Process of dewatering a composition including combining a first portion of the composition with a salt and a polymer flocculant to form a treated composition stream that includes a consolidated material in process water; and separating the process water from the consolidated material. The composition includes a metal ore that includes metal particles having a particle size of equal to or less than 11 µm. The salt includes an inorganic salt. A concentration of the salt in the treated composition stream is 0.01 to 5 wt%, or 0.1 to 5 wt%, or 0.1 wt% to 3 wt%. A concentration of the polymer flocculant in the treated composition stream is not less than zero and up to 0.6 wt%, 0.01 to 0.6 wt%, or 0.05 to 0.5 wt%, or 0.1 to 0.6 wt%, or 0.1 to 0.4 wt%. The consolidated material includes the metal particles.
A process of leaching a metal, such as gold, from a feed source includes combining the feed source with a salt (such as a chloride salt) and/or a leaching reagent, such as a 3% solution to a 35% solution of sodium dichloro-s-triazinetrione dihydrate or a 3% solution to a 35% solution of anhydrous sodium dichloro-s-triazinetrione or a 3% solution to a 35% solution of trichloro-s-triazinetrione or a 3% solution to a 35% solution of calcium hypochlorite in a leach medium to form a feed slurry, and leaching a metal from the feed slurry to form a pregnant leach liquor followed by recovering the metal from the pregnant leach liquor and recycling residual leach solution to form additional feed slurry. The process is cyanide-free and/or arsenic free.
C22B 3/04 - Extraction de composés métalliques par voie humide à partir de minerais ou de concentrés par lixiviation
C22B 3/06 - Extraction de composés métalliques par voie humide à partir de minerais ou de concentrés par lixiviation dans des solutions inorganiques acides
A process of leaching precious metal from a feed source in a multi-step process contacts comminuted ore with a diluted solution of a chloride source and soaks for at least 10 minutes; adds a second source of chloride to the solution, preferably by dissolution of a chloride source, for a contact time of at least 1 hour; adds a reducing agent, preferably an acid source such as HCl, to initiate a leaching process; holds for a contact time of at least 1 hour, preferably between 1 to 24 hours; adds an indifferent salt to complete the leaching process; and recovers a metal. The process is optionally cyanide and arsenic free. Such processes are suitable for large scale operations with high solids loading in the liquid-solids separation operations.
Processes of consolidating tailings such as from metal and non-metal based ore processes are disclosed. The processes include mixing tailings with a high concentration of a highly water soluble salt or an aqueous solution thereof to destabilize and consolidate solids in the tailings and separating the consolidated solids from process water.
C02F 11/143 - Traitement des boues d'égoutDispositifs à cet effet par déshydratation, séchage ou épaississement avec addition de produits chimiques utilisant des substances inorganiques
C02F 11/148 - Utilisation combinée de substances inorganiques et organiques additionnées lors de la même étape de traitement
C02F 103/10 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de carrières ou d'activités minières
5.
IMPROVED FLOTATION AND SOLID-LIQUID SEPARATION OF TAILINGS
A process of flotation of partially or fully liberated metal-bearing or industrial minerals, hydrocarbon matter, oil or bitumen from an ore includes combining an indifferent salt to a flotation system to increase efficiency of the flotation process as well as the subsequent flotation concentrate and tailings solid-liquid separation.
B03D 1/08 - Traitement ultérieur du produit concentré
B03B 9/02 - Disposition générale d'un atelier de séparation, p. ex. schéma opératoire spécialement adapté aux séparations pétrole/sable, pétrole/craie, pétrole/schistes, ozokérite, bitume ou similaires
A process of leaching a metal or salt thereof from a feed source includes combining an indifferent salt to a leach system to increase efficiency of the leach process as well as the subsequent leach residue liquid-solids separation. The process can include combining the feed source with a leaching reagent and an indifferent salt in a leach medium to form a feed slurry and leaching a metal or metal salt from the feed slurry in to a pregnant leach liquor followed by recovering metal salts from the pregnant leach liquor and recycling residual leach solution to form additional feed slurry. Such processes are suitable for large scale operations with high solids loading in the liquid-solids separation operations.
C22B 3/04 - Extraction de composés métalliques par voie humide à partir de minerais ou de concentrés par lixiviation
C22B 3/22 - Traitement ou purification de solutions, p. ex. de solutions obtenues par lixiviation par des procédés physiques, p. ex. par filtration, par des moyens magnétiques
Processes of thickening slurries such as from metal and non-metal based ore processes are disclosed. The processes include treating a feed slurry in a thickener apparatus with an indifferent salt in sufficient quantity to increase efficiency of solids-liquid separation as compared to a feed slurry in the thickener apparatus without the added indifferent salt.
−) in the treated saline water. The treated saline water can be used in an operation to extract minerals from ore such as in a flotation operation to extract minerals from ore, or to consolidate tailings generated from an extraction of minerals from ore, or both.
C02F 11/131 - Traitement des boues d'égoutDispositifs à cet effet par déshydratation, séchage ou épaississement par chauffage à l’aide d’ondes électromagnétiques ou d’ultrasons
A process of flotation of partially or fully liberated metal-bearing or industrial minerals, hydrocarbon matter, oil or bitumen from an ore includes combining an indifferent salt to a flotation system to increase efficiency of the flotation process as well as the subsequent flotation concentrate and tailings solid-liquid separation.
A process of leaching a metal or salt thereof from a feed source includes combining an indifferent salt to a leach system to increase efficiency of the leach process as well as the subsequent leach residue liquid-solids separation. The process can include combining the feed source with a leaching reagent and an indifferent salt in a leach medium to form a feed slurry and leaching a metal or metal salt from the feed slurry in to a pregnant leach liquor followed by recovering metal salts from the pregnant leach liquor and recycling residual leach solution to form additional feed slurry. Such processes are suitable for large scale operations with high solids loading in the liquid-solids separation operations.
C22B 3/06 - Extraction de composés métalliques par voie humide à partir de minerais ou de concentrés par lixiviation dans des solutions inorganiques acides
C22B 3/22 - Traitement ou purification de solutions, p. ex. de solutions obtenues par lixiviation par des procédés physiques, p. ex. par filtration, par des moyens magnétiques
A process of leaching a metal or salt thereof from a feed source includes combining an indifferent salt to a leach system to increase efficiency of the leach process as well as the subsequent leach residue liquid-solids separation. The process can include combining the feed source with a leaching reagent and an indifferent salt in a leach medium to form a feed slurry and leaching a metal or metal salt from the feed slurry in to a pregnant leach liquor followed by recovering metal salts from the pregnant leach liquor and recycling residual leach solution to form additional feed slurry. Such processes are suitable for large scale operations with high solids loading in the liquid-solids separation operations.
C22B 3/06 - Extraction de composés métalliques par voie humide à partir de minerais ou de concentrés par lixiviation dans des solutions inorganiques acides
C22B 3/22 - Traitement ou purification de solutions, p. ex. de solutions obtenues par lixiviation par des procédés physiques, p. ex. par filtration, par des moyens magnétiques
Processes of thickening slurries such as from metal and non-metal based ore processes are disclosed. The processes include treating a feed slurry in a thickener apparatus with an indifferent salt in sufficient quantity to increase efficiency of solids-liquid separation as compared to a feed slurry in the thickener apparatus without the added indifferent salt.
Processes of thickening slurries such as from metal and non-metal based ore processes are disclosed. The processes include treating a feed slurry in a thickener apparatus with an indifferent salt in sufficient quantity to increase efficiency of solids-liquid separation as compared to a feed slurry in the thickener apparatus without the added indifferent salt.
Processes of extracting mineral deposits in ore include treating a saline source, e.g., seawater, to reduce a concentration of one or more multivalent ions (e.g., Ca2+, Mg2+, SO42−) dissolved in the saline source by passing the seawater through one or more nanofilters to produce treated saline water while maintain a certain concentration of dissolved monovalent ions (e.g., (Na+, K+ and Cl−) in the treated saline water. The treated saline water can be used in an operation to extract minerals from ore such as in a flotation operation to extract minerals from ore, or to consolidate tailings generated from an extraction of minerals from ore, or both.
Processes of extracting mineral deposits in ore include treating a saline source, e.g., seawater, to reduce a concentration of one or more multivalent ions (e.g., Ca2+, Mg2+44 2–) dissolved in the saline source by passing the seawater through one or more nanofilters to produce treated saline water while maintain a certain concentration of dissolved monovalent ions (e.g., (Na+, K+and C1-) in the treated saline water. The treated saline water can be used in an operation to extract minerals from ore such as in a flotation operation to extract minerals from ore, or to consolidate tailings generated from an extraction of minerals from ore, or both.
G06Q 10/06 - Ressources, gestion de tâches, des ressources humaines ou de projetsPlanification d’entreprise ou d’organisationModélisation d’entreprise ou d’organisation
Processes of extracting mineral deposits in ore include treating a saline source, e.g., seawater, to reduce a concentration of one or more multivalent ions (e.g., Ca2+, Mg2+, SO4 2?) dissolved in the saline source by passing the seawater through one or more nanofilters to produce treated saline water while maintain a certain concentration of dissolved monovalent ions (e.g., (Na+, K+ and C1-) in the treated saline water. The treated saline water can be used in an operation to extract minerals from ore such as in a flotation operation to extract minerals from ore, or to consolidate tailings generated from an extraction of minerals from ore, or both.
A process for dewatering oil sands tailings can include mixing a stream of process water from oil sands tailings with an indifferent salt and polymer flocculant to form a functional processing solution and then mixing the functional processing solution with a solids suspension stream from oil sands tailings and optionally coarse particles. The mixture forms a treated slurry stream having consolidated solids and clarified water, which can be separated from the consolidated solids. The clarified water optionally can be treated with carbonaceous material to remove organic impurities and, in addition, or alternatively, the clarified water can be treated to concentrate the indifferent salt dissolved therein used to form additional functional processing solution.
B01D 21/01 - Séparation par sédimentation de particules solides en suspension dans des liquides en utilisant des agents de floculation
B03B 9/02 - Disposition générale d'un atelier de séparation, p. ex. schéma opératoire spécialement adapté aux séparations pétrole/sable, pétrole/craie, pétrole/schistes, ozokérite, bitume ou similaires
C10G 1/04 - Production de mélanges liquides d'hydrocarbures à partir de schiste bitumineux, de sable pétrolifère ou de matières carbonées solides non fusibles ou similaires, p. ex. bois, charbon par extraction
Processes of extracting mineral deposits in ore include treating a saline source, e.g., seawater, to reduce a concentration of one or more multivalent ions (e.g., Ca2+, Mg2+, SO4 2) dissolved in the saline source by passing the seawater through one or more nanofilters to produce treated saline water while maintain a certain concentration of dissolved monovalent ions (e.g., (Na+, K+ and C1) in the treated saline water. The treated saline water can be used in an operation to extract minerals from ore such as in a flotation operation to extract minerals from ore, or to consolidate tailings generated from an extraction of minerals from ore, or both.
B03B 7/00 - Combinaisons de procédés ou d'appareils opérant par voie humide, avec d'autres procédés ou appareils, p. ex. pour la préparation des minerais ou cendres
B07B 15/00 - Combinaisons d'appareils à séparer les solides par voie sèche, applicables aux matériaux en vrac, p. ex. aux objets manipulés en vrac
E21C 41/22 - Procédés d'exploitation minière souterraineTracés à cet effet pour les minerais métallifères, p. ex. exploitation des placers
Processes of extracting mineral deposits in ore include treating a saline source, e.g., seawater, to reduce a concentration of one or more multivalent ions (e.g., Ca2+, Mg2+44 2–) dissolved in the saline source by passing the seawater through one or more nanofilters to produce treated saline water while maintain a certain concentration of dissolved monovalent ions (e.g., (Na+, K+and C1–) in the treated saline water. The treated saline water can be used in an operation to extract minerals from ore such as in a flotation operation to extract minerals from ore, or to consolidate tailings generated from an extraction of minerals from ore, or both.
E21C 41/22 - Procédés d'exploitation minière souterraineTracés à cet effet pour les minerais métallifères, p. ex. exploitation des placers
B03B 7/00 - Combinaisons de procédés ou d'appareils opérant par voie humide, avec d'autres procédés ou appareils, p. ex. pour la préparation des minerais ou cendres
B07B 15/00 - Combinaisons d'appareils à séparer les solides par voie sèche, applicables aux matériaux en vrac, p. ex. aux objets manipulés en vrac
Processes of consolidating tailings such as from metal and non-metal based ore processes are disclosed. The processes include mixing tailings with a high concentration of a highly water soluble salt or an aqueous solution thereof to destabilize and consolidate solids in the tailings and separating the consolidated solids from process water.
C02F 1/68 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par addition de substances spécifiées, pour améliorer l'eau potable, p. ex. par addition d'oligo-éléments
Processes of consolidating tailings such as from metal and non-metal based ore processes are disclosed. The processes include mixing tailings with a high concentration of a highly water soluble salt or an aqueous solution thereof to destabilize and consolidate solids in the tailings and separating the consolidated solids from process water.
C02F 1/68 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par addition de substances spécifiées, pour améliorer l'eau potable, p. ex. par addition d'oligo-éléments
Processes of consolidating tailings such as from metal and non-metal based ore processes are disclosed. The processes include mixing tailings with a high concentration of a highly water soluble salt or an aqueous solution thereof to destabilize and consolidate solids in the tailings and separating the consolidated solids from process water.
C02F 1/52 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par floculation ou précipitation d'impuretés en suspension
C02F 11/143 - Traitement des boues d'égoutDispositifs à cet effet par déshydratation, séchage ou épaississement avec addition de produits chimiques utilisant des substances inorganiques
C02F 11/148 - Utilisation combinée de substances inorganiques et organiques additionnées lors de la même étape de traitement
C02F 103/10 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de carrières ou d'activités minières
23.
EXTRACTION OF HYDROCARBONS FROM PARTICULATE MATTER
Separating hydrocarbon from compositions includ- ing hydrocarbon and solids such as oil sands, oil sands by products, asphalt compositions, etc. includes treating such compositions with an aqueous mixture including a highly water soluble salt. The mix- ture can optionally also include polymer flocculant and/or organic diluent. The hydrocarbon separated can be in high yields and with a low solid fines content.
B01D 21/01 - Séparation par sédimentation de particules solides en suspension dans des liquides en utilisant des agents de floculation
B03B 9/02 - Disposition générale d'un atelier de séparation, p. ex. schéma opératoire spécialement adapté aux séparations pétrole/sable, pétrole/craie, pétrole/schistes, ozokérite, bitume ou similaires
C10G 1/04 - Production de mélanges liquides d'hydrocarbures à partir de schiste bitumineux, de sable pétrolifère ou de matières carbonées solides non fusibles ou similaires, p. ex. bois, charbon par extraction
Separating hydrocarbon from compositions including hydrocarbon and solids such as oil sands, oil sands by products, asphalt compositions, etc. includes treating such compositions with an aqueous mixture including a highly water soluble salt. The mixture can optionally also include polymer flocculant and/or organic diluent. The hydrocarbon separated can be in high yields and with a low solid fines content.
B01D 21/01 - Séparation par sédimentation de particules solides en suspension dans des liquides en utilisant des agents de floculation
B03B 9/02 - Disposition générale d'un atelier de séparation, p. ex. schéma opératoire spécialement adapté aux séparations pétrole/sable, pétrole/craie, pétrole/schistes, ozokérite, bitume ou similaires
C10G 1/04 - Production de mélanges liquides d'hydrocarbures à partir de schiste bitumineux, de sable pétrolifère ou de matières carbonées solides non fusibles ou similaires, p. ex. bois, charbon par extraction
Processes of consolidating oil sands tailings which includes fines and process water are disclosed. The processes include mixing the oil sands tailings with a highly water soluble salt or an aqueous solution thereof to destabilize and consolidate solids in the tailings, e.g., to destabilize and consolidate fines in the tailings and separating the consolidated solids from the process water. A water soluble polymer flocculant and coarse particles, e.g., sand, can also be used in the treatment of oil sands tailings.
C02F 1/52 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par floculation ou précipitation d'impuretés en suspension
C02F 1/68 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par addition de substances spécifiées, pour améliorer l'eau potable, p. ex. par addition d'oligo-éléments
C02F 11/148 - Utilisation combinée de substances inorganiques et organiques additionnées lors de la même étape de traitement
C02F 103/10 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de carrières ou d'activités minières
Processes of consolidating aqueous coal waste compositions including solids and process water are disclosed. The processes include mixing the composition with a highly water soluble salt or an aqueous solution thereof to destabilize and consolidate solids in the compositions and separating the consolidated solids from the process water. A water soluble polymer and coarse particles, e.g., sand, can also be used in the treatment of the compositions.
Processes of consolidating phosphate tailings, which include solids and process water, from phosphate mining and extraction operations are disclosed. The processes include mixing the tailings with a highly water soluble salt or an aqueous solution thereof to destabilize and consolidate solids in the tailings and separating the consolidated solids from the process water. A water soluble polymer and coarse particles, e.g., sand, can also be used in the treatment of the phosphate tailings.
B03B 7/00 - Combinaisons de procédés ou d'appareils opérant par voie humide, avec d'autres procédés ou appareils, p. ex. pour la préparation des minerais ou cendres
B03B 9/00 - Disposition générale d'un atelier de séparation, p. ex. schéma opératoire
B03B 11/00 - Dispositifs d'alimentation ou d'évacuation intégrés dans un matériel de lavage ou de séparation par voie humide
Processes of treating drill cuttings which include solids and drilling fluid to consolidate solids and/or separate drilling fluid and/or hydrocarbon are disclosed. The processes include mixing drill cuttings with a highly water soluble salt or an aqueous solution thereof to destabilize and consolidate solids in the cuttings. The process can also include treating the drill cuttings with a diluent to separate and recover hydrocarbon associated with the drill cuttings.
Processes of consolidating bitumen froth tailings which includes fines and process water are disclosed. The processes include mixing the bitumen froth tailings with a highly water soluble salt or an aqueous solution thereof to destabilize and consolidate solids in the tailings, e.g., to destabilize and consolidate fines in the tailings and separating the consolidated solids from the process water. A water soluble polymer flocculant and coarse particles, e.g., sand, can also be used in the treatment of bitumen froth tailings. Residual hydrocarbons in the bitumen froth tailings can optionally be recovered.
C02F 11/14 - Traitement des boues d'égoutDispositifs à cet effet par déshydratation, séchage ou épaississement avec addition de produits chimiques
C02F 11/148 - Utilisation combinée de substances inorganiques et organiques additionnées lors de la même étape de traitement
C10G 1/04 - Production de mélanges liquides d'hydrocarbures à partir de schiste bitumineux, de sable pétrolifère ou de matières carbonées solides non fusibles ou similaires, p. ex. bois, charbon par extraction
Processes of consolidating oil sands tailings which includes fines and process water are disclosed. The processes include mixing the oil sands tailings with a highly water soluble salt or an aqueous solution thereof to destabilize and consolidate solids in the tailings, e.g., to destabilize and consolidate fines in the tailings and separating the consolidated solids from the process water. A water soluble polymer flocculant and coarse particles, e.g., sand, can also be used in the treatment of oil sands tailings.
C02F 1/68 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par addition de substances spécifiées, pour améliorer l'eau potable, p. ex. par addition d'oligo-éléments
C02F 11/12 - Traitement des boues d'égoutDispositifs à cet effet par déshydratation, séchage ou épaississement
C02F 103/10 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de carrières ou d'activités minières
Processes of consolidating oil sands tailings which includes fines and process water are disclosed. The processes include mixing the oil sands tailings with a highly water soluble salt or an aqueous solution thereof to destabilize and consolidate solids in the tailings, e.g., to destabilize and consolidate fines in the tailings and separating the consolidated solids from the process water. A water soluble polymer flocculant and coarse particles, e.g., sand, can also be used in the treatment of oil sands tailings.
C02F 1/68 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par addition de substances spécifiées, pour améliorer l'eau potable, p. ex. par addition d'oligo-éléments
C02F 11/12 - Traitement des boues d'égoutDispositifs à cet effet par déshydratation, séchage ou épaississement
Processes of consolidating aqueous compositions including fines and process water are disclosed. The processes include mixing the composition with a highly water soluble salt or an aqueous solution thereof to destabilize and consolidate solids in the compositions, e.g., to destabilize and consolidate fines, and separating the consolidated solids from the process water. A water soluble polymer and coarse particles, e.g., sand, can also be used in the treatment of the compositions.
Processes of consolidating aqueous compositions including fines and process water are disclosed. The processes include mixing the composition with a highly water soluble salt or an aqueous solution thereof to destabilize and consolidate solids in the compositions, e.g., to destabilize and consolidate fines, and separating the consolidated solids from the process water. A water soluble polymer and coarse particles, e.g., sand, can also be used in the treatment of the compositions.
Separating hydrocarbon from compositions including hydrocarbon and solids such as oil sands, oil sands by products, asphalt compositions, etc. includes treating such compositions with a mixture including a water soluble salt, polymer flocculent and organic diluent. The hydrocarbon separated can be in high yields and with a low solid fines content.
C10G 1/04 - Production de mélanges liquides d'hydrocarbures à partir de schiste bitumineux, de sable pétrolifère ou de matières carbonées solides non fusibles ou similaires, p. ex. bois, charbon par extraction
35.
SEPARATION OF HYDROCARBONS FROM PARTICULATE MATTER USING SALT AND POLYMER
Separating hydrocarbon from compositions including hydrocarbon and solids such as oil sands, oil sands by products, asphalt compositions, etc. includes treating such compositions with a mixture including a water soluble salt. The mixture can optionally also include polymer flocculent and/or organic diluent. The hydrocarbon separated can be in high yields and with a low solid fines content.
C10C 3/02 - Traitement du brai, de l'asphalte, du bitume par des moyens chimiques
C10G 1/00 - Production de mélanges liquides d'hydrocarbures à partir de schiste bitumineux, de sable pétrolifère ou de matières carbonées solides non fusibles ou similaires, p. ex. bois, charbon
Separating hydrocarbon from compositions including hydrocarbon and solids such as oil sands, oil sands by products, asphalt compositions, etc. includes treating such compositions with a mixture including a water soluble salt. The mixture can optionally also include polymer flocculent and/or organic diluent. The hydrocarbon separated can be in high yields and with a low solid fines content.
C10G 1/00 - Production de mélanges liquides d'hydrocarbures à partir de schiste bitumineux, de sable pétrolifère ou de matières carbonées solides non fusibles ou similaires, p. ex. bois, charbon
Processes of consolidating oil sands tailings which includes fines and process water are disclosed. The processes include mixing the oil sands tailings with a highly water soluble salt or an aqueous solution thereof to destabilize and consolidate solids in the tailings, e.g., to destabilize and consolidate fines in the tailings and separating the consolidated solids from the process water. A water soluble polymer and coarse particles, e.g., sand, can also be used in the treatment of oil sands tailings.
Processes of consolidating oil sands tailings which includes fines and process water are disclosed. The processes include mixing the oil sands tailings with a highly water soluble salt or an aqueous solution thereof to destabilize and consolidate solids in the tailings, e.g., to destabilize and consolidate fines in the tailings and separating the consolidated solids from the process water. A water soluble polymer and coarse particles, e.g., sand, can also be used in the treatment of oil sands tailings.
C02F 1/68 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par addition de substances spécifiées, pour améliorer l'eau potable, p. ex. par addition d'oligo-éléments
C02F 11/121 - Traitement des boues d'égoutDispositifs à cet effet par déshydratation, séchage ou épaississement par déshydratation mécanique
C02F 103/10 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de carrières ou d'activités minières
Processes of consolidating oil sands tailings which includes fines and process water are disclosed. The processes include mixing the oil sands tailings with a highly water soluble salt or an aqueous solution thereof to destabilize and consolidate solids in the tailings, e.g., to destabilize and consolidate fines in the tailings and separating the consolidated solids from the process water. A water soluble polymer and coarse particles, e.g., sand, can also be used in the treatment of oil sands tailings.
C02F 9/02 - Traitement en plusieurs étapes de l'eau, des eaux résiduaires ou des eaux d'égout comportant une étape de séparation
C02F 9/04 - Traitement en plusieurs étapes de l'eau, des eaux résiduaires ou des eaux d'égout une étape au moins étant un traitement chimique
C09K 8/58 - Compositions pour les méthodes de récupération assistée pour l'extraction d'hydrocarbures, c.-à-d. pour améliorer la mobilité de l'huile, p. ex. fluides de déplacement
E21B 43/40 - Séparation associée à la réinjection de matériaux séparés
Processes of consolidating oil sands tailings which includes fines and process water are disclosed. The processes include mixing the oil sands tailings with a highly water soluble salt or an aqueous solution thereof to destabilize and consolidate solids in the tailings, e.g., to destabilize and consolidate fines in the tailings and separating the consolidated solids from the process water. A water soluble polymer and coarse particles, e.g., sand, can also be used in the treatment of oil sands tailings.
B01D 21/01 - Séparation par sédimentation de particules solides en suspension dans des liquides en utilisant des agents de floculation
B03B 9/02 - Disposition générale d'un atelier de séparation, p. ex. schéma opératoire spécialement adapté aux séparations pétrole/sable, pétrole/craie, pétrole/schistes, ozokérite, bitume ou similaires
brevets
