PROCESS FOR PRECIPITATING A MIXED CARBONATE OR MIXED (OXY)HYDROXIDE

    公开(公告)号:WO2021063624A1

    公开(公告)日:2021-04-08

    申请号:PCT/EP2020/074623

    申请日:2020-09-03

    Applicant: BASF SE

    Abstract: Process for precipitating a mixed carbonate or mixed (oxy)hydroxide comprising nickel from an aqueous solution comprising a nickel salt, wherein such process is carried out in a vessel comprising (A) a vessel body, (B) one or more elements selected from draft tubes and guide vanes, (C) at least one stirrer whose pressure zone is in or between element(s) (B),and wherein the process comprises the step of simultaneously adding said solution comprising a nickel salt in or between element(s) (B) and a solution of alkali metal carbonate or hydroxide in or between or outside element(s) (B).

    PROCESS FOR PRECIPITATING A MIXED HYDROXIDE
    2.
    发明申请

    公开(公告)号:WO2022033924A1

    公开(公告)日:2022-02-17

    申请号:PCT/EP2021/071654

    申请日:2021-08-03

    Applicant: BASF SE

    Abstract: Process for precipitating a mixed hydroxide of TM wherein TM comprises Ni and at least one of Co and Mn and, optionally, Al, Mg, Zr or Ti from an aqueous solution of salts of such transition metals or of Al or of Mg, wherein such process is carried out in a stirred vessel and comprises the step of introducing a 10 to 40% by weight aqueous solution of ammonia and an aqueous solution of transition metal salts through at least two inlets into said stirred vessel wherein the distance of the locations of introduction of TM and of ammonia is equal or less than 12 times the hydraulic diameter of the tip of the inlet of the ammonia, and wherein an aqueous solution ofalkali metal hydroxide is added separately from the at least two inlets.

    METHOD FOR MAKING PRECURSORS OF CATHODE ACTIVE MATERIALS FOR LITHIUM ION BATTERIES

    公开(公告)号:WO2023046508A1

    公开(公告)日:2023-03-30

    申请号:PCT/EP2022/075233

    申请日:2022-09-12

    Applicant: BASF SE

    Abstract: Process for making a particulate (oxy)hydroxide of TM wherein TM represents metals, and wherein TM comprises nickel and at least one metal selected from cobalt and aluminum and manganese, wherein said process comprises the steps of:(a) combining an aqueous slurry of metallic nickel and at least one metal selected from cobalt and manganese and aluminum with an oxidant selected from nitrate and peroxide in a re-action vessel under an atmosphere with less than 100 ppm O2, thereby obtaining an aqueous reaction medium with a pH value in the range of from 7.5 to 12 containing parti-cles,(b) removing the particles from step (a) from the liquid by a solid-liquid separation method, and drying the particles, and (c) returning mother liquor obtained in step (b) to the reaction vessel.

    METHOD FOR MAKING PRECURSORS OF CATHODE ACTIVE MATERIALS FOR LITHIUM ION BATTERIES

    公开(公告)号:WO2023285464A1

    公开(公告)日:2023-01-19

    申请号:PCT/EP2022/069469

    申请日:2022-07-12

    Applicant: BASF SE

    Abstract: Process for making a particulate (oxy)hydroxide of TM wherein TM represents a combination of metals, and wherein TM comprises nickel and at least one metal selected from cobalt and aluminum and manganese, wherein said process comprises the steps of: (a) combining an aqueous slurry of metallic nickel and at least one metal selected from aluminum and transition metals other than nickel with an oxidant selected from oxygen and nitrate in a first reaction vessel or in a first group of reaction vessels at a temperature of from 5° to 40°C, (b) transferring aqueous reaction medium from the first reaction vessel to a second reaction vessel, wherein said second reaction vessel contains a slurry of a hydroxide of TM, wherein the pH value in step (b) is higher than in step (a) and the temperature is in the range of from 45° to 80°C, thereby forming and growing particles of hydroxide of TM, (c) removing the particles from step (b) from the liquid by a solid-liquid separation method, and drying the particles, (d) returning liquid phase obtained in step (c) to the first reaction vessel.

    PROCESS FOR MAKING A PARTICULATE (OXY)HYDROXIDE OR OXIDE

    公开(公告)号:WO2022189307A1

    公开(公告)日:2022-09-15

    申请号:PCT/EP2022/055639

    申请日:2022-03-04

    Applicant: BASF SE

    Abstract: Process for making a particulate (oxy)hydroxide or carbonate or oxide of TM wherein TM com-prises nickel and at least one metal selected from cobalt and manganese and aluminum where-in said process comprises the steps of:(a) Providing an aqueous solution (α1) containing a water-soluble salt of Ni and an aqueoussolution (α2) containing a water-soluble salt of Co or an aqueous solution (α3) containinga water-soluble salt of Mn or an aqueous solution (α4) containing a water-soluble com-pound of Al, and an aqueous solution (β) containing an alkali metal hydroxide or car-bonate and, optionally, an aqueous solution (γ) containing ammonia or an organic acidor its alkali metal salt,(b) combining solution (α1) and solution (β) and at least one of solutions (α2) or (α3) or (α4),and, if applicable, solution (γ), in a continuous reactor, thereby creating solid particles ofa hydroxide or carbonate of TM, wherein such solutions are introduced into said contin-uous reactor in different locations,(c) removing the particles from step (b) from the liquid by a solid-liquid separation method.

    PROCESS FOR MAKING A PARTICULATE (OXY)HYDROXIDE

    公开(公告)号:WO2021244963A1

    公开(公告)日:2021-12-09

    申请号:PCT/EP2021/064322

    申请日:2021-05-28

    Applicant: BASF SE

    Abstract: Process for making a particulate (oxy)hydroxide of TM wherein TM comprises nickel and where-in said process comprises the steps of:(a) Providing an aqueous solution (α) containing water-soluble salts of Ni and of at least one transition metal selected from Co and Mn, and, optionally, at least one further metal se-lected from Ti, Zr, Mo, W, Al, Mg, Nb, and Ta, and an aqueous solution (β) containing an alkali metal hydroxide and, optionally, an aqueous solution (γ) containing ammonia,(b) combining a solution (α) and a solution (β) and, if applicable, a solution (γ) at a pH valuein the range of from 12.0 to 13.0 in a stirred tank reactor, thereby creating solid particles ofa hydroxide containing nickel, said solid particles being slurried, (c) transferring said slurry into another stirred tank reactor and combining it with a solution (α)and a solution (β) and, if applicable, a solution (γ) at a pH value in the range of from 11.0to 12.7 and at conditions wherein the solubility of nickel is higher than in step (b),wherein the stirring speed is reduced in the course of step (c).

    PROCESS FOR REMOVING WATER FROM A PARTICULATE MATERIAL

    公开(公告)号:WO2022128804A1

    公开(公告)日:2022-06-23

    申请号:PCT/EP2021/085257

    申请日:2021-12-10

    Applicant: BASF SE

    Abstract: Process for removing water from a particulate material selected from (oxy)hydroxides and carbonates containing at least one of nickel or cobalt and at least one metal other than nickel, said process comprising the step of introducing at least one particulate material with a water content in the range of from 1 to 30 % by weight, referring to said particulate material, into a rotary kiln with external heating elements and moving it through the rotary kiln together with a flow of a gas, wherein the residual moisture of the resultant product is in the range of from 50 ppm to 1.5% by weight.

    METHOD FOR CONTROLLING AND/OR MONITORING AN EQUIPMENT OF A CHEMICAL PLANT

    公开(公告)号:WO2021180870A1

    公开(公告)日:2021-09-16

    申请号:PCT/EP2021/056235

    申请日:2021-03-11

    Applicant: BASF SE

    Abstract: A computer-implemented method for controlling and/or monitoring equipment (110) of a chemical plant is proposed. The method comprises the following steps: a) specifying at least one parameter of a production process to be optimized; b) receiving input data via at least one input channel (126), wherein the input data comprises operating conditions of the production process, physical properties of a plant equipment layout, and at least one predicted parameter determined from a physico- chemical white box model (128), wherein the physico-chemical white box model (128) comprises at least one thermodynamics model (130), at least one solid formation model (132) and a computational fluid dynamics (CFD) based numerical simulation (134) for predicting a precipitation process; c) optimizing the specified parameter via at least one processing device (138), wherein the specified parameter is optimized by adapting the operating conditions of the production process and/or the physical properties of the plant equipment layout based on the predicted parameter.

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