CN103861733B - A kind of magnetic separation-reverse flotation prepares the method for extraction of superpure concentrate of magnetite - Google Patents
A kind of magnetic separation-reverse flotation prepares the method for extraction of superpure concentrate of magnetite Download PDFInfo
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- CN103861733B CN103861733B CN201410115866.7A CN201410115866A CN103861733B CN 103861733 B CN103861733 B CN 103861733B CN 201410115866 A CN201410115866 A CN 201410115866A CN 103861733 B CN103861733 B CN 103861733B
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Abstract
Magnetic separation-reverse flotation prepares a method for extraction of superpure concentrate of magnetite, belongs to technical field of mineral processing, carries out according to the following steps: (1) iron ore concentrate adds water and makes iron ore concentrate ore pulp, carries out preliminary election magnetic separation with electromagnetic refiner, obtains pre-concentrate selection; (2) pre-concentrate selection is passed through cyclone classification, obtain overflow and underflow; (3) adopt magnetic separator to carry out secondary magnetic separation, the concentrate of acquisition is two concentrate selections; (4) two concentrate selections are diluted with water rear employing magnetic separator and carry out three magnetic separation, obtain three concentrate selections; (5) three concentrate selections are regulated concentration add collecting agent, be placed in reverse flotation equipment and carry out reverse flotation and roughly select, the ore deposit of roughly selecting of acquisition adds cation-collecting agent again, and it is selected to carry out reverse flotation, obtains extraction of superpure concentrate of magnetite.Method integrated cost of the present invention is low, and the rate of recovery is higher, and the extraction of superpure concentrate of magnetite of preparation meets the requirement of PM technique, is easy to realize large-scale industrial production.
Description
Technical field
The invention belongs to technical field of mineral processing, particularly a kind of magnetic separation-reverse flotation prepares the method for extraction of superpure concentrate of magnetite.
Background technology
Extraction of superpure concentrate of magnetite refers to that concentrate Iron grade reaches 71.5 ~ 72%, and dioxide-containing silica is the iron ore concentrate of 0.1 ~ 0.3%.
The work of foreign study extraction of superpure concentrate of magnetite starts from the sixties in 20th century, because extraction of superpure concentrate of magnetite iron-holder is close to the theoretical value of minal, utilizes conventional beneficiating method directly to produce for this reason and has certain difficulty; The states such as the former Soviet Union, Canada, the U.S., Norway have successively done research, and have carried out the production of certain scale, and the extraction of superpure concentrate of magnetite Iron grade produced is close to 72%, and dioxide-containing silica is less than 0.5%; China just produces magnetic material with fine quality iron concentrate about the sixties in 20th century greatly, along with China increases the demand of extraction of superpure concentrate of magnetite, the producer producing extraction of superpure concentrate of magnetite just constantly increases, and scale is also in continuous expansion, and production capacity develops into present several ten thousand tons by two or three initial kiloton; South China fragrant iron ore, Qidashan iron ore, Nasal deviation etc. successively successfully produce extraction of superpure concentrate of magnetite; But because extraction of superpure concentrate of magnetite is very harsh to the requirement of dioxide-containing silica, and fluctuation range requires strict, the extraction of superpure concentrate of magnetite of domestic production, no matter the quality of product and quantity all can not meet the requirement of industries concerned, need the research and development strengthened further extraction of superpure concentrate of magnetite.
In field of powder metallurgy, major part is raw material with iron scale, as made raw material direct-reduction with iron ore concentrate, then requires SiO in iron ore concentrate
2and other impurity content is very low, only have extraction of superpure concentrate of magnetite just can reach this requirement.In recent years, the reduced iron powder factory of West Europe, North America, Japan, employing extraction of superpure concentrate of magnetite is raw material, produces high performance iron powder.In China, owing to producing containing SiO
2and the lower extraction of superpure concentrate of magnetite of other impurity is more difficult, thus few in research of field of powder metallurgy application to it, adopt extraction of superpure concentrate of magnetite to do the producer of iron powder material also few.
Summary of the invention
For the problems referred to above that existing extraction of superpure concentrate of magnetite exists in technology of preparing, the invention provides a kind of method that magnetic separation-reverse flotation prepares extraction of superpure concentrate of magnetite, common iron ore concentrate is adopted to be raw material, by levigate again after preliminary election, then carry out magnetic separation and reverse flotation, prepare Iron grade and dioxide-containing silica meets the requirements of extraction of superpure concentrate of magnetite.
Method of the present invention is carried out according to the following steps:
1, the raw material adopted is the iron ore concentrate of grade 60 ~ 67%, adds water and makes the iron ore concentrate ore pulp of weight concentration 15 ~ 45%; Iron ore concentrate ore pulp electromagnetic refiner is carried out preliminary election magnetic separation, and magnetic field intensity during preliminary election magnetic separation is 100 ~ 500 oersteds, obtains pre-concentrate selection, grade 68 ~ 70%, weight concentration 40 ~ 60%;
2, pre-concentrate selection is passed through cyclone classification, control feed force is 0.13 ~ 0.25MPa, the weight concentration 10 ~ 40% of the overflow that classification obtains, the weight concentration 65 ~ 75% of the underflow of acquisition;
3, the overflow that classification obtains adopts magnetic separator to carry out secondary magnetic separation, and magnetic field intensity during secondary magnetic separation is 1000 ~ 2000 oersteds, and the concentrate of acquisition is two concentrate selections, grade 69 ~ 71%, and weight concentration is 30 ~ 50%;
4, two concentrate selections are diluted with water to weight concentration 15 ~ 45%, then adopt magnetic separator to carry out three magnetic separation, magnetic field intensity during three magnetic separation is 100 ~ 500 oersteds, and the concentrate of acquisition is three concentrate selections, grade 70.5 ~ 71.2%;
5, three concentrate selections are added water be adjusted to weight concentration 25 ~ 40%, add cation-collecting agent, addition is 30 ~ 120g/t tri-concentrate selection, is then placed in reverse flotation equipment and carries out reverse flotation and roughly select, controlling the reverse flotation time of roughly selecting is 10 ~ 20min, and the concentrate of acquisition is for roughly selecting ore deposit; Add cation-collecting agent to roughly selecting in ore deposit, addition is that 30 ~ 120g/t roughly selects ore deposit, and being then placed in reverse flotation equipment, to carry out reverse flotation selected, and the time controlling reverse flotation selected is 10 ~ 20min, and the concentrate of acquisition is extraction of superpure concentrate of magnetite.
Above-mentioned cation-collecting agent is lauryl amine or ether amine.
In above-mentioned iron ore concentrate, the part of granularity-0.074mm accounts for 60 ~ 90% of whole iron ore concentrate gross weight.
In above-mentioned iron ore concentrate, the weight content of FeO is 26 ~ 29%, SiO
2weight content be 4.5 ~ 5.8%.
Above-mentioned underflow is placed in that Ball-stirring mill is levigate makes levigate ore deposit, and in levigate ore deposit, fineness-325 object part accounts for 90 ~ 99% of levigate ore deposit gross weight, then passes through cyclone classification after being mixed with pre-concentrate selection in levigate ore deposit.
SiO in two above-mentioned concentrate selections
2weight content be 1 ~ 2%.
The above-mentioned grade 71.2 ~ 71.5%, SiO of roughly selecting ore deposit
2weight content be 0.1 ~ 0.3%.
The Iron grade of above-mentioned extraction of superpure concentrate of magnetite is 71.5 ~ 72%, SiO
2weight content be 0.1 ~ 0.3%.
In said method, underflow be placed in Ball-stirring mill levigate time, the filling rate of Ball-stirring mill is 35 ~ 80%.
In said method, the overall recovery of the iron of extraction of superpure concentrate of magnetite is 65 ~ 85%.
The present invention adopts the raw material that magnetic susceptibility is relatively high, first carries out preliminary election magnetic separation, then uses Ball-stirring mill levigate, then through twice magnetic separation, makes Iron grade at 69 ~ 71%, SiO
2content 1 ~ 2% iron ore concentrate; After reverse flotation, improve Iron grade further again and reduce SiO
2content, makes silica and acid non-soluble substance extraction of superpure concentrate of magnetite up to standard.Method integrated cost of the present invention is low, and the rate of recovery is higher, and the extraction of superpure concentrate of magnetite of preparation meets the requirement of PM technique, is easy to realize large-scale industrial production.
Accompanying drawing explanation
Fig. 1 is the method flow schematic diagram that the magnetic separation-reverse flotation of the embodiment of the present invention prepares extraction of superpure concentrate of magnetite.
Detailed description of the invention
The electromagnetic refiner that in the embodiment of the present invention, magnetic separation adopts and the specification of magnetic separator are Φ 600mm.
The model of the Ball-stirring mill adopted in the embodiment of the present invention is TW-50, and the ball size of Ball-stirring mill is at 10 ~ 35mm.
The equipment that in the embodiment of the present invention, secondary magnetic separation adopts is wet drum magnetic separator.
The cyclone that in the embodiment of the present invention, classification adopts is Φ 150mm hydrocyclone.
TFe60 ~ 67wt% in the raw material iron ore concentrate adopted in the embodiment of the present invention, containing FeO26 ~ 29wt%, TiO
20.3 ~ 0.4wt%, SiO
24.5 ~ 5.8wt%, Al
2o
30.5 ~ 1.2wt%, CaO0.1 ~ 0.3wt%, MgO0.2 ~ 0.6wt%, P≤0.02wt%, S≤0.02wt%.
In the raw material iron ore concentrate adopted in the embodiment of the present invention, the chemical phase analysis result of iron is that iron in ferric carbonate accounts for 0.15 ~ 0.3wt%, iron in iron oxide accounts for 0.1 ~ 5wt%, iron in iron sulfide accounts for 0.1 ~ 0.2wt%, and the iron in ferrosilite accounts for 0.5 ~ 0.7wt%, and all the other are Armco magnetic iron.
The rate of recovery of embodiment of the present invention Raw iron ore concentrate iron after magnetic separation preliminary election, levigate and classification is 94 ~ 95%.
The lauryl amine adopted in the embodiment of the present invention and ether amine are commercial products.
Embodiment 1
The raw material adopted is the iron ore concentrate of grade 65%, and the weight content that the part of granularity-0.074mm accounts for 80%, FeO of gross weight is 26%, SiO
2weight content be 5.8%;
Iron ore concentrate is added water and makes the iron ore concentrate ore pulp of weight concentration 15%; Carry out preliminary election magnetic separation, magnetic field intensity is 100 oersteds, obtains pre-concentrate selection, grade 68%, weight concentration 40%;
Pre-concentrate selection is carried out classification by cyclone, and feed force is 0.13MPa, the weight concentration 10% of the overflow of acquisition, the weight concentration 65% of underflow;
Underflow is placed in Ball-stirring mill is levigate makes levigate ore deposit, in levigate ore deposit, fineness-325 object part accounts for 90% of levigate ore deposit gross weight, then passes through cyclone classification after being mixed with pre-concentrate selection in levigate ore deposit;
Secondary magnetic separation is carried out in the overflow that classification obtains, and magnetic field intensity is 1000 oersteds, and the concentrate of acquisition is two concentrate selections, grade 69%, and weight concentration is 30%, SiO
2weight content be 1%; Underflow be placed in Ball-stirring mill levigate time, the filling rate of Ball-stirring mill is 35%;
Two concentrate selections are diluted with water to weight concentration 15%, then carry out three magnetic separation, magnetic field intensity is 100 oersteds, and the concentrate of acquisition is three concentrate selections, grade 71.0%;
Three concentrate selections are added water and is adjusted to weight concentration 30%, add cation-collecting agent lauryl amine, addition is 30g/t tri-concentrate selection, is then placed in reverse flotation equipment and carries out reverse flotation and roughly select, controlling the reverse flotation time of roughly selecting is 20min, and the concentrate of acquisition is for roughly selecting ore deposit; Roughly select the grade 71.3%, SiO in ore deposit
2weight content be 0.1%;
Add cation-collecting agent lauryl amine to roughly selecting in ore deposit, addition is that 30g/t roughly selects ore deposit, and being then placed in reverse flotation equipment, to carry out reverse flotation selected, and the time controlling reverse flotation selected is 20min, and the concentrate of acquisition is extraction of superpure concentrate of magnetite; The Iron grade of extraction of superpure concentrate of magnetite is 71.8%, SiO
2weight content be 0.1%; The overall recovery of iron is 85%.
Embodiment 2
The raw material adopted is the iron ore concentrate of grade 67%, and the weight content that the part of granularity-0.074mm accounts for 90%, FeO of gross weight is 28%, SiO
2weight content be 4.5%;
Iron ore concentrate is added water and makes the iron ore concentrate ore pulp of weight concentration 25%; Carry out preliminary election magnetic separation, magnetic field intensity is 200 oersteds, obtains pre-concentrate selection, grade 69%, weight concentration 50%;
Pre-concentrate selection is carried out classification by cyclone, and feed force is 0.16MPa, the weight concentration 20% of the overflow of acquisition, the weight concentration 68% of underflow;
Underflow is placed in Ball-stirring mill is levigate makes levigate ore deposit, in levigate ore deposit, fineness-325 object part accounts for 93% of levigate ore deposit gross weight, then passes through cyclone classification after being mixed with pre-concentrate selection in levigate ore deposit;
Secondary magnetic separation is carried out in the overflow that classification obtains, and magnetic field intensity is 1500 oersteds, and the concentrate of acquisition is two concentrate selections, grade 69%, and weight concentration is 35%, SiO
2weight content be 2%; Underflow be placed in Ball-stirring mill levigate time, the filling rate of Ball-stirring mill is 40%;
Two concentrate selections are diluted with water to weight concentration 20%, then carry out three magnetic separation, magnetic field intensity is 200 oersteds, and the concentrate of acquisition is three concentrate selections, grade 70.8%;
Added water by three concentrate selections and be adjusted to weight concentration 25%, add cation-collecting agent ether amine, addition is 50g/t tri-concentrate selection, is then placed in reverse flotation equipment and carries out reverse flotation and roughly select, and controlling the reverse flotation time of roughly selecting is 15min, and the concentrate of acquisition is for roughly selecting ore deposit; Roughly select the grade 71.4%, SiO in ore deposit
2weight content be 0.2%;
Add cation-collecting agent ether amine to roughly selecting in ore deposit, addition is that 50g/t roughly selects ore deposit, and being then placed in reverse flotation equipment, to carry out reverse flotation selected, and the time controlling reverse flotation selected is 15min, and the concentrate of acquisition is extraction of superpure concentrate of magnetite; The Iron grade of extraction of superpure concentrate of magnetite is 71.9%, SiO
2weight content be 0.2%; The overall recovery of iron is 81%.
Embodiment 3
The raw material adopted is the iron ore concentrate of grade 60%, and the weight content that the part of granularity-0.074mm accounts for 60%, FeO of gross weight is 29%, SiO
2weight content be 5.1%;
Iron ore concentrate is added water and makes the iron ore concentrate ore pulp of weight concentration 30%; Carry out preliminary election magnetic separation, magnetic field intensity is 300 oersteds, obtains pre-concentrate selection, grade 70%, weight concentration 60%;
Pre-concentrate selection is carried out classification by cyclone, and feed force is 0.20MPa, the weight concentration 25% of the overflow of acquisition, the weight concentration 71% of underflow;
Underflow is placed in Ball-stirring mill is levigate makes levigate ore deposit, in levigate ore deposit, fineness-325 object part accounts for 94% of levigate ore deposit gross weight, then passes through cyclone classification after being mixed with pre-concentrate selection in levigate ore deposit;
Secondary magnetic separation is carried out in the overflow that classification obtains, and magnetic field intensity is 2000 oersteds, and the concentrate of acquisition is two concentrate selections, grade 71%, and weight concentration is 40%, SiO
2weight content be 1.2%; Underflow be placed in Ball-stirring mill levigate time, the filling rate of Ball-stirring mill is 50%;
Two concentrate selections are diluted with water to weight concentration 25%, then carry out three magnetic separation, magnetic field intensity is 300 oersteds, and the concentrate of acquisition is three concentrate selections, grade 71.1%;
Three concentrate selections are added water and is adjusted to weight concentration 25%, add cation-collecting agent lauryl amine, addition is 80g/t tri-concentrate selection, is then placed in reverse flotation equipment and carries out reverse flotation and roughly select, controlling the reverse flotation time of roughly selecting is 15min, and the concentrate of acquisition is for roughly selecting ore deposit; Roughly select the grade 71.4%, SiO in ore deposit
2weight content be 0.3%;
Add cation-collecting agent lauryl amine to roughly selecting in ore deposit, addition is that 80g/t roughly selects ore deposit, and being then placed in reverse flotation equipment, to carry out reverse flotation selected, and the time controlling reverse flotation selected is 15min, and the concentrate of acquisition is extraction of superpure concentrate of magnetite; The Iron grade of extraction of superpure concentrate of magnetite is 72%, SiO
2weight content be 0.3%; The overall recovery of iron is 76%.
Embodiment 4
The raw material adopted is the iron ore concentrate of grade 63%, and the weight content that the part of granularity-0.074mm accounts for 70%, FeO of gross weight is 26%, SiO
2weight content be 4.8%;
Iron ore concentrate is added water and makes the iron ore concentrate ore pulp of weight concentration 35%; Carry out preliminary election magnetic separation, magnetic field intensity is 400 oersteds, obtains pre-concentrate selection, grade 68%, weight concentration 55%;
Pre-concentrate selection is carried out classification by cyclone, and feed force is 0.25MPa, the weight concentration 30% of the overflow of acquisition, the weight concentration 73% of underflow;
Underflow is placed in Ball-stirring mill is levigate makes levigate ore deposit, in levigate ore deposit, fineness-325 object part accounts for 95% of levigate ore deposit gross weight, then passes through cyclone classification after being mixed with pre-concentrate selection in levigate ore deposit;
Secondary magnetic separation is carried out in the overflow that classification obtains, and magnetic field intensity is 1000 oersteds, and the concentrate of acquisition is two concentrate selections, grade 69%, and weight concentration is 45%, SiO
2weight content be 1.6%; Underflow be placed in Ball-stirring mill levigate time, the filling rate of Ball-stirring mill is 60%;
Two concentrate selections are diluted with water to weight concentration 35%, then carry out three magnetic separation, magnetic field intensity is 400 oersteds, and the concentrate of acquisition is three concentrate selections, grade 70.5%;
Added water by three concentrate selections and be adjusted to weight concentration 30%, add cation-collecting agent ether amine, addition is 100g/t tri-concentrate selection, is then placed in reverse flotation equipment and carries out reverse flotation and roughly select, and controlling the reverse flotation time of roughly selecting is 15min, and the concentrate of acquisition is for roughly selecting ore deposit; Roughly select the grade 71.2%, SiO in ore deposit
2weight content be 0.2%;
Add cation-collecting agent ether amine to roughly selecting in ore deposit, addition is that 100g/t roughly selects ore deposit, and being then placed in reverse flotation equipment, to carry out reverse flotation selected, and the time controlling reverse flotation selected is 15min, and the concentrate of acquisition is extraction of superpure concentrate of magnetite; The Iron grade of extraction of superpure concentrate of magnetite is 71.5%, SiO
2weight content be 0.2%; The overall recovery of iron is 70%.
Embodiment 5
The raw material adopted is the iron ore concentrate of grade 66%, and the weight content that the part of granularity-0.074mm accounts for 75%, FeO of gross weight is 29%, SiO
2weight content be 5.3%;
Iron ore concentrate is added water and makes the iron ore concentrate ore pulp of weight concentration 45%; Carry out preliminary election magnetic separation, magnetic field intensity is 500 oersteds, obtains pre-concentrate selection, grade 70%, weight concentration 45%;
Pre-concentrate selection is carried out classification by cyclone, and feed force is 0.20MPa, the weight concentration 40% of the overflow of acquisition, the weight concentration 75% of underflow;
Underflow is placed in Ball-stirring mill is levigate makes levigate ore deposit, in levigate ore deposit, fineness-325 object part accounts for 90% of levigate ore deposit gross weight, then passes through cyclone classification after being mixed with pre-concentrate selection in levigate ore deposit;
Secondary magnetic separation is carried out in the overflow that classification obtains, and magnetic field intensity is 2000 oersteds, and the concentrate of acquisition is two concentrate selections, grade 71%, and weight concentration is 50%, SiO
2weight content be 1.8%; Underflow be placed in Ball-stirring mill levigate time, the filling rate of Ball-stirring mill is 80%;
Two concentrate selections are diluted with water to weight concentration 45%, then carry out three magnetic separation, magnetic field intensity is 500 oersteds, and the concentrate of acquisition is three concentrate selections, grade 71.2%;
Three concentrate selections are added water and is adjusted to weight concentration 40%, add cation-collecting agent lauryl amine, addition is 120g/t tri-concentrate selection, is then placed in reverse flotation equipment and carries out reverse flotation and roughly select, controlling the reverse flotation time of roughly selecting is 10min, and the concentrate of acquisition is for roughly selecting ore deposit; Roughly select the grade 71.5%, SiO in ore deposit
2weight content be 0.1%;
Add cation-collecting agent lauryl amine amine to roughly selecting in ore deposit, addition is that 120g/t roughly selects ore deposit, and being then placed in reverse flotation equipment, to carry out reverse flotation selected, and the time controlling reverse flotation selected is 10min, and the concentrate of acquisition is extraction of superpure concentrate of magnetite; The Iron grade of extraction of superpure concentrate of magnetite is 72%, SiO
2weight content be 0.1%; The overall recovery of iron is 65%.
Claims (2)
1. magnetic separation-reverse flotation prepares a method for extraction of superpure concentrate of magnetite, it is characterized in that carrying out according to the following steps:
(1) raw material adopted is the iron ore concentrate of grade 60 ~ 67%, adds water and makes the iron ore concentrate ore pulp of weight concentration 15 ~ 45%; Iron ore concentrate ore pulp electromagnetic refiner is carried out preliminary election magnetic separation, and magnetic field intensity during preliminary election magnetic separation is 100 ~ 500 oersteds, obtains pre-concentrate selection, grade 68 ~ 70%, weight concentration 40 ~ 60%; In described iron ore concentrate, the part of granularity 0.074mm accounts for 60 ~ 90% of whole iron ore concentrate gross weight, and in iron ore concentrate, the weight content of FeO is 26 ~ 29%, SiO
2weight content be 4.5 ~ 5.8%;
(2) pre-concentrate selection is passed through cyclone classification, control feed force is 0.13 ~ 0.25MPa, the weight concentration 10 ~ 40% of the overflow that classification obtains, the weight concentration 65 ~ 75% of the underflow of acquisition; Underflow is placed in Ball-stirring mill is levigate makes levigate ore deposit, in levigate ore deposit, fineness 325 object part accounts for 90 ~ 99% of levigate ore deposit gross weight, then passes through cyclone classification after being mixed with pre-concentrate selection in levigate ore deposit;
(3) overflow that classification obtains adopts magnetic separator to carry out secondary magnetic separation, and magnetic field intensity during secondary magnetic separation is 1000 ~ 2000 oersteds, and the concentrate of acquisition is two concentrate selections, grade 69 ~ 71%, and weight concentration is 30 ~ 50%;
(4) two concentrate selections are diluted with water to weight concentration 15 ~ 45%, then adopt magnetic separator to carry out three magnetic separation, magnetic field intensity during three magnetic separation is 100 ~ 500 oersteds, and the concentrate of acquisition is three concentrate selections, grade 70.5 ~ 71.2%;
(5) three concentrate selections are added water be adjusted to weight concentration 25 ~ 40%, add cation-collecting agent, addition is 30 ~ 120g/t tri-concentrate selection, is then placed in reverse flotation equipment and carries out reverse flotation and roughly select, controlling the reverse flotation time of roughly selecting is 10 ~ 20min, and the concentrate of acquisition is for roughly selecting ore deposit; Add cation-collecting agent to roughly selecting in ore deposit, addition is that 30 ~ 120g/t roughly selects ore deposit, and being then placed in reverse flotation equipment, to carry out reverse flotation selected, and the time controlling reverse flotation selected is 10 ~ 20min, and the concentrate of acquisition is extraction of superpure concentrate of magnetite; Described cation-collecting agent is lauryl amine or ether amine.
2. a kind of magnetic separation-reverse flotation according to claim 1 prepares the method for extraction of superpure concentrate of magnetite, it is characterized in that the Iron grade of described extraction of superpure concentrate of magnetite is 71.5 ~ 72%, SiO
2weight content be 0.1 ~ 0.3%.
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| CN105063264B (en) * | 2015-09-02 | 2017-05-31 | 东北大学 | A kind of method for preparing pure iron |
| CN106269212A (en) * | 2016-10-14 | 2017-01-04 | 鞍钢集团矿业有限公司 | A kind of magnetic separation grading system is for the method for extraction of superpure concentrate of magnetite |
| CN107271438B (en) * | 2017-06-01 | 2020-04-07 | 东北大学 | Method for judging feasibility of preparing super iron ore concentrate from common iron ore concentrate |
| CN109374608B (en) * | 2018-10-18 | 2021-05-28 | 东北大学 | Method for detecting amine collecting agent by spectrophotometry |
| CN110947516A (en) * | 2019-12-21 | 2020-04-03 | 宝钢集团新疆八一钢铁有限公司 | Zinc reduction method for iron ore concentrate |
| CN112121992A (en) * | 2020-09-16 | 2020-12-25 | 安徽马钢张庄矿业有限责任公司 | High-grade iron ore concentrate beneficiation method |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU533397A1 (en) * | 1974-05-08 | 1976-10-30 | Method for producing iron concentrates by wet magnetic separation | |
| SU1546162A1 (en) * | 1988-05-03 | 1990-02-28 | Научно-исследовательский и проектный институт по обогащению и агломерации руд черных металлов "Механобрчермет" | Method of dressing iron ores and concentrates |
| CN1343626A (en) * | 2000-09-19 | 2002-04-10 | 张美焦 | Industrial process for preparing high-purity super-fine magnetite powder |
| CN1718779A (en) * | 2005-07-07 | 2006-01-11 | 东北大学 | Preparation method of super iron concentrate |
| CN101376922A (en) * | 2008-09-25 | 2009-03-04 | 中国科学院青海盐湖研究所 | Extraction of superpure concentrate of magnetite and preparation thereof |
| CN101632957A (en) * | 2008-07-22 | 2010-01-27 | 鞍钢集团矿业公司 | Process for processing hematite ore containing iron carbonate |
| CN103100485A (en) * | 2012-12-26 | 2013-05-15 | 东北大学 | Iron ore flotation gangue recleaning technology |
-
2014
- 2014-03-26 CN CN201410115866.7A patent/CN103861733B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU533397A1 (en) * | 1974-05-08 | 1976-10-30 | Method for producing iron concentrates by wet magnetic separation | |
| SU1546162A1 (en) * | 1988-05-03 | 1990-02-28 | Научно-исследовательский и проектный институт по обогащению и агломерации руд черных металлов "Механобрчермет" | Method of dressing iron ores and concentrates |
| CN1343626A (en) * | 2000-09-19 | 2002-04-10 | 张美焦 | Industrial process for preparing high-purity super-fine magnetite powder |
| CN1718779A (en) * | 2005-07-07 | 2006-01-11 | 东北大学 | Preparation method of super iron concentrate |
| CN101632957A (en) * | 2008-07-22 | 2010-01-27 | 鞍钢集团矿业公司 | Process for processing hematite ore containing iron carbonate |
| CN101376922A (en) * | 2008-09-25 | 2009-03-04 | 中国科学院青海盐湖研究所 | Extraction of superpure concentrate of magnetite and preparation thereof |
| CN103100485A (en) * | 2012-12-26 | 2013-05-15 | 东北大学 | Iron ore flotation gangue recleaning technology |
Non-Patent Citations (3)
| Title |
|---|
| "某矿山铁精矿制备超级铁精矿的试验研究";张敏等;《矿冶工程》;20120831;第32卷;第157-159页 * |
| "河北省某铁矿石制取超级铁精矿试验研究";王素等;《中国矿业》;20130531;第22卷(第5期);第96-98页 * |
| "超级铁精矿生产技术的研究";刘耀青;《矿冶》;19970331;第6卷(第1期);第38-41页 * |
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