CN103816989B - A kind of Tin concentrate arsenic removal, the ore-dressing technique of sulfur - Google Patents
A kind of Tin concentrate arsenic removal, the ore-dressing technique of sulfur Download PDFInfo
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- CN103816989B CN103816989B CN201410053775.5A CN201410053775A CN103816989B CN 103816989 B CN103816989 B CN 103816989B CN 201410053775 A CN201410053775 A CN 201410053775A CN 103816989 B CN103816989 B CN 103816989B
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Abstract
A kind of Tin concentrate arsenic removal, the ore-dressing technique of sulfur.The invention belongs to ore-dressing technique method, be specifically related to a kind of method using ore dressing and remove the ore-dressing technique of arsenic in Tin concentrate, sulfur specially.This method is, 1. for the Tin concentrate exceeded standard containing arsenic, sulfur-bearing, utilizes flotation open circuit to remove the sulfur arsenic concentrate of stanniferous relatively low (less than 0.8%)；2. the chats to flotation utilizes gravity treatment to reclaim the stannum carried secretly in flotation froth；3. flotation tailing is sieved, by more difficult for flotation emersion >=0.2mm coarse granule arsenic, sulfur mineral with oversize form remove.The present invention can efficiently control stannum loss problem in sulfide, while improving the Tin concentrate stannum response rate, hence it is evident that reduce the content of the arsenic impurities in Tin concentrate, sulfur, alleviates stannum and smelts and the pressure of efforts at environmental protection.
Description
Technical field
The invention belongs to ore-dressing technique method, be specifically related to a kind of ore-dressing technique using beneficiation method to remove arsenic in Tin concentrate, sulfur specially.
Background technology
Arsenic, sulfur content in Tin concentrate are relatively big on smelting and the efforts at environmental protection impact thereof of stannum, therefore tighter to the content requirement of arsenic, sulfur in Tin concentrate.To this end, the applicant's unit has the most just built up Tin concentrate boiling roaster arsenic removal, sulfur refining preprocessing system.Owing to Ore is the leanest, thin, miscellaneous, difficult, arsenic in the Tin concentrate of factory's output, sulfur is selected to exceed standard the most serious, one is to cause stannum to be smelted and the pressure of efforts at environmental protection is increasing, and two is owing to the arsenic in Tin concentrate, sulfur content exceed standard and imposed a fine, and have impact on the economic benefit selecting factory.Smelt and the pressure of efforts at environmental protection to alleviate stannum, increase the economic benefit selecting factory, Tin concentrate should be before delivering smeltery, the method as far as possible using ore dressing reduces the arsenic in Tin concentrate, sulfur content, alleviate stannum to smelt and the pressure of efforts at environmental protection, reducing tin smelter and make the probability to environment, reduce choosing, smelting integrated cost that stannum produces, the problem exceeded standard from source solution Tin concentrate arsenic, sulfur is significant.
From the point of view of theoretically, Tin concentrate flotation sulphide removal (arsenic, sulfur mineral) is easy, but difficulty is the loss during removing sulfide of the control stannum.The prior art being currently known also does not has a kind of ideal method to solve this problem.
Summary of the invention
The purpose of the present invention is aiming at the problems referred to above and proposes a kind of Tin concentrate arsenic removal, the technique of sulfur ore dressing, this technique can efficiently control stannum loss problem in sulfide, while improving the Tin concentrate stannum response rate, significantly reduce the content of the arsenic impurities in Tin concentrate, sulfur, alleviate stannum and smelt and the pressure of efforts at environmental protection.
The above-mentioned purpose of the present invention is realized by following means:
1. for the Tin concentrate exceeded standard containing arsenic, sulfur-bearing, flotation open circuit is utilized to remove the stanniferous sulfur arsenic concentrate less than 0.8wt%；
2. the chats to flotation utilizes gravity treatment to reclaim the stannum carried secretly in flotation froth；
3. flotation tailing is sieved, by more difficult for flotation emersion >=0.2mm coarse granule arsenic, sulfur mineral with oversize form remove.
The 2. described gravity treatment of step is tabling.
When after Tin concentrate arsenic removal, sulfur obtain Tin concentrate occur that arsenic, sulfur exceed standard time, should increase arsenic removal, sulfur flotation scan number of times to more than 2 times.
When shaking table mine tailing stanniferous >=8% time, increase shaking table select number of times to more than 2 times again.
The interruption less for production scale produces, and should first be stored up by the chats product of the oversize of screening with shaking table, accumulates to time a certain amount of, and residue enters back into the arsenic removal of this Tin concentrate after ore grinding, sulfur ore-dressing technique processes.
Tin concentrate flotation sulphide removal (arsenic, sulfur mineral) is easy, and difficulty is to control stannum loss in sulfide.The present invention uses gravity treatment to reclaim the stannum carried secretly in flotation froth, makes this contradiction have been resolved, has efficiently controlled stannum loss problem in sulfide.The process characteristic of the present invention is to use the combined mineral dressing technology of the compositions such as flotation, gravity treatment, screening to reduce the arsenic in Tin concentrate, sulfur content, and its process structure is simple and convenient to operate, and easily realizes.The stanniferous relatively low sulfur arsenic concentrate of flotation output, open circuit is utilized to remove the arsenic of majority, sulfur mineral；Utilize gravity treatment to reclaim the stannum carried secretly in flotation froth the chats of flotation, improve the stannum response rate of Tin concentrate as far as possible；The method sieving the Tailings utilization of flotation removes the coarse granule arsenic of the most difficult emersion, sulfur mineral, reduces the arsenic in Tin concentrate, sulfur content as far as possible.
The method arsenic removal of above-mentioned high-As and high-S Tin concentrate ore dressing of the present invention, sulfur, compared with the conventional method arsenic removal with smelting, sulfur, use the method arsenic removal of ore dressing, sulfur, not only have preferable economic benefit, and have preferable social benefit.High-As and high-S Tin concentrate for experimental study, 100 tons are often processed by the method for ore dressing, not only can obtain economic benefit 61771 yuan more, can also reduce by the arsenic of 64.26% and the sulfur of 66.19% enters smelting process, significantly reduce stannum to smelt and the pressure of efforts at environmental protection, decrease tin smelter and make the probability to environment, reduce choosing, smelting integrated cost that stannum produces.Beneficiation method arsenic removal, sulfur are compared with smelting process arsenic removal, sulfur, and the processing cost of beneficiation method is low, it is most important that beneficiation method is the least on the impact of environment.
Detailed description of the invention
Embodiment: example below is by the above-mentioned process of the present invention, processes applicant's unit batch Tin concentrate actual effect.
This batch Tin concentrate is stanniferous 42.43%, containing arsenic 5.37%, sulfur-bearing 8.86%, belong to the high-As and high-S Tin concentrate exceeded standard containing arsenic, sulfur-bearing, after processing with Tin concentrate arsenic removal, sulfur beneficiation new process, open circuit removes the sulfur arsenic concentrate that productivity is 18.48%, sulfur arsenic concentrate is stanniferous 0.758%, containing arsenic 18.67%, sulfur-bearing 31.73%, stannum loss rate is 0.33%, and arsenic removal efficiency is 64.26%, and desulphurizing ratio is 66.19%；Obtaining productivity is the Tin concentrate of 74.24%, and Tin concentrate is stanniferous 56.34%, containing arsenic 1.21%, sulfur-bearing 1.48%, and the stannum response rate is 98.57%；Also obtaining the stannum richness chats that productivity is 7.28%, stannum richness chats is stanniferous 6.41%, containing arsenic 13.98%, sulfur-bearing 26.09%, and the stannum response rate is 1.10%.
Claims (5)
1. a Tin concentrate arsenic removal, the ore-dressing technique of sulfur, it is characterised in that:
1. for the Tin concentrate exceeded standard containing arsenic, sulfur-bearing, flotation open circuit is utilized to remove the stanniferous sulfur arsenic concentrate less than 0.8wt%；
2. the chats to flotation utilizes gravity treatment to reclaim the stannum carried secretly in flotation froth；
3. flotation tailing is sieved, by more difficult for flotation emersion >=0.2mm coarse granule arsenic, sulfur mineral with oversize form remove.
Tin concentrate arsenic removal the most according to claim 1, the ore-dressing technique of sulfur, it is characterised in that: the 2. described gravity treatment of step is tabling.
Tin concentrate arsenic removal the most according to claim 1, the ore-dressing technique of sulfur, it is characterised in that: when after Tin concentrate arsenic removal, sulfur obtain Tin concentrate occur that arsenic, sulfur exceed standard time, should increase arsenic removal, sulfur flotation scan number of times to more than 2 times.
Tin concentrate arsenic removal the most according to claim 2, the ore-dressing technique of sulfur, it is characterised in that: when shaking table mine tailing stanniferous >=8% time, increase shaking table select number of times to more than 2 times again.
Tin concentrate arsenic removal the most according to claim 2, the ore-dressing technique of sulfur, it is characterized in that: the interruption less for production scale produces, should first be stored up by the chats product of the oversize of screening with shaking table, residue enters back into the arsenic removal of this Tin concentrate after ore grinding, sulfur ore-dressing technique processes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410053775.5A CN103816989B (en) | 2014-02-18 | 2014-02-18 | A kind of Tin concentrate arsenic removal, the ore-dressing technique of sulfur |
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| CN201410053775.5A CN103816989B (en) | 2014-02-18 | 2014-02-18 | A kind of Tin concentrate arsenic removal, the ore-dressing technique of sulfur |
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| CN103816989A CN103816989A (en) | 2014-05-28 |
| CN103816989B true CN103816989B (en) | 2016-08-17 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106801141A (en) * | 2017-03-24 | 2017-06-06 | 南昌专腾科技有限公司 | A kind of Tin concentrate ore-sorting system and technique for removing arsenic removal and sulphur |
| CN106811593A (en) * | 2017-03-24 | 2017-06-09 | 南昌专腾科技有限公司 | A kind of Tin concentrate ore-sorting system and technique |
Citations (7)
| 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 |
| CN1073375A (en) * | 1992-08-31 | 1993-06-23 | 黎东明 | Technological route for non-suppression dressing of cassiterite and multi-metal sulfide ore |
| CN1799698A (en) * | 2006-01-09 | 2006-07-12 | 昆明理工大学 | Method for reclaiming valuable mineral from concentrated tailings of stannum-contained multi-metal sulphide ore |
| CN101792867A (en) * | 2009-11-16 | 2010-08-04 | 云南锡业集团（控股）有限责任公司 | Combined flow treatment method of tin rough concentrate |
| CN101920222A (en) * | 2010-08-19 | 2010-12-22 | 云南锡业集团（控股）有限责任公司 | Improved method for cleaning tin rough concentrate |
| CN102872970A (en) * | 2012-10-29 | 2013-01-16 | 云南华联锌铟股份有限公司 | Process for improving quality and reducing impurities of tin stone multi-metal sulfide ore tin ore concentrate and combined equipment |
| CN103433122A (en) * | 2013-09-12 | 2013-12-11 | 广西华锡集团股份有限公司车河选矿厂 | Quality-separating, grading and sorting process for tin middlings |
-
2014
- 2014-02-18 CN CN201410053775.5A patent/CN103816989B/en active Active
Patent Citations (7)
| 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 |
| CN1073375A (en) * | 1992-08-31 | 1993-06-23 | 黎东明 | Technological route for non-suppression dressing of cassiterite and multi-metal sulfide ore |
| CN1799698A (en) * | 2006-01-09 | 2006-07-12 | 昆明理工大学 | Method for reclaiming valuable mineral from concentrated tailings of stannum-contained multi-metal sulphide ore |
| CN101792867A (en) * | 2009-11-16 | 2010-08-04 | 云南锡业集团（控股）有限责任公司 | Combined flow treatment method of tin rough concentrate |
| CN101920222A (en) * | 2010-08-19 | 2010-12-22 | 云南锡业集团（控股）有限责任公司 | Improved method for cleaning tin rough concentrate |
| CN102872970A (en) * | 2012-10-29 | 2013-01-16 | 云南华联锌铟股份有限公司 | Process for improving quality and reducing impurities of tin stone multi-metal sulfide ore tin ore concentrate and combined equipment |
| CN103433122A (en) * | 2013-09-12 | 2013-12-11 | 广西华锡集团股份有限公司车河选矿厂 | Quality-separating, grading and sorting process for tin middlings |
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