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 PDF

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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
Application number
PCT/MX2016/000013
Other languages
Spanish (es)
French (fr)
Other versions
WO2016133379A4 (en
WO2016133379A2 (en
Inventor
Alejandro LÓPEZ VALDIVIESO
Mario Alberto CORONA ARROYO
Armando Encinas Oropesa
Yuri Nahmad Molinari
Original Assignee
López Valdivieso Alejandro
Corona Arroyo Mario Alberto
Armando Encinas Oropesa
Yuri Nahmad Molinari
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by López Valdivieso Alejandro, Corona Arroyo Mario Alberto, Armando Encinas Oropesa, Yuri Nahmad Molinari filed Critical López Valdivieso Alejandro
Publication of WO2016133379A2 publication Critical patent/WO2016133379A2/en
Publication of WO2016133379A3 publication Critical patent/WO2016133379A3/en
Publication of WO2016133379A4 publication Critical patent/WO2016133379A4/en

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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

  • Water Treatment By Electricity Or Magnetism (AREA)
  • Physical Water Treatments (AREA)
  • Manufacture And Refinement Of Metals (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.
PCT/MX2016/000013 2015-02-18 2016-02-16 Magnetic flotation and aggregation process and device for the concentration of magnetic iron minerals WO2016133379A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
MX2015002174A MX2015002174A (en) 2015-02-18 2015-02-18 Magnetic flotation and aggregation process and device for the concentration of magnetic iron minerals.
MXMX/A/2015/002174 2015-02-18

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 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) MX2015002174A (en)
WO (1) WO2016133379A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
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
WO2016133379A2 (en) 2016-08-25
MX2015002174A (en) 2016-08-17

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