of collecting agent and foaming agent terpenic oil progress two is added to molybdenum essence tailing obtained in step 4
Secondary essence is scanned, and is obtained essence and is wound up mine；The additional amount of No. 0 diesel oil described in when each essence is scanned and terpenic oil is based on the quality of molybdenum raw ore
Are as follows: No. 0 diesel oil 7g/t, terpenic oil 8g/t.
Obtained step by step in the present embodiment molybdenum grade is 57.19%, the rate of recovery is 41.26% high-grade molybdenum concentrate and
The common molybdenum concentrate that molybdenum grade is 53%, the rate of recovery is 47.12%, the overall recovery of molybdenum concentrate is 88.38%, with prior art
Compared to improving 3.38%.
Embodiment 3
The technique of the present embodiment the following steps are included:
Step 1: adding water to grind the molybdenum raw ore that molybdenum grade is 0.080%, obtains the molybdenum ore that mass concentration is 35% and starches,
Wherein, the grinding fineness of molybdenum raw ore is that -0.074mm grade accounts for 60wt%；
Step 2: to molybdenum ore obtained in step 1 starch be added No. 0 diesel oil of main catching agent, supplementary catching agent butyl ammonium aerofloat and
Loose foaming agent alcohol oil roughing 5min obtains the thick tailing of molybdenum and molybdenum grade as 2% molybdenum rough concentrate, No. 0 diesel oil, the butyl ammonium aerofloat
It is calculated as with the additional amount of terpenic oil by the quality of molybdenum raw ore: No. 0 diesel oil 70g/t, butyl ammonium aerofloat 2g/t, terpenic oil 40g/t, then
By molybdenum rough concentrate fast-flotation 15s, fast-flotation molybdic tailing and molybdenum grade are obtained as 20% fast-flotation molybdenum rough concentrate；
It is regrinded Step 3: fast-flotation molybdenum rough concentrate obtained in step 2 is carried out one section, obtains one section and regrind product,
Wherein -0.038mm grade accounts for 80wt%；Then product is regrinded to one section successively carry out primary cleaning and recleaning, it will be secondary
The recleaning molybdenum concentrate obtained after selected carries out two sections and regrinds, and obtains two sections and regrinds product, wherein -0.038mm grade accounts for
65wt%；Finally to two sections regrind product successively carry out triple cleaning, four times it is selected and five times selected, obtaining molybdenum grade is
57.13%, the high-grade molybdenum concentrate that the rate of recovery is 40.18%；The primary cleaning, triple cleaning and five times it is selected before be added
The additional amount of inhibitor sodium thioglycolate and P-Nokes, the sodium thioglycolate and P-Nokes is equal based on the quality of molybdenum raw ore
For 20g/t；
Step 4: fast-flotation molybdic tailing obtained in step 2 is first carried out preconcentration, then carry out one section and regrind, obtains
One section is regrinded product, wherein -0.038mm grade accounts for 85wt%；Then product is regrinded to one section and carry out primary cleaning, obtain primary
Selected molybdenum concentrate and molybdenum essence tailing；Recleaning and triple cleaning are successively carried out to primary cleaning molybdenum concentrate, after triple cleaning
Obtained triple cleaning molybdenum concentrate carries out two sections and regrinds, and obtains two sections and regrinds product, wherein -0.038mm grade accounts for 80wt%；Again
To two sections regrind product successively carry out four times it is selected, five times it is selected and six times selected, six times it is selected after obtained six selected molybdenums
Concentrate successively carries out that seven times selected and eight times selected after one section of scouring 4min, obtains that molybdenum grade is 52%, the rate of recovery is
47.81% common molybdenum concentrate；The primary cleaning, triple cleaning, four times it is selected, six times it is selected and seven times it is selected before be added
The additional amount of inhibitor sodium thioglycolate and P-Nokes, the sodium thioglycolate and P-Nokes is equal based on the quality of molybdenum raw ore
For 40g/t；
Step 5: No. 0 diesel oil and the terpenic oil progress choosing of coarse scan twice is added to the thick tailing of molybdenum obtained in step 2, obtain
Coarse scan tailing；The additional amount of No. 0 diesel oil described in when each coarse scan is selected and terpenic oil is calculated as by the quality of molybdenum raw ore: No. 0 diesel oil
25g/t, terpenic oil 5g/t；
It scans, obtains Step 6: carrying out essence twice to molybdenum essence tailing obtained in step 4 No. 0 diesel oil of addition and terpenic oil
Essence is wound up mine；The additional amount of No. 0 diesel oil described in when each essence is scanned and terpenic oil is calculated as by the quality of molybdenum raw ore: No. 0 diesel oil 5g/
T, terpenic oil 5g/t.
The high-grade molybdenum concentrate and molybdenum that molybdenum grade is 57.13%, the rate of recovery is 40.18% have been obtained in the present embodiment step by step
The common molybdenum concentrate that grade is 52%, the rate of recovery is 47.81%, the overall recovery of molybdenum concentrate is 87.99%, with prior art phase
Than improving 2.99%.
As shown in Fig. 2, second of specific embodiment of the present invention is described in detail by 4~embodiment of embodiment 6.
Embodiment 4
The technique of the present embodiment the following steps are included:
Step 1: adding water to grind the molybdenum raw ore that molybdenum grade is 0.115%, obtains the molybdenum ore that mass concentration is 30% and starches,
Wherein, the grinding fineness of molybdenum raw ore is that -0.074mm grade accounts for 50wt%；
Fast-flotation 30s is directly carried out Step 2: molybdenum ore obtained in step 1 being starched, foaming agent terpenic oil being added, is obtained
Fast-flotation molybdic tailing and molybdenum grade are 20% fast-flotation molybdenum rough concentrate；The additional amount of the terpenic oil presses the quality of molybdenum raw ore
It is calculated as 20g/t；
It is regrinded Step 3: fast-flotation molybdenum rough concentrate obtained in step 2 is carried out one section, obtains one section and regrind product,
Wherein -0.038mm grade accounts for 65wt%；Then product is regrinded to one section and successively carry out primary cleaning and recleaning, then carry out
Two sections are regrinded, and are obtained two sections and are regrinded product, wherein -0.038mm grade accounts for 80wt%；Finally product is regrinded to two sections successively to carry out
Triple cleaning, four times it is selected and five times selected, obtain the high-grade molybdenum essence that molybdenum grade is 57.85%, the rate of recovery is 41.00%
Mine；The primary cleaning, triple cleaning and five selected preceding addition inhibitor sodium thioglycolate and P-Nokes, the sulfydryl
The additional amount of sodium acetate and P-Nokes is 30g/t based on the quality of molybdenum raw ore；
Step 4: No. 0 diesel oil of main catching agent and supplementary catching agent is added to fast-flotation molybdic tailing obtained in step 2
Butyl ammonium aerofloat roughing 9min obtains molybdenum rough concentrate and the thick tailing of molybdenum；The additional amount of No. 0 diesel oil and butyl ammonium aerofloat presses molybdenum raw ore
Quality be calculated as: No. 0 diesel oil 100g/t, butyl ammonium aerofloat 6g/t；
Step 5: molybdenum rough concentrate obtained in step 4 is first carried out preconcentration, then carry out one section and regrind, obtains one section again
Product is ground, wherein -0.038mm grade accounts for 90wt%；Then product is regrinded to one section and carry out primary cleaning, obtain primary cleaning molybdenum
Concentrate and molybdenum essence tailing；Recleaning and triple cleaning are successively carried out to primary cleaning molybdenum concentrate, by what is obtained after triple cleaning
Triple cleaning molybdenum concentrate carries out two sections and regrinds, and obtains two sections and regrinds product, wherein -0.038mm grade accounts for 85wt%；Again to two sections
Regrind product successively carry out four times it is selected, five times it is selected and six times selected, six times it is selected after obtained six selected molybdenum concentrates warps
Successively carry out that seven times are selected and eight times are selected after one section of scouring 8min, obtain molybdenum grade be 54.15%, the rate of recovery 47.27%
Common molybdenum concentrate；The primary cleaning, triple cleaning, four selected, six selected and seven selected preceding addition inhibitor
The additional amount of sodium thioglycolate and P-Nokes, the sodium thioglycolate and P-Nokes is 80g/ based on the quality of molybdenum raw ore
t；
Step 6: No. 0 diesel oil of collecting agent and foaming agent terpenic oil progress two is added to the thick tailing of molybdenum obtained in step 4
Secondary coarse scan choosing, obtains coarse scan tailing；The additional amount of No. 0 diesel oil described in when each coarse scan is selected and terpenic oil is based on the quality of molybdenum raw ore
Are as follows: No. 0 diesel oil 35g/t, terpenic oil 10g/t；
Step 7: No. 0 diesel oil of collecting agent and foaming agent terpenic oil progress two is added to molybdenum essence tailing obtained in step 5
Secondary essence is scanned, and is obtained essence and is wound up mine；The additional amount of No. 0 diesel oil described in when each essence is scanned and terpenic oil is based on the quality of molybdenum raw ore
Are as follows: No. 0 diesel oil 10g/t, terpenic oil 10g/t.
The high-grade molybdenum concentrate and molybdenum that molybdenum grade is 57.85%, the rate of recovery is 41.00% have been obtained in the present embodiment step by step
The common molybdenum concentrate that grade is 54.15%, the rate of recovery is 47.27%, the overall recovery of molybdenum concentrate is 88.27%, with existing work
Skill is compared and improves 3.27%.
Embodiment 5
The technique of the present embodiment the following steps are included:
Step 1: adding water to grind the molybdenum raw ore that molybdenum grade is 0.105%, obtains the molybdenum ore that mass concentration is 32% and starches,
Wherein, the grinding fineness of molybdenum raw ore is that -0.074mm grade accounts for 55wt%；
Fast-flotation 35s is directly carried out Step 2: molybdenum ore obtained in step 1 being starched, foaming agent terpenic oil being added, is obtained
The fast-flotation molybdenum rough concentrate that fast-flotation molybdic tailing and molybdenum grade are 13.5%；The additional amount of the terpenic oil is by molybdenum raw ore
Quality is calculated as 30g/t；
It is regrinded Step 3: fast-flotation molybdenum rough concentrate obtained in step 2 is carried out one section, obtains one section and regrind product,
Wherein -0.038mm grade accounts for 80wt%；Then product is regrinded to one section and successively carry out primary cleaning and recleaning, then carry out
Two sections are regrinded, and are obtained two sections and are regrinded product, wherein -0.038mm grade accounts for 70wt%；Finally product is regrinded to two sections successively to carry out
Triple cleaning, four times it is selected and five times selected, obtain the high-grade molybdenum essence that molybdenum grade is 57.48%, the rate of recovery is 40.25%
Mine；The primary cleaning, triple cleaning and five selected preceding addition inhibitor sodium thioglycolate and P-Nokes, the sulfydryl
The additional amount of sodium acetate and P-Nokes is 20g/t based on the quality of molybdenum raw ore；
Step 4: No. 0 diesel oil of main catching agent and supplementary catching agent is added to fast-flotation molybdic tailing obtained in step 2
Butyl ammonium aerofloat roughing 8min obtains molybdenum rough concentrate and the thick tailing of molybdenum；The additional amount of No. 0 diesel oil and butyl ammonium aerofloat presses molybdenum raw ore
Quality be calculated as: No. 0 diesel oil 90g/t, butyl ammonium aerofloat 4g/t；
Step 5: molybdenum rough concentrate obtained in step 4 is first carried out preconcentration, then carry out one section and regrind, obtains one section again
Product is ground, wherein -0.038mm grade accounts for 80wt%；Then product is regrinded to one section and carry out primary cleaning, obtain primary cleaning molybdenum
Concentrate and molybdenum essence tailing；Recleaning and triple cleaning are successively carried out to primary cleaning molybdenum concentrate, by what is obtained after triple cleaning
Triple cleaning molybdenum concentrate carries out two sections and regrinds, and obtains two sections and regrinds product, wherein -0.038mm grade accounts for 90wt%；Again to two sections
Regrind product successively carry out four times it is selected, five times it is selected and six times selected, six times it is selected after obtained six selected molybdenum concentrates warps
Successively carry out that seven times are selected and eight times are selected after one section of scouring 6min, obtain molybdenum grade be 53.23%, the rate of recovery 47.96%
Common molybdenum concentrate；The primary cleaning, triple cleaning, four selected, six selected and seven selected preceding addition inhibitor
The additional amount of sodium thioglycolate and P-Nokes, the sodium thioglycolate and P-Nokes is 60g/ based on the quality of molybdenum raw ore
t；
Step 6: No. 0 diesel oil of collecting agent and foaming agent terpenic oil progress two is added to the thick tailing of molybdenum obtained in step 4
Secondary coarse scan choosing, obtains coarse scan tailing；The additional amount of No. 0 diesel oil described in when each coarse scan is selected and terpenic oil is based on the quality of molybdenum raw ore
Are as follows: No. 0 diesel oil 30g/t, terpenic oil 8g/t；
Step 7: No. 0 diesel oil of collecting agent and foaming agent terpenic oil progress two is added to molybdenum essence tailing obtained in step 5
Secondary essence is scanned, and is obtained essence and is wound up mine；The additional amount of No. 0 diesel oil described in when each essence is scanned and terpenic oil is based on the quality of molybdenum raw ore
Are as follows: No. 0 diesel oil 7g/t, terpenic oil 8g/t.
The high-grade molybdenum concentrate and molybdenum that molybdenum grade is 57.48%, the rate of recovery is 40.25% have been obtained in the present embodiment step by step
The common molybdenum concentrate that grade is 53.23%, the rate of recovery is 47.96%, the overall recovery of molybdenum concentrate is 88.21%, with existing work
Skill is compared and improves 3.21%.
Embodiment 6
The technique of the present embodiment the following steps are included:
Step 1: adding water to grind the molybdenum raw ore that molybdenum grade is 0.080%, obtains the molybdenum ore that mass concentration is 35% and starches,
Wherein, the grinding fineness of molybdenum raw ore is that -0.074mm grade accounts for 65wt%；
Fast-flotation 20s is directly carried out Step 2: molybdenum ore obtained in step 1 being starched, foaming agent terpenic oil being added, is obtained
Fast-flotation molybdic tailing and molybdenum grade are 10% fast-flotation molybdenum rough concentrate；The additional amount of the terpenic oil presses the quality of molybdenum raw ore
It is calculated as 15g/t；
It is regrinded Step 3: fast-flotation molybdenum rough concentrate obtained in step 2 is carried out one section, obtains one section and regrind product,
Wherein -0.038mm grade accounts for 70wt%；Then product is regrinded to one section and successively carry out primary cleaning and recleaning, then carry out
Two sections are regrinded, and are obtained two sections and are regrinded product, wherein -0.038mm grade accounts for 65wt%；Finally product is regrinded to two sections successively to carry out
Triple cleaning, four times it is selected and five times selected, obtain the high-grade molybdenum essence that molybdenum grade is 57.26%, the rate of recovery is 39.58%
Mine；The primary cleaning, triple cleaning and five selected preceding addition inhibitor sodium thioglycolate and P-Nokes, the sulfydryl
The additional amount of sodium acetate and P-Nokes is 25g/t based on the quality of molybdenum raw ore；
Step 4: No. 0 diesel oil of main catching agent and supplementary catching agent is added to fast-flotation molybdic tailing obtained in step 2
Butyl ammonium aerofloat roughing 6min obtains molybdenum rough concentrate and the thick tailing of molybdenum；The additional amount of No. 0 diesel oil and butyl ammonium aerofloat presses molybdenum raw ore
Quality be calculated as: No. 0 diesel oil 80g/t, butyl ammonium aerofloat 2g/t；
Step 5: molybdenum rough concentrate obtained in step 4 is first carried out preconcentration, then carry out one section and regrind, obtains one section again
Product is ground, wherein -0.038mm grade accounts for 85wt%；Then product is regrinded to one section and carry out primary cleaning, obtain primary cleaning molybdenum
Concentrate and molybdenum essence tailing；Recleaning and triple cleaning are successively carried out to primary cleaning molybdenum concentrate, by what is obtained after triple cleaning
Triple cleaning molybdenum concentrate carries out two sections and regrinds, and obtains two sections and regrinds product, wherein -0.038mm grade accounts for 80wt%；Again to two sections
Regrind product successively carry out four times it is selected, five times it is selected and six times selected, six times it is selected after obtained six selected molybdenum concentrates warps
Successively carry out that seven times are selected and eight times are selected after one section of scouring 4min, obtain molybdenum grade be 52.00%, the rate of recovery 48.23%
Common molybdenum concentrate；The primary cleaning, triple cleaning, four selected, six selected and seven selected preceding addition inhibitor
The additional amount of sodium thioglycolate and P-Nokes, the sodium thioglycolate and P-Nokes is 40g/ based on the quality of molybdenum raw ore
t；
Step 6: No. 0 diesel oil of collecting agent and foaming agent terpenic oil progress two is added to the thick tailing of molybdenum obtained in step 4
Secondary coarse scan choosing, obtains coarse scan tailing；The additional amount of No. 0 diesel oil described in when each coarse scan is selected and terpenic oil is based on the quality of molybdenum raw ore
Are as follows: No. 0 diesel oil 25g/t, terpenic oil 5g/t；
Step 7: No. 0 diesel oil of collecting agent and foaming agent terpenic oil progress two is added to molybdenum essence tailing obtained in step 5
Secondary essence is scanned, and is obtained essence and is wound up mine；The additional amount of No. 0 diesel oil described in when each essence is scanned and terpenic oil is based on the quality of molybdenum raw ore
Are as follows: No. 0 diesel oil 5g/t, terpenic oil 5g/t.
The high-grade molybdenum concentrate and molybdenum that molybdenum grade is 57.26%, the rate of recovery is 39.58% have been obtained in the present embodiment step by step
The common molybdenum concentrate that grade is 52.00%, the rate of recovery is 48.23%, the overall recovery of molybdenum concentrate is 87.81%, with existing work
Skill is compared and improves 2.81%.
The above is only preferable profile embodiment of the invention, not does any restrictions to the present invention, all
According to inventive technique any simple modification substantially to the above embodiments, change and equivalent structural changes, this is still fallen within
In the protection scope of inventive technique scheme.
Claims (8)
1. a kind of technique of substep production high-grade molybdenum concentrate and common molybdenum concentrate, which is characterized in that the technique includes following step
It is rapid:
Step 1: by molybdenum grade be 0.080%~0.115% molybdenum raw ore add water to grind, obtain mass concentration be 30%~
35% molybdenum ore slurry, wherein the grinding fineness of molybdenum raw ore is that -0.074mm grade accounts for 50wt%~65wt%；
Roughing is carried out Step 2: molybdenum ore obtained in step 1 is starched, obtains molybdenum rough concentrate and the thick tailing of molybdenum, obtained molybdenum is thick
Concentrate carries out fast-flotation, obtains fast-flotation molybdenum rough concentrate and fast-flotation molybdic tailing；Or by molybdenum obtained in step 1
Ore pulp directly carries out fast-flotation, obtains fast-flotation molybdenum rough concentrate and fast-flotation molybdic tailing；
It is regrinded Step 3: fast-flotation molybdenum rough concentrate obtained in step 2 is carried out one section, obtains one section and regrind product,
In -0.038mm grade account for 65wt%~80wt%；Then product is regrinded to one section successively carry out primary cleaning and recleaning,
Two sections are carried out again to regrind, two sections is obtained and regrinds product, wherein -0.038mm grade accounts for 65wt%~80wt%；Again to two sections finally
Mill product successively carry out triple cleaning, four times it is selected and five times selected, obtain the high-grade molybdenum concentrate that molybdenum grade is greater than 57%；Institute
State primary cleaning, triple cleaning and five times it is selected before be added inhibitor, the inhibitor be sodium thioglycolate and P-Nokes,
The additional amount of the sodium thioglycolate and P-Nokes is 20g/t~30g/t based on the quality of molybdenum raw ore；
Step 4: carrying out roughing for the fast-flotation molybdic tailing that direct fast-flotation obtains is starched by molybdenum ore in step 2, molybdenum is obtained
Rough concentrate and the thick tailing of molybdenum；
Step 5: by the fast-flotation molybdic tailing obtained in step 2 by molybdenum rough concentrate fast-flotation or obtained in step 4
Molybdenum rough concentrate carries out preconcentration, then carries out one section and regrinds, and obtains one section and regrinds product, wherein -0.038mm grade account for 80wt%~
90wt%；Then product is regrinded to one section and carry out primary cleaning, primary cleaning molybdenum concentrate and molybdenum essence tailing are obtained, to primary cleaning
Molybdenum concentrate successively carries out recleaning and triple cleaning, then carries out two sections and regrind, and obtains two sections and regrinds product, wherein -0.038mm
Grade accounts for 80wt%~90wt%；Again to two sections regrind product successively carry out four times it is selected, five times it is selected and six times selected, obtain
To six selected molybdenum concentrates, successively carry out that seven times are selected and eight times are selected after one section is cleaned, obtain molybdenum grade for 52%~
55% common molybdenum concentrate；The primary cleaning, triple cleaning, four selected, six selected and seven selected preceding addition suppressions
Preparation, the inhibitor are sodium thioglycolate and P-Nokes, and the additional amount of the sodium thioglycolate and P-Nokes is former by molybdenum
The quality meter of mine is 40g/t~80g/t.
2. the technique of a kind of substep production high-grade molybdenum concentrate and common molybdenum concentrate according to claim 1, feature exist
In addition main catching agent, supplementary catching agent and foaming agent, the main catching agent are No. 0 diesel oil, institute when roughing described in step 2
Stating supplementary catching agent is butyl ammonium aerofloat, and the foaming agent is terpenic oil；The addition of No. 0 diesel oil, butyl ammonium aerofloat and terpenic oil
Amount is calculated as by the quality of molybdenum raw ore: No. 0 diesel oil 70g/t~110g/t, butyl ammonium aerofloat 2g/t~7g/t, and terpenic oil 40g/t~
70g/t；The time of the roughing is 5min~10min.
3. the technique of a kind of substep production high-grade molybdenum concentrate and common molybdenum concentrate according to claim 1, feature exist
In the time of the fast-flotation of molybdenum rough concentrate described in step 2 is 15s~35s.
4. the technique of a kind of substep production high-grade molybdenum concentrate and common molybdenum concentrate according to claim 1, feature exist
In the slurry of molybdenum ore described in step 2 directly carries out that foaming agent is added when fast-flotation, and the foaming agent is terpenic oil, the pine camphor
The additional amount of oil is calculated as 15g/t~30g/t by the quality of molybdenum raw ore；The time of the fast-flotation is 20s~35s.
5. the technique of a kind of substep production high-grade molybdenum concentrate and common molybdenum concentrate according to claim 1, feature exist
In addition main catching agent and supplementary catching agent, the main catching agent are No. 0 diesel oil, the auxiliary when roughing described in step 4
Collecting agent is butyl ammonium aerofloat, and the additional amount of No. 0 diesel oil and butyl ammonium aerofloat is calculated as by the quality of molybdenum raw ore: No. 0 diesel oil 80g/t
~100g/t, butyl ammonium aerofloat 2g/t~6g/t；The time of the roughing is 6min~9min.
6. the technique of a kind of substep production high-grade molybdenum concentrate and common molybdenum concentrate according to claim 1, feature exist
In, by the thick tailing of molybdenum described in the thick tailing of molybdenum described in step 2 and step 4 carry out coarse scan twice choosing, it is thick to respectively obtain molybdenum
It winds up mine；Collecting agent and foaming agent are added when the coarse scan is selected twice, the collecting agent is No. 0 diesel oil, and the foaming agent is
The additional amount of terpenic oil, No. 0 diesel oil and terpenic oil is calculated as by the quality of molybdenum raw ore: No. 0 diesel oil 25g/t~35g/t, pine camphor
Oily 5g/t~10g/t.
7. the technique of a kind of substep production high-grade molybdenum concentrate and common molybdenum concentrate according to claim 1, feature exist
In the time of one section of scouring described in step 5 is 4min~8min.
8. the technique of a kind of substep production high-grade molybdenum concentrate and common molybdenum concentrate according to claim 1, feature exist
In the tailing of molybdenum essence described in step 5 is carried out essence twice and is scanned, molybdenum essence is obtained and winds up mine；It is added when the essence is scanned twice
Collecting agent and foaming agent, the collecting agent are No. 0 diesel oil, and the foaming agent is terpenic oil；No. 0 diesel oil and terpenic oil plus
Enter amount to be calculated as by the quality of molybdenum raw ore: No. 0 diesel oil 5g/t~10g/t, terpenic oil 5g/t~10g/t.
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