Abstract: A mixing arrangement for mixing two solutions, a mixer settler unit and a use. The mixing arrangement includes a mixing device arranged in the mixing space for rotating therein, the mixing device comprising at least two helical bars supported around a shaft and rising upwards from the bottom section of the mixing space. The helical bars are fixed to the shaft with support spokes. The ratio of the diameter (D) of the mixing device to the average diameter (T) of the mixing space, that is D/T, is 0.47 at most.

Abstract: A method of manufacturing a launder to be used in co-operation with a solvent extraction settler comprises manufacturing at the site of manufacture, such as in an engineering workshop, a plurality of self-supporting launder element modules, each having exterior dimensions, strength and handling and securing means conforming to shipping container standards, transporting the launder element modules to the site of installation as normal freight by transport equipment, such as trucks, trailers and container ships, capable of handling and transporting shipping container standard compatible units, and assembling at the site of installation the launder element modules into a module group forming a complete launder. The launder comprises a launder module group consisting of self-supporting launder element modules, each having exterior dimensions, strength and handling and securing means conforming to shipping container standards to enable shipping container standard compatible transportability.

Abstract: A method of manufacturing a solvent extraction settler comprises manufacturing at the site of manufacture, such as in an engineering workshop, a plurality of self-supporting settler element modules (2, 3, 4, 5) each having exterior dimensions, strength and handling and securing means (6) conforming to shipping container standards, transporting the modules (2, 3, 4, 5) to the site of installation as normal freight by transport equipment, such as trucks, trailers and container ships, capable of handling and transporting shipping container standard compatible units, and assembling the modules (2, 3, 4, 5) into a complete settler at the site of installation. The settler comprises a module group (1) consisting of a plurality of self-supporting settler element modules (2, 3, 4, 5) each having exterior dimensions, strength and handling and securing means (6) conforming to ISO shipping container standards to enable ISO compatible transportability.

Abstract: In a solvent extraction settler arrangement the outlet box comprises an inner tube arranged vertically inside a shaft, the inner tube being spaced from the side wall of the shaft to define an intermediate space between the inner tube and the shaft. The inner tube has an inner space and an opening at the lower part of the inner tube adjacent the bottom to form a flow path for the heavy solution phase to flow to the inner space. The shaft comprises a second outlet which is separate in relation to the discharge outlet and above the level of the discharge outlet. The second outlet opens through the side wall to the intermediate space at a location adjacent to the upper end of the shaft and at the level of said layer of entrained light solution phase for discharging said layer of entrained light solution phase from the intermediate space.

Abstract: A method of manufacturing a launder (1) to be used in co-operation with a solvent extraction settler (2) comprises manufacturing at the site of manufacture, such as in an engineering workshop, a plurality of self-supporting launder element modules (3), each having exterior dimensions, strength and handling and securing means (4) conforming to shipping container standards, transporting the launder element modules (3) to the site of installation as normal freight by transport equipment, such as trucks, trailers and container ships, capable of handling and transporting shipping container standard compatible units, and assembling at the site of installation the launder element modules (3) into a module group (5) forming a complete launder.

Abstract: A solvent extraction settler arrangement comprising a mixing unit for preparing a dispersion from mutually immiscible solutions and a settler having a feed end and a discharge end. The settler is arranged to separate solution phases from a dispersion fed from the feed end while the dispersion flows towards the discharge end. The arrangement further comprises a feeding device located at the feed end for feeding the dispersion prepared by the mixing unit to the settler. The feeding device comprises an elongated feed launder having a first end for receiving the dispersion from the mixing unit, and a second end. The feed launder extends alongside the feed end of the settler. The feed launder has a form of a conical tube with a cross-section converging towards the second end and an inclined bottom ascending towards the second end.

Abstract: A solvent extraction settler arrangement comprising a mixing unit for preparing a dispersion from mutually immiscible solutions and a settler having a feed end and a discharge end. The settler is arranged to separate solution phases from a dispersion fed from the feed end while the dispersion flows towards the discharge end. The arrangement further comprises a feeding device located at the feed end for feeding the dispersion prepared by the mixing unit to the settler. The feeding device comprises an elongated feed launder having a first end for receiving the dispersion from the mixing unit, and a second end. The feed launder extends alongside the feed end of the settler. The feed launder has a form of a conical tube with a cross-section converging towards the second end and an inclined bottom ascending towards the second end.

Abstract: In a method for fabricating a separation fence (1) to be used in a hydrometallurgical liquid-liquid solvent extraction settler, the fence is manufactured of polymer resin. The fence (1) is manufactured as a shell-like integral piece by rotational molding. The fence (1) is a rotationally molded shell-like integral piece.

Abstract: A solvent extraction settler arrangement comprises a settler (1) having a feed end (2) and a discharge end (3), said settler being arranged to separate solution phases from a dispersion fed from the feed end while the dispersion flows to the discharge end. Elongated discharge launders (4, 5) are arranged at the discharge end (3) of the settler for each solution phase to be separated from the dispersion, each discharge launder (4, 5) including a first end (6), an outlet (7, 8) arranged at the first end, and a closed second end (9). At least one of the discharge launders (4, 5) has a form of a conical tube with a cross-section converging from the first end (6) towards the second end (9) and an inclined bottom (10, 11) descending from the second end (9) towards the first end (6).

Abstract: A solvent extraction method for hydrometallurgical liquid-liquid extraction processes, in which method solution phases are separated from a dispersion while the dispersion flows horizontally in a settler from a feed end to a discharge end. The mass flow of the dispersion and solution phases is divided into a plurality of parallel and mutually separated plug flows flowing in the settler from the feed end to the discharge end. The settler (1) comprises a plurality of elongated settler sections (4) which are mutually separated and side by side in parallel to each other, Inc settler sections (4) extending from the feed end (2) to the discharge end (3), forming a plurality of mutually separated parallel plug flow channels.

Abstract: A method of manufacturing an elbow channel with an elbow angle. The method comprises manufacturing an elongated filament-reinforced plastic composite hollow body by a filament winding technology; miter-cutting the elongated hollow body at a cut angle, which is half of the desired elbow angle, to form a first body piece having an oblique first end, and a second body piece having an oblique second end; placing the first body piece and the second body piece in relation to each other to abut the first end and the second end against each other, so that the longitudinal symmetry axes of the first and second body pieces are at said elbow angle to each other; and attaching the first end and the second end to each other to form said elbow channel. The elbow channel is formed from first and second hollow body pieces is also provided.

Abstract: In a solvent extraction settler arrangement the outlet box comprises an inner tube arranged vertically inside a shaft, the inner tube being spaced from the side wall of the shaft to define an intermediate space between the inner tube and the shaft. The inner tube has an inner space and an opening at the lower part of the inner tube adjacent the bottom to form a flow path for the heavy solution phase to flow to the inner space. The shaft comprises a second outlet which is separate in relation to the discharge outlet and above the level of the discharge outlet. The second outlet opens through the side wall to the intermediate space at a location adjacent to the upper end of the shaft and at the level of said layer of entrained light solution phase for discharging said layer of entrained light solution phase from the intermediate space.

Abstract: The invention relates to a drive supporting structure (1) for a tank (2). The drive supporting structure (1) comprises a drive support element (3) for supporting a drive (30) and a support beam structure (4) for supporting the drive support element (3). The support beam structure (4) is arranged on top side of the tank (2) and comprises multiple support beams (5). The drive support element (3) comprises housing (6), which said housing (6) is fabricated by casting. The support beam structure (4) is detachably connected to the drive support element (3) for forming a connection between the drive support element (3) and the support beam structure (4). The invention further relates to a drive support element (3) for supporting a drive in a tank (2). The drive support element (3) comprises housing (6), which is fabricated by casting.

Abstract: A solvent extraction method for hydrometallurgical liquid-liquid extraction processes, in which method solution phases are separated from a dispersion while the dispersion flows horizontally in a settler from a feed end to a discharge end. The mass flow of the dispersion and solution phases is divided into a plurality of parallel and mutually separated plug flows flowing in the settler from the feed end to the discharge end. The settler (1) comprises a plurality of elongated settler sections (4) which are mutually separated and side by side in parallel to each other, Inc settler sections (4) extending from the feed end (2) to the discharge end (3), forming a plurality of mutually separated parallel plug flow channels.

Abstract: A solvent extraction settler (1) comprising a foundation (2). The solvent extraction settler (1) comprises self-supporting modules (3) each having the exterior dimensions, strength and corner fittings (4) conforming to shipping container standards. The foundation (2) comprises a plurality of pillars (5) on which the modules (3) are supported at a height above the ground level, thereby providing a space for piping and access below the settler. The pillars (5) comprise shipping standard compatible container lashing fittings (6, 7) to which the corner fittings (4) of the modules (3) can be connected.

Abstract: A solvent extraction settler arrangement comprises a settler (1) having a feed end (2) and a discharge end (3), said settler being arranged to separate solution phases from a dispersion fed from the feed end while the dispersion flows to the discharge end. Elongated discharge launders (4, 5) are arranged at the discharge end (3) of the settler for each solution phase to be separated from the dispersion, each discharge launder (4, 5) including a first end (6), an outlet (7, 8) arranged at the first end, and a closed second end (9). At least one of the discharge launders (4, 5) has a form of a conical tube with a cross-section converging from the first end (6) towards the second end (9) and an inclined bottom (10, 11) descending from the second end (9) towards the first end (6).

Abstract: A method of manufacturing a launder (1) to be used in co-operation with a solvent extraction settler (2) comprises manufacturing at the site of manufacture, such as in an engineering workshop, a plurality of self-supporting launder element modules (3), each having exterior dimensions, strength and handling and securing means (4) conforming to shipping container standards, transporting the launder element modules (3) to the site of installation as normal freight by transport equipment, such as trucks, trailers and container ships, capable of handling and transporting shipping container standard compatible units, and assembling at the site of installation the launder element modules (3) into a module group (5) forming a complete launder.

Abstract: A solvent extraction settler arrangement comprising a mixing unit for preparing a dispersion from mutually immiscible solutions and a settler having a feed end and a discharge end. The settler is arranged to separate solution phases from a dispersion fed from the feed end while the dispersion flows towards the discharge end. The arrangement further comprises a feeding device located at the feed end for feeding the dispersion prepared by the mixing unit to the settler. The feeding device comprises an elongated feed launder having a first end for receiving the dispersion from the mixing unit, and a second end. The feed launder extends alongside the feed end of the settler. The feed launder has a form of a conical tube with a cross-section converging towards the second end and an inclined bottom ascending towards the second end.

Abstract: A method of manufacturing a solvent extraction settler comprises manufacturing at the site of manufacture, such as in an engineering workshop, a plurality of self-supporting settler element modules (2, 3, 4, 5) each having exterior dimensions, strength and handling and securing means (6) conforming to shipping container standards, transporting the modules (2, 3, 4, 5) to the site of installation as normal freight by transport equipment, such as trucks, trailers and container ships, capable of handling and transporting shipping container standard compatible units, and assembling the modules (2, 3, 4, 5) into a complete settler at the site of installation. The settler comprises a module group (1) consisting of a plurality of self-supporting settler element modules (2, 3, 4, 5) each having exterior dimensions, strength and handling and securing means (6) conforming to ISO shipping container standards to enable ISO compatible transportability.

Abstract: In a method for fabricating a separation fence (1) to be used in a hydrometallurgical liquid-liquid solvent extraction settler, the fence is manufactured of polymer resin. The fence (1) is manufactured as a shell-like integral piece by rotational moulding. The fence (1) is a rotationally moulded shell-like integral piece.