CN101797534B - Method for desulphurizing cassiterite polymetallic sulphide ore tailing by flotation step by step - Google Patents
Method for desulphurizing cassiterite polymetallic sulphide ore tailing by flotation step by step Download PDFInfo
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- CN101797534B CN101797534B CN 201010102296 CN201010102296A CN101797534B CN 101797534 B CN101797534 B CN 101797534B CN 201010102296 CN201010102296 CN 201010102296 CN 201010102296 A CN201010102296 A CN 201010102296A CN 101797534 B CN101797534 B CN 101797534B
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Abstract
The invention relates to a method for desulphurizing cassiterite polymetallic sulphide ore tailing by flotation step by step. In the method, sulphide ore is removed step by step by using the flotability difference of sulphide ore. The method comprises the following steps: firstly, performing flotation on the sulphide ore with high flotability; secondly, upgrading the flotation tailing into a cassiterite sulphide ore mixed rough concentrate by using a table; and adding depressor sodium silicate, activator sodium sulfide and collecting agent yellow catching agent into the cassiterite sulphide ore mixed rough concentrate for strengthening the flotation. By using the method, the sulphide ore in the cassiterite can be removed effectively, beneficiation reagent cost is reduced and beneficiation economic benefit is improved.
Description
One, technical field
The present invention relates to contain in a kind of desulfurization of cassiterite polymetallic sulphide ore the substep method for floating, particularly a kind of mine tailing the substep desulfurization method for floating of low-grade cassiterite and sulphide ore.
Two, background technology
In containing the mine tailing of cassiterite polymetallic sulphide ore, because it is inhomogeneous that mineral granularity is formed, valuable mineral is many to be existed with particulate and microfine, in the process of sorting, influence each other easily, as taking away more coarsely graded sulphide ore in the table concentration tin process, cause sulphide ore to be lost in the cassiterite concentrate, if adopt complete floating sulphide ore to reclaim cassiterite again, because oxidation takes place surface, partial vulcanization ore deposit, then required medicament kind is many and reagent consumption is big, particulate cassiterite forms being mingled with of tin inevitably in the floatation process of sulphide ore like this, cause tin to run off, in addition, owing to passed through the ore grinding processing, form the argillization phenomenon aborning easily, thereby influence sorting result.
Three, summary of the invention
The object of the present invention is to provide a kind of desulphurizing cassiterite polymetallic sulphide ore tailing by flotation step by step method, it can remove the sulphide ore content in the cassiterite effectively, improves the tin rate of recovery, reduces the beneficiation reagent cost, improves the ore dressing economic benefit.
The present invention achieves the above object by the following technical solutions: a kind of desulphurizing cassiterite polymetallic sulphide ore tailing by flotation step by step method comprises the steps:
1.1 earlier to floatability preferably sulphide ore carry out flotation, slurry pH is 7 during flotation, adds butyl xanthate and 2 then
#Oil reclaims dosing to the good sulphide ore of floatability: butyl xanthate 200～300g/t, 2
#Oil 80～100g/t,
1.2 be 18～22 millimeters by the shaking table stroke, the shaking table jig frequency is 250～270 times/minute, is cassiterite sulphide ore mixed crude concentrate with flotation tailing by the shaking table enrichment,
Strengthen flotation 1.3 in described cassiterite sulphide ore mixed crude concentrate, add inhibitor waterglass, activator vulcanized sodium and collecting agent amyl group xanthate, be 7～9 with slurry pH during flotation, strengthen the floating agent consumption: waterglass 300～600g/t, vulcanized sodium 2000～3000g/t, 2
#Oil 120～150g/t, amyl group xanthate 300～500g/t,
During use, described medicament is mixed with following concentration expressed in percentage by weight earlier:
Outstanding advantage of the present invention is:
1, to floatability preferably sulphide ore carry out flotation and reduced cassiterite and be mingled with, avoided the inaction of cassiterite to run off.
2, in described cassiterite sulphide ore mixed crude concentrate, add inhibitor, activator and collecting agent and carry out the sulphide ore of surface oxidation is strengthened collecting, reduced medicament kind and quantity, reduced the floating agent cost.
3, effectively realized containing the oxygen mineral and contained separating of sulfur mineral, provided the foundation for obtaining high-grade cassiterite concentrate; Also guaranteed simultaneously the recovery of sulphide ore.
Four, description of drawings
Fig. 1 is the principle flow chart of desulphurizing cassiterite polymetallic sulphide ore tailing by flotation step by step method of the present invention.
The specific embodiment
Below by specific embodiment technical scheme of the present invention is described further.
Embodiment 1
Raw mineral materials:
Raw materials used is the mine tailing that contains low-grade cassiterite and sulphide ore, wherein contains Sn0.54%, Pb0.47%, Zn2.10%, Sb0.38%, reclaims mineral in the described mine tailing and is mainly cassiterite, jamesonite, marmatite etc.
With the substep desulfurization flotation as follows of above-mentioned raw mineral materials:
1.1 earlier to floatability preferably sulphide ore carry out flotation, slurry pH is 7 during flotation, adds butyl xanthate and 2 then
#Oil reclaims dosing to the good sulphide ore of floatability: butyl xanthate 200g/t, 2
#Oil 80g/t, butyl xanthate is mixed with the 1wt% aqueous solution, 2 earlier
#Oil directly stoste adds.
Flotation must contain the sulphide ore bulk concentrate of Sn0.20%, Pb2.67%, Sb2.33%, Zn16.04%, and the rate of recovery of tin, lead, antimony, zinc is respectively Sn9.57%, Pb59.25%, Sb60.80%, Zn64.70%;
1.2 be 18 millimeters by the shaking table stroke, the shaking table jig frequency is 250 times/minute, is cassiterite sulphide ore mixed crude concentrate with flotation tailing by the shaking table enrichment,
Mine tailing is by getting the stanniferous mixed crude concentrate of Sn1.76%, Pb0.68%, Sb0.63%, Zn2.35% behind the shaking table.
Strengthen flotation 1.3 in described cassiterite sulphide ore mixed crude concentrate, add inhibitor waterglass, activator vulcanized sodium and collecting agent amyl group xanthate, be 7 with slurry pH during flotation, strengthen the floating agent consumption and be: waterglass 300g/t, vulcanized sodium 2000g/t, amyl group xanthate 300g/t, 2
#Oil 120g/t.During use, described medicament is mixed with following concentration expressed in percentage by weight earlier:
The rate of recovery of strengthening flotation tin, lead, antimony, zinc is respectively Sn21.41%, Pb78.2%, Sb80.72%, Zn81.47%, and the overall recovery of lead, antimony, zinc is respectively 91.11%, 92.44%, 93.78%.
Embodiment 2
Raw mineral materials:
Raw materials used is the mine tailing that contains low-grade cassiterite and sulphide ore, wherein contains Sn0.60%, Pb0.50%, Zn2.35%, Sb0.45%, reclaims mineral in the described mine tailing and is mainly cassiterite, jamesonite, marmatite etc.
With the substep desulfurization flotation as follows of above-mentioned raw mineral materials:
1.1 earlier to floatability preferably sulphide ore carry out flotation, slurry pH is 7 during flotation, adds butyl xanthate and 2 then
#Oil reclaims dosing to the good sulphide ore of floatability: butyl xanthate 300g/t, 2
#Oil 100g/t.
Butyl xanthate is mixed with the 2wt% aqueous solution, 2 earlier
#Oil directly stoste adds.
Flotation obtains containing the sulphide ore bulk concentrate of Sn0.20%, Pb2.87%, Sb2.56%, Zn16.53%, and the rate of recovery of tin, lead, antimony, zinc is respectively Sn9.67%, Pb61.03%, Sb61.52%, Zn65.67%;
1.2 be 22 millimeters by the shaking table stroke, the shaking table jig frequency is 270 times/minute, is cassiterite sulphide ore mixed crude concentrate with flotation tailing by the shaking table enrichment,
Mine tailing is by getting the stanniferous mixed crude concentrate of Sn1.80%, Pb0.74%, Sb0.71%, Zn2.53% behind the shaking table.
Strengthen flotation 1.3 in described cassiterite sulphide ore mixed crude concentrate, add inhibitor waterglass, activator vulcanized sodium and collecting agent amyl group xanthate, slurry pH is 9 during flotation, strengthens the floating agent consumption: waterglass 600g/t, vulcanized sodium 3000g/t, amyl group xanthate 500g/t, 2
#Oil 150g/t.During use, described medicament is mixed with following concentration expressed in percentage by weight earlier:
The rate of recovery of strengthening flotation tin, lead, antimony, zinc is respectively Sn22.37%, Pb79.51%, Sb81.63%, Zn82.15%, and total recovery of lead, antimony, zinc is respectively 92.02%, 92.93%, 93.87%.
Embodiment 3
Raw mineral materials:
Raw materials used is the mine tailing that contains low-grade cassiterite and sulphide ore, wherein contains Sn0.57%, Pb0.48%, Zn2.21%, Sb0.41%, reclaims mineral in the described mine tailing and is mainly cassiterite, jamesonite, marmatite etc.
With the substep desulfurization flotation as follows of above-mentioned raw mineral materials:
1.1 earlier to floatability preferably sulphide ore carry out flotation, slurry pH is 7 during flotation, adds butyl xanthate and 2 then
#Oil reclaims dosing to the good sulphide ore of floatability: butyl xanthate 250g/t, 2
#Oil 90g/t, butyl xanthate is mixed with the 1wt% aqueous solution, 2 earlier
#Oil directly stoste adds.
Flotation must contain the sulphide ore bulk concentrate of Sn0.20%, Pb2.75%, Sb2.51%, Zn16.37%, and the rate of recovery of tin, lead, antimony, zinc is respectively Sn9.61%, Pb60.17%, Sb61.03%, Zn64.92%;
1.2 be 20 millimeters by the shaking table stroke, the shaking table jig frequency is 260 times/minute, is cassiterite sulphide ore mixed crude concentrate with flotation tailing by the shaking table enrichment,
Mine tailing is by getting the stanniferous mixed crude concentrate of Sn1.77%, Pb0.70%, Sb0.67%, Zn2.42% behind the shaking table.
Strengthen flotation 1.3 in described cassiterite sulphide ore mixed crude concentrate, add inhibitor waterglass, activator vulcanized sodium and collecting agent amyl group xanthate, slurry pH is 8 during flotation, strengthens the floating agent consumption to be: waterglass 500g/t, vulcanized sodium 2500g/t, amyl group xanthate 400g/t, 2
#Oil 130g/t.During use, described medicament is mixed with following concentration expressed in percentage by weight earlier:
The rate of recovery of strengthening flotation tin, lead, antimony, zinc is respectively Sn22.05%, Pb78.72%, Sb80.93%, Zn81.85%, and the overall recovery of lead, antimony, zinc is respectively 91.52%, 92.57%, 93.63%.
Claims (1)
1. the desulphurizing cassiterite polymetallic sulphide ore tailing by flotation step by step method is characterized in that, this method comprises the steps:
1.1 earlier to floatability preferably sulphide ore carry out flotation, slurry pH is 7 during flotation, adds butyl xanthate and 2 then
#Oil reclaims dosing to the good sulphide ore of floatability: butyl xanthate 200～300g/t, 2
#Oil 80～100g/t,
1.2 be 18～22 millimeters by the shaking table stroke, the shaking table jig frequency is 250～270 times/minute, is cassiterite sulphide ore mixed crude concentrate with flotation tailing by the shaking table enrichment,
Strengthening flotation 1.3 add inhibitor waterglass, activator vulcanized sodium and collecting agent amyl group xanthate in described cassiterite sulphide ore mixed crude concentrate, is 7～9 with slurry pH during flotation,
Strengthen the floating agent consumption: waterglass 300～600g/t, vulcanized sodium 2000～3000g/t, 2
#Oil 120～150g/t, amyl group xanthate 300～500g/t,
During use, described medicament is mixed with following concentration expressed in percentage by weight earlier:
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102441491A (en) * | 2011-09-02 | 2012-05-09 | 中南大学 | Gradient flotation method for low-activity pyrites |
| CN102441493A (en) * | 2011-10-01 | 2012-05-09 | 张明达 | High-efficient environment-friendly citric acid desulfuration method for tin middling mine |
| CN104190527B (en) * | 2014-07-16 | 2016-08-17 | 江西稀有稀土金属钨业集团有限公司 | The low-grade wolframite of a kind of sulfur-bearing or the selecting system of low-grade Tin concentrate |
| CN104492608B (en) * | 2014-11-21 | 2017-01-25 | 广西大学 | Floatation separation method of micro-fine-particle cassiterite and quartz |
| CN107890946B (en) * | 2017-09-29 | 2019-07-16 | 昆明理工大学 | A kind of beneficiation method of micro fine particle |
| CN111375494A (en) * | 2020-03-31 | 2020-07-07 | 广西民族大学 | Low-grade fine tin ore biological collector and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4213942A (en) * | 1978-01-23 | 1980-07-22 | Groupe Minier Sullivan Ltee/Sullivan Mining Group Ltd. | Process for the concentration of mineral by flotation process |
| DD258573A1 (en) * | 1985-11-07 | 1988-07-27 | Akad Wissenschaften Ddr | PROCESS FOR OBTAINING MOLYBDAENITE CONCENTRATE |
| CN1680042A (en) * | 2004-04-05 | 2005-10-12 | 黎东明 | Step-by-step flotation technology for tin-lead-zinc sulfide ore |
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2010
- 2010-01-28 CN CN 201010102296 patent/CN101797534B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4213942A (en) * | 1978-01-23 | 1980-07-22 | Groupe Minier Sullivan Ltee/Sullivan Mining Group Ltd. | Process for the concentration of mineral by flotation process |
| DD258573A1 (en) * | 1985-11-07 | 1988-07-27 | Akad Wissenschaften Ddr | PROCESS FOR OBTAINING MOLYBDAENITE CONCENTRATE |
| CN1680042A (en) * | 2004-04-05 | 2005-10-12 | 黎东明 | Step-by-step flotation technology for tin-lead-zinc sulfide ore |
Non-Patent Citations (3)
| Title |
|---|
| JP特开2006-150196A 2006.06.15 |
| 杨奕旗，张俞明，邬清平.大厂锡石多金属硫化矿选矿技术现状及发展方向.《国外金属矿选矿》.1998,(第4期), * |
| 马士强.大厂锡石-硫化矿选矿工艺流程评述.《采矿技术》.1998,(第8期), * |
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Inventor after: Wei Zongwu Inventor after: Chen Jianhua Inventor after: Zhou Deyan Inventor after: Mu Xiao Inventor after: Chen Ye Inventor before: Chen Jianhua Inventor before: Wei Zongwu Inventor before: Zhou Deyan Inventor before: Mu Xiao Inventor before: Chen Ye |
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