Abrégé

A process for water removal and/or recycling of sodium sulphate and/or sodium dithionate containing liquors derived from processing a cobalt resource derived from components of lithium ion batteries comprising steps of deriving from the cobalt resource a solution containing cobalt sulphate and cobalt dithionate, precipitation of cobalt as cobaltous carbonate or cobaltous hydroxide followed by removal thereof from the liquor, crystallization of sodium sulphate and sodium dithionate and removal of resulting crystals, followed by heating of the crystals to anhydrous sodium sulphate, sulphur dioxide and water and then separating the anhydrous sodium sulphate.

Classes IPC  ?

• H01M 10/54 - Récupération des parties utiles des accumulateurs usagés
• H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p. ex. batteries à insertion ou intercalation de lithium dans les deux électrodesBatteries à l'ion lithium
• C01G 51/04 - Oxydes
• C01G 51/06 - Carbonates
• C01G 45/00 - Composés du manganèse
• C01G 45/02 - Oxydes
• C01G 53/06 - Carbonates
• C01G 53/04 - Oxydes
• C01D 15/08 - CarbonatesBicarbonates
• C22B 7/00 - Mise en œuvre de matériaux autres que des minerais, p. ex. des rognures, pour produire des métaux non ferreux ou leurs composés
• C22B 3/00 - Extraction de composés métalliques par voie humide à partir de minerais ou de concentrés
• C22B 47/00 - Obtention du manganèse
• C22B 26/12 - Obtention du lithium

Abrégé

) )42Abstract A process for water removal and/or recycling of sodium sulphate and/or sodium dithionate containing liquors derived from processing a cobalt resource derived from components of lithium ion batteries comprising steps of deriving from the cobalt resource a solution containing cobalt sulphate and cobalt dithionate, precipitation of cobalt as cobaltous carbonate or cobaltous hydroxide followed by removal thereof from the liquor, crystallization of sodium sulphate and sodium dithionate and removal of the resulting crystals, followed by heating of the crystals to anhydrous sodium sulphate, sulphur dioxide and water and then separating the anhydrous sodium sulphate..=.=.=Date Recue/Date Received 2021-09-13 =

Classes IPC  ?

• C22B 3/08 - Acide sulfurique
• C22B 3/44 - Traitement ou purification de solutions, p. ex. de solutions obtenues par lixiviation par des procédés chimiques
• C22B 7/00 - Mise en œuvre de matériaux autres que des minerais, p. ex. des rognures, pour produire des métaux non ferreux ou leurs composés
• C22B 23/00 - Obtention du nickel ou du cobalt
• H01M 10/54 - Récupération des parties utiles des accumulateurs usagés

Abrégé

A process for water removal and/or recycling of sodium sulphate and/or sodium dithionate containing liquors derived from processing a cobalt resource derived from components of lithium ion batteries comprising steps of deriving from the cobalt resource a solution containing cobalt sulphate and cobalt dithionate, precipitation of cobalt as cobaltous carbonate or cobaltous hydroxide followed by removal thereof from the liquor, crystallization of sodium sulphate and sodium dithionate and removal of the resulting crystals, followed by heating of the crystals to anhydrous sodium sulphate, sulphur dioxide and water and then separating the anhydrous sodium sulphate.

Classes IPC  ?

• C01G 51/06 - Carbonates
• C01B 17/64 - ThiosulfatesDithionitesPolythionates
• C01G 45/02 - Oxydes
• C01G 45/00 - Composés du manganèse
• C01F 7/02 - Oxyde d'aluminiumHydroxyde d'aluminiumAluminates
• C01F 7/00 - Composés de l'aluminium
• H01M 10/052 - Accumulateurs au lithium
• C01G 53/06 - Carbonates
• C01G 53/04 - Oxydes

Abrégé

A process for water removal and/or recycling of sodium sulfate and/or sodium dithionate containing liquors derived from processing cobalt resource material essentially free of lithium comprising the steps of precipitation of cobalt as cobaltous carbonate or cobaltous hydroxide followed by removal thereof from the liquor, crystallization of sodium sulfate and sodium dithionate and removal of the crystals, followed by heating of the crystals to anhydrous sodium sulfate, sulphur dioxide and water and then separating the anhydrous sodium sulfate.

Classes IPC  ?

• C01G 51/06 - Carbonates
• C01B 17/64 - ThiosulfatesDithionitesPolythionates
• C01G 51/04 - Oxydes
• C01G 51/00 - Composés du cobalt
• C01G 53/00 - Composés du nickel
• C01D 5/00 - Sulfates ou sulfites de sodium, de potassium ou des métaux alcalins en général
• C01D 5/18 - Déshydratation
• C01D 15/08 - CarbonatesBicarbonates
• C02F 103/34 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de l'industrie chimique non prévue dans les groupes
• H01M 4/02 - Électrodes composées d'un ou comprenant un matériau actif
• H01M 10/052 - Accumulateurs au lithium

Abrégé

A process for water removal and/or recycling of sodium sulfate and/or sodium dithionate containing liquors derived from processing cobalt resource material essentially free of lithium comprising the steps of precipitation of cobalt as cobaltous carbonate or cobaltous hydroxide followed by removal thereof from the liquor, crystallization of sodium sulfate and sodium dithionate and removal of the crystals, followed by heating of the crystals to anhydrous sodium sulfate, sulphur dioxide and water and then separating the anhydrous sodium sulfate.

Classes IPC  ?

• C01D 5/18 - Déshydratation
• C01D 15/02 - OxydesHydroxydes
• C01D 15/08 - CarbonatesBicarbonates
• C22B 23/00 - Obtention du nickel ou du cobalt
• C22B 23/06 - Affinage
• C22B 26/12 - Obtention du lithium

Abrégé

A process for water removal and/or recycling of sodium sulfate and/or sodium dithionate containing liquors derived from processing cobalt resource material essentially free of lithium comprising the steps of precipitation of cobalt as cobaltous carbonate or cobaltous hydroxide followed by removal thereof from the liquor, crystallization of sodium sulfate and sodium dithionate and removal of the crystals, followed by heating of the crystals to anhydrous sodium sulfate, sulphur dioxide and water and then separating the anhydrous sodium sulfate.

Classes IPC  ?

• C01D 5/18 - Déshydratation
• C01D 15/02 - OxydesHydroxydes
• C01D 15/08 - CarbonatesBicarbonates
• C22B 23/00 - Obtention du nickel ou du cobalt
• C22B 23/06 - Affinage
• C22B 26/12 - Obtention du lithium