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1. WO2017111685 - METHOD AND ARRANGEMENT FOR RECOVERY OF SALT

Publication Number WO/2017/111685
Publication Date 29.06.2017
International Application No. PCT/SE2016/051282
International Filing Date 19.12.2016
IPC
B09B 3/00 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
BDISPOSAL OF SOLID WASTE
3Destroying solid waste or transforming solid waste into something useful or harmless
C01D 3/08 2006.1
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
DCOMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
3Halides of sodium, potassium, or alkali metals in general
04Chlorides
08Preparation by working up natural or industrial salt mixtures or siliceous minerals
C01F 11/32 2006.1
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
FCOMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE EARTH METALS
11Compounds of calcium, strontium, or barium
20Halides
24Chlorides
32Purification
CPC
B01D 3/00
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
3Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
B01D 53/02
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols,
02by adsorption, e.g. preparative gas chromatography
B01D 53/64
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols,
34Chemical or biological purification of waste gases
46Removing components of defined structure
64Heavy metals or compounds thereof, e.g. mercury
B09B 3/00
BPERFORMING OPERATIONS; TRANSPORTING
09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
BDISPOSAL OF SOLID WASTE
3Destroying solid waste or transforming solid waste ; or contaminated solids; into something useful or harmless
C01D 3/04
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
DCOMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
3Halides of sodium, potassium or alkali metals in general
04Chlorides
C01D 3/08
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
DCOMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
3Halides of sodium, potassium or alkali metals in general
04Chlorides
08Preparation by working up natural or industrial salt mixtures or siliceous minerals
Applicants
  • EASYMINING SWEDEN AB [SE]/[SE]
Inventors
  • COHEN, Yariv
Agents
  • AROS PATENT AB
Priority Data
1551685-921.12.2015SE
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) METHOD AND ARRANGEMENT FOR RECOVERY OF SALT
(FR) PROCÉDÉ ET AGENCEMENT POUR RÉCUPÉRATION DU SEL
Abstract
(EN) A method for recovery of salts comprises providing (210) of an initial aqueous solution comprising ions of Na, K, Cl and optionally Ca or a material which when brought in contact with water forms an initial aqueous solution comprising ions of Na, K, Cl and optionally Ca. The start material is treated (230) into an enriched aqueous solution having a concentration of CaCl2 of at least 15% by weight. The treatment (230) comprises at least one of reduction of water content and addition of Ca. The treatment (230) generates a solid mix of Na Cl and KCl. The solid mix of NaCl and KCl is separated (235) from the enriched aqueous solution, giving a depleted aqueous solution comprising ions of Ca and Cl as main dissolved substances. An arrangement for recovery of salts is also disclosed.
(FR) La présente invention concerne un procédé de récupération des sels qui consiste à fournir (210) une solution aqueuse initiale comprenant des ions de Na, K, Cl et éventuellement Ca ou un matériau qui, lorsqu'il est mis en contact de l'eau, forme une solution aqueuse initiale comprenant des ions de Na, K, Cl et éventuellement Ca. Le matériau de départ est traité (230) dans une solution aqueuse enrichie ayant une concentration en CaCl2 d'au moins 15 % en poids. Le traitement (230) comprend la réduction de la teneur en eau et/ou l'ajout de Ca. Le traitement (230) produit un mélange solide de NaCl et de KCl. Le mélange solide de NaCl et de KCl est séparé (235) de la solution aqueuse enrichie, ce qui donne une solution aqueuse appauvrie comprenant des ions de Ca et Cl comme principaux composants dissous. L'invention concerne également un agencement de récupération de sels.
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