CN102814230A - Beneficiation method for separating and comprehensively recycling ferrotitanium in titaniferous iron ore concentrate - Google Patents
Beneficiation method for separating and comprehensively recycling ferrotitanium in titaniferous iron ore concentrate Download PDFInfo
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- CN102814230A CN102814230A CN2012103255287A CN201210325528A CN102814230A CN 102814230 A CN102814230 A CN 102814230A CN 2012103255287 A CN2012103255287 A CN 2012103255287A CN 201210325528 A CN201210325528 A CN 201210325528A CN 102814230 A CN102814230 A CN 102814230A
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Abstract
The invention provides a beneficiation method for separating and comprehensively recycling ferrotitanium in titaniferous iron ore concentrate. The method includes conducting wet grinding on crude ore into 60%-80% ore pulp smaller than 45mum and adopting the magnetic selection and reselection combined process flow to achieve titanium and iron separation and comprehensively recycle the titanium and the iron to respectively obtain high-grade iron ore concentrate and titanium ore concentrate. The beneficiation method has the advantages of being simple in process flow, easy to operate and small in environment pollution due to the fact that no drug is required. Return water can be circulated and used, technical index is good, and the beneficiation method integrally achieves the aims of saving energy, reducing emission and comprehensively utilizing resources.
Description
Technical field
The invention belongs to the mineral processing technology field, particularly a kind of to containing the beneficiation method that concentrated ilmenite carries out the ferrotianium separation and comprehensively reclaims.
Background technology
China's iron ore natural type is complicated, and magnetic iron ore, v-ti magnetite ore, bloodstone stone, siderite, limonite ore, spiegel ore and mixed ore are arranged.In the iron ore reserves, be maximum (accounting for 55.5%) with the magnetic iron ore, be the main ore type of exploiting at present; The v-ti magnetite ore also is the main ore type of exploiting at present.Though China's iron ore deposit is abundant, total resources is at the forefront in the world, and the endowment of resources condition is very poor; As: lean ore is many, and rich ore is few, and the association component is many; The selecting and smelting technology complicated condition; The comprehensive utilization difficulty is big or the like, and according to statistics, the iron ore reserves of China companion, the useful component of symbiosis account for 1/3 of national reserves.
At present, the flat elder brother's steel gold of the gold river subordinate's of Co., Ltd brave bridge selecting and purchasing factory, Ma'an Mountain selecting and purchasing factory, inferior safe select factory and Ya Tai two to select that six ore dressing plants such as factory are annual to produce about 700,000 t iron ore concentrates, this iron ore concentrate iron content 57%～62%, contain titanium dioxide 5%～7%.Owing to lack processed technology efficiently; The processing method of this iron ore concentrate is to process pelletizing to smelt iron, and has not only caused the waste of titanium resource, and iron ore concentrate is because content of titanium dioxide is higher; Cause difficulty to blast furnace operating easily, restricted sustained development of enterprises.Therefore, this type of contains the processing of concentrated ilmenite, remains still unsolved key technical problem up to now, realizes the ferrotianium separation and comprehensively reclaims for supply that ensures the China's titanium resource and the expanding economy of promotion Yunnan local significant.
Summary of the invention
To containing problems such as concentrated ilmenite content of titanium dioxide height, ferrotianium separation difficulty, for rationally utilizing such ore resource, the realization ferrotianium separates and comprehensively reclaims, and it is a kind of to containing the beneficiation method that the concentrated ilmenite ferrotianium separates and comprehensively reclaims that the present invention provides.
The present invention accomplishes through following technical proposal: a kind of to containing the beneficiation method that the concentrated ilmenite ferrotianium separates and comprehensively reclaims, it is characterized in that through the following step:
A, will contain concentrated ilmenite raw ore wet grinding to accounting for 60%～80% ore pulp less than the content of 45 μ m;
B, the ore pulp of above-mentioned mog is carried out weak magnetic separation obtain iron ore concentrate and titanium rough concentrate, the magnetic field intensity of said weak magnetic separation is 0.10T～0.25T;
C, the titanium rough concentrate is carried out strong magnetic separation obtain strong magnetic rough concentrate and strong magnetic tail ore deposit, the magnetic field intensity of said strong magnetic separation is 0.4T～1.2T;
D, strong magnetic rough concentrate is carried out the table concentration operation: one section table concentration operation obtains ilmenite concentrate, chats and mine tailing; Two sections table concentration operations directly sort chats; Obtain ilmenite concentrate and mine tailing, sort after perhaps chats being regrinded, obtain ilmenite concentrate and mine tailing;
E, the ilmenite concentrate of table concentration gained among the step D is merged, obtain final ilmenite concentrate product.
The magnetic field intensity of the weak magnetic separation in the said B step is 0.10T～0.25T, and the selection of concrete magnetic field intensity is looked the ore chemistry composition and the character that are processed and confirmed.
Weak magnetic separation in the said B step be 10%～35% to mineral amount concentration.
The magnetic field intensity of the strong magnetic separation in the said C step is 0.4T～1.2T, and the selection of concrete magnetic field intensity is looked the ore chemistry composition and the character that are processed and confirmed.
Strong magnetic separation in the said C step be 10%～35% to mineral amount concentration.
Separation by shaking table in the said D step be 10%～35% to mineral amount concentration.
The hop count of the separation by shaking table in the said D step is looked the ore chemistry composition and the character that are processed and is confirmed as the 1-5 section.
The iron grade that contains the concentrated ilmenite raw ore is 50%～65%, TiO
2Grade is 3%～25%.
Be quality percentage composition ratio among the present invention.
The present invention has advantage and good effect:
1, to containing the concentrated ilmenite ore, adopt magnetic separation-gravity treatment joint process, the realization ferrotianium separates and comprehensively reclaims; Obtain high-grade iron ore concentrate and ilmenite concentrate respectively; Technological process is simple, can realize that ferrotianium separates and comprehensively reclaims, and obtains high-grade iron ore concentrate and ilmenite concentrate respectively; Not only can reduce influence, also make the titanium resource in the iron ore concentrate obtain high efficiente callback subsequent smelting.
2, the present invention adopts magnetic separation-gravity treatment joint process, and without any need for medicament, environmental pollution is little, and treating capacity is big, and backwater can be recycled, and invests little, profitable.
3, magnetic separation-gravity treatment joint process of adopting of the present invention meets the policy of national cleaner production, recycling economy, has reached the purpose of energy-conservation, reduction of discharging, comprehensive utilization of resources.
Description of drawings
Fig. 1 is a process chart of the present invention.
The specific embodiment
Below in conjunction with embodiment the present invention is done and to further describe.
Embodiment 1
The handled concentrated ilmenite that contains is taken from the flat elder brother's steel gold of gold river Co., Ltd, composition: Fe 58.05%, TiO
26.83%, CaO 0.93%, and MgO 1.61%, SiO
24.09%.
Above-mentioned raw ore is passed through following process steps:
(1) iron ore concentrate wet grinding to the content less than 45 μ m is accounted for 70% ore pulp;
(2) ore pulp with above-mentioned mog carries out weak magnetic separation, and the magnetic field intensity of weak magnetic separation is 0.13T, obtains iron ore concentrate and titanium rough concentrate;
(3) above-mentioned titanium rough concentrate is carried out strong magnetic separation, the magnetic field intensity of strong magnetic separation is 1.0T, obtains strong magnetic rough concentrate and strong magnetic tail ore deposit;
(4) above-mentioned strong magnetic rough concentrate is given to the cutting bed and carries out the table concentration operation; Feed ore concentration is 20%; Shaking table is roughly selected and is obtained ilmenite concentrate, inferior concentrate and tailings, and inferior concentrate carries out separation by shaking table again and obtains ilmenite concentrate, chats and mine tailing, and chats carries out separation by shaking table again and obtains ilmenite concentrate and mine tailing.
(5) ilmenite concentrate with separation by shaking table gained in the step 4 merges, and obtains final ilmenite concentrate product.
Technical indicator: iron ore concentrate contains Fe 65.38%, contains TiO
23.84%, the rate of recovery 94.69%; Ilmenite concentrate contains TiO
246.56%, contain Fe 32.79%, the rate of recovery 26.32%.
Embodiment 2
The handled concentrated ilmenite raw ore that contains, composition: Fe 55.65%, TiO
29.45%, CaO 2.52%, and MgO 3.41%, SiO
23.28%.
Above-mentioned raw ore is passed through following process steps:
(1) iron ore concentrate wet grinding to the content less than 45 μ m is accounted for 75% ore pulp;
(2) ore pulp with above-mentioned mog carries out weak magnetic separation, and the magnetic field intensity of weak magnetic separation is 0.18T, obtains iron ore concentrate and titanium rough concentrate;
(3) above-mentioned titanium rough concentrate is carried out strong magnetic separation, the magnetic field intensity of strong magnetic separation is 0.8T, obtains strong magnetic rough concentrate and strong magnetic tail ore deposit;
(4) above-mentioned strong magnetic rough concentrate is given to the cutting bed and carries out the table concentration operation; Feed ore concentration is 20%; Shaking table is roughly selected and is obtained ilmenite concentrate, inferior concentrate and tailings, and inferior concentrate carries out separation by shaking table again and obtains ilmenite concentrate, chats and mine tailing, and chats carries out separation by shaking table again and obtains ilmenite concentrate and mine tailing.
(5) ilmenite concentrate with separation by shaking table gained in the step 4 merges, and obtains final ilmenite concentrate product.
Technical indicator: iron ore concentrate contains Fe 63.25%, contains TiO
25.85%, the rate of recovery 92.35%; Ilmenite concentrate contains TiO
247.04%, contain Fe 30.63%, the rate of recovery 28.65%.
Embodiment 3
The handled concentrated ilmenite raw ore that contains, composition: Fe 59.83%, TiO
211.68%, CaO 0.82%, and MgO 1.78%, SiO
22.81%.
Above-mentioned raw ore is passed through following process steps:
(1) iron ore concentrate wet grinding to the content less than 45 μ m is accounted for 60% ore pulp;
(2) ore pulp with above-mentioned mog carries out weak magnetic separation, and the magnetic field intensity of weak magnetic separation is 0.11T, obtains iron ore concentrate and titanium rough concentrate;
(3) above-mentioned titanium rough concentrate is carried out strong magnetic separation, the magnetic field intensity of strong magnetic separation is 1.2T, obtains strong magnetic rough concentrate and strong magnetic tail ore deposit;
(4) above-mentioned strong magnetic rough concentrate is given to the cutting bed and carries out the table concentration operation; Feed ore concentration is 20%; Shaking table is roughly selected and is obtained ilmenite concentrate, inferior concentrate and tailings; Inferior concentrate obtains ilmenite concentrate, chats and mine tailing through carrying out separation by shaking table after regrinding, and chats carries out separation by shaking table again and obtains ilmenite concentrate and mine tailing.
(5) ilmenite concentrate with separation by shaking table gained in the step 4 merges, and obtains final ilmenite concentrate product.
Technical indicator: iron ore concentrate contains Fe 66.75%, contains TiO
26.82%, the rate of recovery 93.55%; Ilmenite concentrate contains TiO
246.95%, contain Fe 34.73%, the rate of recovery 31.08%.
Claims (6)
1. one kind to containing the beneficiation method that the concentrated ilmenite ferrotianium separates and comprehensively reclaims, and it is characterized in that step is following:
A, will contain the concentrated ilmenite wet grinding to accounting for 60%～80% ore pulp less than the content of 45 μ m;
B, the ore pulp of above-mentioned mog is carried out weak magnetic separation obtain iron ore concentrate and titanium rough concentrate, the magnetic field intensity of said weak magnetic separation is 0.10T～0.25T;
C, the titanium rough concentrate is carried out strong magnetic separation obtain strong magnetic rough concentrate and strong magnetic tail ore deposit, the magnetic field intensity of said strong magnetic separation is 0.4T～1.2T;
D, strong magnetic rough concentrate is carried out the table concentration operation: one section table concentration operation obtains ilmenite concentrate, chats and mine tailing; Two sections table concentration operations directly sort chats; Obtain ilmenite concentrate and mine tailing, sort after perhaps chats being regrinded, obtain ilmenite concentrate and mine tailing;
E, the ilmenite concentrate of table concentration gained among the step D is merged, obtain final ilmenite concentrate product.
2. beneficiation method as claimed in claim 1, what it is characterized in that said B step ore pulp is 10%～35% to mineral amount concentration.
3. beneficiation method as claimed in claim 1, what it is characterized in that said C step ore pulp is 10%～35% to mineral amount concentration.
4. beneficiation method as claimed in claim 1, what it is characterized in that table concentration in the said D step is 10%～35% to mineral amount concentration.
5. beneficiation method as claimed in claim 1, the hop count that it is characterized in that table concentration in the said D step is looked the ore chemistry composition and the character that are processed and is confirmed as the 1-5 section.
6. beneficiation method as claimed in claim 1, the iron grade that it is characterized in that containing concentrated ilmenite is 50%～65%, TiO
2Grade is 3%～25%.
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103623916A (en) * | 2013-11-26 | 2014-03-12 | 中南大学 | Fine-grain-rutile tailing-discarding and desliming technology |
| CN103721842A (en) * | 2013-12-20 | 2014-04-16 | 攀钢集团矿业有限公司 | Re-recovery process of coarsely-graded low-grade ilmenite |
| CN104394993A (en) * | 2013-02-01 | 2015-03-04 | 河北联合大学 | method for pre-treating ilmenite tailings after iron-beneficiation |
| CN104607309A (en) * | 2015-02-12 | 2015-05-13 | 玉溪大红山矿业有限公司 | Mineral processing process for efficiently reclaiming low-grade mixed iron ores |
| CN106824510A (en) * | 2017-03-13 | 2017-06-13 | 河钢股份有限公司承德分公司 | The production method of fine grained low-sulfur ilmenite concentrate |
| CN107716093A (en) * | 2017-11-13 | 2018-02-23 | 中钢集团马鞍山矿山研究院有限公司 | A kind of method of low-grade titanium-containing magnet ore deposit cleaning comprehensive utilization |
| CN108325736A (en) * | 2018-01-12 | 2018-07-27 | 武汉科技大学 | A kind of Preconcentration of low-grade vanadium titano-magnetite |
| CN108405173A (en) * | 2018-03-09 | 2018-08-17 | 中钢集团马鞍山矿山研究院有限公司 | A kind of fine beneficiation new process of the red water chestnut compound iron ore of magnetic |
| CN109604050A (en) * | 2018-12-03 | 2019-04-12 | 攀枝花学院 | Environment-friendly type iron selection tailings titanium separation method |
| CN109954576A (en) * | 2019-03-29 | 2019-07-02 | 中冶北方（大连）工程技术有限公司 | Apatite ilmenite titanium selecting art |
| CN109954575A (en) * | 2019-03-29 | 2019-07-02 | 中冶北方（大连）工程技术有限公司 | Improve the ore-dressing technique of the titanomagnetite rate of recovery |
| CN109954581A (en) * | 2019-03-29 | 2019-07-02 | 中冶北方（大连）工程技术有限公司 | Titanomagnetite dresser's skill |
| CN111389583A (en) * | 2020-03-06 | 2020-07-10 | 长沙矿冶研究院有限责任公司 | Beneficiation method for enhancing separation efficiency of placer type ilmenite |
| CN113680521A (en) * | 2021-08-23 | 2021-11-23 | 武定新立钛业有限公司 | Titanium rough concentrate concentration method |
| CN115382649A (en) * | 2022-07-28 | 2022-11-25 | 秦皇岛优格玛工业技术有限公司 | Ilmenite separation method |
| CN117065917A (en) * | 2023-08-21 | 2023-11-17 | 昆明理工大学 | Novel process for reducing titanium of fine-particle iron concentrate extract |
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| CN104394993A (en) * | 2013-02-01 | 2015-03-04 | 河北联合大学 | method for pre-treating ilmenite tailings after iron-beneficiation |
| CN104394993B (en) * | 2013-02-01 | 2016-07-13 | 华北理工大学 | A kind of preprocess method of ilmenite iron selection tailings |
| CN103623916A (en) * | 2013-11-26 | 2014-03-12 | 中南大学 | Fine-grain-rutile tailing-discarding and desliming technology |
| CN103721842A (en) * | 2013-12-20 | 2014-04-16 | 攀钢集团矿业有限公司 | Re-recovery process of coarsely-graded low-grade ilmenite |
| CN103721842B (en) * | 2013-12-20 | 2016-03-02 | 攀钢集团矿业有限公司 | A kind of gravity treatment recovery process of coarse fraction low-grade ilmenite |
| CN104607309B (en) * | 2015-02-12 | 2017-07-07 | 玉溪大红山矿业有限公司 | A kind of ore-dressing technique of the low-grade mixed type iron ore of high efficiente callback |
| CN104607309A (en) * | 2015-02-12 | 2015-05-13 | 玉溪大红山矿业有限公司 | Mineral processing process for efficiently reclaiming low-grade mixed iron ores |
| CN106824510B (en) * | 2017-03-13 | 2019-05-17 | 河钢股份有限公司承德分公司 | The production method of fine grained low-sulfur ilmenite concentrate |
| CN106824510A (en) * | 2017-03-13 | 2017-06-13 | 河钢股份有限公司承德分公司 | The production method of fine grained low-sulfur ilmenite concentrate |
| CN107716093A (en) * | 2017-11-13 | 2018-02-23 | 中钢集团马鞍山矿山研究院有限公司 | A kind of method of low-grade titanium-containing magnet ore deposit cleaning comprehensive utilization |
| CN108325736A (en) * | 2018-01-12 | 2018-07-27 | 武汉科技大学 | A kind of Preconcentration of low-grade vanadium titano-magnetite |
| CN108405173B (en) * | 2018-03-09 | 2020-01-17 | 中钢集团马鞍山矿山研究院有限公司 | Novel fine beneficiation process for magnetic hematite and siderite mixed iron ore |
| CN108405173A (en) * | 2018-03-09 | 2018-08-17 | 中钢集团马鞍山矿山研究院有限公司 | A kind of fine beneficiation new process of the red water chestnut compound iron ore of magnetic |
| CN109604050A (en) * | 2018-12-03 | 2019-04-12 | 攀枝花学院 | Environment-friendly type iron selection tailings titanium separation method |
| CN109954576A (en) * | 2019-03-29 | 2019-07-02 | 中冶北方（大连）工程技术有限公司 | Apatite ilmenite titanium selecting art |
| CN109954575A (en) * | 2019-03-29 | 2019-07-02 | 中冶北方（大连）工程技术有限公司 | Improve the ore-dressing technique of the titanomagnetite rate of recovery |
| CN109954581A (en) * | 2019-03-29 | 2019-07-02 | 中冶北方（大连）工程技术有限公司 | Titanomagnetite dresser's skill |
| CN109954581B (en) * | 2019-03-29 | 2021-01-22 | 中冶北方（大连）工程技术有限公司 | Beneficiation process for titanomagnetite |
| CN111389583A (en) * | 2020-03-06 | 2020-07-10 | 长沙矿冶研究院有限责任公司 | Beneficiation method for enhancing separation efficiency of placer type ilmenite |
| CN113680521A (en) * | 2021-08-23 | 2021-11-23 | 武定新立钛业有限公司 | Titanium rough concentrate concentration method |
| CN113680521B (en) * | 2021-08-23 | 2023-11-03 | 武定国钛金属有限公司 | Titanium rough concentrate concentration method |
| CN115382649A (en) * | 2022-07-28 | 2022-11-25 | 秦皇岛优格玛工业技术有限公司 | Ilmenite separation method |
| CN117065917A (en) * | 2023-08-21 | 2023-11-17 | 昆明理工大学 | Novel process for reducing titanium of fine-particle iron concentrate extract |
| CN117065917B (en) * | 2023-08-21 | 2024-01-16 | 昆明理工大学 | Novel process for reducing titanium of fine-particle iron concentrate extract |
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Application publication date: 20121212 |