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公开(公告)号：US20250146102A1
公开(公告)日：2025-05-08
申请号：US18833533
申请日：2023-01-31
Applicant: BASF SE
Inventor： Wolfgang Rohde , Nils-Olof Joachim Born , Marc Duchardt , Vincent Smith , Fabian Seeler , Anne-Marie Caroline Zieschang
Abstract: Disclosed are methods for leaching a material comprising copper in a zero oxidation state, wherein the method comprises contacting the material with an acidic aqueous solution having a pH less than 6 to form a leaching mixture, and oxidizing the copper with an oxidizing agent of formula LipMqM′rOs. M comprises one or more metals chosen from nickel, manganese, and cobalt, M′ comprises one or more metals chosen from Mg, Ca, Ba, Al, Ti, Zr, Zn, Fe, V, Mo, and W; p ranges from 1 to 1.4; q ranges from 0.6 to 2; r ranges from 0 to 1; s ranges from 2 to 4; and a total amount of copper present in the material before leaching in moles divided by a total amount of the oxidizing agent in moles, mols(Cu)/moIs(OA), ranges from n(eM)/8 to 2 n(eM); n(eM)_=2(s-q)-p-r⋅oxm′ and OxM′ is the average oxidation number of M′ determined by calculating the molar average of the most stable oxidation number for each metal, as an oxide, comprised by M′.
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公开(公告)号：US20250034676A1
公开(公告)日：2025-01-30
申请号：US18717133
申请日：2022-12-06
Applicant: BASF SE
Inventor： Vincent Smith , Till Gerlach , Bernard Muller , Wolfgang Rohde , Nils-Olof Joachim Born , Kerstin Schierle-Arndt , Mark Jablonka , Alex Syrma
Abstract: Disclosed herein are methods for leaching a material comprising one or more metals in a zero oxidation state and one or more chosen from metal oxides, metal hydroxides, and combinations thereof, wherein the method comprises contacting the material with an oxidizing acidic aqueous solution having a pH less than 6, and subsequently reducing the one or more chosen from metal oxides, metal hydroxides, and combinations thereof with a reducing agent. Also disclosed are methods comprising leaching a material to obtain an aqueous solution comprising metal ions, and separating the metal ions to obtain at least one essentially pure metal ion solution and/or at least one essentially pure solid metal ion salt. Further disclosed are methods comprising mechanically comminuting a material to obtain a black mass, and leaching the black mass.
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公开(公告)号：US20240360001A1
公开(公告)日：2024-10-31
申请号：US18291277
申请日：2022-07-28
Applicant: BASF SE
Inventor： Stefan Pichlmair , Ralf Boehling , Sabine Frischhut , Vincent Smith
IPC: C01G53/10
CPC classification number: C01G53/10
Abstract: The present disclosure is directed to processes and systems for dissolving elemental nickel in sulfuric acid solutions to produce nickel sulfate products, and for example. nickel sulfate products suitable for battery materials production.
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公开(公告)号：US20250003099A1
公开(公告)日：2025-01-02
申请号：US18576396
申请日：2022-07-07
Applicant: BASF SE
Inventor： Nils-Olof Joachim Born , Arnd Garsuch , Kerstin Schierle-Arndt , Wolfram Wilk , Sigmar Braeuninger , Regina Vogelsang , Bastian Opitz , Daniel Malko , Vincent Smith
Abstract: Disclosed herein are processes comprising electrolyzing an aqueous solution comprising lithium, wherein the aqueous solution has a pH less than 0.5. Also disclosed are processes comprising electrolyzing a first aqueous solution comprising lithium to obtain a second aqueous solution comprising lithium, and an acidic aqueous solution having a pH less than 0.5, adjusting the pH of the second aqueous solution with the acidic aqueous solution to obtain a third aqueous solution comprising lithium having a pH less than 0.5, and electrolyzing the third aqueous solution comprising lithium. Additionally disclosed are, processes comprising stripping a liquid medium comprising lithium with an acidic aqueous solution to obtain an aqueous solution comprising lithium, and electrolyzing the aqueous solution comprising lithium. Further disclosed are processes for preparing a liquid medium comprising lithium.
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