CN102161017A - Magnetic separation method of complex and difficultly separated ironoxideore by using medicament - Google Patents
Magnetic separation method of complex and difficultly separated ironoxideore by using medicament Download PDFInfo
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- CN102161017A CN102161017A CN2010105848625A CN201010584862A CN102161017A CN 102161017 A CN102161017 A CN 102161017A CN 2010105848625 A CN2010105848625 A CN 2010105848625A CN 201010584862 A CN201010584862 A CN 201010584862A CN 102161017 A CN102161017 A CN 102161017A
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- ferric oxide
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Abstract
The invention discloses a magnetic separation method of complex and difficultly separated ironoxideore by using medicament, which belongs to the technical field of ore separation. The method comprises the following steps of: in an ore milling process for the complex and difficultly separated ironoxideore or in an ore pulp not yet conveyed into a magnetic separator, adding sodium hexametaphosphate and sodium silicate with stirring; and conveying the ore pulp into the magnetic separator for magnetic separation, wherein 50 to 1,000g of sodium hexametaphosphate and 200 to 2,000g of sodium silicate are added into each ton of ironoxideore; the sodium hexametaphosphate is a selective flocculant of ferric oxide; and the sodium silicate is a dispersing agent of a gangue mineral and mud. Under the action of flocculation, fine ferric oxide particles in the ore pulp are flocculated and bonded mutually; because the flocculation volume of the ferric oxide is more than the volume of the fine ferric oxide particles, the magnetic force applied to the ferric oxide is also stronger and then all kinds of interference in a magnetic separation process can be effectively reduced; and the dispersing agent can effectively reduce the adhesion of ore mud and gangue to the fine ferric oxide particles. By the method, the grade of a concentrate obtained through magnetic separation on the complex and difficultly separated ironoxideore and the mineral separation recovery percentage can be obviously improved.
Description
Technical field
The invention belongs to the technique of preparing field of ferrous metal ore, be specifically related to the magnetic selection method that complicated difficulty is selected iron oxide ore.
Background technology
The complicated difficult choosing of a lot of iron oxide ores, its grade is low, impurity content is high, and these iron oxide ores exist the gained concentrate grade low, the problem that recovery rate in ore-dressing is low if carry out magnetic separation with existing magnetic separation process always.
Summary of the invention
The objective of the invention is to overcome the shortcoming of prior art, a kind of magnetic selection method of new iron oxide ore is provided, promptly complicated difficulty is selected the medicament magnetic method of iron oxide ore, selects the grade and the recovery rate in ore-dressing of iron oxide ore magnetic separation gained concentrate to improve complicated difficulty.
The technical scheme of the inventive method is: complicated difficulty is being selected in the grinding process of iron oxide ore, or send in the preceding ore pulp of magnetic separator, add calgon and waterglass down in stirring condition, then the gained ore pulp is sent into magnetic separator and advance magnetic separation, iron oxide ore per ton adds calgon 50～1000 grams, adds waterglass 200～2000 grams.Preferably add calgon and waterglass in the ore pulp before sending into magnetic separator.Iron oxide ore per ton adds calgon and is preferably 500～600 grams, adds waterglass and is preferably 800～1000 grams.Calgon and waterglass can add simultaneously, also can add waterglass earlier and add calgon again, or add calgon earlier and add waterglass again.
The know-why of the inventive method: calgon is the selective flocculant of iron oxide in the iron oxide ore, and waterglass is the dispersant of gangue mineral and mud in the iron oxide ore.Under flocculation, it is bonding to impel iron oxide particulate in the ore pulp to flocculate mutually, because the floc sedimentation volume ratio iron oxide particulate of iron oxide is big, suffered magnetic force is also big, thereby can effectively reduce the various interference in the magnetic separation process; Dispersant can effectively reduce sludge and gangue attaching the iron oxide particulate.Therefore the inventive method can significantly improve grade and the recovery rate in ore-dressing that complicated difficulty is selected iron oxide ore magnetic separation gained concentrate.
Beneficial effect of the present invention: adopt the inventive method to carry out the magnetic separation of iron oxide ore, the existing magnetic selection method of the grade of gained concentrate and recovery rate in ore-dressing significantly improves.
The specific embodiment
Embodiment 1: the top layer hematite-limonite that the weathering of somewhere, Yunnan is serious, head grade iron content 27%.In the ore pulp of ore grinding gained, under stirring condition first quick and back slow, add calgon and waterglass simultaneously, then the gained ore pulp is sent into pulsating high gradient magnetic separator and carry out magnetic separation.Iron ore per ton adds calgon 500 grams, adds waterglass 1000 grams.The grade of magnetic separation gained concentrate is 49%, and recovery rate in ore-dressing is 55%.
As a comparison, this ore deposit not grade of adding medicine magnetic separation gained concentrate is 35%, and recovery rate in ore-dressing is 38%.
Embodiment 2: the somewhere, Yunnan contains the plumbous mine tailing of iron oxide, iron content 23%.To sending in the ore pulp before the magnetic separator, add waterglass down earlier in stirring condition, add calgon subsequently, then the gained ore pulp is sent into pulsating high gradient magnetic separator and carry out magnetic separation.Iron ore per ton adds calgon 100 grams, adds waterglass 1800 grams.The grade of magnetic separation gained concentrate is 41%, and recovery rate in ore-dressing is 60%.
As a comparison, this ore deposit not grade of adding medicine magnetic separation gained concentrate is 37%, and recovery rate in ore-dressing is 42%.
Embodiment 3: somewhere, Yunnan bloodstone, iron content 35%.Add waterglass and calgon to carrying out simultaneously in the process of ore grinding, then the gained ore pulp is sent into pulsating high gradient magnetic separator and carry out magnetic separation with rod mill.Iron ore per ton adds calgon 800 grams, adds waterglass 500 grams.The grade of magnetic separation gained concentrate is 51%, and recovery rate in ore-dressing is 65%.
As a comparison, this ore deposit not grade of adding medicine magnetic separation gained concentrate is 47%, and recovery rate in ore-dressing is 50%.
Embodiment 4: somewhere vanadium ferrotianium mine tailing, and iron content 13%, granularity accounts for more than 80% less than 300 purpose ore particles.To sending in the ore pulp before the magnetic separator, add waterglass and calgon down in stirring condition, then the gained ore pulp is sent into pulsating high gradient magnetic separator and carry out magnetic separation.Ore deposit per ton adds calgon 1000 grams, adds waterglass 2000 grams.The grade of magnetic separation gained concentrate is 38%, and recovery rate in ore-dressing is 80%.
As a comparison, this ore deposit not grade of adding medicine magnetic separation gained concentrate is 25%, and recovery rate in ore-dressing is 60%.
Embodiment 5: the poor magnetic iron ore of somewhere fine grain teeth cloth, and iron content 17%, granularity accounts for more than 75% less than 400 purpose ore particles.To sending in the ore pulp before the permanent magnetic pulley formula magnetic separator, add waterglass and calgon down in stirring condition, then the gained ore pulp is sent into this magnetic separator and carry out magnetic separation.Ore deposit per ton adds calgon 700 grams, adds waterglass 1500 grams.The grade of magnetic separation gained concentrate is 65%, and recovery rate in ore-dressing is 75%.
As a comparison, this ore deposit not grade of adding medicine magnetic separation gained concentrate is 50%, and recovery rate in ore-dressing is 60%.
Embodiment 6: the iron content tail red mud ore deposit of somewhere aluminium ore, iron content 23%.To sending in the ore pulp before the upright ring pulsation magnetic separator, add waterglass and calgon down in stirring condition, then the gained ore pulp is sent into this magnetic separator and carry out magnetic separation.Ore deposit per ton adds calgon 500 grams, adds waterglass 2000 grams.The grade of magnetic separation gained concentrate is 52%, and recovery rate in ore-dressing is 65%.
As a comparison, this ore deposit not grade of adding medicine magnetic separation gained concentrate is 48%, and recovery rate in ore-dressing is 55%.
Only the present invention is further illustrated for above embodiment, but it is described to the invention is not restricted to embodiment.
Claims (3)
1. a complicated difficulty is selected the medicament magnetic selection method of iron oxide ore, it is characterized in that: complicated difficulty is being selected in the grinding process of iron oxide ore, or send in the preceding ore pulp of magnetic separator, add calgon and waterglass down in stirring condition, then the gained ore pulp is sent into magnetic separator and carry out magnetic separation, iron oxide ore per ton adds calgon 50～1000 grams, adds waterglass 200～2000 grams.
2. select the medicament magnetic selection method of iron oxide ore as the said complicated difficulty of claim 1, it is characterized in that: add calgon and waterglass in the ore pulp before sending into magnetic separator.
3. select the medicament magnetic selection method of iron oxide ore as the said complicated difficulty of claim 1, it is characterized in that: iron oxide ore per ton adds calgon 500～600 grams and waterglass 800～1000 grams.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105848625A CN102161017A (en) | 2010-12-13 | 2010-12-13 | Magnetic separation method of complex and difficultly separated ironoxideore by using medicament |
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| CN2010105848625A CN102161017A (en) | 2010-12-13 | 2010-12-13 | Magnetic separation method of complex and difficultly separated ironoxideore by using medicament |
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| CN102161017A true CN102161017A (en) | 2011-08-24 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102580844A (en) * | 2012-02-16 | 2012-07-18 | 中南大学 | Method for improving grade of magnetic concentrate by using reagent |
| CN102631981A (en) * | 2012-04-23 | 2012-08-15 | 沅江科源机械设备制造有限公司 | Magnetic suspension type combined beneficiation method of mixed iron ores |
| CN102849831A (en) * | 2012-07-23 | 2013-01-02 | 黑旋风工程机械开发有限公司 | Formula of composite flocculating agent |
| CN104138801A (en) * | 2014-07-04 | 2014-11-12 | 赣州金环磁选设备有限公司 | Method for improving index of high-gradient magnetic concentrate |
| CN104289308A (en) * | 2014-10-27 | 2015-01-21 | 东华理工大学 | Method for removing impurities in iron oxide by combining selective flocculating agent with superconducting magnetic separation |
| CN105695034A (en) * | 2016-04-15 | 2016-06-22 | 广东赛因迪科技股份有限公司 | Method and device for desulfurizing coal before combustion |
| CN106391302A (en) * | 2016-11-10 | 2017-02-15 | 江苏省冶金设计院有限公司 | High-intensity magnetic disperse magnetic separation device and method for low-intensity magnetic separation tailings containing magnetic mica |
| CN113560030A (en) * | 2021-06-09 | 2021-10-29 | 中南大学 | Beneficiation method of vanadium-titanium magnetite concentrate |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1149005A (en) * | 1996-09-19 | 1997-05-07 | 武汉工业大学北京研究生部 | Iron and titanium removing process for coal series hard kaolinite by magnetic method |
| JP2002258538A (en) * | 2001-02-28 | 2002-09-11 | Canon Inc | Developer for replenishment and developing method |
| CN101264466A (en) * | 2008-05-12 | 2008-09-17 | 昆明理工大学 | High phosphorus and sulphur siderite full flotation mineral separation method |
| JP2009237567A (en) * | 2008-03-05 | 2009-10-15 | Canon Inc | Filter cloth traveling type belt filter and production method of toner particle |
-
2010
- 2010-12-13 CN CN2010105848625A patent/CN102161017A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1149005A (en) * | 1996-09-19 | 1997-05-07 | 武汉工业大学北京研究生部 | Iron and titanium removing process for coal series hard kaolinite by magnetic method |
| JP2002258538A (en) * | 2001-02-28 | 2002-09-11 | Canon Inc | Developer for replenishment and developing method |
| JP2009237567A (en) * | 2008-03-05 | 2009-10-15 | Canon Inc | Filter cloth traveling type belt filter and production method of toner particle |
| CN101264466A (en) * | 2008-05-12 | 2008-09-17 | 昆明理工大学 | High phosphorus and sulphur siderite full flotation mineral separation method |
Non-Patent Citations (2)
| Title |
|---|
| 《金属矿山》 20100430 牛福生等 某鲕状赤铁矿絮凝-强磁选试验研究 , 第4期 * |
| 牛福生等: "某鲕状赤铁矿絮凝—强磁选试验研究", 《金属矿山》 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102580844A (en) * | 2012-02-16 | 2012-07-18 | 中南大学 | Method for improving grade of magnetic concentrate by using reagent |
| CN102580844B (en) * | 2012-02-16 | 2014-02-19 | 中南大学 | Method for improving grade of magnetic concentrate by using reagent |
| CN102631981A (en) * | 2012-04-23 | 2012-08-15 | 沅江科源机械设备制造有限公司 | Magnetic suspension type combined beneficiation method of mixed iron ores |
| CN102849831A (en) * | 2012-07-23 | 2013-01-02 | 黑旋风工程机械开发有限公司 | Formula of composite flocculating agent |
| CN104138801A (en) * | 2014-07-04 | 2014-11-12 | 赣州金环磁选设备有限公司 | Method for improving index of high-gradient magnetic concentrate |
| CN104289308A (en) * | 2014-10-27 | 2015-01-21 | 东华理工大学 | Method for removing impurities in iron oxide by combining selective flocculating agent with superconducting magnetic separation |
| CN105695034A (en) * | 2016-04-15 | 2016-06-22 | 广东赛因迪科技股份有限公司 | Method and device for desulfurizing coal before combustion |
| CN106391302A (en) * | 2016-11-10 | 2017-02-15 | 江苏省冶金设计院有限公司 | High-intensity magnetic disperse magnetic separation device and method for low-intensity magnetic separation tailings containing magnetic mica |
| CN113560030A (en) * | 2021-06-09 | 2021-10-29 | 中南大学 | Beneficiation method of vanadium-titanium magnetite concentrate |
| CN113560030B (en) * | 2021-06-09 | 2022-11-08 | 中南大学 | Beneficiation method of vanadium-titanium magnetite concentrate |
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Application publication date: 20110824 |