CN101733195A - Combined ore dressing process for iron ore concentrate powder and boron ore concentrate powder produced by magnetic ludwigite - Google Patents
Combined ore dressing process for iron ore concentrate powder and boron ore concentrate powder produced by magnetic ludwigite Download PDFInfo
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Abstract
The invention discloses a combined ore dressing process for iron ore concentrate powder and boron ore concentrate powder produced by magnetic ludwigite, which comprises the following steps: (1) coarse crushing; (2) fine crushing; (3) pulverizing; (4) grade-I ore dressing, wherein the magnetic field intensity is 1,000 to 1,450GS, and the rotating speed of a magnetic drum is 20 to 160 revolutions per minute; (5) grade-II ore dressing, wherein the magnetic field intensity is 800 to 1,000GS, and the rotating speed of the magnetic drum is 100 to 200 revolutions per minute; (6) grade-III ore dressing, wherein the magnetic field intensity is 400 to 800GS, and the rotating speed of the magnetic drum is 200 to 350 revolutions per minute; (7) stirring, wherein the mass ratio of the iron powder to the water is 1:1-1.5; (8) wet magnetic separation, wherein the magnetic field intensity is 1,450 to 17,500GS, and the rotating speed of the magnetic drum is 30 to 60 revolutions per minute; (9) dehydrating till the moisture content is 6 to 10 percent to obtain the iron ore concentrate powder; and (10) feeding the dehydrated water to a magnetic separator for recycling, wherein the obtained tailing is the boron ore concentrate powder. The combined ore dressing process has the advantages that: two products are obtained; the ore utilization rate is high; the wastewater emission is low, and is only one tenth that of the traditional process; and environment pollution is reduced.
Description
Technical field: the present invention relates to a kind of mining industry beneficiation method, especially relate to a kind of magnetic ludwigite that contains and produce fine iron breeze and boron concentrate powder combined mineral dressing technology method.
Background technology: contain magnetic ludwigite beneficiation method, what adopt at present is wet processing and thermal process (high-temperature calcination), ore-dressing technique is also immature, the major defect that exists is that the ore resource utilization rate is lower, generally below 50%, and the wet method water consumption is higher, and one ton of fine iron breeze of every production (iron content＜54%) needs water 7-10 ton, pollute greatly, the boracic mine tailing can not make full use of; Pyrogenic process ore dressing power consumption is high especially, does not possess the condition of actual industrial production.
Summary of the invention: the purpose of this invention is to provide a kind of ore utilization rate height, water saving is polluted for a short time, and fine iron breeze and boron concentrate opaque amount are high contains magnetic ludwigite production fine iron breeze and boron concentrate powder combined mineral dressing technology method; The magnetic ludwigite that contains of the present invention is produced fine iron breeze and boron concentrate powder combined mineral dressing technology method, and as follows: technological process is: 1. ore particle diameter＞40mm, and through coarse crushing, particle diameter is 10～40mm after the coarse crushing; 2. in small, broken bits: the ore after the coarse crushing enters fine crusher and pulverizes, and particle diameter is crushed to 1～10mm; 3. abrasive dust: the ore after in small, broken bits enters flour mill and makes 120～300 order breezes; 4. I level ore deposit choosing: 120～300 order breezes that flour mill is made enter I level magnetic separator, and the magnetic separator magnetic field intensity is 1000～1450GS, and the magnetic drum rotating speed is 20～160 rev/mins; 5. II level ore deposit choosing: the iron powder after the choosing of I level ore deposit enters II level magnetic separator, and the magnetic separator magnetic field intensity is 800～1000GS, and the magnetic drum rotating speed is 160～200 rev/mins; 6. III level ore deposit choosing: the iron powder after the choosing of II level ore deposit enters III level magnetic separator, and the magnetic separator magnetic field intensity is 400～800GS, and the magnetic drum rotating speed is 200～350 rev/mins; 7. stir: the iron powder after the choosing of III level ore deposit enters iron powder slip make-up tank and stirs, and mixes, and iron powder is 1: 1～1.5 with the water quality ratio, and mixing speed is 30～100 rev/mins; 8. wet feed magnetic separation: the iron powder slip through mixing enters magnetic separator, and the magnetic separator magnetic field intensity is 1450～1750GS, and the magnetic drum rotating speed is 30～60 rev/mins; 9. the fine iron breeze slip enters the vacuum magnet filter and dewaters after magnetic separation: dehydration makes fine iron breeze to moisture 6～10%; 10. the water of deviating from through the vacuum magnet filter enters the wet feed magnetic separator and recycles, and the mine tailing of above gained is the boron concentrate powder.
Ore coarse crushing, in small, broken bits, indication range that abrasive dust is controlled are that non-selective index is a processing back breeze particle size distribution data.
Ore deposits at different levels select used ore deposit to select machine magnetic field intensity and magnetic drum rotating speed mainly to select according to ore magnetic susceptibility (than magnetic coefficient), and magnetic susceptibility is more than 65%, and magnetic field intensity is 400～800GS; Magnetic susceptibility 45～65%, magnetic field intensity are 800～1000GS; Magnetic susceptibility is lower than 45%, and magnetic field intensity is 1000～1450GS; The choosing of water medium influence wet feed ore deposit, magnetic field intensity is elected 1450～1750GS as; The selection magnetic field intensity will be in conjunction with magnetic separator equipment, general magnetic separator magnetic field intensity is and is fixed on the certain limit, the magnetic drum rotating speed also determines according to separating breeze impurity difficulty or ease, I, II, III level ore deposit select used magnetic separator magnetic drum rotating speed to accelerate successively, be III level magnetic separator magnetic drum rotating speed greater than II level magnetic separator magnetic drum rotating speed, II level magnetic separator magnetic drum rotating speed is greater than I level magnetic separator magnetic drum rotating speed.Dust arrester all is housed on every dry separator, can captures the dust that produces in the production process effectively.
Process of the present invention can adopt continued operation or intermittently operated.
This process is to containing (mass parts is as follows) in the magnetic ludwigite: contain Fe
3O
415～40%; Fe
2O
35～20%; MgO 20～40%; SiO
25～20%; B
2O
35～10% or CaCO
35～20% ore carries out associating magnetic separation and production, gets the smart opaque figureofmerit of iron and can reach TFe 60～65%; Si 1.5～4%; S 0.001～0.2%; P 0.001～0.005%, and its technical indicator reaches Ministry of Metallurgical Industry contains Fe 60% (level Four) to fine iron breeze requirement; Get boron concentrate opaque figureofmerit: B
2O
311～13%; MgO 20～45%; Fe
2O
34～9%, its technical indicator reaches the Ministry of Chemical Industry and contains B to producing boronation chemical products such as borax and boric acid
2O
3Ingredient requirement more than 10%.
This method is applicable to and contains magnetic ludwigite stone, contains magnetic ferro-boron ore, is not suitable for non magnetic ferro-boron ore.
The ore dressing principle and the effect of this process: in wet method, adopt the middle high magnetic field intensity of 1450～1750GS that ore pulp is carried out the ore deposit choosing, be that ore dressing is already generally acknowledged, along with the minimizing of boron resource with to lean ore and contain the exploitation of magnetic ludwigite (difficult ore dressing), high magnetic field intensity ore deposit choosing method is inapplicable in original, its reason is: contain magnetic ludwigite or paigeite ore dressing, adopt wet dressing, the smart powder impurity content of its finished iron is very high, the ore utilization rate is extremely low, and less than 50%, its boracic mine tailing is also discarded greatly because of water content, contaminated environment, the waste resource for the water resources shortage area, adopts wet production more difficult.Three grades of dry magnetic separations are mainly selected magnetic field intensity according to ludwigite magnetic susceptibility, earlier iron powder is separated the wet purification system that enters into, mine tailing then is moisture free boron concentrate powder, quality raw materials as production boronation chemical product, so comprehensive ore utilization rate reaches more than 98% essentially no discarded object.
The selected dry separator of this process is special magnetic separator (patent No. ZL2004200553980), this magnetic separator is because magnetic drum is 270 degree magnetic field areas, this is bigger more than 1/3 than common magnetic separator magnetic drum 120～180 degree magnetic field areas, help enhancing productivity, the magnetic drum inner magnet is a magnet, cause magnetic field between having or not, alternately to change, it is the moving principle of magnetic rolling and magnetic pendulum, in change procedure, iron powder is beated along with alternately changing of magnetic field, helps the rejecting of impurity, and magnetic drum is by waving magnetic field electric motor and frequency conversion master Electric Machine Control, its rotating speed is adjustable, has than remarkable advantages than conventional magnetic separator constant speed drive; Carry out selectivity adjustment campaign according to different ore kind situations, the breeze that magnetic susceptibility is higher adopts 200～350 rev/mins, enhances productivity; The breeze that magnetic susceptibility is lower adopts 20～160 rev/mins, guarantees product quality, and behind three grades of dry magnetic separations, mine tailing boron concentrate powder contains boron
2O
3＞10%, as boronation worker raw material production boronation chemical product, iron powder Fe＞54～58% further reach Fe60～65% through the wet purification ore dressing, and the smart powder content of iron improves Fe6～10% grade, further improves the economic benefit of iron essence.
The utilization rate that this process makes iron in ore is calculated by iron ore magnetic susceptibility and can be reached more than 92%, can make two kinds of products: i.e. the boron concentrate powder of fine iron breeze and mine tailing, its ore utilization rate reaches more than 98%, no generation of waste materials.
This process water consumption is few, it only is 1/10 of wet method consumption, and most water can recycle, wastewater discharge is few, reduces environmental pollution, and the fine iron breeze water content is few, reduce the transportation burden, mine tailings are that a kind of product is the boron concentrate powder, and no mine tailing discharging reaches the purpose that makes full use of resource; The dust that produces in the production process is captured by deduster, its Main Ingredients and Appearance is a boride, and recycle, can not cause environmental pollution, in sum, containing magnetic ludwigite production fine iron breeze and boron concentrate powder combined mineral dressing technology method is a kind of efficient height, good product quality, non-environmental-pollution, ore can access the beneficiation method of comprehensive utilization.
The specific embodiment:
Contain the magnetic ludwigite and produce fine iron breeze and boron concentrate powder combined mineral dressing technology method, it is characterized in that: its technological process is: 1. ore particle diameter＞40mm, and through coarse crushing, particle diameter is 10～40mm after the coarse crushing; 2. in small, broken bits: the ore after the coarse crushing enters fine crusher and pulverizes, and particle diameter is crushed to 1～10mm; 3. abrasive dust: the ore after in small, broken bits enters flour mill and makes 120～300 order breezes; 4. I level ore deposit choosing: 120～300 order breezes that flour mill is made enter I level magnetic separator, and the magnetic separator magnetic field intensity is 1000～1450GS, and the magnetic drum rotating speed is 20～160 rev/mins; 5. II level ore deposit choosing: the iron powder after the choosing of I level ore deposit enters II level magnetic separator, and the magnetic separator magnetic field intensity is 800～1000GS, and the magnetic drum rotating speed is 160～200 rev/mins; 6. III level ore deposit choosing: the iron powder after the choosing of II level ore deposit enters III level magnetic separator, and the magnetic separator magnetic field intensity is 400～800GS, and the magnetic drum rotating speed is 200～350 rev/mins; 7. stir: the iron powder after the choosing of III level ore deposit enters iron powder slip make-up tank and stirs, and mixes, and iron powder is 1: 1～1.5 with the water quality ratio, and mixing speed is 30～100 rev/mins; 8. wet feed magnetic separation: the iron powder slip through mixing enters magnetic separator, and the magnetic separator magnetic field intensity is 1450～17500GS, and the magnetic drum rotating speed is 30～60 rev/mins; 9. the fine iron breeze slip enters the vacuum magnet filter and dewaters after magnetic separation: dehydration makes fine iron breeze to moisture 6～10%; 10. the water of deviating from through the vacuum magnet filter enters the wet feed magnetic separator and recycles, and the mine tailing of above gained is the boron concentrate powder.
Embodiment one:
The ore source: Fengcheng City county, Dandong City, Liaoning Province leads to fort paigeite far away
Technical indicator: ore particle diameter: 50～400mm
Main Ingredients and Appearance: TFe 29.79%; B
2O
36.95%; SiO
28.45%; MgO23.48%; S 0.15%, contains TFe magnetic susceptibility 48.2%.
Process:
Adopt the continuous production processes method, ore feeding coal 8t/h delivers to fragmentation by GZ1 type electro-vibrating feeder (Shenyang Mine Machine Factory's manufacturing) with ore.
1. coarse crushing:
Equipment: PE250 * 400 jaw crushers (Shenyang Mine Machine Factory's manufacturing)
Disposal ability: 15～25t/h
Grinding particle size: ore enters equipment in small, broken bits after 10～40mm coarse crushing;
2. in small, broken bits:
Equipment: impact crusher CJ Φ 1000 * 700 (Shenyang Heavy Machinery Plant's manufacturing)
Disposal ability: 15～25t/h
Grinding particle size: 1～10mm back in small, broken bits ore enters abrasive dust equipment;
3. abrasive dust:
Equipment: 5R4119 raymond mill (Shanghai Metallurgy Mine Machinery Factory's manufacturing)
Disposal ability: 8～10t/h
The breeze particle diameter: breeze enters the choosing of I level ore deposit behind 120～300 orders (form different selected orders according to ore and the count difference) abrasive dust;
4. I level ore deposit choosing:
Equipment: GXT-18 magnetic separator (patent ZL2004200553980) magnetic drum effective magnetic field area is 270 degree discs
Magnetic field hunting frequency: 80～160 times/minute (adjustable)
Disposal ability: 18～22t/h
Magnetic field intensity: 1000～1450GS (magnetic separator magnetic field intensity scope)
Magnetic drum rotating speed: 20～160 rev/mins (frequency control)
Draw two kinds of products after the I level ore deposit choosing, a kind of is that the boracic mine tailing is gone into storehouse as the boron concentrate powder, and another kind is that iron content is roughly selected breeze and entered the choosing of II level ore deposit;
5. II level ore deposit choosing:
Equipment: GXT-18 magnetic separator (patent ZL2004200553980) magnetic drum effective magnetic field area is 270 degree discs
Magnetic field intensity: 800～1000GS (magnetic separator magnetic field intensity scope)
Magnetic drum rotating speed: 160～200 rev/mins (frequency control)
Draw two kinds of products after the II level ore deposit choosing, a kind of is that the boracic mine tailing is gone into storehouse as the boron concentrate powder, and another kind is that iron content is roughly selected breeze and entered the choosing of III level ore deposit;
6. III level ore deposit choosing:
Equipment: GXT-18 magnetic separator (patent ZL2004200553980) magnetic drum effective magnetic field area is 270 degree discs
Magnetic field intensity: 400～800GS (magnetic separator magnetic field intensity scope)
Magnetic drum rotating speed: 200～350 rev/mins (frequency control)
Draw two kinds of products after the choosing of III level ore deposit, a kind of is that the boracic mine tailing is gone into storehouse as the boron concentrate powder, and another kind is to contain Iron Ore Powder to enter iron powder slip make-up tank;
7. iron powder slip preparation:
Equipment: QJB-1500 tank diameter slurry formula is forced agitator (development of Dashiqiao City Practical science technical research institute)
The mass ratio of iron powder and water: 1: 1～1.5
Mixer mixing speed: 50～150 rev/mins (frequency control)
The iron powder slip that stirs enters the wet feed magnetic separator;
8. wet feed magnetic separation:
Equipment: CTB-7518 permanent magnetism wet method drum magnetic separator (Shenyang Mine Machine Factory's manufacturing)
Magnetic field intensity: 1450～1750GS (magnetic separator magnetic field intensity scope)
Magnetic drum rotating speed: 30～60 rev/mins (frequency control)
Fine iron breeze after the wet feed magnetic separation enters dewaterer;
9. fine iron breeze processed:
Equipment: GYW-5 outside filtering type vacuum and permanent magnet filter (Shenyang Mine Machine Factory's manufacturing)
Moisture content is controlled at 6～10%, and gained dehydration back product is the finished iron fine ore, and the water of deviating from is sent into wet separator and recycled.
Finished product boron concentrate powder (mine tailing) and fine iron breeze quality index:
Boron concentrate powder: B
2O
311.58%; Fe 8.74%; MgO 35.43%; S0.18%; SiO
214.12%;
Fine iron breeze quality index: TFe 63.85%; B
2O
33.02%; S 0.08%; SiO
24.65%; MgO 5.05%.
Corresponding device device ruuning situation: in the dry magnetic separation process, every magnetic separator all is connected with main deduster, captures the dust that produces in the production process, the process of choosing, adopts the belt conveyer convey materials from ore to III level ore deposit; Material is carried by the slag stock pump in the wet magnetic separation process; The norm quota of consumption and quality index contrast:
1), contains magnetic ludwigite production fine iron breeze and boron concentrate powder combined mineral dressing technology method and can obtain two kinds of products: boron concentrate powder (mine tailing) and fine iron breeze; In fine iron breeze per ton: it is boron concentrate powder 2.3t (removing the processing consume) that consumption ore 3.5t, electric 75KW, water 0.6t can obtain mine tailing simultaneously.
2), this process and conventional wet method contrast:
It is fine iron breeze that conventional wet method can only obtain a kind of product;
Quality index: fine iron breeze: TFe 52.34%; SiO
25.08%; B
2O
35.75%; S 0.12%; MgO 15.33%; Mine tailing quality index: TFe 18.36%; B
2O
34.21%; The norm quota of consumption is in the smart powder of iron per ton: 4.25 tons in consumption ore, power consumption 95KW, 8.75 tons of water consumptions.
Embodiment two:
Ore source: five O of Yingkou City, Liaoning Province, one boron rock
Main component: TFe 25.37%; B
2O
39.85%; SiO
212.34%; MgO22.68%; Contain TFe magnetic susceptibility 62.5%.
Process:
1. coarse crushing, 2. in small, broken bits and 3. abrasive dust with embodiment one 1., 2. and 3.;
4. I level ore deposit choosing:
Equipment: with among the embodiment one 4. in equipment
Magnetic field intensity: 1000～1450GS (magnetic separator magnetic field intensity scope)
Magnetic field hunting frequency: 80～160 times/minute (adjustable)
Magnetic drum rotating speed: 20～160 rev/mins (frequency control);
5. II level ore deposit choosing:
Equipment: with among the embodiment one 5. in equipment
Magnetic field intensity: 800～1000GS (magnetic separator magnetic field intensity scope)
Magnetic field hunting frequency: 80～160 times/minute (adjustable)
Magnetic drum rotating speed: 180～220 rev/mins (frequency control);
6. III level ore deposit choosing:
Equipment: with among the embodiment one 6. in equipment
Magnetic field intensity: 400～800GS (magnetic separator magnetic field intensity scope)
Magnetic field hunting frequency: 80～160 times/minute (adjustable)
Magnetic drum rotating speed: 220～380 rev/mins (frequency control);
7. iron powder slip preparation: with among the embodiment one 7.;
8. wet feed magnetic separation: with among the embodiment one 8.;
9. fine iron breeze processed: obtain two kinds of products:
Technical target of the product: fine iron breeze: TFe 64.58%; B
2O
32.45%; SiO
23.04%; MgO 4.47%; Boron concentrate powder: B
2O
313.85%; TFe 6.55%; SiO
213.07%; MgO 28.98%.
Embodiment three:
Ore source: Fengcheng City county, Dandong City, Liaoning Province Jiguanshan Mountain paigeite
Technical indicator: ore particle diameter: 50～400mm
Main Ingredients and Appearance: TFe 35.65%; B9.42%; SiO
28.5%; MgO 12.31%; Contain TFe magnetic susceptibility 68.45%.
Process:
1. coarse crushing, 2. in small, broken bits and 3. abrasive dust with embodiment one 1., 2. and 3.;
4. I level ore deposit choosing:
Equipment: with among the embodiment one 4. in equipment
Magnetic field intensity: 1000～1450GS (magnetic separator magnetic field intensity scope)
Magnetic field hunting frequency: 80～160 times/minute (adjustable)
Magnetic drum rotating speed: 100～200 rev/mins (frequency control);
5. II level ore deposit choosing:
Equipment: with among the embodiment one 5. in equipment
Magnetic field intensity: 800～1000GS (magnetic separator magnetic field intensity scope)
Magnetic field hunting frequency: 80～160 times/minute (adjustable)
Magnetic drum rotating speed: 200～240 rev/mins (frequency control);
6. III level ore deposit choosing:
Equipment: with among the embodiment one 6. in equipment
Magnetic field intensity: 400～800GS (magnetic separator magnetic field intensity scope)
Magnetic field hunting frequency: 80～160 times/minute (adjustable)
Magnetic drum rotating speed: 240～400 rev/mins (frequency control);
7. iron powder slip preparation: with among the embodiment one 7.;
8. wet feed magnetic separation: with among the embodiment one 8.;
9. fine iron breeze processed: obtain two kinds of products: two kinds of technical target of the product: fine iron breeze: TFe 62.85%; B
2O
33.08%; SiO
23.54%; MgO 3.55%; Boron concentrate powder: B
2O
312.35%; TFe 8.58%; SiO
29.82%; MgO 14.05%.
Claims (1)
1. contain the magnetic ludwigite and produce fine iron breeze and boron concentrate powder combined mineral dressing technology method, it is characterized in that: its technological process is: 1. ore particle diameter＞40mm, and through coarse crushing, particle diameter is 10～40mm after the coarse crushing; 2. in small, broken bits: the ore after the coarse crushing enters fine crusher and pulverizes, and particle diameter is crushed to 1～10mm; 3. abrasive dust: the ore after in small, broken bits enters flour mill and makes 120～300 order breezes; 4. I level ore deposit choosing: 120～300 order breezes that flour mill is made enter I level magnetic separator, and the magnetic separator magnetic field intensity is 1000～1450GS, and the magnetic drum rotating speed is 20～160 rev/mins; 5. II level ore deposit choosing: the iron powder after the choosing of I level ore deposit enters II level magnetic separator, and the magnetic separator magnetic field intensity is 800～1000GS, and the magnetic drum rotating speed is 160～200 rev/mins; 6. III level ore deposit choosing: the iron powder after the choosing of II level ore deposit enters III level magnetic separator, and the magnetic separator magnetic field intensity is 400～800GS, and the magnetic drum rotating speed is 200～350 rev/mins; 7. stir: the iron powder after the choosing of III level ore deposit enters iron powder slip make-up tank and stirs, and mixes, and iron powder is 1: 1～1.5 with the water quality ratio, and mixing speed is 30～100 rev/mins; 8. wet feed magnetic separation: the iron powder slip through mixing enters magnetic separator, and the magnetic separator magnetic field intensity is 1450～1750GS, and the magnetic drum rotating speed is 30～60 rev/mins; 9. the fine iron breeze slip enters the vacuum magnet filter and dewaters after magnetic separation: dehydration makes fine iron breeze to moisture 6～10%; 10. the water of deviating from through the vacuum magnet filter enters the wet feed magnetic separator and recycles, and the mine tailing of above gained is the boron concentrate powder.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810228910A CN101733195A (en) | 2008-11-20 | 2008-11-20 | Combined ore dressing process for iron ore concentrate powder and boron ore concentrate powder produced by magnetic ludwigite |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810228910A CN101733195A (en) | 2008-11-20 | 2008-11-20 | Combined ore dressing process for iron ore concentrate powder and boron ore concentrate powder produced by magnetic ludwigite |
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|---|---|---|---|
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102637519A (en) * | 2012-05-14 | 2012-08-15 | 刘纪柱 | Method utilizing paigeite powder to manufacture magnet |
| CN105967200A (en) * | 2016-06-21 | 2016-09-28 | 辽宁首钢硼铁有限责任公司 | Production technology for mineralized co-production of coarse-grained ludwigite |
| CN106733136A (en) * | 2016-11-17 | 2017-05-31 | 北京科技大学 | Method for separating and concentrating containing boron mineral in a kind of Boron Slag |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1623668A (en) * | 2004-12-14 | 2005-06-08 | 李兴斌 | Combined mineral separation technology process for producing iron refine ore powder containing magnetic iron ore |
| CN1623669A (en) * | 2004-12-14 | 2005-06-08 | 李兴斌 | Dry mineral separation technology process for producing iron refine ore from iron ore containing magnetic |
| CN101219413A (en) * | 2008-01-22 | 2008-07-16 | 福州昌晖自动化***有限公司 | Technique for manufacturing hyperpure iron extract |
-
2008
- 2008-11-20 CN CN200810228910A patent/CN101733195A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1623668A (en) * | 2004-12-14 | 2005-06-08 | 李兴斌 | Combined mineral separation technology process for producing iron refine ore powder containing magnetic iron ore |
| CN1623669A (en) * | 2004-12-14 | 2005-06-08 | 李兴斌 | Dry mineral separation technology process for producing iron refine ore from iron ore containing magnetic |
| CN101219413A (en) * | 2008-01-22 | 2008-07-16 | 福州昌晖自动化***有限公司 | Technique for manufacturing hyperpure iron extract |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102637519A (en) * | 2012-05-14 | 2012-08-15 | 刘纪柱 | Method utilizing paigeite powder to manufacture magnet |
| CN102637519B (en) * | 2012-05-14 | 2013-12-18 | 本溪钢铁(集团)建设有限责任公司 | Method utilizing paigeite powder to manufacture magnet |
| CN105967200A (en) * | 2016-06-21 | 2016-09-28 | 辽宁首钢硼铁有限责任公司 | Production technology for mineralized co-production of coarse-grained ludwigite |
| CN105967200B (en) * | 2016-06-21 | 2018-08-24 | 辽宁首钢硼铁有限责任公司 | A kind of production technology of coarse fraction ludwigite mineralising coproduction |
| CN106733136A (en) * | 2016-11-17 | 2017-05-31 | 北京科技大学 | Method for separating and concentrating containing boron mineral in a kind of Boron Slag |
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Application publication date: 20100616 |