CN102441482A - Mineral separation method for scheelite containing rich pyrrhotite - Google Patents
Mineral separation method for scheelite containing rich pyrrhotite Download PDFInfo
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- CN102441482A CN102441482A CN2011102930590A CN201110293059A CN102441482A CN 102441482 A CN102441482 A CN 102441482A CN 2011102930590 A CN2011102930590 A CN 2011102930590A CN 201110293059 A CN201110293059 A CN 201110293059A CN 102441482 A CN102441482 A CN 102441482A
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Abstract
The invention discloses a mineral separation method for scheelite containing rich pyrrhotite, which comprises the following steps of: magnetically separating to obtain pyrrhotite rough concentrates and magnetically separated tailings; roughly separating, secondarily scavenging and secondarily blankly finely separating the pyrrhotite rough concentrates to obtain pyrrhotite concentrates and floating sulfur tailings; roughly separating, secondarily scavenging and secondarily finely separating the magnetically separated tailings to obtain white tungsten rough concentrates and floating tungsten tailings; and concentrating the white tungsten rough concentrates, carrying out floatation at normal temperature or the temperature of 80-100 degrees centigrade to obtain white tungsten concentrates and cleaner tailings. The method disclosed by the invention eliminates the influence caused by the pyrrhotite which is difficultly removed in the traditional flotation method, not only guarantees the quality of the tungsten concentrates but comprehensively recovers the pyrrhotite, and is suitable for mineral separation of the scheelite containing rich pyrrhotite.
Description
Technical field
The present invention relates to a kind of beneficiation method, particularly a kind of beneficiation method that contains the scheelite of magnetic iron ore.
Background technology
The scheelite resource often with associations such as some sulphide ores such as copper-sulphide ores, sulfuration molybdenum ore, pyrites together.The main method that reclaims scheelite is flotation, and the floatability of sulfide mineral is better than scheelite, is assurance white tungsten fine ore product quality, so needs the sulphide ore of first flotation association before the Scheelite Flotation.Sulfide flotation had both comprehensively reclaimed the valuable constituent in the resource, improved resource utilization, for enterprise brings economic benefit, provided convenience for Scheelite Flotation thereafter again.And in the sulfide flotation, the floatability of iron sulfide mineral is relatively poor.Iron sulfide mineral comprises pyrite and magnetic iron ore, and common pyritous floatability is superior to magnetic iron ore.Usually contain sulfur-bearing in the scheelite of magnetic iron ore greater than 3.5%, contain WO
3Greater than 0.2%, therefore, obtaining high-quality white tungsten fine ore through single flotation operation is a difficult problem.On the one hand, because magnetic iron ore is difficult floating, it is clean in the sulfide flotation operation, to be difficult to flotation, and the magnetic iron ore come-up in white tungsten flotation operation that causes not floating gets into tungsten concentrate, influences the white tungsten fine ore quality; On the other hand; If in the sulfide flotation process, add excess activation agent, collecting agent, foaming agent, can cause floatability preferably the scheelite come-up get in the sulphide ore, increase the loss of scheelite; Simultaneously, remaining medicament can cause harmful effect to follow-up white tungsten flotation.
One Chinese patent application numbers 201010187491.7 discloses a kind of beneficiation method of low-grade scheelite.Selected five steps that this method comprises that tail, iron removal by magnetic separation, sulfide flotation are thrown in gravity treatment, white tungsten normal temperature is roughly selected and white tungsten is heated.Iron removal by magnetic separation in this technical scheme mainly is to ferromagnetic magnetic iron ore, adopts the weak magnetic of 1000 ~ 3000Gs to deviate from.And still be through flotation to sorting of sulphide ore.The weak point of this method is to be directed against when being rich in the tungsten ore of magnetic iron ore, and floatation desulphurization can't guarantee the tungsten concentrate quality and the rate of recovery.
Summary of the invention
The object of the invention provides the beneficiation method of choosing scheelite concentrate and magnetic iron ore in a kind of scheelite that contains magnetic iron ore.
The present invention realizes through following technical scheme: 1) crushing raw ore, ore grinding account for 50 ~ 80% to-0.074mm; 2) magnetic separation: under 1500 ~ 8000Gs magnetic induction intensity, obtain magnetic iron ore rough concentrate and magnetic tailing; 3) flotation of magnetic iron ore rough concentrate is selected: calculate to the ore deposit by per ton, in the magnetic iron ore rough concentrate, add pH adjustment agent sulfuric acid 500 ~ 1500 grams, stirred 3 ~ 5 minutes; Roughly select collecting agent butyl xanthate 50 ~ 150 grams, foaming agent 2# oil 5 ~ 30 grams stirred 1 ~ 5 minute; Once purging selection butyl xanthate 30 ~ 60 grams, 2# oil 5 ~ 10 grams stirred 1 ~ 5 minute; Secondary is scanned butyl xanthate 20 ~ 30 grams, and 2# oil 5 grams stirred 1 ~ 5 minute; Secondary blank is selected, obtains magnetic iron ore concentrate and floating sulphur mine tailing; 4) white tungsten normal temperature is roughly selected: calculate to the ore deposit by per ton, in magnetic tailing, add pH adjustment agent sodium carbonate 500 ~ 1500 grams, inhibitor waterglass 500 ~ 5000 grams stirred 1 ~ 10 minute; Roughly select collecting agent enuatrol 100 ~ 500 grams, stirred 1 ~ 10 minute; Once purging selection collecting agent enuatrol 50 ~ 150 grams stirred 1 ~ 10 minute; Secondary is scanned collecting agent enuatrol 25 ~ 75 grams, stirs 1 ~ 10 minute; Primary cleaning waterglass 500 ~ 1000 grams stirred 1 ~ 10 minute; Recleaning waterglass 250 ~ 500 grams stirred 1 ~ 10 minute, obtained white tungsten rough concentrate and floating tungsten mine tailing; 5) white tungsten is selected: white tungsten rough concentrate is concentrated into concentration 50 ~ 70%, calculates to the ore deposit by per ton, add waterglass 200 ~ 5000 grams, under normal temperature or 80 ~ 100 ℃, stirred 30 ~ 120 minutes, flotation obtains white tungsten fine ore and cleaner tailings.Cleaner tailings can be back to white tungsten normal temperature and roughly select operation.To contain white tungsten WO to the ore deposit
30.30 ~ 0.80% raw ore is finally obtained white tungsten fine ore grade WO
350 ~ 70%, the rate of recovery 60 ~ 90%.
This technical scheme has following characteristics:
1) the magnetic iron ore rough concentrate is selected in magnetic separation, has solved the influence that the insoluble magnetic iron ore of traditional method for floating causes.Because magnetic iron ore floatability difference is big, it is clean to be difficult to flotation, needs to add the strong medicament of a large amount of foaming characteristics, influences scheelite and reclaims.Method of the present invention had both guaranteed the tungsten concentrate grade, had comprehensively reclaimed magnetic iron ore again;
2) the magnetic iron ore rough concentrate has been realized the comprehensive recovery of magnetic iron ore through the selected sulphur concentrate of sulfur-bearing more than 35% that obtain of flotation;
3) after the magnetic separation, improve the selected grade of scheelite, reduced flotation and gone into the ore dressing amount, reduced the floating agent consumption, saved recovery cost.Method of the present invention is applicable to the ore dressing of the scheelite that is rich in magnetic iron ore.
Description of drawings
Fig. 1 is the flow chart of beneficiation method of the present invention.
The specific embodiment
The selected regime of agent of the PYRRHOTITE BY FLOTATION of embodiment 1 ~ 3 is seen table 1; White tungsten normal temperature is roughly selected, the white selected regime of agent of tungsten is seen table 2.
The regime of agent that the PYRRHOTITE BY FLOTATION of table 1 embodiment 1 ~ 3 is selected
Annotate: magnetic iron ore is roughly selected adjustment agent sulfuric acid and was stirred 5 minutes, and butyl xanthate, 2# oil stirred 2 minutes; Scanning butyl xanthate, 2# oil stirs and is 2 minutes.
The white tungsten normal temperature of table 2 embodiment 1 ~ 3 is roughly selected and the white selected regime of agent of tungsten
Annotate: tungsten is roughly selected adjustment agent sodium carbonate, waterglass stirred 5 minutes, and enuatrol stirred 3 minutes; Scan the enuatrol stirring and be 3 minutes; Selected waterglass stirs and is 3 minutes.
Embodiment 1
Tungsten ore mountain, Jiangxi WO
30.75% scheelite, magnetic separation under magnetic induction intensity 5000Gs; It is selected by the listed dosing of table 1 magnetic concentrate to be carried out PYRRHOTITE BY FLOTATION, obtains magnetic iron ore concentrate and the floating sulphur mine tailing of sulfur-bearing more than 35.26%; By the listed dosing of table 2 magnetic tailing is carried out white tungsten normal temperature and roughly select, flow process is an one roughing, and secondary is scanned, and recleaning obtains white tungsten rough concentrate and floating tungsten mine tailing; White tungsten rough concentrate is concentrated into mass concentration 65%, heats, stirred 60 minutes, add the medicament flotation of heating by consumption shown in the table 2 and obtain white tungsten fine ore to 90 ℃.White tungsten fine ore grade WO
365.37%, the rate of recovery 89.49%, the result sees table 3.
The result of table 3 embodiment 1
Embodiment 2
Tungsten ore mountain, Jiangxi WO
30.72% scheelite, magnetic separation under magnetic induction intensity 5000Gs; It is selected by the listed dosing of table 1 magnetic concentrate to be carried out PYRRHOTITE BY FLOTATION, obtains magnetic iron ore concentrate and the floating sulphur mine tailing of sulfur-bearing more than 35.26%; By the listed dosing of table 2 magnetic tailing is carried out white tungsten normal temperature and roughly select, flow process is an one roughing, and secondary is scanned, and recleaning obtains white tungsten rough concentrate and floating tungsten mine tailing; White tungsten rough concentrate is concentrated into mass concentration 65%, and stirring at normal temperature 60 minutes is carried out flotation by the interpolation of consumption shown in the table 2 medicament and is obtained white tungsten fine ore.White tungsten fine ore grade WO
351.46 %, the rate of recovery 87.45%, the result sees table 4.
The result of table 4 embodiment 2
Embodiment 3
Tungsten ore mountain, Yunnan WO
30.55% scheelite, magnetic separation under magnetic induction intensity 6000Gs; It is selected by the listed dosing of table 1 magnetic concentrate to be carried out PYRRHOTITE BY FLOTATION, obtains magnetic iron ore concentrate and the floating sulphur mine tailing of sulfur-bearing more than 36.79%; By the listed dosing of table 2 magnetic tailing is carried out white tungsten normal temperature and roughly select, flow process is an one roughing, and secondary is scanned, and recleaning obtains white tungsten rough concentrate and floating tungsten mine tailing; White tungsten rough concentrate is concentrated into mass concentration 60%, heats, stirred 90 minutes, add the medicament flotation of heating by consumption shown in the table 2 and obtain white tungsten fine ore to 90 ℃.White tungsten fine ore grade WO
366.28 %, the rate of recovery 87.29%, the result sees table 5.
The result of table 5 embodiment 3
Claims (1)
1. beneficiation method that is rich in the scheelite of magnetic iron ore is characterized in that step is following: 1) crushing raw ore, ore grinding account for 50 ~ 80% to-0.074mm; 2) magnetic separation: under 1500 ~ 8000Gs magnetic induction intensity, obtain magnetic iron ore rough concentrate and magnetic tailing; 3) flotation of magnetic iron ore rough concentrate is selected: calculate to the ore deposit by per ton, in the magnetic iron ore rough concentrate, add pH adjustment agent sulfuric acid 500 ~ 1500 grams, stirred 3 ~ 5 minutes; Roughly select collecting agent butyl xanthate 50 ~ 150 grams, foaming agent 2# oil 5 ~ 30 grams stirred 1 ~ 5 minute; Once purging selection butyl xanthate 30 ~ 60 grams, 2# oil 5 ~ 10 grams stirred 1 ~ 5 minute; Secondary is scanned butyl xanthate 20 ~ 30 grams, and 2# oil 5 grams stirred 1 ~ 5 minute; Secondary blank is selected, obtains magnetic iron ore concentrate and floating sulphur mine tailing; 4) white tungsten normal temperature is roughly selected: calculate to the ore deposit by per ton, in magnetic tailing, add pH adjustment agent sodium carbonate 500 ~ 1500 grams, inhibitor waterglass 500 ~ 5000 grams stirred 1 ~ 10 minute; Roughly select collecting agent enuatrol 100 ~ 500 grams, stirred 1 ~ 10 minute; Once purging selection collecting agent enuatrol 50 ~ 150 grams stirred 1 ~ 10 minute; Secondary is scanned collecting agent enuatrol 25 ~ 75 grams, stirs 1 ~ 10 minute; Primary cleaning waterglass 500 ~ 1000 grams stirred 1 ~ 10 minute; Recleaning waterglass 250 ~ 500 grams stirred 1 ~ 10 minute, obtained white tungsten rough concentrate and floating tungsten mine tailing; 5) white tungsten is selected: white tungsten rough concentrate is concentrated into concentration 50 ~ 70%, calculates to the ore deposit by per ton, add waterglass 200 ~ 5000 grams, under normal temperature or 80 ~ 100 ℃, stirred 30 ~ 120 minutes, flotation obtains white tungsten fine ore and cleaner tailings.
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102909130A (en) * | 2012-11-14 | 2013-02-06 | 中湘钨业股份有限公司 | Scheelite beneficiation method |
| CN102962125A (en) * | 2012-12-12 | 2013-03-13 | 赣州金环磁选设备有限公司 | Method for reclaiming tungsten mineral from greisen mine in edge zone of quartz reef |
| CN102974459A (en) * | 2012-12-04 | 2013-03-20 | 赣州金环磁选设备有限公司 | Method for efficiently sorting scheelite containing weakly magnetic impurities |
| CN104475264A (en) * | 2014-11-26 | 2015-04-01 | 广东省工业技术研究院(广州有色金属研究院) | Scheelite beneficiation method |
| CN104858045A (en) * | 2015-06-08 | 2015-08-26 | 湖北鑫鹰环保科技股份有限公司 | Novel scheelite roughing technology |
| CN105214837A (en) * | 2015-10-14 | 2016-01-06 | 广州有色金属研究院 | One is rich in magnetic iron ore and pyritous copper sulphur ore deposit beneficiation method |
| CN105498978A (en) * | 2015-11-24 | 2016-04-20 | 韦立坚 | Beneficiation method for scheelite |
| CN105597938A (en) * | 2015-09-29 | 2016-05-25 | 广州有色金属研究院 | Beneficiation method of scheelite |
| CN106583022A (en) * | 2016-11-23 | 2017-04-26 | 昆明理工大学 | Beneficiation method for copper-nickel sulfide ore containing pyrrhotite |
| CN106583028A (en) * | 2016-12-15 | 2017-04-26 | 云南锡业股份有限公司卡房分公司 | Beneficiation method for low-grade scheelite rich in hedenbergite and andradite |
| CN109092561A (en) * | 2018-08-10 | 2018-12-28 | 湖南柿竹园有色金属有限责任公司 | A kind of room temperature black and white tungsten separating technology |
| CN111841871A (en) * | 2020-06-24 | 2020-10-30 | 紫金矿业集团股份有限公司 | Beneficiation method for low-grade tungsten ore |
| CN114849900A (en) * | 2022-03-21 | 2022-08-05 | 中南大学 | Method for recovering valuable elements in sulfur concentrate by combining pyrolysis and magnetic separation flotation |
| CN114950723A (en) * | 2022-05-23 | 2022-08-30 | 广东省科学院资源利用与稀土开发研究所 | Method for comprehensively recovering silver and tungsten from silver-containing tungsten polymetallic ore |
| CN114950724A (en) * | 2022-05-23 | 2022-08-30 | 广东省科学院资源利用与稀土开发研究所 | Beneficiation method for recovering valuable components from complex scheelite at normal temperature |
| CN114950723B (en) * | 2022-05-23 | 2024-04-26 | 广东省科学院资源利用与稀土开发研究所 | Method for comprehensively recovering silver and tungsten from silver-containing tungsten polymetallic ore |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102909130B (en) * | 2012-11-14 | 2016-05-18 | 中湘钨业股份有限公司 | A kind of white tungsten beneficiation method |
| CN102909130A (en) * | 2012-11-14 | 2013-02-06 | 中湘钨业股份有限公司 | Scheelite beneficiation method |
| CN102974459A (en) * | 2012-12-04 | 2013-03-20 | 赣州金环磁选设备有限公司 | Method for efficiently sorting scheelite containing weakly magnetic impurities |
| CN102974459B (en) * | 2012-12-04 | 2014-12-10 | 赣州金环磁选设备有限公司 | Method for efficiently sorting scheelite containing weakly magnetic impurities |
| CN102962125A (en) * | 2012-12-12 | 2013-03-13 | 赣州金环磁选设备有限公司 | Method for reclaiming tungsten mineral from greisen mine in edge zone of quartz reef |
| CN104475264A (en) * | 2014-11-26 | 2015-04-01 | 广东省工业技术研究院(广州有色金属研究院) | Scheelite beneficiation method |
| CN104858045A (en) * | 2015-06-08 | 2015-08-26 | 湖北鑫鹰环保科技股份有限公司 | Novel scheelite roughing technology |
| CN105597938A (en) * | 2015-09-29 | 2016-05-25 | 广州有色金属研究院 | Beneficiation method of scheelite |
| CN105214837B (en) * | 2015-10-14 | 2017-06-20 | 广州有色金属研究院 | A kind of copper sulphur ore deposit beneficiation method rich in magnetic iron ore and pyrite |
| CN105214837A (en) * | 2015-10-14 | 2016-01-06 | 广州有色金属研究院 | One is rich in magnetic iron ore and pyritous copper sulphur ore deposit beneficiation method |
| CN105498978A (en) * | 2015-11-24 | 2016-04-20 | 韦立坚 | Beneficiation method for scheelite |
| CN106583022A (en) * | 2016-11-23 | 2017-04-26 | 昆明理工大学 | Beneficiation method for copper-nickel sulfide ore containing pyrrhotite |
| CN106583028A (en) * | 2016-12-15 | 2017-04-26 | 云南锡业股份有限公司卡房分公司 | Beneficiation method for low-grade scheelite rich in hedenbergite and andradite |
| CN109092561A (en) * | 2018-08-10 | 2018-12-28 | 湖南柿竹园有色金属有限责任公司 | A kind of room temperature black and white tungsten separating technology |
| CN111841871A (en) * | 2020-06-24 | 2020-10-30 | 紫金矿业集团股份有限公司 | Beneficiation method for low-grade tungsten ore |
| CN114849900A (en) * | 2022-03-21 | 2022-08-05 | 中南大学 | Method for recovering valuable elements in sulfur concentrate by combining pyrolysis and magnetic separation flotation |
| CN114950723A (en) * | 2022-05-23 | 2022-08-30 | 广东省科学院资源利用与稀土开发研究所 | Method for comprehensively recovering silver and tungsten from silver-containing tungsten polymetallic ore |
| CN114950724A (en) * | 2022-05-23 | 2022-08-30 | 广东省科学院资源利用与稀土开发研究所 | Beneficiation method for recovering valuable components from complex scheelite at normal temperature |
| CN114950723B (en) * | 2022-05-23 | 2024-04-26 | 广东省科学院资源利用与稀土开发研究所 | Method for comprehensively recovering silver and tungsten from silver-containing tungsten polymetallic ore |
| CN114950724B (en) * | 2022-05-23 | 2024-04-30 | 广东省科学院资源利用与稀土开发研究所 | Mineral separation method for recovering valuable components of complex scheelite at normal temperature |
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Application publication date: 20120509 |