WO2016133379A3 - Magnetic flotation and aggregation process and device for the concentration of magnetic iron minerals - Google Patents
Magnetic flotation and aggregation process and device for the concentration of magnetic iron minerals Download PDFInfo
- Publication number
- WO2016133379A3 WO2016133379A3 PCT/MX2016/000013 MX2016000013W WO2016133379A3 WO 2016133379 A3 WO2016133379 A3 WO 2016133379A3 MX 2016000013 W MX2016000013 W MX 2016000013W WO 2016133379 A3 WO2016133379 A3 WO 2016133379A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- gangue
- column
- bubbles
- magnetic
- tailings
- 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.)
- Ceased
Links
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
- B03C1/02—Magnetic separation acting directly on the substance being separated
Landscapes
- Manufacture And Refinement Of Metals (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention relates to a novel device and process for enriching magnetic minerals (magnetite) by removing metal sulphides, silicates, phosphates and other unwanted particles, characterised by a device comprising a downflow pipe (mixer) and a separation column surrounded by Helmholtz coils. Pulp is fed into the mixer, in which air bubbles form in the presence of the pulp and bubble-particle collection processes are performed. The mixer discharges the pulp-bubble mixture into the separation column in a region that has a low magnetic field, less than 200 Gauss, which can be adjusted. Non-magnetic particles (gangue) are removed by the bubbles at the upper part of the column to form the tailings from the process, while magnetic particles sediment rapidly on the bottom of the column, from where they are removed to form the iron concentrate. As a result of the increase in the percentage of solids in the concentrate cone, most of the water that enters the device is discharged in the tailings, generating an upward flow of water which drags the gangue particles that were not captured by the bubbles. Using these mechanisms, the gangue is discharged in the tailings by two methods: flotation, and hydrodynamic drag. The magnetite forms aggregates of sufficient weight that they are not conveyed by the bubbles but sediment rapidly on the bottom of the column, allowing selective separation of magnetite and gangue.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MXMX/A/2015/002174 | 2015-02-18 | ||
| MX2015002174A MX378348B (en) | 2015-02-18 | 2015-02-18 | MAGNETIC AGGREGATION AND FLOTATION PROCESS AND EQUIPMENT FOR THE CONCENTRATION OF MAGNETIC IRON ORES |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| WO2016133379A2 WO2016133379A2 (en) | 2016-08-25 |
| WO2016133379A3 true WO2016133379A3 (en) | 2016-10-13 |
| WO2016133379A4 WO2016133379A4 (en) | 2016-12-08 |
Family
ID=56689054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/MX2016/000013 Ceased WO2016133379A2 (en) | 2015-02-18 | 2016-02-16 | Magnetic flotation and aggregation process and device for the concentration of magnetic iron minerals |
Country Status (2)
| Country | Link |
|---|---|
| MX (1) | MX378348B (en) |
| WO (1) | WO2016133379A2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CL2016003331A1 (en) | 2016-12-26 | 2017-05-05 | Univ Chile | Magneto-centrifugal flotation cell for mineral concentration that reduces water consumption |
| CN109013068B (en) * | 2018-08-01 | 2020-07-28 | 中冶北方（大连）工程技术有限公司 | Quality-improving and impurity-reducing process for copper ore |
| CN113385300A (en) * | 2021-05-28 | 2021-09-14 | 鞍钢集团矿业有限公司 | Ore grinding-weak magnetic strong magnetic-gravity separation-jet flow flotation process for magnetic hematite |
| CN114018676A (en) * | 2021-09-30 | 2022-02-08 | 铜陵有色金属集团股份有限公司 | Magnetic separation device for separating magnetic iron in iron ore and use method thereof |
| CN114178054A (en) * | 2021-12-16 | 2022-03-15 | 湖南柿竹园有色金属有限责任公司 | Efficient reverse flotation method for improving grade of fine-grained refractory magnetite |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991015302A1 (en) * | 1990-04-11 | 1991-10-17 | Hydro Processing & Mining Ltd. | Apparatus and method for separation of wet and dry particles |
| WO1993013863A1 (en) * | 1992-01-06 | 1993-07-22 | Hydro Processing & Mining Ltd. | Apparatus and method for separation of wet particles |
| EP1437177A1 (en) * | 2001-10-18 | 2004-07-14 | Aleksei Alekseevich Stafeev | Magnetic hydroseparator |
| WO2009022895A1 (en) * | 2007-07-31 | 2009-02-19 | Yuri Nahmad Molinari | Process and reactor for reverse flotation and elutriation, assisted by selective aggregation induced by uniform or descending-linear-gradient magnetic fields for the concentration of magnetic minerals |
-
2015
- 2015-02-18 MX MX2015002174A patent/MX378348B/en unknown
-
2016
- 2016-02-16 WO PCT/MX2016/000013 patent/WO2016133379A2/en not_active Ceased
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991015302A1 (en) * | 1990-04-11 | 1991-10-17 | Hydro Processing & Mining Ltd. | Apparatus and method for separation of wet and dry particles |
| WO1993013863A1 (en) * | 1992-01-06 | 1993-07-22 | Hydro Processing & Mining Ltd. | Apparatus and method for separation of wet particles |
| EP1437177A1 (en) * | 2001-10-18 | 2004-07-14 | Aleksei Alekseevich Stafeev | Magnetic hydroseparator |
| WO2009022895A1 (en) * | 2007-07-31 | 2009-02-19 | Yuri Nahmad Molinari | Process and reactor for reverse flotation and elutriation, assisted by selective aggregation induced by uniform or descending-linear-gradient magnetic fields for the concentration of magnetic minerals |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016133379A4 (en) | 2016-12-08 |
| MX378348B (en) | 2025-03-10 |
| WO2016133379A2 (en) | 2016-08-25 |
| MX2015002174A (en) | 2016-08-17 |
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