Processing

Please wait...

Settings

Settings

Goto Application

1. WO2010089456 - METHOD AND ARRANGEMENT FOR SEPARATING TWO SOLUTIONS MIXED IN DISPERSION INTO TWO SOLUTION PHASES IN A LIQUID-LIQUID EXTRACTION SEPARATION CELL

Publication Number WO/2010/089456
Publication Date 12.08.2010
International Application No. PCT/FI2010/050070
International Filing Date 05.02.2010
Chapter 2 Demand Filed 04.10.2010
IPC
B01D 11/04 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
11Solvent extraction
04of solutions which are liquid
C22B 3/02 2006.01
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION OR REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
3Extraction of metal compounds from ores or concentrates by wet processes
02Apparatus therefor
CPC
B01D 11/04
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
11Solvent extraction
04of solutions which are liquid
B01D 11/0453
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
11Solvent extraction
04of solutions which are liquid
0446Juxtaposition of mixers-settlers
0453with narrow passages limited by plates, walls, e.g. helically coiled tubes
B01D 17/0211
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
17Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
02Separation of non-miscible liquids
0208by sedimentation
0211with baffles
B01D 17/0214
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
17Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
02Separation of non-miscible liquids
0208by sedimentation
0214with removal of one of the phases
C22B 3/0005
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION AND REFINING OF METALS
3Extraction of metal compounds from ores or concentrates by wet processes
0004Treatment or purification of solutions, e.g. obtained by leaching
0005by liquid-liquid extraction using organic compounds, e.g. acyclic or carbocyclic compounds, heterocyclic compounds, organo- metallic compounds, alcohols, ethers, or the like
C22B 3/02
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION AND REFINING OF METALS
3Extraction of metal compounds from ores or concentrates by wet processes
02Apparatus therefor
Applicants
  • OUTOTEC OYJ [FI]/[FI] (AllExceptUS)
  • NYMAN, Bror [FI]/[FI] (UsOnly)
  • EKMAN, Eero [FI]/[FI] (UsOnly)
  • PEKKALA, Pertti [FI]/[FI] (UsOnly)
  • LAITALA, Hannu [FI]/[FI] (UsOnly)
  • SAARIO, Rami [FI]/[FI] (UsOnly)
Inventors
  • NYMAN, Bror
  • EKMAN, Eero
  • PEKKALA, Pertti
  • LAITALA, Hannu
  • SAARIO, Rami
Agents
  • PAPULA OY
Priority Data
2009512209.02.2009FI
Publication Language English (EN)
Filing Language Finnish (FI)
Designated States
Title
(EN) METHOD AND ARRANGEMENT FOR SEPARATING TWO SOLUTIONS MIXED IN DISPERSION INTO TWO SOLUTION PHASES IN A LIQUID-LIQUID EXTRACTION SEPARATION CELL
(FR) PROCÉDÉ ET AGENCEMENT POUR LA SÉPARATION DE DEUX SOLUTIONS MÉLANGÉES SOUS FORME D'UNE DISPERSION EN DEUX PHASES DE TYPE SOLUTIONS DANS UNE CELLULE DE SÉPARATION PAR EXTRACTION LIQUIDE-LIQUIDE
Abstract
(EN)
The invention relates to a method and arrangement for separating two solutions mixed in dispersion into two solution phases in a liquid-liquid extraction separation cell (1). The shut-off element (3, 4, 5) comprises a front panel (8) that extends along the whole width of the cell. The front panel (8) includes a bottom edge (9), which is arranged at a distance (H1 H2 H3) from the cell bottom (7), so that the front panel (8) allows an unobstructed flow of the heavier solution phase directly forwards underneath the bottom edge (9). In the vertical direction, the front panel extends to such a height that it forces the lighter solution phase placed on the heavier solution phase to flow as a thin overflow layer over the top edge (12) of the front panel (8) and forces the dispersion to thicken in front of the front panel. The rear panel (15) is essentially parallel with the front panel (8) and placed at a distance (S) therefrom, so that in between the front panel and the rear panel, there is formed an uptake shaft (14) extending essentially vertically upwards, along which uptake shaft the thickened dispersion can rise upwardly and be compressed. At least one slanting plate (16) is in the direction of the flow placed at an inclined angle (δ), inclined upwardly with respect to the horizontal plane. The slanting plate attenuates and slows down the vertical component of the rising compressed dispersion flow and guides the dispersion essentially in the lengthwise direction of the cell as a dispersion flow to the successive separator part.
(FR)
L'invention porte sur un procédé et un agencement pour la séparation de deux solutions mélangées sous forme d'une dispersion en deux phases de type solutions dans une cellule de séparation par extraction liquide-liquide (1). L'élément de fermeture (3, 4, 5) comprend un panneau avant (8) qui s'étend le long de toute la largeur de la cellule. Le panneau avant (8) comprend un bord inférieur (9), qui est disposé à une certaine distance (H1, H2, H3) du fond de la cellule (7), de sorte que le panneau avant (8) permet un écoulement dégagé de la phase de type solution plus lourde directement vers l'avant sous le bord inférieur (9). Dans la direction verticale, le panneau avant s'étend à une hauteur telle qu'il force la phase de type solution plus légère placée sur la phase de type solution plus lourde à s'écouler sous forme d'une couche mince de débordement par-dessus le bord supérieur (12) du panneau avant (8) et force la dispersion à s'épaissir devant le panneau avant. Le panneau arrière (15) est essentiellement parallèle au panneau avant (8) et placé à une distance (S) de celui-ci, de sorte qu'entre le panneau avant et le panneau arrière, il est formé un puits de sortie (14) s'étendant essentiellement verticalement vers le haut, le long duquel puits de sortie la dispersion épaissie peut s'élever vers le haut et être comprimée. Au moins une plaque inclinée (16) se trouve dans la direction de l'écoulement placée à un angle incliné (δ), inclinée vers le haut par rapport au plan horizontal. La plaque inclinée atténue et ralentit la composante verticale de l'écoulement de la dispersion comprimée qui s'élève et guide la dispersion essentiellement dans la direction de la longueur de la cellule sous forme d'un écoulement de dispersion vers la partie séparateur suivante.
Latest bibliographic data on file with the International Bureau