CN104069937A - Ore dressing method for removing pyrrhotite from iron ore - Google Patents
Ore dressing method for removing pyrrhotite from iron ore Download PDFInfo
- Publication number
- CN104069937A CN104069937A CN201410206840.3A CN201410206840A CN104069937A CN 104069937 A CN104069937 A CN 104069937A CN 201410206840 A CN201410206840 A CN 201410206840A CN 104069937 A CN104069937 A CN 104069937A
- Authority
- CN
- China
- Prior art keywords
- iron ore
- ore
- butyl
- agent
- concentrate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses an ore dressing method for removing pyrrhotite from iron ore. The ore dressing method for removing the pyrrhotite from the iron ore includes that performing crushing, ore grinding, grading and low intensity magnetic separation techniques to obtain low intensity magnetic concentrate, wherein the TFE grade of the low intensity magnetic concentrate is more than or equal to 65.0%, and the low intensity magnetic concentrate comprises 0.5-1.4% of S; carrying out reverse flotation roughing and reverse flotation selection on the low intensity magnetic concentrate to obtain low-pyrite concentrate with less than 0.15% of S. Weighted by the dry ore amount for the reverse flotation, the reverse flotation roughing chemical comprises (1) pH regulating agent, to be specific, 800-1200 g/t of sulfuric acid; (2) activating agent, to be specific, 80-150 g/t of copper sulfate; (3) collecting agent, to be specific, 250-400 g/t of iso-butyl xanthate and 150-250 g/t of butyl dithiophosphate; (4) foaming agent, to be specific, 30-70 g/t of 2# oil. The ore dressing method for removing the pyrrhotite from the iron ore uses the butyl dithiophosphate and butyl xanthate or iso-butyl xanthate to form sulfur content reducing chemical mixture, the molecular arrangement between the chemical micelles is improved to form a synergistic effect, the chemical is good for mineralizing and adsorbing, the hydrophobicity and the floating speed are properly reinforced, and the sulfur content of the iron concentrate is reduced to less than or equal to 0.03-0.15%. The ore dressing method for removing the pyrrhotite from the iron ore is especially suitable for removing the pyrrhotite from the iron ore with pyrrhotite through reverse flotation.
Description
Technical field
The invention belongs to technique of preparing field, be specifically related to a kind of containing sulphur iron ore select iron, sulfur removal technology and method, be particularly suitable for by reverse flotation, removing magnetic iron ore containing the iron ore of magnetic iron ore.
Background technology
The iron ore resource total amount of China is abundant, but the objectionable impurities content such as its sulphur, phosphorus and silica are high, disseminated grain size is thin, causes that ore dressing difficulty is large, efficiency is low, and especially in iron ore concentrate, sulfur content is higher, lacks competitiveness in the international market.In recent years, a large amount of imports of high-quality iron ore have caused serious impact to the sustainable development of China iron ore mine, the sulfur content that reduces iron ore concentrate becomes urgent scientific research mission, and the development and utilization research that contains sulphur iron ore has very important important function to the development of Chinese national economy.
In iron ore, containing pyrite and magnetic iron ore is common phenomenon, is difficult to remove by magnetic separation, and its floatability is poor again, belongs to difficult mineral.As everyone knows, sulphur is a kind of objectionable impurities in smelting iron and steel, remains in iron and steel and can affect steel quality, the SO producing in smelting
2being thrown in air and can polluting, also can generate acid rain, have a strong impact on people's health, is the important content of energy-saving and emission-reduction.Ye You smeltery and power plant (coal power generation) sulphur when ore dressing does not purify, and when smelting, adds desulfurizing agent, has so just increased cost and flow process complexity yet.
Current, comprise with desulfurization iron selection technique and the method for the iron ore of magnetic iron ore, pyrite association: stage grinding, stage grading sulfur removal technology, magnetic separation-flotation combined sulfur removal technology, roasting-magnetic separation-flotation combined sulfur removal technology.Nearest and comparatively advanced: under acid medium, take copper sulphate as activator, the xanthate of take carries out flotation, final iron ore concentrate sulfur-bearing 0.25%-1% or higher after desulfurization as collecting agent.
Iron ore concentrate sulfur-bearing 0.72% after the data sulphur removal that document " FLOTATION SEPARATION of magnetic iron ore and magnetic iron ore is put into practice " (the total high Hong Shan of institute of Beijing mining and metallurgy etc., " mine protection and utilization " magazine, 1997 the 4th phases) provides.Document " difficulty is selected PYRRHOTITE BY FLOTATION technical study " (the total Yang Ju of institute of Beijing mining and metallurgy etc., " non-ferrous metal (ore dressing part) " 04 phase in 2002) in the iron-bearing mineral that selects copper mine tailing, select magnetic iron ore as object product, gained sulphur concentrate grade sulfur-bearing 36.70%, sulfur recovery rate 16.37%.Their beneficiation method is all in acid medium, with copper sulphate, make activator, with xanthate, makes collecting agent.Document " new bridge mining industry Co., Ltd sulfur-containing magnetite Experimental study on ore dressing " (metal mine .2005 (8)) is for the high feature of magnetic iron ore content in new bridge mining industry Co., Ltd sulfur-containing magnetite, adopt HH-1 efficient activator to carry out desulfurization test, obtained the sorting index of iron ore concentrate sulfur-bearing 0.319%, TFe grade 66.99%, the TFe rate of recovery 47.68%.Document " desulfurization of Technology of Anqing iron ore concentrate is put into practice " (metal mine, 2005 (8)) higher for iron ore bottom, smelting mountain ore body raw ore sulfur content, particularly wherein magnetic iron ore content is large, the actual conditions that cause magnetite concentrate sulfur-bearing to exceed standard, by strengthening floatation process, add Elsholtzia consumption, applying the means such as composite activating agent MS-1, make iron ore concentrate sulfur content be down to 0.4% by 0.8%.
From above document and at present common technology find out to have plenty of under acid medium with copper sulphate and make the beneficiation method that activator, xanthate are made collecting agent; Have plenty of the efficient activator that adopts independent research, and add the method sulphur removal of Elsholtzia consumption.These methods, although sulfur content can be down to 0.25%-1.0%, large industrial production conditional fluctuation, or the fluctuation of different ore washabilitys, all can cause that concentrate sulfur-bearing surpasses the fluctuation of 0.3% national standard, what even have reaches 2.0% left and right.
Summary of the invention
Object of the present invention is exactly for the above-mentioned problems in the prior art, and provide a kind of novel, iron ore improved, desulfurized effect excellence removes the beneficiation method of magnetic iron ore, and the method can make iron ore concentrate sulfur-bearing be down to 0.03% ~ 0.15% scope and following.
For achieving the above object, the beneficiation method that a kind of iron ore of the present invention removes magnetic iron ore by the following technical solutions:
The first scheme that a kind of iron ore of the present invention removes the beneficiation method of magnetic iron ore is:
Adopt fragmentation, ore grinding, classification-weak magnetic separation process obtain TFe grade >=65.0%, containing the inferior fine magnetite concentrate of S0.5 ~ 1.4%, described inferior fine magnetite concentrate is adopted anti-floatingly roughly select, low-sulfur iron ore concentrate that twice anti-floating selected acquisition contains S<0.15%;
The described anti-floating regime of agent of roughly selecting is counted to feed the dry ore deposit amount of reverse flotation work:
(1) PH adjusting agent: sulfuric acid 800 ~ 1200g/t;
(2) activator: copper sulphate 45 ~ 210g/t;
(3) collecting agent: butyl xanthate or Isobutylxanthic acid 200 ~ 650 g/t, butyl black powder 140 ~ 250g/t;
(4) foaming agent: 2
#oil 20 ~ 70g/t;
Described anti-floating selected regime of agent is counted to feed the dry ore deposit amount of reverse flotation work:
(1) primary cleaning
1. collecting agent: butyl black powder 50 ~ 80g/t;
2. foaming agent: 2
#oil 30 ~ 50g/t;
(2) recleaning
1. collecting agent: butyl black powder 25 ~ 40g/t;
2. foaming agent: 2
#oil 20 ~ 40g/t.
In the pH adjusting agent that the anti-floating stage of roughly selecting adds, adjust the pH value of ore pulp and be advisable in 4 ~ 6 scopes.
At reverse flotation, roughly select the stage, the mass ratio of the butyl xanthate adding or Isobutylxanthic acid and butyl black powder is (2 ~ 4): 1 for excellent, and best mass ratio is 3:1.
The second technical scheme that a kind of iron ore of the present invention removes the beneficiation method of magnetic iron ore is:
Employing fragmentation, ore grinding, classification-weak magnetic separation process obtain TFe grade >=67.0%, contain the inferior fine magnetite concentrate of S0.5 ~ 0.7%, it is characterized in that: to described inferior fine magnetite concentrate, adopt a reverse flotation to obtain the low-sulfur iron ore concentrate that contains S<0.1%; The regime of agent that a described reverse flotation adopts is counted to feed the dry ore deposit amount of reverse flotation work:
(1) pH adjusting agent: sulfuric acid 800 ~ 1200g/t;
(2) collecting agent: butyl xanthate or Isobutylxanthic acid 250 ~ 400 g/t, butyl black powder 150 ~ 250g/t;
(3) foaming agent: 2
#oil 15 ~ 30g/t.
The mass ratio of the butyl xanthate adding or Isobutylxanthic acid and butyl black powder be take (1.5 ~ 2): 1 as excellent.
The third technical scheme that a kind of iron ore of the present invention removes the beneficiation method of magnetic iron ore is:
Adopt fragmentation, ore grinding, classification-weak magnetic separation process obtain TFe grade >=65.0%, containing the inferior fine magnetite concentrate of S >=0.5%, it is characterized in that: described inferior fine magnetite concentrate is adopted anti-floatingly roughly select, low-sulfur iron ore concentrate that anti-floating selected acquisition contains S<0.15%;
The described anti-floating regime of agent of roughly selecting is counted to feed the dry ore deposit amount of reverse flotation work:
(1) pH adjusting agent: sulfuric acid 800 ~ 1200g/t;
(2) activator: copper sulphate 80 ~ 150g/;
(3) collecting agent: Isobutylxanthic acid 250 ~ 400 g/t, butyl black powder 150 ~ 250g/t;
(4) foaming agent: 2
#oil 30 ~ 70g/t;
Described anti-floating selected regime of agent is counted to feed the dry ore deposit amount of reverse flotation work:
1. Isobutylxanthic acid 80 ~ 150 g/t;
2. butyl black powder 80 ~ 15g/t.
Anti-floating roughly selecting the stage, the mass ratio of the Isobutylxanthic acid adding and butyl black powder is (1.5 ~ 2): 1; The Isobutylxanthic acid adding in the anti-floating selected stage is (0.8 ~ 1.2) with the mass ratio of butyl black powder: 1.
A kind of iron ore of the present invention removes the beneficiation method of magnetic iron ore, and its technical conceive is to keep medicament optionally under condition, strengthening energetically the collecting ability of medicament.Under acid medium, copper sulphate is made activator, xanthate (or butyl xanthate/Isobutylxanthic acid) and is made the existing method of flotation collector and compare, the present invention adopts butyl black powder collecting agent mixed with butyl xanthate/Isobutylxanthic acid, thereby makes ore dressing effect have great raising.
A kind of iron ore of the present invention removes the beneficiation method of magnetic iron ore, because the butyl black powder adding foamability under acid condition is stronger than xanthate, can save or reduce foaming agent 2
#the consumption of oil, and butyl black powder itself is again collecting agent, is conducive to bubble and floating, 2
#oil does not have collecting ability, has but occupied the space that collecting agent contacts with ore particle; Butyl black powder and butyl xanthate or Isobutylxanthic acid form falls sulphur confection, improved the intermicellar molecules align of medicament, form cooperative effect, favourable its mineralising absorption (physics and chemistry), strengthened its suitable hydrophobicity and ascent rate, can make iron ore concentrate sulfur-bearing be down to 0.03% ~ 0.15% scope and following.From experimental phenomena, find out, its foam mineralising effect is much better than simple use butyl xanthate or Isobutylxanthic acid, and its foam is stained with ore particle.
Accompanying drawing explanation
Fig. 1 is the principle process chart that a kind of iron ore of the present invention removes the beneficiation method of magnetic iron ore.
The specific embodiment
For describing the present invention, the beneficiation method that a kind of iron ore of the present invention is removed to magnetic iron ore below in conjunction with drawings and Examples is described in further detail.
Embodiment 1:
Shandong magnetic concentrate ore grinding to granularity-200 order (0.075mm) of sulfur-bearing 0.9% ~ 1.3% is accounted for to 85%, magnet mineral basic monomer is dissociated, with patented method of the present invention and original method, carry out desulfurization contrast test, original method is under acid medium, to add copper sulphate to make activator, and butyl xanthate carries out flotation as collecting agent.The inventive method is to introduce in the above conditions butyl black powder to carry out flotation as hybrid collector.It is identical that institute adds two kinds of methods of collecting agent total amount.The dosing system of contrast test is listed as follows:
Table 1 is roughly selected dosing
The selected dosing of table 2
Flotation final result, original method is from taking off to sulfur-bearing 0.36% to ore deposit sulfur-bearing 0.92%, and the inventive method is from taking off to sulfur-bearing 0.14% to ore deposit sulfur-bearing 1.28%, and effect is quite remarkable.
Embodiment 2:
External certain ore deposit iron grade 54.82%, sulfur-bearing 4.37%, iron grade 68.54% after magnetic separation, sulfur-bearing 0.7%, sulfur-bearing still exceeds standard, and with the inventive method flotation, adds sulfuric acid 1000g/t, butyl xanthate 350g/t, butyl black powder 200g/t, 2
#oil 20g/t carries out flotation, obtains final iron concentrate grade 69.06%, sulfur-bearing 0.03%, and iron recovery 96.67%, sulphur rough concentrate grade 15.28%, sulphur concentrate mixes in sulfur recovery rate 93.27%(sulphur rough concentrate Ke Gong sulfuric acid plant), ore dressing effect is quite excellent.
Embodiment 3:
Somewhere magnetic iron ore accounts for 85% granularity through broken ore grinding to-200 orders, adds sulfuric acid 1000g/t, copper sulphate 200g/t, butyl xanthate 600g/t, butyl black powder 150g/t, 2
#oil 30g/t carry out primary election, then carry out twice selected, only add 300g/t sulfuric acid, the flotation results of finally opening a way at every turn: sulphur concentrate grade 36.21%, sulfur recovery rate 91.25%, result of the test is quite good.
The present embodiment 3 carries out flotation using magnetic iron ore as object mineral.
Embodiment 4:
A kind of iron ore of the present invention as shown in Figure 1 removes the principle process chart of the beneficiation method of magnetic iron ore to be found out, by TFe grade >=65.0%, account for 85% granularity containing the be milled to-0.075mm of inferior fine magnetite concentrate of S0.5 ~ 1.4%, carries out anti-floatingly roughly selecting, anti-floating selected obtaining.The described anti-floating regime of agent of roughly selecting is counted to feed the dry ore deposit amount of reverse flotation work:
(1) pH adjusting agent: sulfuric acid 1.1kg/t;
(2) activator: copper sulphate 0.1kg/ t;
(3) collecting agent: Isobutylxanthic acid 0.35k g/t, butyl black powder 0.2kg/t;
(4) foaming agent: 2
#oil 0.05kg/t;
Described anti-floating selected regime of agent is counted to feed the dry ore deposit amount of reverse flotation work:
1. Isobutylxanthic acid 0.1kg t;
2. butyl black powder 0.1kg/t.
Claims (4)
1. an iron ore removes the beneficiation method of magnetic iron ore, adopt fragmentation, ore grinding, classification-weak magnetic separation process obtain TFe grade >=65.0%, containing the inferior fine magnetite concentrate of S0.5 ~ 1.4%, it is characterized in that: described inferior fine magnetite concentrate is adopted anti-floatingly roughly select, low-sulfur iron ore concentrate that twice anti-floating selected acquisition contains S<0.15%;
The described anti-floating regime of agent of roughly selecting is counted to feed the dry ore deposit amount of reverse flotation work:
(1) pH adjusting agent: sulfuric acid 800 ~ 1200g/t;
(2) activator: copper sulphate 45 ~ 210g/t;
(3) collecting agent: butyl xanthate or Isobutylxanthic acid 200 ~ 650g/t, butyl black powder 140 ~ 250g/t;
(4) foaming agent: 2
#oil 20 ~ 70g/t;
Described anti-floating selected regime of agent is counted to feed the dry ore deposit amount of reverse flotation work:
(1) primary cleaning
1. collecting agent: butyl black powder 50 ~ 80g/t;
2. foaming agent: 2
#oil 30 ~ 50g/t;
(2) recleaning
1. collecting agent: butyl black powder 25 ~ 40g/t;
2. foaming agent: 2
#oil 20 ~ 40g/t.
2. a kind of iron ore as claimed in claim 1 removes the beneficiation method of magnetic iron ore, it is characterized in that: in the pH adjusting agent that the anti-floating stage of roughly selecting adds, adjust the pH value of ore pulp in 4 ~ 6 scopes.
3. a kind of iron ore as claimed in claim 1 or 2 removes the beneficiation method of magnetic iron ore, it is characterized in that: at reverse flotation, roughly select the stage, the mass ratio of the butyl xanthate adding or Isobutylxanthic acid and butyl black powder is (2 ~ 4): 1.
4. as claimed in claim a kind of iron ore removes the beneficiation method of magnetic iron ore, it is characterized in that: at reverse flotation, roughly select the stage, the mass ratio of the butyl xanthate adding or Isobutylxanthic acid and butyl black powder is 3:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410206840.3A CN104069937A (en) | 2014-05-16 | 2014-05-16 | Ore dressing method for removing pyrrhotite from iron ore |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410206840.3A CN104069937A (en) | 2014-05-16 | 2014-05-16 | Ore dressing method for removing pyrrhotite from iron ore |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104069937A true CN104069937A (en) | 2014-10-01 |
Family
ID=51591773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410206840.3A Pending CN104069937A (en) | 2014-05-16 | 2014-05-16 | Ore dressing method for removing pyrrhotite from iron ore |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104069937A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104826728A (en) * | 2015-05-07 | 2015-08-12 | 中钢集团马鞍山矿山研究院有限公司 | New mineral separation method suitable for separation of hard-separation micro-fine particle magnetic iron ores |
| CN106362859A (en) * | 2016-11-24 | 2017-02-01 | 江苏省冶金设计院有限公司 | System and method for preparing low-sulfur iron powder |
| CN107199120A (en) * | 2017-07-27 | 2017-09-26 | 中钢集团马鞍山矿山研究院有限公司 | A kind of beneficiation method containing magnetic iron ore, the high-sulfur magnetic iron ore of pyrite |
| CN107243409A (en) * | 2017-07-27 | 2017-10-13 | 中钢集团马鞍山矿山研究院有限公司 | A kind of high-sulfur magnetic iron ore puies forward the beneficiation method of iron sulfur reduction |
| CN108097452A (en) * | 2018-02-12 | 2018-06-01 | 包头市汇林薪宝矿业有限责任公司 | The ore-dressing technique of fine quality iron concentrate is produced from iron ore |
| CN108097453A (en) * | 2018-02-12 | 2018-06-01 | 包头市汇林薪宝矿业有限责任公司 | The method that magnetic iron ore is removed from iron concentrate containing high sulphur |
| CN108144744A (en) * | 2016-12-06 | 2018-06-12 | 南京梅山冶金发展有限公司 | The method for floating of sulphur in a kind of association troilite |
| CN108355841A (en) * | 2018-02-12 | 2018-08-03 | 包头市汇林薪宝矿业有限责任公司 | The method that fine quality iron concentrate and iron concentrate are produced from iron concentrate containing high sulphur |
| CN110624698A (en) * | 2019-08-15 | 2019-12-31 | 葫芦岛八家矿业股份有限公司 | Method for recovering pyrrhotite from magnetic concentrate |
| CN110923441A (en) * | 2019-12-10 | 2020-03-27 | 北京矿冶科技集团有限公司 | Co-Mn multi-metal oxidized ore and seabed multi-metal sulfide combined metallization recovery method |
| CN112517247A (en) * | 2020-11-10 | 2021-03-19 | 和静县备战矿业有限责任公司 | Flotation reagent for high-sulfur magnetite ore and use method thereof |
| CN112871458A (en) * | 2020-12-28 | 2021-06-01 | 山东金岭矿业股份有限公司 | Combined reagent for desulfurizing fine iron powder under alkaline condition and method for desulfurizing pyrrhotite by using combined reagent |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB481934A (en) * | 1936-07-16 | 1938-03-16 | Roger Frederic Powell | Improvements in and relating to sulphidised materials obtained from naturally occurring resins |
| CN101157979A (en) * | 2007-11-08 | 2008-04-09 | 长沙矿冶研究院 | Method for desulfurizing high-sulfur iron ore powder |
| CN101176862A (en) * | 2007-11-27 | 2008-05-14 | 中南大学 | Highly effective composite restrainer of ferro-sulphur ore in complex vulcanizing ore and method of use thereof |
| CN101254484A (en) * | 2007-07-31 | 2008-09-03 | 中南大学 | High-efficiency cleaning mineral separation process of complicated sulfuration mine |
| CN101264466A (en) * | 2008-05-12 | 2008-09-17 | 昆明理工大学 | High phosphorus and sulphur siderite full flotation mineral separation method |
| CN101862701A (en) * | 2010-05-14 | 2010-10-20 | 昆明钢铁控股有限公司 | Comprehensive processing method of high phosphorus-sulfur siderite |
| CN102553717A (en) * | 2012-01-13 | 2012-07-11 | 鞍钢集团矿业公司 | Beneficiation process for high-sulfur hematite |
-
2014
- 2014-05-16 CN CN201410206840.3A patent/CN104069937A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB481934A (en) * | 1936-07-16 | 1938-03-16 | Roger Frederic Powell | Improvements in and relating to sulphidised materials obtained from naturally occurring resins |
| CN101254484A (en) * | 2007-07-31 | 2008-09-03 | 中南大学 | High-efficiency cleaning mineral separation process of complicated sulfuration mine |
| CN101157979A (en) * | 2007-11-08 | 2008-04-09 | 长沙矿冶研究院 | Method for desulfurizing high-sulfur iron ore powder |
| CN101176862A (en) * | 2007-11-27 | 2008-05-14 | 中南大学 | Highly effective composite restrainer of ferro-sulphur ore in complex vulcanizing ore and method of use thereof |
| CN101264466A (en) * | 2008-05-12 | 2008-09-17 | 昆明理工大学 | High phosphorus and sulphur siderite full flotation mineral separation method |
| CN101862701A (en) * | 2010-05-14 | 2010-10-20 | 昆明钢铁控股有限公司 | Comprehensive processing method of high phosphorus-sulfur siderite |
| CN102553717A (en) * | 2012-01-13 | 2012-07-11 | 鞍钢集团矿业公司 | Beneficiation process for high-sulfur hematite |
Non-Patent Citations (8)
| Title |
|---|
| 刘之能等: "丁基铵黑药体系下单斜磁黄铁矿浮选行为及其表面吸附机理", 《有色金属(选矿部分)》 * |
| 刘惠英等: "异丁基黄药取代丁基黄药效果显著", 《有色金属(选矿部分)》 * |
| 卢文光: "两性混合捕收剂的理论研究与应用", 《矿产保护与利用》 * |
| 孙传尧: "《选矿工程师手册 第1册 上 选矿通论》", 31 March 2015 * |
| 李治华等: "金川二矿区镍黄铁矿浮选特性研究", 《全国第一届镍钴学术会议论文集（第1册：矿山）》 * |
| 段凤梅: "提高选矿回收率的混合药剂制度的研究与应用", 《金属矿山》 * |
| 见百熙: "国外浮选药剂新进展", 《国外金属矿选矿》 * |
| 龚明光: "《浮选技术问答》", 31 October 2012 * |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104826728A (en) * | 2015-05-07 | 2015-08-12 | 中钢集团马鞍山矿山研究院有限公司 | New mineral separation method suitable for separation of hard-separation micro-fine particle magnetic iron ores |
| CN106362859A (en) * | 2016-11-24 | 2017-02-01 | 江苏省冶金设计院有限公司 | System and method for preparing low-sulfur iron powder |
| CN108144744A (en) * | 2016-12-06 | 2018-06-12 | 南京梅山冶金发展有限公司 | The method for floating of sulphur in a kind of association troilite |
| CN107243409B (en) * | 2017-07-27 | 2018-09-18 | 中钢集团马鞍山矿山研究院有限公司 | A kind of high-sulfur magnetic iron ore puies forward the beneficiation method of iron sulfur reduction |
| CN107199120A (en) * | 2017-07-27 | 2017-09-26 | 中钢集团马鞍山矿山研究院有限公司 | A kind of beneficiation method containing magnetic iron ore, the high-sulfur magnetic iron ore of pyrite |
| CN107243409A (en) * | 2017-07-27 | 2017-10-13 | 中钢集团马鞍山矿山研究院有限公司 | A kind of high-sulfur magnetic iron ore puies forward the beneficiation method of iron sulfur reduction |
| CN107199120B (en) * | 2017-07-27 | 2018-09-18 | 中钢集团马鞍山矿山研究院有限公司 | A kind of beneficiation method containing magnetic iron ore, the high-sulfur magnetic iron ore of pyrite |
| CN108097452A (en) * | 2018-02-12 | 2018-06-01 | 包头市汇林薪宝矿业有限责任公司 | The ore-dressing technique of fine quality iron concentrate is produced from iron ore |
| CN108355841A (en) * | 2018-02-12 | 2018-08-03 | 包头市汇林薪宝矿业有限责任公司 | The method that fine quality iron concentrate and iron concentrate are produced from iron concentrate containing high sulphur |
| CN108097453A (en) * | 2018-02-12 | 2018-06-01 | 包头市汇林薪宝矿业有限责任公司 | The method that magnetic iron ore is removed from iron concentrate containing high sulphur |
| CN110624698A (en) * | 2019-08-15 | 2019-12-31 | 葫芦岛八家矿业股份有限公司 | Method for recovering pyrrhotite from magnetic concentrate |
| CN110923441A (en) * | 2019-12-10 | 2020-03-27 | 北京矿冶科技集团有限公司 | Co-Mn multi-metal oxidized ore and seabed multi-metal sulfide combined metallization recovery method |
| CN110923441B (en) * | 2019-12-10 | 2021-08-24 | 矿冶科技集团有限公司 | Co-Mn multi-metal oxidized ore and seabed multi-metal sulfide combined metallization recovery method |
| CN112517247A (en) * | 2020-11-10 | 2021-03-19 | 和静县备战矿业有限责任公司 | Flotation reagent for high-sulfur magnetite ore and use method thereof |
| CN112871458A (en) * | 2020-12-28 | 2021-06-01 | 山东金岭矿业股份有限公司 | Combined reagent for desulfurizing fine iron powder under alkaline condition and method for desulfurizing pyrrhotite by using combined reagent |
| CN112871458B (en) * | 2020-12-28 | 2022-07-22 | 山东金岭矿业股份有限公司 | Combined reagent for desulfurizing fine iron powder under alkaline condition and method for desulfurizing pyrrhotite by using combined reagent |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104069937A (en) | Ore dressing method for removing pyrrhotite from iron ore | |
| CN107855211B (en) | Beneficiation method for complex refractory high-grade copper-sulfur ore | |
| CN102921554B (en) | Step regrinding and stage desulphurization method for high sulfur-copper-zinc ore | |
| CN102218377B (en) | Efficient copper-cobalt oxide ore combination collecting agent and copper oxide ore beneficiation method | |
| CN105268559A (en) | Beneficiation method for low-grade copper sulphide ore | |
| CN101549322A (en) | Process of using sulphur lead-zinc containing tailings to prepare sulphur iron ore concentrate | |
| CN103495493A (en) | Beneficiation method for low-grade fine tin ore | |
| CN109482356B (en) | Method for flotation of uranium niobium-titanium ore and application of combined collecting agent | |
| CN103551245A (en) | Beneficiation method for comprehensively reclaiming complex multi-metal micro-grain cassiterite sulphide ore | |
| CN105435954A (en) | Method for increasing copper and nickel recycling rate from copper-nickel sulfide ore flotation middlings | |
| CN105013603A (en) | Copper-nickel sulfide ore mineral separation method | |
| CN109647616B (en) | Method for comprehensively recovering magnetite and copper minerals from copper slag flotation tailings | |
| CN105214837B (en) | A kind of copper sulphur ore deposit beneficiation method rich in magnetic iron ore and pyrite | |
| CN102513203B (en) | Method for recycling high-phosphorus/sulfur siderite resource | |
| CN105289834A (en) | Zinc and sulfur separation beneficiation method for pyrrhotite-rich zinc sulfide ore | |
| CN102962123A (en) | Beneficiation process for low-grade copper-nickel ore | |
| CN103752416A (en) | Zinc oxide mineral collector and use method thereof | |
| CN105413855A (en) | Method for cleaning and purification of tungsten rough concentrate | |
| CN102527497B (en) | Beneficiation method for separating zinc sulfide ores from sulphur in wet-method zinc smelting slag | |
| CN103447155A (en) | Ore dressing method for blue chalcocite and pyrite and collecting agent used in ore dressing method | |
| CN109261372B (en) | Method for stepwise recycling fluorite and barite | |
| CN102168159B (en) | Reducing agent for carrying out direct reduction roasting on limonite and hematite to produce reduced iron | |
| CN103464281B (en) | The recovery method of high-carbon high-sulfur jamesonite | |
| CN103252290B (en) | Process for selecting marmatite from high ferric sulphide ore | |
| CN103447147B (en) | Novel low grade hematite ore concentration and water purification process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141001 |