CN107617508A - Fine-grain tungsten-tin associated ore beneficiation process - Google Patents
Fine-grain tungsten-tin associated ore beneficiation process Download PDFInfo
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Abstract
The invention discloses a fine-grain tungsten-tin associated ore beneficiation process, which comprises the following specific steps: (1) crushing a secondary slime part generated by quartz vein type tungsten-tin associated ore or a tailing part containing polymetallic ore after flotation of sulphide ore; (2) and (3) reselection and enrichment: gravity tailing discarding with tailing discarding amount of 60-85%; (3) reverse flotation desilication: the regulator is sodium carbonate solution and starch solution, and the collector is one or more of ether amine solution, dodecylamine solution and octadecylamine solution; (4) magnetic separation of tungsten-tin ore: the magnetic separation concentrate is wolframite, and the magnetic separation tailings are cassiterite concentrate. Aiming at the fine-grained wolframite and stannite, the invention adopts the processes of gravity concentration tailing rejection preselection, reverse flotation desulfuration desiliconization and magnetic separation for the wolframite and the stannite, improves the recovery rate of the wolframite and the stannite on the premise of ensuring the grade of the concentrate, and is mainly applied to the comprehensive recovery of the wolframite and the stannite in the wolframite and stannite associated ores and nonferrous metal associated wolframite and stannite.
Description
Technical field
The invention belongs to non-ferrous metal ore technical field, and in particular to a kind of particulate tungsten tin intergrowth mineral ore-dressing technique.
Background technology
Tungsten tin mine is crisp, easily overground in grinding process, and the tungsten tin mine recovery of thin mud level is more difficult, in processing quartz vein
Preferable separation index can be obtained to coarse granule material recycle by breaking mill-stage grading using the stage during type tungsten tin mine ore dressing, to thin
Grain part is how undesirable using gravity treatment and magnetic separation process integration, separating effect.In this kind of ore deposit of the common association tungsten tin of processing polymetallic ore
Shi Shi, due to recovery sulphide ore to be taken into account（Such as containing copper, lead, zinc）Accounted for, it is necessary to which mog is controlled in -200 mesh contents
50% ~ 70%, first Flotation of Sulfide Ores, then tungsten tin mine is reclaimed from mine tailing, and at present, tungsten tin mine recovery process flotation-weight from mine tailing
Choosing-magnetic separation process flow.I.e.：Flotation operation main purpose is Flotation of Sulfide Ores, is obtained according to ore density variation by gravity treatment
Wolframite and cassiterite bulk concentrate.Pass through high intensity magnetic separation separating tungsten, tin.Handle Quartz Vein Type particulate tungsten tin mine and the common companion of polymetallic ore
All there is, if to obtain purer tungsten tin bulk concentrate, certainly will repeatedly throw tail in reuse adoption process for raw tungsten tin mine（Or increase
Add and throw tail amount）The gangue minerals such as quartzy feldspar are abandoned as much as possible, but the loss of tungsten tin is larger during tail is thrown（It is main
If fine grained tungsten tin mine or part intergrowth）, if it is desired to improving the rate of recovery of bulk concentrate, that just needs few throwing tail, so
Coarse grained gangue will enter in concentrate, influence concentrate grade.Tungsten tin mine direct flotation（The flotation of tungsten tin i.e. from gangue mineral
Ore deposit）, wolframite and cassiterite belong to the mineral of more difficult flotation, more harsh to floating agent and flotation conditions requirement, flotation work
Skill recovery tungsten tin mine floating agent consumption is big, production cost is higher, and separation index is also undesirable.
The sorting of tungsten tin intergrowth mineral caused particulate tungsten tin mine in broken grinding process.Tungsten tin intergrowth mineral is to avoid
The argillization of tungsten tin in broken grinding process, conventional sorting process are to break mill-stage sorting the stage, and raw granulate fraction, which uses, jumps
Eliminate, table concentration, intensity magnetic separator magnetic separation can obtain preferable separation index, during stage broken mill, caused fine grained
Using shaking table, centrifugal ore separator, high intensity magnetic separation sorting, the concentrate grade and the rate of recovery often finally obtained is all relatively low for part.
The synthetical recovery of association tungsten tin mine in non-ferrous metal, such as the recovery of the tungsten tin mine of association in copper zinc-silver ore deposit, for this
Class ore will consider the synthetical recovery of copper zinc ore and tungsten tin mine, and the technique of use is usually to contain ore ore grinding to -200 mesh
Amount accounts for 50%-70%, and first flotation obtains the sulphide concentrates such as copper zinc, then the recycling tungsten tin mine from mine tailing, and this results in part
Tungsten tin mine argillization in grinding process.
The content of the invention
The present invention for Fine wolframite and cassiterite recovery rate in ore-dressing is low present in conventional ore-dressing technique the problem of, carry
For a kind of particulate tungsten tin intergrowth mineral ore-dressing technique.
The purpose of the present invention is realized in the following manner：
A kind of particulate tungsten tin intergrowth mineral ore-dressing technique, is comprised the following steps that：
（1）By Quartz Vein Type tungsten tin intergrowth mineral broken with caused secondary slime part in grinding process or containing polymetallic ore
Mine tailing partial crushing to granularity after Flotation of Sulfide Ores is less than 0.03mm；
（2）Gravity treatment is enriched with：Using shaking table, centrifugal ore separator, Knelson concentrator, Fa Erken ore separators, hydrocyclone, spiral
Tail is thrown in chute at least one progress gravity treatment therein, and gangue throws tail amount in 60%-85%；
（3）Counterfloatating desiliconization：Regulator is sodium carbonate liquor 20-500g/t, the mass concentration 1-5% that mass concentration is 1-5%
Starch solution 10-200g/t, collecting agent be mass concentration be 1-5% ether amines solution, mass concentration be 1-5% lauryl amine it is molten
Liquid, the octadecylamine solution one or more therein that mass concentration is 1-5%, dosage 1-100g/t, flotation number are 1-3 times；
（4）Magnetic separation separates tungsten tin mine：Magnet separator magnetic field intensity is 400KA/m-900KA/m, and magnetic concentrate is wolframite, magnetic separation tail
Ore deposit is cassiterite concentrate.
In step（3）Reverse flotation desulfurizing step is carried out before, is specially：Activator uses sulfuric acid of the mass concentration for 1-5%
Solution or the copper-bath that mass concentration is 1-5%, dosage 10-500g/t, collecting agent use fourth of the mass concentration for 1-5%
Base xanthate solution or mass concentration are 1-5% butylamine black powder solution, dosage 1-100g/t, foaming agent use mass concentration for
1-5% pine camphor oil solution or mass concentration is 1-5% methyl isobutyl carbinol（MIBC）Solution usage 1-50g/t, flotation time
Number is 1-2 times.
The flotation of ether amines class, mixing amine collector to quartz, feldspar at present shows preferable separating effect, this kind of medicine
Agent is to tungsten tin mine collecting poor-performing, and therefore, it is feasible to be applied to using reverse flotation quartz feldspar in the sorting process of tungsten tin mine
's.
Relative to prior art, the present invention is directed to particulate tungsten tin mine, and throwing tail using gravity treatment preselects, reverse flotation desulfurizing desiliconization,
Magnetic separation separates the technique of wolframite and cassiterite, on the premise of concentrate grade is ensured, improves wolframite and the cassiterite rate of recovery, mainly
Synthetical recovery applied to tungsten tin in tungsten tin intergrowth mineral, non-ferrous metal association tungsten tin mine.
Brief description of the drawings
Fig. 1 is the process chart of the present invention.
Embodiment
Raw materials used middle tungsten is free of based on wolframite or containing micro scheelite, tin is based on cassiterite in the present invention.Ore
Based on polymetallic ore or tungsten tin intergrowth mineral, gangue mineral with quartz, based on feldspar, sulphide ore based on pyrite, or its
Its sulphide ore such as magnetic iron ore, mispickel, mispickel etc., or without sulphide ore.
Butyl xanthate and butylamine black powder are purchased from Zibo twilight chemical materials Co., Ltd, and terpenic oil is purchased from Hubei Jin Ming continents
Chemical technology Co., Ltd, methyl isobutyl carbinol are purchased from Qingdao Xin Yuan auxiliary chemicals Co., Ltd.
Embodiment 1：
A kind of particulate tungsten tin intergrowth mineral ore-dressing technique, is comprised the following steps that：
（1）By Quartz Vein Type tungsten tin intergrowth mineral broken with caused secondary slime part in grinding process or containing polymetallic ore
Mine tailing partial crushing to granularity after Flotation of Sulfide Ores is less than 0.03mm；
（2）Gravity treatment is enriched with：Using shaking table, centrifugal ore separator, Knelson concentrator, Fa Erken ore separators, hydrocyclone, spiral
Tail is thrown in chute at least one progress gravity treatment therein, and gangue throws tail amount in 60%-85%；
（3）Counterfloatating desiliconization：Regulator is sodium carbonate liquor 20-500g/t, the mass concentration 1-5% that mass concentration is 1-5%
Starch solution 10-200g/t, collecting agent be mass concentration be 1-5% ether amines solution, mass concentration be 1-5% lauryl amine it is molten
Liquid, the octadecylamine solution one or more therein that mass concentration is 1-5%, dosage 1-100g/t, flotation number are 1-3 times；
（4）Magnetic separation separates tungsten tin mine：Magnet separator magnetic field intensity is 400KA/m-900KA/m, and magnetic concentrate is wolframite, magnetic separation tail
Ore deposit is cassiterite concentrate.
In step（3）Reverse flotation desulfurizing step is carried out before, is specially：Activator uses sulfuric acid of the mass concentration for 1-5%
Solution or the copper-bath that mass concentration is 1-5%, dosage 10-500g/t, collecting agent use fourth of the mass concentration for 1-5%
Base xanthate solution or mass concentration are 1-5% butylamine black powder solution, dosage 1-100g/t, foaming agent use mass concentration for
1-5% pine camphor oil solution or mass concentration is 1-5% methyl isobutyl carbinol（MIBC）Solution usage 1-50g/t, flotation time
Number is 1-2 times.If not containing sulfide in ore, reverse flotation desulfurizing step can be omitted.
Embodiment 2：
A kind of particulate tungsten tin intergrowth mineral ore-dressing technique, is comprised the following steps that：
（1）By Quartz Vein Type tungsten tin intergrowth mineral broken with caused secondary slime part in grinding process or containing polymetallic ore
Mine tailing partial crushing to granularity after Flotation of Sulfide Ores is less than 0.03mm；
（2）Gravity treatment is enriched with：Gravity treatment is carried out using shaking table and throws tail, it is 60% that gangue, which throws tail amount,；
（3）Reverse flotation desulfurizing：One roughing, pulp density 25%, activator use mass concentration to be used for 1% sulfuric acid solution
Measure as 10g/t, pH=6, collecting agent uses mass concentration, and for 1% butyl xanthate solution, dosage 1g/t, foaming agent uses quality
Concentration be 1% methyl isobutyl carbinol solution, dosage 1g/t, flotation time 3 minutes；
（4）Counterfloatating desiliconization：One roughing, pulp density 13%, regulator are the sodium carbonate liquor 20g/ that mass concentration is 1%
T, mass concentration is 1% starch solution 10g/t, and collecting agent is the ether amines solution that mass concentration is 1%, dosage 1g/t；
（5）Magnetic separation separates tungsten tin mine：Magnet separator magnetic field intensity is 400KA/m, and magnetic concentrate is wolframite, and magnetic tailing is cassiterite
Concentrate.
Final wolframite WO3Grade 61.43%, the rate of recovery 68.12%, cassiterite concentrate Sn grades 39.68%, the rate of recovery
57.32%, cassiterite time concentrate Sn grade 9.84%, the rate of recovery 7.25%, cassiterite concentrate overall recovery 64.57%.
Embodiment 3：
A kind of particulate tungsten tin intergrowth mineral ore-dressing technique, is comprised the following steps that：
（1）By Quartz Vein Type tungsten tin intergrowth mineral broken with caused secondary slime part in grinding process or containing polymetallic ore
Mine tailing partial crushing to granularity after Flotation of Sulfide Ores is less than 0.03mm；
（2）Gravity treatment is enriched with：Gravity treatment is carried out using centrifugal ore separator and throws tail, it is 65% that gangue, which throws tail amount,；
（3）Reverse flotation desulfurizing：One roughing, pulp density 26%, activator use mass concentration to be used for 2% sulfuric acid solution
Measure and use mass concentration for 50g/t, pH=5.8, collecting agent as 2% butyl xanthate solution, dosage 10g/t, foaming agent uses
Mass concentration be 2% pine camphor oil solution, dosage 5g/t, flotation time 4 minutes；
（4）Counterfloatating desiliconization：One roughing, pulp density 14%, regulator are the sodium carbonate liquor 50g/ that mass concentration is 2%
T, mass concentration is 2% starch solution 20g/t, and collecting agent is the lauryl amine solution that mass concentration is 2%, dosage 10g/t, is floated
Select the time 2 minutes；
（5）Magnetic separation separates tungsten tin mine：Magnet separator magnetic field intensity is 500KA/m, and magnetic concentrate is wolframite, and magnetic tailing is cassiterite
Concentrate.
Final wolframite WO3Grade 61.80%, the rate of recovery 68.46%, cassiterite concentrate Sn grades 39.94%, the rate of recovery
57.62%, cassiterite time concentrate Sn grade 10.02%, the rate of recovery 7.53%, cassiterite concentrate overall recovery 65.15%.
Embodiment 4：
A kind of particulate tungsten tin intergrowth mineral ore-dressing technique, is comprised the following steps that：
（1）By Quartz Vein Type tungsten tin intergrowth mineral broken with caused secondary slime part in grinding process or containing polymetallic ore
Mine tailing partial crushing to granularity after Flotation of Sulfide Ores is less than 0.03mm；
（2）Gravity treatment is enriched with：Gravity treatment is carried out using Knelson concentrator and throws tail, it is 70% that gangue, which throws tail amount,；
（3）Reverse flotation desulfurizing：One roughing, pulp density 24%, activator use mass concentration for 3% copper-bath,
Dosage is 100g/t, pH=5.6, and collecting agent uses mass concentration to be adopted for 3% butylamine black powder solution, dosage 20g/t, foaming agent
With the methyl isobutyl carbinol solution that mass concentration is 3%, dosage 10g/t, flotation time 5 minutes；
（4）Counterfloatating desiliconization：One roughing, pulp density 13%, regulator are the sodium carbonate liquor 50g/ that mass concentration is 3%
T, mass concentration is 3% starch solution 25g/t, and collecting agent is the octadecylamine solution that mass concentration is 3%, dosage 10g/t, is floated
Select the time 3 minutes；Once purging selection, pulp density 11%, regulator be mass concentration be 3% sodium carbonate liquor 50g/t, quality
Concentration is 3% starch solution 25g/t, and collecting agent is the octadecylamine solution that mass concentration is 3%, dosage 10g/t, flotation time
2 minutes；
（5）Magnetic separation separates tungsten tin mine：Magnet separator magnetic field intensity is 600KA/m, and magnetic concentrate is wolframite, and magnetic tailing is cassiterite
Concentrate.
Final wolframite WO3Grade 62.13%, the rate of recovery 68.89%, cassiterite concentrate Sn grades 40.27%, the rate of recovery
57.99%, cassiterite time concentrate Sn grade 10.43%, the rate of recovery 7.86%, cassiterite concentrate overall recovery 65.85%.
Embodiment 5：
A kind of particulate tungsten tin intergrowth mineral ore-dressing technique, is comprised the following steps that：
（1）By Quartz Vein Type tungsten tin intergrowth mineral broken with caused secondary slime part in grinding process or containing polymetallic ore
Mine tailing partial crushing to granularity after Flotation of Sulfide Ores is less than 0.03mm；
（2）Gravity treatment is enriched with：Gravity treatment is carried out using Fa Erken ore separators and throws tail, it is 75% that gangue, which throws tail amount,；
（3）Reverse flotation desulfurizing：One roughing, pulp density 25%, activator use mass concentration to be used for 3% sulfuric acid solution
Measure and use mass concentration for 100g/t, pH=5.5, collecting agent as 2% butyl xanthate solution, dosage 20g/t, foaming agent uses
Mass concentration be 4% pine camphor oil solution, dosage 10g/t, flotation time 5 minutes；Once purging selection, pulp density 15%, activation
Agent uses mass concentration as 3% sulfuric acid solution, dosage 100g/t, pH=5.5, collecting agent use mass concentration for 2% butyl
Xanthate solution, dosage 20g/t, foaming agent use mass concentration to divide for 4% pine camphor oil solution, dosage 10g/t, flotation time 2
Clock；
（4）Counterfloatating desiliconization：One roughing, pulp density 14%, regulator are the sodium carbonate liquor that mass concentration is 3%
100g/t, the starch solution 40g/t that mass concentration is 2%, collecting agent is the ether amines solution that mass concentration is 3% and mass concentration is
The mass ratio of the mixed solution of 3% lauryl amine solution, dosage 20g/t, ether amines solution and lauryl amine solution is 1:1, during flotation
Between 3 minutes；Once purging selection, pulp density 10%, regulator be mass concentration be 3% sodium carbonate liquor 100g/t, quality it is dense
The starch solution 40g/t for 5% is spent, collecting agent is that the ether amines solution that mass concentration is 3% and the lauryl amine that mass concentration is 3% are molten
The mass ratio of the mixed solution of liquid, dosage 20g/t, ether amines solution and lauryl amine solution is 1:1, flotation time 2 minutes；
（5）Magnetic separation separates tungsten tin mine：Magnet separator magnetic field intensity is 650KA/m, and magnetic concentrate is wolframite, and magnetic tailing is cassiterite
Concentrate.
Final wolframite WO3Grade 62.54%, the rate of recovery 69.20%, cassiterite concentrate Sn grades 40.65%, the rate of recovery
58.37%, cassiterite time concentrate Sn grade 10.86%, the rate of recovery 8.22%, cassiterite concentrate overall recovery 66.59%.
Embodiment 6：
A kind of particulate tungsten tin intergrowth mineral ore-dressing technique, is comprised the following steps that：
（1）By Quartz Vein Type tungsten tin intergrowth mineral broken with caused secondary slime part in grinding process or containing polymetallic ore
Mine tailing partial crushing to granularity after Flotation of Sulfide Ores is less than 0.03mm；
（2）Gravity treatment is enriched with：Gravity treatment is carried out using hydrocyclone and throws tail, it is 80% that gangue, which throws tail amount,；
（3）Reverse flotation desulfurizing：One roughing, pulp density 26%, activator use mass concentration for 4% copper-bath,
Dosage is 150g/t, pH=5.4, and collecting agent uses mass concentration to be adopted for 4% butyl xanthate solution, dosage 30g/t, foaming agent
With the pine camphor oil solution that mass concentration is 4%, dosage 15g/t, flotation time 4 minutes；Once purging selection, pulp density 15% are living
Agent uses mass concentration to use mass concentration for 4% copper-bath, dosage 150g/t, pH=5.4, collecting agent as 4%
Butyl xanthate solution, dosage 30g/t, foaming agent use mass concentration as 4% pine camphor oil solution, dosage 15g/t, during flotation
Between 3 minutes；
（4）Counterfloatating desiliconization：One roughing, pulp density 14%, regulator are the sodium carbonate liquor that mass concentration is 4%
150g/t, the starch solution 50g/t that mass concentration is 4%, collecting agent is the ether amines solution that mass concentration is 4% and mass concentration is
The mass ratio of the mixed solution of 4% octadecylamine solution, dosage 30g/t, ether amines solution and octadecylamine solution is 1:1, during flotation
Between 4 minutes；Once purging selection, pulp density 11%, regulator be mass concentration be 4% sodium carbonate liquor 150g/t, quality it is dense
The starch solution 50g/t for 4% is spent, collecting agent is that the ether amines solution that mass concentration is 4% and the octadecylamine that mass concentration is 4% are molten
The mass ratio of the mixed solution of liquid, dosage 30g/t, ether amines solution and octadecylamine solution is 1:1, flotation time 1.5 minutes；
（5）Magnetic separation separates tungsten tin mine：Magnet separator magnetic field intensity is 700KA/m, and magnetic concentrate is wolframite, and magnetic tailing is cassiterite
Concentrate.
Final wolframite WO3Grade 62.93%, the rate of recovery 69.67%, cassiterite concentrate Sn grades 41.03%, the rate of recovery
58.86%, cassiterite time concentrate Sn grade 11.24%, the rate of recovery 8.57%, cassiterite concentrate overall recovery 67.43%.
Embodiment 7：
A kind of particulate tungsten tin intergrowth mineral ore-dressing technique, is comprised the following steps that：
（1）By Quartz Vein Type tungsten tin intergrowth mineral broken with caused secondary slime part in grinding process or containing polymetallic ore
Mine tailing partial crushing to granularity after Flotation of Sulfide Ores is less than 0.03mm；
（2）Gravity treatment is enriched with：Gravity treatment is carried out using spiral chute and throws tail, it is 82% that gangue, which throws tail amount,；
（3）Reverse flotation desulfurizing：One roughing, pulp density 25%, activator use mass concentration to be used for 5% sulfuric acid solution
Measure and use mass concentration for 200g/t, pH=5.2, collecting agent as 5% butylamine black powder solution, dosage 40g/t, foaming agent uses
Mass concentration be 5% pine camphor oil solution, dosage 20g/t, flotation time 4 minutes；Once purging selection, pulp density 15%, activation
Agent uses mass concentration as 5% sulfuric acid solution, dosage 200g/t, pH=5.2, collecting agent use mass concentration for 5% butylamine
Black powder solution, dosage 40g/t, foaming agent use mass concentration to divide for 5% pine camphor oil solution, dosage 20g/t, flotation time 3
Clock；
（4）Counterfloatating desiliconization：One roughing, pulp density 15%, regulator are the sodium carbonate liquor that mass concentration is 5%
200g/t, the starch solution 75g/t that mass concentration is 5%, collecting agent is the lauryl amine solution and mass concentration that mass concentration is 5%
For the mixed solution of 5% octadecylamine solution, dosage 40g/t, the mass ratio of lauryl amine solution and octadecylamine solution is 1:1, float
Select the time 3.5 minutes；Scan I, pulp density 10%, regulator be mass concentration be 5% sodium carbonate liquor 100g/t, quality
Concentration is 5% starch solution 35g/t, and collecting agent is the lauryl amine solution that mass concentration is 5% and mass concentration is 5% 18
The mass ratio of the mixed solution of amine aqueous solution, dosage 20g/t, lauryl amine solution and octadecylamine solution is 1:1, flotation time 2 divides
Clock；Scan II, pulp density 10%, regulator be mass concentration be 5% sodium carbonate liquor 100g/t, mass concentration be 5%
Starch solution 40g/t, the octadecylamine solution that collecting agent is the lauryl amine solution that mass concentration is 5% and mass concentration is 5% mix
The mass ratio of conjunction solution, dosage 20g/t, lauryl amine solution and octadecylamine solution is 1:1, flotation time 2 minutes；
（5）Magnetic separation separates tungsten tin mine：Magnet separator magnetic field intensity is 800KA/m, and magnetic concentrate is wolframite, and magnetic tailing is cassiterite
Concentrate.
Final wolframite WO3Grade 63.20%, the rate of recovery 70.14%, cassiterite concentrate Sn grades 41.58%, the rate of recovery
59.33%, cassiterite time concentrate Sn grade 11.59%, the rate of recovery 8.96%, cassiterite concentrate overall recovery 68.29%.
Embodiment 8：
A kind of particulate tungsten tin intergrowth mineral ore-dressing technique, is comprised the following steps that：
（1）By Quartz Vein Type tungsten tin intergrowth mineral broken with caused secondary slime part in grinding process or containing polymetallic ore
Mine tailing partial crushing to granularity after Flotation of Sulfide Ores is less than 0.03mm；
（2）Gravity treatment is enriched with：Gravity treatment is carried out using shaking table and centrifugal ore separator and throws tail, it is 85% that gangue, which throws tail amount,；
（3）Reverse flotation desulfurizing：One roughing, pulp density 24%, activator use mass concentration to be used for 5% sulfuric acid solution
Measure as 250g/t, pH=5, collecting agent uses mass concentration, and for 2% butyl xanthate solution, dosage 50g/t, foaming agent uses matter
Measure the pine camphor oil solution that concentration is 3%, dosage 25g/t, flotation time 4 minutes；Once purging selection, pulp density 15%, activator
Mass concentration is used as 5% sulfuric acid solution, dosage 250g/t, pH=5, collecting agent use mass concentration for 2% butyl xanthate
Solution, dosage 50g/t, foaming agent use mass concentration as 3% pine camphor oil solution, dosage 25g/t, flotation time 3 minutes；
（4）Counterfloatating desiliconization：One roughing, pulp density 14%, regulator are the sodium carbonate liquor that mass concentration is 5%
200g/t, mass concentration be 4% starch solution 100g/t, collecting agent be mass concentration be 4% lauryl amine solution, mass concentration
The mixed solution for the ether amines solution that octadecylamine solution and mass concentration for 4% are 4%, dosage 40g/t, ether amines solution, 12
The mass ratio of amine aqueous solution and octadecylamine solution is 1:1:1, flotation time 4 minutes；Scan I, pulp density 10%, regulator is
The starch solution 50g/t that sodium carbonate liquor 150g/t that mass concentration is 5%, mass concentration are 3%, collecting agent is that mass concentration is
The mixed solution for the ether amines solution that the octadecylamine solution and mass concentration that 4% lauryl amine solution, mass concentration are 4% are 4%, is used
Measure as 30g/t, the mass ratio of ether amines solution, lauryl amine solution and octadecylamine solution is 1:1:1, flotation time 2 minutes；Scan
II, pulp density 10%, regulator be mass concentration be 5% sodium carbonate liquor 150g/t, mass concentration be 3% starch it is molten
Liquid 50g/t, collecting agent be mass concentration be 4% lauryl amine solution, mass concentration be 4% octadecylamine solution and mass concentration be
The mixed solution of 4% ether amines solution, dosage 30g/t, the mass ratio of ether amines solution, lauryl amine solution and octadecylamine solution are
1:1:1, flotation time 2 minutes；
（5）Magnetic separation separates tungsten tin mine：Magnet separator magnetic field intensity is 900KA/m, and magnetic concentrate is wolframite, and magnetic tailing is cassiterite
Concentrate.
Final wolframite WO3Grade 63.54%, the rate of recovery 70.73%, cassiterite concentrate Sn grades 42.00%, the rate of recovery
59.74%, cassiterite time concentrate Sn grade 11.98%, the rate of recovery 9.23%, cassiterite concentrate overall recovery 68.97%.
Experimental example 1：Quartz Vein Type tungsten tin mine fine fraction reclaims
Main valuable mineral is wolframite and cassiterite in the ore, and scheelite content is micro.Main gangue mineral is quartz and cloud
It is female（Including muscovite, biotite and sericite）, both account for the 92% of mineral total amount, and other mineralogical composition contents are little.The ore deposit
Fineness is below -200 mesh, essentially from caused secondary slime, wherein WO in broken grinding process3Grade is 0.744%,
Sn grades 0.29%, S grades 0.009%., can not reverse flotation sulphur because sulfur content is relatively low.
Step 1：Tail is thrown in gravity treatment, first using table concentration, obtains shaking table rough concentrate, shaking table mine tailing uses Nelson's ore dressing
Machine selects again, and sorting number is one roughing, is scanned three times, and shaking table rough concentrate, Nelson's rough concentrate, Nelson scan rough concentrate conjunction
And mix and carry out Counterfloatating desiliconization as rough concentrate.
Step 2：Counterfloatating desiliconization, one roughing, once purging selection, during roughing, pulp density 15%, regulator sodium carbonate
125g/t, inhibitor starch 50g/t, collecting agent ether amines class 100g/t, flotation time 4 minutes, it is 12% to scan pulp density, is adjusted
Whole dose of sodium carbonate 40g/t, inhibitor starch 15g/t, collecting agent ether amines class 30g/t, flotation time 2.5 minutes.
Step 3：Magnetic separation, using pulsating high gradient magnetic separator with vertical ring, roughing magnetic field intensity 700KA/m, 50r/min of pulsing,
Obtain magnetic tailing（Cassiterite concentrate）, selected magnetic field intensity 600KA/m, 50r/min of pulsing, obtain magnetic concentrate（Wolframite）
And magnetic middling ore（Cassiterite time concentrate）.
Result of the test is shown in Table 1, final wolframite WO3Grade 63.41%, the rate of recovery 70.12%, cassiterite concentrate Sn grades
41.05%, the rate of recovery 60.68%, cassiterite time concentrate Sn grades 11.21%, the rate of recovery 8.47%, cassiterite concentrate overall recovery
69.15%。
Experimental example 2：Tungsten tin mine is reclaimed in copper zinc ore mine tailing
Tungsten tin mine is reclaimed from certain copper zinc ore mine tailing, ore mog is that -200 mesh contents account for 50%, WO3：0.32%, Sn：
0.076%, Cu：0.024%, Pb：0.013%, Zn：0.097%, Au：0.30g/t, Ag：8.06g/t As：7.12%, S：6.76%,
SiO2：48.83%, Al2O3：9.33%.Mine tailing WO3Grade is 0.32%, and grade is higher, Sn grades 0.076%, can be comprehensively utilized
Recovery.Containing sulfur minerals are mainly pyrite, magnetic iron ore, mispickel etc., and gangue mineral is mainly quartz and feldspar.
Step 1：Table concentration throws tail, and shaking table mine tailing 70% or so, shaking table chats 5.5% or so, shaking table chats can return to again
Choosing, or independent gravity treatment.
Step 2：Reverse flotation desulfurizing, reverse flotation desulfurizing roughing, floatation concentration 25%, sulfuric acid dosage 500g/t, pH5 ~ 6,
Collecting agent butyl xanthate 18g/t, foaming agent terpenic oil 9g/t, flotation time 4 minutes, reverse flotation desulfurizing is scanned, floatation concentration
15%, sulfuric acid dosage 100g/t, pH5 ~ 6, collecting agent butyl xanthate 6g/t, foaming agent terpenic oil 5g/t, flotation time 2 minutes.
Step 3：Counterfloatating desiliconization, roughing, floatation concentration 12%, inhibitor starch 20g/t, collecting agent ether amines class 20g/t,
Flotation time 3 minutes, is scanned, floatation concentration 10%, collecting agent ether amines class 10g/t, flotation time 1.5 minutes.
Step 4：Magnetic separation, using pulsating high gradient magnetic separator with vertical ring, roughing magnetic field intensity 600KA/m, 50r/min of pulsing,
Magnetic tailing is obtained, selected magnetic field intensity 520KA/m, 50r/min of pulsing, obtains magnetic concentrate and magnetic middling ore.
Result of the test is shown in Table 2, final wolframite WO3Grade 64.72%, the rate of recovery 85.21%, cassiterite concentrate Sn grades
24.90%, the rate of recovery 66.74%, cassiterite time concentrate Sn grades 13.98%, the rate of recovery 6.15%, cassiterite concentrate overall recovery
72.89%。
Above-described is only the preferred embodiment of the present invention, it is noted that for those skilled in the art,
Under the premise of general idea of the present invention is not departed from, some changes and improvements can also be made, these should also be considered as the present invention's
Protection domain.
Claims (2)
- A kind of 1. particulate tungsten tin intergrowth mineral ore-dressing technique, it is characterised in that：Comprise the following steps that：（1）By Quartz Vein Type tungsten tin intergrowth mineral broken with caused secondary slime part in grinding process or containing polymetallic ore Mine tailing partial crushing to granularity after Flotation of Sulfide Ores is less than 0.03mm；（2）Gravity treatment is enriched with：Using shaking table, centrifugal ore separator, Knelson concentrator, Fa Erken ore separators, hydrocyclone, spiral Tail is thrown in chute at least one progress gravity treatment therein, and gangue throws tail amount in 60%-85%；（3）Counterfloatating desiliconization：Regulator is sodium carbonate liquor 20-500g/t, the mass concentration 1-5% that mass concentration is 1-5% Starch solution 10-200g/t, collecting agent be mass concentration be 1-5% ether amines solution, mass concentration be 1-5% lauryl amine it is molten Liquid, the octadecylamine solution one or more therein that mass concentration is 1-5%, dosage 1-100g/t, flotation number are 1-3 times；（4）Magnetic separation separates tungsten tin mine：Magnet separator magnetic field intensity is 400KA/m-900KA/m, and magnetic concentrate is wolframite, magnetic separation tail Ore deposit is cassiterite concentrate.
- 2. particulate tungsten tin intergrowth mineral ore-dressing technique according to claim 1, it is characterised in that：In step（3）Advance Row reverse flotation desulfurizing step, it is specially：It for 1-5% sulfuric acid solution or mass concentration is 1-5%'s that activator, which uses mass concentration, Copper-bath, dosage 10-500g/t, collecting agent use the mass concentration to be for 1-5% butyl xanthate solution or mass concentration 1-5% butylamine black powder solution, dosage 1-100g/t, foaming agent use pine camphor oil solution or quality of the mass concentration for 1-5% Concentration is 1-5% methyl isobutyl carbinol（MIBC）Solution usage 1-50g/t, flotation number are 1-2 times.
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