CN1285417C - Cassiterite ore separation method - Google Patents
Cassiterite ore separation method Download PDFInfo
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- CN1285417C CN1285417C CN 200410045027 CN200410045027A CN1285417C CN 1285417 C CN1285417 C CN 1285417C CN 200410045027 CN200410045027 CN 200410045027 CN 200410045027 A CN200410045027 A CN 200410045027A CN 1285417 C CN1285417 C CN 1285417C
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- cassiterite
- ore
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Abstract
The present invention relates to a cassiterite ore separation method which comprises the following steps of crushing, grinding, grading and the flotation of a fine particle grade part which is less than 0.039mm. The flotation uses the flow paths of two-time roughing, one-time scavenging and three-time reconcentration. Compared with a traditional cassiterite ore separation technique, by selective grinding, the over crushing of cassiterite is avoided, and the content of fine particle cassiterite is greatly reduced; grinding products are graded, a part of cassiterite which is larger than 0.039mm is reselected to be recycled, and the fine particle grade cassiterite which is less than 0.039mm does not need to be deslimed in advance to be directly recycled by a flotation method because tributyl phosphate as grinding medicament is added into the grinding. The cassiterite ore separation method is used for treating cassiterite-quartz type ores containing 0.6 to2.0% of Sn or alluvial tin ores. Sn contained in floatation concentrate is more than 26% and the flotation recovery rate is more than 80%. Compared with a traditional process, the overall recovery rate of tin is improved by more than 10%.
Description
Technical field
The present invention relates to a kind of beneficiation method of cassiterite ore.
Background technology
Cassiterite is the unique common mineral of tin metal, though other tin mineral is proved existence in many mineral deposits, in general they there is no economic worth.Cassiterite-quartz vein type mineral deposit and placer tin mineral deposit are one of main deposit types of China's tin ore, mainly are distributed in provinces such as Yunnan, Guangxi, Guangdong, Hunan.A large amount of primary thin mud is contained in cassiterite-quartz vein type mineral deposit and placer tin mineral deposit; In addition because cassiterite is crisp, thus the ore of stanniferous stone ore thing in the ore dressing processing procedure, during particularly broken, ore grinding, the easy mistake pulverized and produced argillization.For the recovery of coarse grain tin ore, commonly used is gravity separation method at present, but its rate of recovery generally is lower than 80%.For a large amount of micro fine particle, it is too thin to run into the unvanquishable contradiction-granularity of gravity treatment institute in the technology that reclaims cassiterite.Replace traditional gravity separation technology, adopting floatation process is the section of being effective in that effectively reclaims the cassiterite mineral.
For the cassiterite ore, the ore-dressing technique of using is at present: comprise fragmentation, ore grinding, classification, desliming, flotation, detailed process be earlier with ore reduction to certain particle size (being generally) less than 20mm, carry out ore grinding, classification then, after the classification for adopting gravity treatment (being generally shaking table equipment) to reclaim tin, and for the part of fine fraction (less than 0.039mm) greater than the part of 0.039mm, carry out desliming earlier, remove the thin mud less than 0.010mm, adopt method for floating to reclaim again, the tin rate of recovery of whole technical process is less than 75%.
Summary of the invention
In order to improve the FLOTATION SEPARATION efficient of gangues such as cassiterite and quartz in the cassiterite ore, calcite, special proposition the present invention.
The object of the present invention is achieved like this: a kind of beneficiation method of cassiterite ore, comprise fragmentation, ore grinding, classification, soon carry out selective milling less than the cassiterite ore deposit of 20mm at the wet type rod mill through the granularity of fragmentation, ore milling product carries out classification through dusting cover, wherein return ore mill greater than the part of 0.5mm, enter cyclone less than the part of 0.5mm and carry out classification, part greater than 0.039mm after the classification adopts gravity treatment to reclaim cassiterite, add ore grinding medicament tributyl phosphate in grinding process, the tributyl phosphate consumption is 50～100 gram/ton ores;
Also comprise fine fraction flotation partly less than 0.039mm, floatation concentration is 20～30%, adopt roughly select for twice, the flow process of once purging selection, triple cleaning, the mash acid alkalinity of whole floatation process keeps pH 6～8, inhibitor is a waterglass, consumption is 200～260 gram/ton ores, and gangue minerals such as quartz, calcite are suppressed; Collecting agent is the benzene hydroxamic acid, and consumption is 80～100 gram/ton ores, and foaming agent is a terpenic oil, consumption 20-30 gram/ton, cassiterite as concentrate with the froth pulp emersion, gangue minerals such as quartz are then stayed and are abandoned as mine tailing in the groove.
The present invention is particularly suitable for handling cassiterite-quartz vein type ore deposit and placer tin type ore.
Operation principle is:
In the selective milling process of ore, add tributyl phosphate 50～100 gram/ton ores, the tributyl phosphate molecular formula is: (RO)
3PO, tributyl phosphate has cohesion to the cassiterite mineral, after the consumption of tributyl phosphate reaches certain numerical value, the Sn in the solution in free ions and the solution
4+Plasma effect can generate precipitation, thereby in cassiterite mineral interface deposition, hydrophobic absorption takes place, and can strengthen the cohesion between particulate cassiterite, reduces cassiterite and pulverizes crossing of grinding process; Simultaneously tributyl phosphate substantially not with quartzy and calcite effect, so can improve the difference of the surface hydrophilic/hydrophobic property of cassiterite and gangue mineral, help the FLOTATION SEPARATION process.
The collecting agent of flotation is the benzene hydroxamic acid, and molecule is: (C
6H
11)-CO (NH
2OH).Benzene hydroxamic acid fusing point is about 65～70 ℃, and when having inorganic acid to exist, facile hydrolysis is NH
2OH and carboxylic acid, benzene isoxime acid energy and Sn
2+Chela and reaction take place in ion, and the cassiterite surface has generated corresponding benzene hydroxamate product, promptly on this mineral surfaces chemisorbed has taken place, and has the collecting performance.
The present invention is added into tributyl phosphate to the cassiterite ore of certain particle size at grinding process, carries out selective milling, makes the micro fine particle mineral condense, and has avoided crossing of cassiterite to pulverize; And then classification, adopt conventional gravity treatment to reclaim greater than the part of 0.039mm, and for the fine fraction part less than 0.039mm, predictive desliming adopt method for floating to reclaim.By adding waterglass is inhibitor, and the benzene hydroxamic acid, makes that mineral surfaces such as quartz, calcite are hydrophilic, and do not have an effect with flotation collector to change cassiterite and mineral surfaces hydrophilic/hydrophobic character such as quartz, calcite as collecting agent; The cassiterite mineral surfaces is hydrophobic.Can make cassiterite and mineral such as quartz, calcite realize FLOTATION SEPARATION.
The technique of preparing of traditional relatively cassiterite ore, the present invention has avoided crossing of cassiterite to pulverize by selective milling, has significantly reduced the content of particulate cassiterite; Ore milling product carries out classification, part greater than 0.039mm adopts gravity treatment to reclaim, and for the fine fraction ore less than 0.039mm, because ore grinding has added ore grinding medicament tributyl phosphate, ore does not need predictive desliming, directly adopts method for floating to reclaim, adopt the present invention to handle cassiterite-quartz type ore or the placer tin type ore that contains Sn 0.6～2.0%, flotation concentrate contains Sn more than 26%, and flotation recovery rate is more than 80%, compares the tin metal overall recovery with traditional handicraft and improves more than 10%.
Description of drawings
Fig. 1: process flow diagram of the present invention.
The specific embodiment
Embodiment 1:
Processing contains Sn 1.1%, SiO
231.3%, CaCO
311.2% cassiterite-quartz vein type ore, process system is: go into ore grinding stone granularity less than 20mm, grinding condition is an ore milling concentration 55%, and it is 6.8 that the acid-base value of ore grinding system is controlled at pH; Ore and floating agent tributyl phosphate together add ore mill and carry out ore grinding, and consumption is 60 gram/ton raw ores.Wherein return ore mill greater than the part of 0.5mm, enter cyclone greater than the part of 0.5mm and carry out classification, part greater than 0.039mm adopts gravity treatment (being generally shaking table equipment) to reclaim cassiterite, and the tin concentrate grade (Sn) of acquisition is 54%, and this part tin rate of recovery is 80.3%.
And for the fine fraction part less than 0.039mm, predictive desliming does not adopt method for floating to reclaim.Floatation concentration is 28%, adopt roughly select for twice, the flow process of once purging selection, triple cleaning, the mash acid alkalinity of whole floatation process keeps pH about 6～8.Inhibitor waterglass consumption is 200 gram/ton ores, and collecting agent benzene hydroxamic acid consumption is 100 gram/ton ores, and foaming agent is a terpenic oil, consumption 20 gram/ton ores, cassiterite as concentrate with the froth pulp emersion, flotation concentrate contains Sn28.6%, flotation recovery rate is 83%.Improved 12.4% with original technology comparison tin metal overall recovery.
Embodiment 2:
Processing contains Sn 0.9%, SiO
221.3%, CaCO
316.8% alluvial tin type ore, process system is: go into ore grinding stone granularity less than 20mm, grinding condition is an ore milling concentration 50%, and it is 6.8 that the acid-base value of ore grinding system is controlled at pH; Ore and floating agent tributyl phosphate together add ore mill and carry out ore grinding, and consumption is 90 gram/ton raw ores.Wherein return ore mill greater than the part of 0.5mm, enter cyclone greater than the part of 0.5mm and carry out classification, part greater than 0.039mm adopts gravity treatment (being generally shaking table equipment) to reclaim cassiterite, and the tin concentrate grade (Sn) of acquisition is 58%, and this part tin rate of recovery is 84.3%.
And for the fine fraction part less than 0.039mm, predictive desliming does not directly adopt method for floating to reclaim.Floatation concentration is 26%, adopt roughly select for twice, the flow process of once purging selection, triple cleaning, the mash acid alkalinity of whole floatation process keeps pH 6～8.Inhibitor waterglass consumption is 260 gram/ton ores, and collecting agent benzene hydroxamic acid consumption is 80 gram/ton ores, and foaming agent is a terpenic oil, consumption 25 gram/ton ores, cassiterite as concentrate with the froth pulp emersion, flotation concentrate contains Sn26.5%, flotation recovery rate is 83.6%.Improved 11.2% with original technology comparison tin metal overall recovery.
Claims (1)
1. the beneficiation method of a cassiterite ore, comprise fragmentation, ore grinding, classification will soon be carried out selective milling less than the cassiterite ore deposit of 20mm at the wet type rod mill through the granularity of fragmentation, and ore milling product carries out classification through dusting cover, wherein return ore mill greater than the part of 0.5mm, enter cyclone less than the part of 0.5mm and carry out classification, the part greater than 0.039mm after the classification adopts gravity treatment to reclaim cassiterite, it is characterized in that:
A) add ore grinding medicament tributyl phosphate in grinding process, the tributyl phosphate consumption is 50～100 gram/ton ores;
B) also comprise fine fraction flotation partly less than 0.039mm, floatation concentration is 20～30%, adopt roughly select for twice, the flow process of once purging selection, triple cleaning, the mash acid alkalinity of whole floatation process keeps pH 6～8, inhibitor is a waterglass, consumption is 200～260 gram/ton ores, and gangue minerals such as quartz, calcite are suppressed; Collecting agent is the benzene hydroxamic acid, and consumption is 80～100 gram/ton ores, and foaming agent is a terpenic oil, consumption 20-30 gram/ton, cassiterite as concentrate with the froth pulp emersion, gangue minerals such as quartz are then stayed and are abandoned as mine tailing in the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410045027 CN1285417C (en) | 2004-07-13 | 2004-07-13 | Cassiterite ore separation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410045027 CN1285417C (en) | 2004-07-13 | 2004-07-13 | Cassiterite ore separation method |
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| Publication Number | Publication Date |
|---|---|
| CN1721080A CN1721080A (en) | 2006-01-18 |
| CN1285417C true CN1285417C (en) | 2006-11-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200410045027 Expired - Fee Related CN1285417C (en) | 2004-07-13 | 2004-07-13 | Cassiterite ore separation method |
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Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101884951B (en) * | 2010-06-23 | 2012-11-28 | 广西华锡集团股份有限公司车河选矿厂 | Combined mineral dressing technology of fine grain and micro grain cassiterite |
| 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 |
| CN102489386B (en) * | 2011-12-13 | 2013-06-19 | 广州有色金属研究院 | Method for separating fine cassiterite |
| CN102658236B (en) * | 2012-04-25 | 2013-07-10 | 广西华锡集团股份有限公司 | Method for recovering fine mud cassiterite |
| CN102631977A (en) * | 2012-05-05 | 2012-08-15 | 广州有色金属研究院 | Beneficiation method for ultrafine fraction cassiterite |
| CN102974460B (en) * | 2012-12-05 | 2015-01-21 | 蒋天勇 | Method for recycling tin tailings |
| CN103071596B (en) * | 2013-01-22 | 2014-07-30 | 昆明理工大学 | Method for recycling fine and superfine cassiterites from oxidized lode tin mud tailings |
| CN103381388B (en) * | 2013-07-19 | 2015-09-16 | 广西华锡集团股份有限公司再生资源分公司 | A kind of tin recovery method of microfine low-grade secondary mine tailing |
| CN103736598B (en) * | 2014-01-14 | 2015-01-28 | 会理县鹏晨废渣利用有限公司 | Copper smelting slag copper recovery and flotation technology |
| CN104107755A (en) * | 2014-05-26 | 2014-10-22 | 范振捷 | Ore dressing process for removing arsenic and sulphur from bellmetal ore |
| CN104148166B (en) * | 2014-08-06 | 2016-06-22 | 昆明理工大学 | A kind of beneficiation method of complicated tellurium Ore |
| CN104492608B (en) * | 2014-11-21 | 2017-01-25 | 广西大学 | Floatation separation method of micro-fine-particle cassiterite and quartz |
| CN104588201B (en) * | 2015-01-09 | 2017-09-15 | 临武县南方矿业有限责任公司 | A kind of gravity treatment raw ore is sized mixing stage division and its application in advance |
| CN104646188B (en) * | 2015-01-09 | 2017-12-12 | 临武县南方矿业有限责任公司 | Tin-lead soldering medicament composition |
| CN106583055A (en) * | 2016-11-23 | 2017-04-26 | 四川省地质矿产勘查开发局成都综合岩矿测试中心 | Titanium collecting agent for flotation of low-titanium vanadium titano-magnetite |
| CN108212507B (en) * | 2016-12-14 | 2020-02-18 | 有研工程技术研究院有限公司 | Mineral processing technology for recovering fine grains and micro-fine grains of cassiterite from tailings |
| CN107913802B (en) * | 2017-10-12 | 2019-10-08 | 中南大学 | A method of from selecting flotation recovery fluorite in tin tailings |
| CN108393198A (en) * | 2018-04-28 | 2018-08-14 | 昆明理工大学 | A kind of combination medicament and its application method for micro fine particle flotation |
| CN109092567A (en) * | 2018-08-02 | 2018-12-28 | 湖南柿竹园有色金属有限责任公司 | A kind of efficient collecting of tin and strong selectivity inhibitor process integration |
| CN110773327A (en) * | 2019-11-14 | 2020-02-11 | 云南锡业研究院有限公司 | Method for flotation recovery of fine cassiterite of oxidized vein tin ore |
| CN112973972A (en) * | 2021-03-10 | 2021-06-18 | 青岛鑫润矿业科技有限公司 | Cassiterite flotation collector and using method thereof |
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- 2004-07-13 CN CN 200410045027 patent/CN1285417C/en not_active Expired - Fee Related
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