CN110947514B - Iron removing method for non-metallic ore system - Google Patents
Iron removing method for non-metallic ore system Download PDFInfo
- Publication number
- CN110947514B CN110947514B CN201911342556.8A CN201911342556A CN110947514B CN 110947514 B CN110947514 B CN 110947514B CN 201911342556 A CN201911342556 A CN 201911342556A CN 110947514 B CN110947514 B CN 110947514B
- Authority
- CN
- China
- Prior art keywords
- iron
- magnetic
- iron removal
- removal process
- magnetic field
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/005—Pretreatment specially adapted for magnetic separation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/025—High gradient magnetic separators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/10—Magnetic separation acting directly on the substance being separated with cylindrical material carriers
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention belongs to the technical field of processing and purifying of non-metallic ores, solves the technical problem of removing iron from the non-metallic ores, and provides a method for removing iron from the non-metallic ores by a system, which comprises the following steps: the method comprises the steps of raw material mining and transportation, dry method iron removal process, crushing, dry method low magnetic field iron removal process, ore grinding, wet method medium magnetic field iron removal process, wet method high magnetic field refining iron removal process and finished product packaging iron removal process. The invention adopts a physical method system of magnetic force deironing and economically removes metallic iron devices and mineral iron or titanium coloring impurities in various non-metallic ores, thereby effectively improving and ensuring the product purity.
Description
Technical Field
The invention belongs to the technical field of processing and purifying of non-metallic ores, relates to a method for removing various magnetic impurities in a non-metallic ore processing process by means of magnetic force, and particularly relates to a non-metallic ore system iron removal method for removing magnetic impurities in feldspar non-metallic ores by using a magnetic separation technology.
Background
In the field of processing and purifying non-metallic ores, in order to improve the purity and whiteness of various finished products, iron removal is generally performed by means of chemical leaching and bleaching, such as: suyishui (CN1018996B) invented a process for removing iron from kaolin by a complexation method and bleaching; linyuman (CN107603913A) invented a mixed flora for removing iron and whitening kaolin; yangbojun et al (CN107603913A) invented the method of using sulfuric acid as acid-leaching agent to make acid-leaching-reduction deironing of kaolin raw material; linyuman (CN107619052A) invented a method for removing iron and whitening by using chemical-bacteria combination. The method of removing iron by magnetic separation is also adopted in a manner of combining gravity separation with centrifugal force, such as: zhenghao (CN105413860A) invents a method for directly blowing pulverized kaolin into a container with an electromagnet, absorbing iron-containing components on the wall of the container, and blowing out the absorbed kaolin by compressed air to obtain an iron-removed kaolin product; nippon et al (CN107774437A) invented the removal of iron and titanium by treating kaolin with a pharmaceutical agent, followed by a combination of magnetic separation and centrifugal separation. The above methods are all implemented from the stage of raw material refining process, so as to finally achieve the purposes of iron removal, whitening and purification. The chemical refining method has the main defects of extremely low iron removal efficiency, long reaction time and environmental pollution, and the dry magnetic separation iron removal method is only limited to coarse-particle elemental metal iron and has low treatment capacity.
In fact, in the process of developing and utilizing non-metallic mineral resources, besides the raw materials are iron, titanium and manganese minerals with different specific magnetic coefficients due to geological causes, iron pollution is brought in each subsequent processing step, so that the efficiency and effect of the method are usually greatly reduced by only removing iron in one section or even the last process adopted in the prior art.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a feldspar non-metal ore system iron removal method, which comprises the following steps: the method comprises the steps of raw material mining and transportation, dry method iron removal, crushing, dry method low magnetic field iron removal, ore grinding, wet method medium magnetic field iron removal, wet method high magnetic field refining iron removal and finished product packaging iron removal.
Furthermore, in the working procedure of mining transportation-dry method iron removal, a gradient-opening suspension type iron remover and/or a magnetic pulley with separation magnetic induction intensity within 150mT is adopted in the process of raw ore mining and transportation to carry out dry method removal on large iron abrasion parts or detonating cords and the like.
Further, in the working procedure of crushing-dry low-magnetic-field iron removal, after coarse crushing and/or fine crushing of mined raw ore, a gradient barrel-type or roller-type low-magnetic-field magnetic separator with separation magnetic induction intensity of 150-200 mT is adopted to carry out dry removal on magnetic iron substances with coarse particles and high specific magnetization coefficient.
Furthermore, in the magnetic field iron removal process in the grinding-wet method, after the finely ground materials are ground, a closed gradient reciprocating permanent magnet multi-gradient magnetic separator with a separation background magnetic field of 300-600 mT or a vertical ring type multi-gradient magnetic separator with a separation background magnetic field of 600-1000 mT is adopted to carry out wet method removal on fine-particle metallic iron with medium specific susceptibility.
Further, in the wet-method high-intensity magnetic field refining and deironing process, the materials treated by the grinding-wet-method medium-field deironing process are subjected to wet-method removal of micron-sized iron and titanium magnetic minerals by adopting a closed-gradient normally-conducting magnet or a low-temperature superconducting magnet pot-type high-intensity magnetic high-gradient magnetic separator with a separation background magnetic field of 1200-3000 mT.
Further, the finished product packaging iron removal process comprises a product dehydration filtration process, a product drying process and a product packaging iron removal process of a final product obtained through the wet strong magnetic field refining iron removal process, and a drawer type or permanent magnet high-gradient iron removal device of 600-800 mT is adopted in the product packaging iron removal process for removing.
Compared with the prior art, the invention has the advantages of high iron removal efficiency, good effect, low cost and high product quality and yield, can be well applied to large-scale industrial realization, and can purposefully remove iron, titanium and manganese coloring substances with different specific magnetization coefficients in the feldspar non-metal ores and iron pollution brought by each processing step in the development and utilization process of the feldspar non-metal ore resources by adopting different types of magnetic separation equipment, so that the product quality and the yield are greatly improved.
Drawings
FIG. 1 is a flow chart of the method for removing iron from a feldspar non-metallic ore system according to the invention;
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element. In case of conflict, the embodiments of the present invention and various features of the embodiments may be combined with each other within the scope of the present invention.
According to the invention concept, the technical scheme adopted by the invention is summarized as follows:
1. in the stage of conveying and warehousing the selected raw materials, magnetic pulleys and/or a suspension type iron remover are adopted to primarily remove the magnetic iron materials with high specific magnetic coefficients, such as iron screws, detonators and the like, which are carried in the mining process;
2. in the ore crushing stage of the selected raw materials, a gradient low-magnetic-field drum type or roller type magnetic separator is adopted to continuously remove ferromagnetic substances with coarse particles and high specific magnetic ring number in a dry method or wet method mode;
3. in the ore grinding stage of the selected raw materials, a closed-gradient medium-magnetic-field multilayer induction reciprocating box type or vertical ring magnetic separator is adopted to remove medium-specific-magnetization-coefficient medium-particle or fine-particle ferromagnetics or intergrowths thereof in a wet-process production mode;
4. in the refining stage of the selected raw materials, a closed-gradient multilayer induction high-gradient pot-type electromagnetic (or superconducting electromagnet) strong magnetic separator is adopted for separation so as to remove micron-sized magnetic substances such as iron, titanium and the like with low specific susceptibility;
5. in the final product packaging stage, a drawer type or permanent magnet high gradient iron removal device is adopted for carrying out accidental entrainment of iron objects.
The following detailed description will be given with reference to fig. 1, wherein the specific embodiment of the present invention is only for further illustration of the inventive concept of the present invention and is not intended to limit or contradict the present invention. In the embodiment of the method for removing iron from the feldspar non-metallic ore system, the step 1 of mining, transporting and dry-method iron removal of raw materials is firstly carried out, the raw materials are the raw feldspar non-metallic ore with ferromagnetic minerals, and in addition, the raw feldspar non-metallic ore also contains magnetic minerals such as titanium, manganese and the like. In step 1 and step 2 (described in further detail below), a low magnetic field is used as the iron removing magnetic field, and the sorting magnetic induction is set to 200mT or less, wherein, in the working procedure 1, an open gradient suspension type electromagnetic or permanent magnetic iron remover or a magnetic pulley with magnetic induction intensity set within 150mT is adopted and dry iron removal is implemented, the open gradient suspension type electromagnetic or permanent magnetic iron remover and the magnetic pulley can be independently or simultaneously adopted by one or two and correspondingly adopted by one or more, the permanent magnetic iron remover can be a grid-separated type pipeline iron remover or a rotary cage type pipeline iron remover, the magnetic pulley is a special name of a bulk ore dry magnetic separator or a full magnetic system magnetic roller, the magnetic roller can be suitable for preselection work in a crushing flow before self-grinding or ball-milling, the requirement of the principle of 'more crushing and less grinding' is met, and in addition, the magnetic induction intensity is preferably more than 100 mT. Therefore, the iron remover or the magnetic pulley can remove large metal iron pieces such as mechanical iron, large iron abrasion pieces or detonating cords mixed in the raw materials in the mining process by a dry method, and the large metal iron pieces with stronger magnetism such as the mechanical iron mixed in the crushing process of the feldspar non-metal minerals are removed by weak magnetic separation equipment firstly, so that the adverse conditions that the strong separation channel is easily blocked by the strong magnetic materials and the separation index is influenced because the strong magnetic separation equipment is directly used for removing iron when the content of the strong magnetic materials is more are avoided.
Then a crushing-dry method low-magnetic field iron removal process 2 is carried out, the selected non-metal raw ore which is processed by the process 1 is crushed, according to the description of the low magnetic field, for the mined and coarsely and/or finely crushed nonmetallic raw ore, the working procedure 2 adopts an open gradient cylinder type and/or roller type low-magnetic field permanent magnetic separator, the magnetic induction intensity is set within the range of 150-200 mT, the open gradient cylinder type low-magnetic field permanent magnetic separator and the open gradient roller type low-magnetic field permanent magnetic separator can adopt one or two types independently or simultaneously and can correspondingly adopt one or more than one, when the coarse particles after coarse crushing and/or fine crushing are subjected to dry separation, the magnetism and the particle size distribution of the materials influence the separation index, under the condition, the selected materials are classified as early as possible to reduce the particle size difference, and the particle size of coarse particles can be set to be less than 1 mm. In addition, compared with a roller type low-magnetic-field permanent magnetic separator, the roller type low-magnetic-field permanent magnetic separator does not need a thin belt to convey materials, the materials are directly fed to the surface of the separation barrel through the vibrating feeder, the problem that the ultrathin belt of the roller type low-magnetic-field permanent magnetic separator is easy to wear can be solved, and in this way, dry removal of iron substances with coarse particles and high specific magnetization coefficients in raw materials is realized through the working procedure 2.
And a grinding-wet process intermediate magnetic field iron removal process 3, wherein in the process 3, an intermediate magnetic field is adopted as an iron removal magnetic field, and a separation background magnetic field is set to be within the range of 300-1000 mT, specifically, for the fine-particle metallic iron with a medium specific magnetization coefficient in the feldspar non-metallic ore treated in the process 2, a closed-gradient reciprocating permanent-magnet multi-gradient magnetic separator with a separation background magnetic field of 300-600 mT and/or a vertical-ring multi-gradient magnetic separator with a separation background magnetic field of 600-1000 mT is adopted in the process 3, and the fine particles are removed by a wet method, and the particle size can be set to be less than 0.9 mm. The closed gradient reciprocating type permanent magnet multi-gradient magnetic separator and the vertical ring type multi-gradient magnetic separator can adopt one or two types at the same time and can correspondingly adopt one or more than one, the two types of multi-gradient magnetic separators preferably adopt neodymium iron boron and ferrite permanent magnet materials, in addition, in order to solve the problem of magnetic substance blockage frequently occurring in work, the problems of generating overlarge axial magnetic field gradient and serious magnetic flux leakage on two sides can be further solved by designing the optimal arrangement mode of a magnetic system and improving a composite magnetic system, for example, an auxiliary magnetic pole made of cobalt magnetic steel permanent magnet materials is added in the middle of a main magnetic pole to reduce the magnetic flux leakage. In this case, the intermediate specific susceptibility magnetic iron material can be removed by the wet cleaning in step 3.
Then carrying out a wet strong magnetic field refining deironing process 4, wherein in the process 4, a deironing magnetic field adopts a strong magnetic field, and a sorting background magnetic field is set to be in a range of 1200-3000 mT, specifically, the process adopts a closed gradient normally-conducting electromagnet or a low-temperature superconducting magnet pot type strong magnetic high-gradient magnetic separator with a sorting background magnetic field of 1200-3000 mT for the feldspar non-metal ores treated by the process 3 and implements wet deironing, and it can be understood that the magnetic system structure of the two strong magnetic high-gradient magnetic separators is characterized in that steel wool (fibrous) magnetic media are combined with an iron-wrapping device in a spiral pipe uniform magnetic field, so that a high-gradient non-uniform magnetic field is generated, therefore, the low-magnetic fine particles which are difficult to sort by a common magnetic separator can be effectively separated, the lower limit of sorting particle size is greatly reduced, and the process is particularly suitable for wet cleaning of iron, titanium and other low-magnetic substances with micron-grade magnetization low specific coefficient, in addition, for the weak magnetic substances such as iron, titanium and the like with micron-sized low specific susceptibility, the mutual adsorption effect among particles is enhanced, the magnetic substance and the non-magnetic substance are seriously mixed, the defect that the magnetic substance is difficult to be completely removed due to dry separation is avoided by adopting a wet method in the working procedure 4, in addition, auxiliary modes such as rinsing, pulsation and the like can be added, the impurities between the magnetic substance and the non-magnetic substance are damaged, and the probability that the weak magnetic substance is captured by a magnetic field is effectively improved. In addition, for the low-temperature superconducting magnet magnetic separator, the super-high magnetic field is generated by superconducting materials through strong current, and the low-temperature superconducting magnet magnetic separator has the characteristics of almost no heat loss and low energy consumption after reaching a superconducting state, and can be beneficial to reducing the energy consumption of the working procedure 4.
And finally, performing a finished product packaging iron removal process, which comprises the steps of performing product dehydration filtration 5, product drying 6 and product packaging iron removal 7 on the product obtained in the wet strong magnetic field refining iron removal process 4, wherein in the product packaging iron removal process 7, a drawer type or permanent magnet high gradient iron removal device of 600 mT-800 mT is adopted to remove weak magnetic impurities such as iron substances, and the like.
A detailed description of known methods is omitted herein for the sake of brevity. In the above embodiments, several specific steps are described and shown as examples. However, the method processes of the present invention are not limited to the specific steps described and illustrated, and those skilled in the art can make various changes, modifications and additions, or change the order between the steps, or perform several steps simultaneously, after comprehending the spirit of the present invention.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (1)
1. A method for removing iron from feldspar non-metallic ore system is characterized by comprising the following steps:
the method comprises the following steps of raw material mining and transportation, a dry method iron removal process, a crushing-dry method low magnetic field iron removal process, an ore grinding-wet method medium magnetic field iron removal process, a wet method strong magnetic field refining iron removal process and a finished product packaging iron removal process;
in the working procedure of mining transportation-dry method iron removal, a gradient-opening suspension type electromagnetic or permanent magnet iron remover and/or a magnetic pulley with separation magnetic induction intensity within 150mT is adopted in the process of raw ore mining and transportation to carry out dry method removal on large iron abrasion parts or detonating cords;
in the crushing-dry method low-magnetic-field iron removal process, after coarse crushing and/or fine crushing of mined raw ore, a gradient barrel type and/or roller type low-magnetic-field magnetic separator with separation magnetic induction intensity of 150-200 mT is adopted to carry out dry method removal on magnetic iron substances with coarse particles and high specific magnetization coefficient, and the particle size of the coarse particles is set to be less than 1 mm;
in the magnetic field iron removal procedure in the grinding-wet method, after the finely ground materials are ground, a closed gradient reciprocating permanent magnet multi-gradient magnetic separator with a separation background magnetic field of 300-600 mT and/or a vertical ring type multi-gradient magnetic separator with a separation background magnetic field of 600-1000 mT are/is adopted to carry out wet cleaning on fine-grained metallic iron with medium specific susceptibility, and the granularity of the fine grains is set to be less than 0.9 mm;
in the wet-method high-intensity magnetic field refining iron removal process, the materials treated by the grinding-wet-method medium-field iron removal process are subjected to wet-method removal of micron-sized iron and titanium magnetic minerals by adopting a closed-gradient normally-conducting magnet or a low-temperature superconducting magnet pot-type high-intensity magnetic high-gradient magnetic separator with a separation background magnetic field of 1200-3000 mT; the finished product packaging iron removal process comprises a product dehydration filtration process, a product drying process and a product packaging iron removal process of the product obtained by the wet strong magnetic field refining iron removal process, wherein a drawer type or permanent magnet high-gradient iron removal device of 600-800 mT is adopted in the product packaging iron removal process for removing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911342556.8A CN110947514B (en) | 2019-12-23 | 2019-12-23 | Iron removing method for non-metallic ore system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911342556.8A CN110947514B (en) | 2019-12-23 | 2019-12-23 | Iron removing method for non-metallic ore system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110947514A CN110947514A (en) | 2020-04-03 |
| CN110947514B true CN110947514B (en) | 2022-01-18 |
Family
ID=69983680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911342556.8A Active CN110947514B (en) | 2019-12-23 | 2019-12-23 | Iron removing method for non-metallic ore system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110947514B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111646441A (en) * | 2020-06-09 | 2020-09-11 | 山东科技大学 | Processing method for refining non-metallic minerals |
| CN114041529A (en) * | 2021-11-29 | 2022-02-15 | 青海蓝湖善成生物技术有限公司 | Preparation method of picromerite and picromerite feed |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201030327Y (en) * | 2007-05-14 | 2008-03-05 | 扬中市联合电磁电器有限公司 | Transportation electromagnetic self-unloading iron removing system |
| CN201676746U (en) * | 2010-04-08 | 2010-12-22 | 昆明理工大学 | Medium-crushing feeding automatic iron remover for strongly magnetic minerals |
| CN105665133A (en) * | 2016-01-24 | 2016-06-15 | 江西理工大学 | Comprehensive recycling method of stone tailing resources |
| CN106378254A (en) * | 2016-12-09 | 2017-02-08 | 江西金辉再生资源股份有限公司 | Method for removing magnetic impurities from tantalum-niobium waste ores by utilizing combined magnetic separation |
| CN106423554A (en) * | 2016-12-09 | 2017-02-22 | 江西金辉再生资源股份有限公司 | Method using tailing sand united concentration to prepare potassium-sodium feldspar powder |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100398215C (en) * | 2004-12-14 | 2008-07-02 | 李兴斌 | Dry mineral separation technology process for producing iron refine ore from iron ore containing magnetic |
| CN102442674A (en) * | 2011-08-29 | 2012-05-09 | 江西理工大学 | Technical method for producing high-quality feldspar from tantalum-niobium ore tailings |
| WO2015106871A1 (en) * | 2014-01-14 | 2015-07-23 | Imerys Ceramics France | Beneficiating process |
-
2019
- 2019-12-23 CN CN201911342556.8A patent/CN110947514B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201030327Y (en) * | 2007-05-14 | 2008-03-05 | 扬中市联合电磁电器有限公司 | Transportation electromagnetic self-unloading iron removing system |
| CN201676746U (en) * | 2010-04-08 | 2010-12-22 | 昆明理工大学 | Medium-crushing feeding automatic iron remover for strongly magnetic minerals |
| CN105665133A (en) * | 2016-01-24 | 2016-06-15 | 江西理工大学 | Comprehensive recycling method of stone tailing resources |
| CN106378254A (en) * | 2016-12-09 | 2017-02-08 | 江西金辉再生资源股份有限公司 | Method for removing magnetic impurities from tantalum-niobium waste ores by utilizing combined magnetic separation |
| CN106423554A (en) * | 2016-12-09 | 2017-02-22 | 江西金辉再生资源股份有限公司 | Method using tailing sand united concentration to prepare potassium-sodium feldspar powder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110947514A (en) | 2020-04-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102527504B (en) | Magnetic ore dressing method | |
| CN110947514B (en) | Iron removing method for non-metallic ore system | |
| CN109894259B (en) | Comprehensive utilization method of gold tailings containing gold, iron and feldspar | |
| NO20141146A1 (en) | Process and system for the dry extraction of fine and superfine iron ore particles and a magnetic separation unit | |
| CN109530083B (en) | Fine continuous dry magnetic separation device and use method | |
| CN111285405A (en) | Method for separating calcium ferrite and magnesium ferrite from steel slag magnetic separation tailings | |
| CN100430145C (en) | Method for magnetic separating of aluminum and iron in high iron bauxite | |
| Dobbins et al. | Recent advances in magnetic separator designs and applications | |
| CN104815752B (en) | A kind of steam power plant gives up magnetisable material separation method in lime-ash | |
| CN103433138A (en) | Breaking and separation integrated comprehensive recovery system of chrysotile tailings | |
| CN204769102U (en) | Magnesite is permanent magnetism high gradient magnetic separator for deironing | |
| CN115445758A (en) | Titanium ore screening and sorting system in zircalite | |
| CN205084860U (en) | Multistage magnetic separation device | |
| CN208032806U (en) | A kind of period alternative expression superconduction magnetic separator | |
| Silva et al. | Magnetic scavenging of ultrafine hematite from itabirites | |
| CN102886303B (en) | Varying magnetic field dry-type magnetic extractor | |
| CN209438815U (en) | A kind of particulate continuous dry-type concentration equipment | |
| CN113953068A (en) | Method for removing impurities and improving quality of gibbsite type high-iron bauxite in original place | |
| CN209317903U (en) | The bored slag drum belt magnetic separator of heat | |
| CN109158206B (en) | Multi-stage grading and pre-magnetic self-strengthening magnetic separation method | |
| CN209438808U (en) | A kind of multicell combined type particulate dry-type magnetic extractor | |
| JP2011230074A (en) | Method of treating wet dust generated in blast furnace | |
| CN109513523B (en) | Multi-unit combined type fine particle dry magnetic separator and use method thereof | |
| CN114273075B (en) | Beneficiation method for extracting high-purity silicon micropowder from quartz tail mud | |
| CN112191362B (en) | Method and system for selecting ultra-high purity ferroferric oxide mineral powder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |