Abstract

Cationic reverse flotation methods, systems, and processes for producing a marketable iron oxide concentrate from an iron oxide mineral slurry ("treatment slurry"), wherein the iron oxide content of the concentrate is greater than the iron oxide content of the treatment slurry, include introducing the treatment slurry into a flotation cell, together with a collector, a frother and optionally an iron oxide depressant, and recovering two flow streams from the flotation cell, namely a froth fraction (also referred to as a flotation tail fraction) and a sink material fraction (also referred to as the flotation concentrate), wherein the treatment slurry in the flotation cell is maintained at a Natural pH.

IPC Classes  ?

• B03D 1/012 - Organic compounds containing sulfur
• B03D 1/016 - Macromolecular compounds
• B03D 1/02 - Froth-flotation processes

Abstract

Cationic reverse flotation methods, systems, and processes for producing a marketable iron oxide concentrate from an iron oxide mineral slurry ("treatment slurry"), wherein the iron oxide content of the concentrate is greater than the iron oxide content of the treatment slurry, include introducing the treatment slurry into a flotation cell, together with a collector, a frother and optionally an iron oxide depressant, and recovering two flow streams from the flotation cell, namely a froth fraction (also referred to as a flotation tail fraction) and a sink material fraction (also referred to as the flotation concentrate), wherein the treatment slurry in the flotation cell is maintained at a Natural pH.

IPC Classes  ?

• B03D 1/02 - Froth-flotation processes
• B03D 1/012 - Organic compounds containing sulfur
• B03D 1/016 - Macromolecular compounds

Abstract

Cationic reverse flotation methods, systems, and processes for producing a marketable iron oxide concentrate from an iron oxide mineral slurry (“treatment slurry”), wherein the iron oxide content of the concentrate is greater than the iron oxide content of the treatment slurry, include introducing the treatment slurry into a flotation cell, together with a collector, a frother and optionally an iron oxide depressant, and recovering two flow streams from the flotation cell, namely a froth fraction (also referred to as a flotation tail fraction) and a sink material fraction (also referred to as the flotation concentrate), wherein the treatment slurry in the flotation cell is maintained at a Natural pH.

IPC Classes  ?

• B03D 1/02 - Froth-flotation processes
• B03D 1/004 - Organic compounds
• C01G 49/02 - OxidesHydroxides
• B01D 21/00 - Separation of suspended solid particles from liquids by sedimentation
• B01D 21/30 - Control equipment
• B01D 21/01 - Separation of suspended solid particles from liquids by sedimentation using flocculating agents

Abstract

There are provided devices, systems and processes to treat slurries that include magnetic and nonmagnetic particles suspended in water in such a fashion as to separate certain valuable elements and/or minerals from less valuable minerals or elements. A high intensity magnetic separator includes at least one large rotatable turntable that defines at least one circular channel therethrough in which a matrix material is positioned. The turntable is configured to rotate in a generally horizontal plane about a generally vertical virtual axis, causing the at least one circular channel to rotate through a plurality of intermittent magnetic and nonmagnetic zones generated by a plurality of permanent magnet members. A treatment slurry is directed into the channel or channels in one or more of the magnetic zones as the turntable rotates. A tailings fraction passes through the channel or channels in a generally downward direction in the magnetic zones and is collected in tailings launders. Magnetic particles are attracted to the matrix material in the magnetic zones and remain in the channel until it passes into an adjacent nonmagnetic zone, where the magnetic particles are washed form the channel into concentrate launders.

IPC Classes  ?

• B03C 1/03 - High gradient magnetic separators with circulating matrix or matrix elements rotating, e.g. of the carousel type

Abstract

Slurries of magnetic and nonmagnetic particles in water are treated in a high intensity magnetic separator including at least one turntable that defines at least one circular channel therethrough in which a matrix material is positioned. Rotation of the turntable in a generally horizontal plane about a generally vertical virtual axis causes the circular channel(s) to rotate through a plurality of magnetic and nonmagnetic zones generated by magnet members. Treatment slurry is directed into the channel(s) in one or more of the magnetic zones as the turntable rotates. A tailings fraction passing through the channel(s) in a generally downward direction in the magnetic zones is collected in tailings launders. Magnetic particles attracted to the matrix material in the magnetic zones remain in the channel(s) until they pass into an adjacent nonmagnetic zone, where the magnetic particles are washed from the channel(s) into concentrate launders.

IPC Classes  ?

• B03C 1/03 - High gradient magnetic separators with circulating matrix or matrix elements rotating, e.g. of the carousel type

Abstract

Devices, systems and processes to treat slurries that include magnetic and nonmagnetic particles suspended in water in such a fashion as to separate certain valuable elements and/or minerals from less valuable minerals or elements A high intensity magnetic separator includes at least one large rotatable turntable that defines at least one circular channel therethrough in which a matpx material is positioned The turntable is configured to rotate in a generally horizontal plane about a generally vertical virtual axis, causing the at least one circular channel to rotate through a plurality of intermittent magnetic and nonmagnetic zones generated by a plurality of permanent magnet members A treatment slurry is directed into the channel or channels in one or more of the magnetic zones as the turntable rotates A tailings fraction passes through the channel or channels in a generally downward direction in the magnetic zones and is collected in tailings launders.

IPC Classes  ?

• B03C 1/00 - Magnetic separation

Abstract

There are provided devices, systems and processes to treat slurries that include magnetic and nonmagnetic particles suspended in water in such a fashion as to separate certain valuable elements and/or minerals from less valuable minerals or elements. A high intensity magnetic separator includes at least one large rotatable turntable that defines at least one circular channel therethrough in which a matrix material is positioned. The turntable is configured to rotate in a generally horizontal plane about a generally vertical virtual axis, causing the at least one circular channel to rotate through a plurality of intermittent magnetic and nonmagnetic zones generated by a plurality of permanent magnet members. A treatment slurry is directed into the channel or channels in one or more of the magnetic zones as the turntable rotates. A tailings fraction passes through the channel or channels in a generally downward direction in the magnetic zones and is collected in tailings launders. Magnetic particles are attracted to the matrix material in the magnetic zones and remain in the channel until it passes into an adjacent nonmagnetic zone, where the magnetic particles are washed form the channel into concentrate launders.

IPC Classes  ?

• B03C 1/03 - High gradient magnetic separators with circulating matrix or matrix elements rotating, e.g. of the carousel type

Abstract

Methods to separate certain valuable elements and/or minerals that utilize wet screens, hydro-cyclones, low intensity magnetic separators and/or Mag Wheel™ separators, including a specially designed magnetic field amplifying matrix. The methods are applicable to mining, manufacturing, mineral processing, or other treatment processes or systems.

IPC Classes  ?

• B03C 1/00 - Magnetic separation