WO2015076761A1 - Magnesite ore enrichment process - Google Patents
Magnesite ore enrichment process Download PDFInfo
- Publication number
- WO2015076761A1 WO2015076761A1 PCT/TR2013/000354 TR2013000354W WO2015076761A1 WO 2015076761 A1 WO2015076761 A1 WO 2015076761A1 TR 2013000354 W TR2013000354 W TR 2013000354W WO 2015076761 A1 WO2015076761 A1 WO 2015076761A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ore
- magnesite
- enrichment process
- enrichment
- magnesite ore
- Prior art date
Links
- 229910000021 magnesium carbonate Inorganic materials 0.000 title claims abstract description 53
- 239000001095 magnesium carbonate Substances 0.000 title claims abstract description 49
- 235000014380 magnesium carbonate Nutrition 0.000 title claims abstract description 49
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 34
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229910052681 coesite Inorganic materials 0.000 claims abstract description 24
- 229910052906 cristobalite Inorganic materials 0.000 claims abstract description 24
- 229910052682 stishovite Inorganic materials 0.000 claims abstract description 24
- 229910052905 tridymite Inorganic materials 0.000 claims abstract description 24
- 239000012670 alkaline solution Substances 0.000 claims abstract description 10
- 150000001875 compounds Chemical class 0.000 claims abstract description 5
- 238000002156 mixing Methods 0.000 claims abstract description 5
- 238000001035 drying Methods 0.000 claims abstract description 3
- 238000005406 washing Methods 0.000 claims abstract description 3
- 239000000243 solution Substances 0.000 claims description 14
- 239000000126 substance Substances 0.000 claims description 11
- 230000003247 decreasing effect Effects 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims 1
- 239000012535 impurity Substances 0.000 abstract description 10
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 5
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 4
- 239000013078 crystal Substances 0.000 abstract description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 4
- 235000010755 mineral Nutrition 0.000 abstract description 4
- 239000011707 mineral Substances 0.000 abstract description 4
- 239000000377 silicon dioxide Substances 0.000 abstract description 4
- 239000001569 carbon dioxide Substances 0.000 abstract description 3
- 235000012239 silicon dioxide Nutrition 0.000 abstract description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052782 aluminium Inorganic materials 0.000 abstract description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 2
- 229940024548 aluminum oxide Drugs 0.000 abstract description 2
- 229910052791 calcium Inorganic materials 0.000 abstract description 2
- 239000011575 calcium Substances 0.000 abstract description 2
- 229940087373 calcium oxide Drugs 0.000 abstract description 2
- 229960005191 ferric oxide Drugs 0.000 abstract description 2
- 229910052742 iron Inorganic materials 0.000 abstract description 2
- 229960001866 silicon dioxide Drugs 0.000 abstract description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- KWYUFKZDYYNOTN-UHFFFAOYSA-M potassium hydroxide Inorganic materials [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 229910052911 sodium silicate Inorganic materials 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- KRKNYBCHXYNGOX-UHFFFAOYSA-K Citrate Chemical compound [O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O KRKNYBCHXYNGOX-UHFFFAOYSA-K 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000011822 basic refractory Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229940126534 drug product Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000006193 liquid solution Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 238000007885 magnetic separation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000000825 pharmaceutical preparation Substances 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- RYYKJJJTJZKILX-UHFFFAOYSA-M sodium octadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCCCC([O-])=O RYYKJJJTJZKILX-UHFFFAOYSA-M 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F5/00—Compounds of magnesium
- C01F5/24—Magnesium carbonates
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
Definitions
- the present invention relates to the enrichment of magnesite ore.
- Magnesite is a carbonate depicted as MgC0 3i theoretically comprising 47.8 % MgO and 52.2 % C02. It is a natural ore used as raw material in the production of heat resistant, basic refractory and oven materials needed mainly in industries requiring high heat like iron-steel industry, cement industry, lime industry and non-ferrous metal industry. This ore is also used in the chemical industry and pharmaceutical industry in the preparation of various reactives and drug products.
- the quality of the ore increases or decreases according to the amounts of impurities contained. In nature, it is very hard to find magnesite with the required characteristics that are suitable for areas of utilization. Any foreign element contained in magnesite with an extent of more or less than 0.1 % determines whether or not magnesite can be considered economically viable with the present technology.
- the natural magnesite ore contains the impurities such as Si0 2 , CaC0 3 , A1 2 0 3 and Fe 2 0 3 . The amount and ratio of impurities contained in the ore determine the quality and sale price of the ore.
- the magnesite technology starts with the production of the ore from the mineral deposit.
- the ore produced from the mineral deposit generally by surface mining methods and seldom by underground mining methods is in general subjected to an enrichment process.
- the enrichment process is realized by removing gangue materials from the ore.
- the enclosing rocks In order to perform the optical enrichment, a widely used enrichment process, the enclosing rocks should differ from the ore in terms of color. In order for the other enrichment process, which is magnetic enrichment, to be effective the ore and/or the enclosing rocks should have magnetic properties.
- the above-mentioned processes cannot be used in ores that do not have distinctive color, density and magnetic feature differences.
- the chemical enrichment method is applied in conditions wherein these processes are not suitable.
- the process of magnesite ore enrichment is explained wherein the ore, according to the magnetic separation method, is first turned into powder by being burned, then subjected to abrasive crushing for the separation of the gangue therefrom.
- the aim of the present invention is the realization of the easy and low-cost enrichment of magnesite ore.
- the magnesite ore to be used in the magnesite enrichment process reacts by being passed from an alkaline solution and the Si0 2 rate of the ore is decreased by enabling the silicon dioxide constituents contained therein to pass to the solution.
- the magnesite ore in order to be enriched the magnesite ore is kept in a liquid solution which contains alkalis like KOH, K 2 C0 3 , NaOH, Na 2 C0 3 , Na citrate, sodium stearate and which is heated to temperatures between 40°C to 90°C.
- the impurities in the ore react with the chemical solution and the Si0 2 containing compounds bonded thereto are removed from the ore.
- the process can be used in magnesite ores containing Si02 in ratios between 0.2 % - 5 %.
- the Si02 content in the ores is reduced by 40 % - 80 % by this process.
- cost and facilitation advantage is provided with respect to the present chemical enrichment processes.
- the most important advantage of this process is that it can be applied to 1 - 30 mm. particle sized group without fine grinding the ore to be enriched and is the distinctive characteristic of the process with respect to conventional chemical enrichment processes.
- the process of the present invention not only has cost and facility advantage over conventional chemical processes, but it can also be applied to high tonnages of ore. Detailed Description of the Invention
- the magnesite ore is a mineral having a structure of minute crystals (cryptocrystalline) and large crystals (macrocrystalline) and contains at least some of the various impurities (iron, calcium, aluminum and silicon dioxide (Si0 2 )), carbon dioxide (C0 2 ) and magnesia (MgO).
- the magnesite enrichment process comprises the steps of mixing the magnesite ore with an alkaline solution and thus removing Si0 2 compound contained therein, and washing and drying the enriched ore.
- the ratio of CaO/Si0 2 is an important factor for magnesite quality and the molecular ratio is required to be around 2.
- Si0 2 is enabled to be removed from the magnesite ore.
- the alkaline carbonates and hydroxides are ionized in water and react with Si02 contained in the ore, and thus Si02 is removed from the ore structure. Parallel to this decrease, the ratio of CaO/Si0 2 is enabled to be increased and thus the magnesite ore is enabled to be enriched and made suitable for refractor production.
- the magnesite ore containing Si0 2 as impurity reacts with the alkaline solution as shown below: Alkali + Magnesite Ore Enriched + Na 2 Si0 3 + C0 2 + H 2 0
- the enrichment process comprises the step of crushing the magnesite ore into small particles before being passed through the alkaline solution.
- the ore is broken and crushed by for example jaw or cone crushers so that the alkaline solution penetrates into every part of the magnesite ore.
- the particle size being in the interval of 1 - 30 mm. is sufficient for the solution to penetrate into the ore.
- the magnesite ore is subjected to magnetic field thereby separating the magnetic components therein and contains Si0 2 compound that is decreased to a ratio of between 0.5 - 2 %.
- the magnesite ore that also contains magnetic impurities in its natural form is cleansed of the impurities with magnetic features contained therein by being first subjected to the magnetic field.
- the Si0 2 that is bonded to the magnetic component in the ore is decreased to a certain level and made ready for the application of the enrichment process.
- the magnesite ore is mixed with the chemical solution at a ratio of 5/1, 10/1 and 20/1 depending on the Si0 2 ratio that is contained therein. For example, it is sufficient to mix 100 gr. of ore having 3% Si0 2 with 500 ml. of chemical solution.
- the magnesite ore is mixed with heated chemical solution.
- the solution is enabled to react with the ore more effectively.
- the magnesite ore is kept in the chemical solution for a period of time. For example, the ore is kept in the solution for 30 minutes, thus it is ensured that the solution completely reacts with the ore.
- Si0 2 is removed from the ore as Na 2 Si0 3 with the solution as a result of the above reaction.
- the chemical in the solution that does not react can be used again after the waste portion is filtered.
- the process of the present invention can be directly applied to the ore.
- the ore does not have to be fine grinded, and coarse grained ore can be used.
- no grinding or re-briquetting cost incurs. Both cost and ease of utilization advantages are provided in industrial applications of high tonnages.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
The present invention relates to the enrichment of a magnesite ore which is a mineral having a structure of minute crystals (cryptocrystalline) and large crystals (macrocrystalline) and which contains at least some of the various impurities (iron, calcium, aluminum and silicon dioxide (SiO2)), carbon dioxide (CO2) and magnesia (MgO). The magnesite ore (MgCO3 ) enrichment process, comprises the steps of mixing the magnesite ore with an alkaline solution and thus removing Si02 compound contained therein, and washing and drying the enriched ore.
Description
MAGNESITE ORE ENRICHMENT PROCESS
Technical Field
The present invention relates to the enrichment of magnesite ore. Prior Art
Magnesite is a carbonate depicted as MgC03i theoretically comprising 47.8 % MgO and 52.2 % C02. It is a natural ore used as raw material in the production of heat resistant, basic refractory and oven materials needed mainly in industries requiring high heat like iron-steel industry, cement industry, lime industry and non-ferrous metal industry. This ore is also used in the chemical industry and pharmaceutical industry in the preparation of various reactives and drug products.
Its color varies between white, yellow or grey and brown. In nature it is formed in two forms, being cryptocrystalline (gel/amorphous) and crystalline (macrocrystalline). The quality of the ore increases or decreases according to the amounts of impurities contained. In nature, it is very hard to find magnesite with the required characteristics that are suitable for areas of utilization. Any foreign element contained in magnesite with an extent of more or less than 0.1 % determines whether or not magnesite can be considered economically viable with the present technology. The natural magnesite ore contains the impurities such as Si02, CaC03, A1203 and Fe203. The amount and ratio of impurities contained in the ore determine the quality and sale price of the ore.
The magnesite technology starts with the production of the ore from the mineral deposit. The ore produced from the mineral deposit generally by surface mining methods and seldom by underground mining methods is in general subjected to an enrichment process. The enrichment process is realized by removing gangue materials from the ore.
In order to perform the optical enrichment, a widely used enrichment process, the enclosing rocks should differ from the ore in terms of color. In order for the other enrichment process, which is magnetic enrichment, to be effective the ore and/or the enclosing rocks should have magnetic properties. The above-mentioned processes cannot be used in ores that do not have distinctive color, density and magnetic feature differences. The chemical enrichment method is applied in conditions wherein these processes are not suitable.
In the state of the art United States Patent Document No. US3936372, the process of magnesite ore enrichment is explained wherein the ore, according to the magnetic separation method, is first turned into powder by being burned, then subjected to abrasive crushing for the separation of the gangue therefrom.
In the state of the art Canadian Patent Document No. CA1064863, it is disclosed that the magnesite ore is enriched chemically by being passed through a solution containing ammonium and alcohol. The Aim of the Invention
The aim of the present invention is the realization of the easy and low-cost enrichment of magnesite ore.
Summary of the Invention
The magnesite ore to be used in the magnesite enrichment process, realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof, reacts by being passed from an alkaline solution and the Si02 rate of the ore is decreased by enabling the silicon dioxide constituents contained therein to pass to the solution.
In an embodiment of the present invention, in order to be enriched the magnesite ore is kept in a liquid solution which contains alkalis like KOH, K2C03, NaOH, Na2C03, Na citrate, sodium stearate and which is heated to temperatures between 40°C to 90°C. The impurities in the ore react with the chemical solution and the Si02 containing compounds bonded thereto are removed from the ore. The process can be used in magnesite ores containing Si02 in ratios between 0.2 % - 5 %. The Si02 content in the ores is reduced by 40 % - 80 % by this process. In this process cost and facilitation advantage is provided with respect to the present chemical enrichment processes. The most important advantage of this process is that it can be applied to 1 - 30 mm. particle sized group without fine grinding the ore to be enriched and is the distinctive characteristic of the process with respect to conventional chemical enrichment processes.
The process of the present invention not only has cost and facility advantage over conventional chemical processes, but it can also be applied to high tonnages of ore.
Detailed Description of the Invention
The magnesite ore (Magnesium carbonate, MgC03) is a mineral having a structure of minute crystals (cryptocrystalline) and large crystals (macrocrystalline) and contains at least some of the various impurities (iron, calcium, aluminum and silicon dioxide (Si02)), carbon dioxide (C02) and magnesia (MgO).
The magnesite enrichment process comprises the steps of mixing the magnesite ore with an alkaline solution and thus removing Si02 compound contained therein, and washing and drying the enriched ore.
Not only the content of magnesia (MgO) but also the amount and ratios of other impurities have important effects on the quality of magnesite. The ratio of CaO/Si02 is an important factor for magnesite quality and the molecular ratio is required to be around 2. In order to increase the ratio of CaO/Si02 , Si02 is enabled to be removed from the magnesite ore. The alkaline carbonates and hydroxides are ionized in water and react with Si02 contained in the ore, and thus Si02 is removed from the ore structure. Parallel to this decrease, the ratio of CaO/Si02 is enabled to be increased and thus the magnesite ore is enabled to be enriched and made suitable for refractor production.
The magnesite ore containing Si02 as impurity reacts with the alkaline solution as shown below: Alkali + Magnesite Ore Enriched + Na2Si03 + C02 + H20
NaHCO- Magnesite Ore
(MgC03> Si02> C02)
Na2C03 (MgC03)
NaOH
In an embodiment of the present invention, the enrichment process comprises the step of crushing the magnesite ore into small particles before being passed through the alkaline solution. The ore is broken and crushed by for example jaw or cone crushers so that the
alkaline solution penetrates into every part of the magnesite ore. The particle size being in the interval of 1 - 30 mm. is sufficient for the solution to penetrate into the ore.
In an embodiment of the present invention, the magnesite ore is subjected to magnetic field thereby separating the magnetic components therein and contains Si02 compound that is decreased to a ratio of between 0.5 - 2 %. The magnesite ore that also contains magnetic impurities in its natural form is cleansed of the impurities with magnetic features contained therein by being first subjected to the magnetic field. Thus, the Si02 that is bonded to the magnetic component in the ore is decreased to a certain level and made ready for the application of the enrichment process.
In an embodiment of the present invention, the magnesite ore is mixed with the chemical solution at a ratio of 5/1, 10/1 and 20/1 depending on the Si02 ratio that is contained therein. For example, it is sufficient to mix 100 gr. of ore having 3% Si02 with 500 ml. of chemical solution.
In an embodiment of the present invention, the magnesite ore is mixed with heated chemical solution. Thus, the solution is enabled to react with the ore more effectively. In an embodiment of the present invention, the magnesite ore is kept in the chemical solution for a period of time. For example, the ore is kept in the solution for 30 minutes, thus it is ensured that the solution completely reacts with the ore.
After the mixing process, Si02 is removed from the ore as Na2Si03 with the solution as a result of the above reaction. The chemical in the solution that does not react can be used again after the waste portion is filtered.
The process of the present invention can be directly applied to the ore. The ore does not have to be fine grinded, and coarse grained ore can be used. Thus, no grinding or re-briquetting cost incurs. Both cost and ease of utilization advantages are provided in industrial applications of high tonnages.
It is to be understood that the present invention is not limited to the embodiments disclosed above and a person skilled in the art can easily introduce different embodiments. These
should be considered within the scope of the protection postulated by the claims of the present invention.
Claims
1. A magnesite ore (MgC03) enrichment process, comprising the steps of mixing the magnesite ore with an alkaline solution and thus removing Si02 compound contained therein, and washing and drying the enriched ore.
2. A magnesite enrichment process as in Claim 1, comprising the step of crushing the magnesite ore into small particles of between 1 - 30 mm. in size before being passed through the alkaline solution.
3. A magnesite enrichment process as in Claim 1 and 2, comprising the- steps of subjecting the magnesite ore to magnetic field thereby separating the magnetic components therein and decreasing the Si02 ratio to between 0.5 - 2 %.
4. A magnesite enrichment process as in any one of the above claims, comprising the step of mixing the magnesite ore with the chemical solution at a ratio of 5/1, 10/1 and 20/1 depending on the Si02 ratio that is contained therein.
5. A magnesite enrichment process as in any one of the above claims, comprising the step of heating the alkaline solution.
6. A magnesite enrichment process as in any one of the above claims, comprising the step of keeping the magnesite ore in the alkaline solution for a period of time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/TR2013/000354 WO2015076761A1 (en) | 2013-11-25 | 2013-11-25 | Magnesite ore enrichment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/TR2013/000354 WO2015076761A1 (en) | 2013-11-25 | 2013-11-25 | Magnesite ore enrichment process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2015076761A1 true WO2015076761A1 (en) | 2015-05-28 |
Family
ID=50031490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/TR2013/000354 WO2015076761A1 (en) | 2013-11-25 | 2013-11-25 | Magnesite ore enrichment process |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2015076761A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108514952A (en) * | 2018-04-26 | 2018-09-11 | 丛茂生 | Giobertite method for floating |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191417311A (en) * | 1913-12-24 | 1915-08-12 | Anton Hambloch | Improved Process for the Preparation of Carbonate of Magnesia from Minerals containing Calcium and Magnesium. |
| US2373123A (en) * | 1944-08-02 | 1945-04-10 | John W Lefforge | Flotation of magnesite |
| US2831574A (en) * | 1953-12-10 | 1958-04-22 | Basic Inc | Beneficiation of low grade magnesite ores |
| US3936372A (en) | 1971-11-24 | 1976-02-03 | Financial Mining-Industrial And Shipping Corporation | Method for beneficiation of magnesite ore |
| US4147614A (en) * | 1976-06-10 | 1979-04-03 | Theodor Gambopoulos | Aqueous mixture of diesel oil, pine oil and diamine for conditioning of crushed magnesite ore in magnetic beneficiation process |
| US4171261A (en) * | 1975-11-11 | 1979-10-16 | Chem-Y, Fabriek Van Chemische Produkten B.V. | Process for the flotation of ores and collector for use in this process |
| CA1064863A (en) | 1975-07-22 | 1979-10-23 | Financial Mining - Industrial And Shipping Corporation | Process for benefication of various ores and particularly for magnesite ore |
-
2013
- 2013-11-25 WO PCT/TR2013/000354 patent/WO2015076761A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191417311A (en) * | 1913-12-24 | 1915-08-12 | Anton Hambloch | Improved Process for the Preparation of Carbonate of Magnesia from Minerals containing Calcium and Magnesium. |
| US2373123A (en) * | 1944-08-02 | 1945-04-10 | John W Lefforge | Flotation of magnesite |
| US2831574A (en) * | 1953-12-10 | 1958-04-22 | Basic Inc | Beneficiation of low grade magnesite ores |
| US3936372A (en) | 1971-11-24 | 1976-02-03 | Financial Mining-Industrial And Shipping Corporation | Method for beneficiation of magnesite ore |
| CA1064863A (en) | 1975-07-22 | 1979-10-23 | Financial Mining - Industrial And Shipping Corporation | Process for benefication of various ores and particularly for magnesite ore |
| US4171261A (en) * | 1975-11-11 | 1979-10-16 | Chem-Y, Fabriek Van Chemische Produkten B.V. | Process for the flotation of ores and collector for use in this process |
| US4147614A (en) * | 1976-06-10 | 1979-04-03 | Theodor Gambopoulos | Aqueous mixture of diesel oil, pine oil and diamine for conditioning of crushed magnesite ore in magnetic beneficiation process |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108514952A (en) * | 2018-04-26 | 2018-09-11 | 丛茂生 | Giobertite method for floating |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2859974C (en) | Recovery method for a continuous calcium extraction and pcc production | |
| US20170283293A1 (en) | Method for recycling byproduct sludge in recycled aggregate producing process from waste concrete | |
| CN100462449C (en) | Magnesite hot enriching process | |
| Wang et al. | Kinetics of SiO2 leaching from Al2O3 extracted slag of fly ash with sodium hydroxide solution | |
| Wang et al. | Extraction of alumina from fly ash by ammonium hydrogen sulfate roasting technology | |
| WO2015114703A1 (en) | Phosphorus and calcium collection method, and mixture produced by said collection method | |
| KR101161755B1 (en) | Method enhancing the grade of limestone | |
| CN106747497A (en) | The method for preparing corundum-mullite composite diphase material | |
| CN104131157B (en) | Tungsten oxide limonite refines the Wet-smelting method of tungsten | |
| CN101845550A (en) | Method for extracting aluminum hydroxide and aluminum oxide from side product obtained by preparing magnesium metal by taking aluminum or aluminum alloy as reducing agent | |
| KR101315350B1 (en) | Treating method of byproduct | |
| WO2015076761A1 (en) | Magnesite ore enrichment process | |
| CN114368770A (en) | Method for recovering alumina from coal gangue | |
| US2210892A (en) | Process for recovering magnesium oxide | |
| KR101401536B1 (en) | Adsorbent slurry manufacturing method for removal of sulfur compounds in wastewater | |
| Kim et al. | Preparation of high purity nano silica particles from blast-furnace slag | |
| Klochkovskii et al. | The principles of processing siderite ores with a high magnesium oxide content | |
| CN102602948A (en) | Method for separation of silicon and magnesium in serpentine mines by adopting supercritical technology | |
| Shoppert et al. | Obtaining of pigment-quality magnetite from sintering process red mud | |
| Meher et al. | Recovery of Al and Na Values from Red Mud by BaO‐Na2CO3 Sinter Process | |
| US2343151A (en) | Method of processing dolomite | |
| KR101974562B1 (en) | Method for treating byproduct | |
| Erdogan | The Best Suitable Beneficiation Method for Magnesite Ore | |
| CA1100284A (en) | Method for obtaining aluminium oxide | |
| CN101121535A (en) | A carbochlorination method for extracting and separating boron and magnesium from boron-rich slag |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 13826795 Country of ref document: EP Kind code of ref document: A1 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 13826795 Country of ref document: EP Kind code of ref document: A1 |