公开(公告)号：US20220274923A1

公开(公告)日：2022-09-01

申请号：US17635031

申请日：2020-08-20

Applicant: BASF SE

Inventor： Jessica Nadine HAMANN ,  Lukas Karl METZGER ,  Stefan BLEl

IPC: C07C315/06

Abstract: The invention relates to a process for obtaining 4,4′-dichlorodiphenyl sulfone from an organic mixture comprising 4,4′-dichlorodiphenyl sulfone and a linear C6 to C10 carboxylic acid as organic solvent, comprising: (a) cooling the organic mixture by (a1a) mixing the organic mixture with water in a crystallization vessel to obtain a liquid mixture; (a1b) cooling the liquid mixture obtained in (a1a) to a temperature below the saturation point of 4,4′-dichlorodiphenyl sulfone by (i) reducing the pressure in the crystallization vessel to a pressure at which the water starts to evaporate, (ii) condensing the evaporated water by cooling, (iii) mixing the condensed water into the liquid mixture in the crystallization vessel, to obtain a suspension comprising crystallized 4,4′-dichlorodiphenyl sulfone; or by (a2) bringing the organic mixture into contact with at least one coolable surface and thereby reducing the temperature in the organic mixture with a cooling rate in the range from 5 to 50 K/h until a temperature in the range from 10 to 30° C. is reached, wherein the organic mixture and the at least one coolable surface have a temperature difference which is kept during the whole cooling process in the range from 1 to 30 K to obtain a suspension comprising crystallized 4,4′-dichlorodiphenyl sulfone. (b) carrying out a solid-liquid-separation of the suspension obtained in (a1b) or in (a2) to obtain a residual moisture containing solid 4,4′-dichlorodiphenyl sulfone as product and mother liquor comprising the organic solvent and water.

公开(公告)号：US20240228323A9

公开(公告)日：2024-07-11

申请号：US18548011

申请日：2022-03-04

Applicant: BASF SE

Inventor： Thorsten BEIERLING ,  Rafael Benjamin BERK ,  Lukas Karl METZGER

IPC: C01G53/00

CPC classification number: C01G53/42 ,  C01P2004/03 ,  C01P2006/12 ,  C01P2006/82

Abstract: Disclosed herein is a process for making a particulate (oxy)hydroxide, carbonate, or oxide of TM which includes nickel and at least one metal selected from the group consisting of cobalt, manganese, and aluminum. The process includes providing an aqueous solution (α1) containing a water-soluble salt of Ni, one of an aqueous solution (α2) containing a water-soluble salt of Co, an aqueous solution (α3) containing a water-soluble salt of Mn, or an aqueous solution (α4) containing a water-soluble compound of Al, an aqueous solution (β) containing an alkali metal hydroxide or carbonate and, optionally, an aqueous solution (γ) containing ammonia or an organic acid or its alkali metal salt, combining solution (α1) and solution (β) and at least one of solutions (α2), (α3), (α4), and, if applicable, solution (γ), in different locations of a continuous reactor, and removing the particles from the liquid by a solid-liquid separation method.

公开(公告)号：US20240132372A1

公开(公告)日：2024-04-25

申请号：US18548011

申请日：2022-03-04

Applicant: BASF SE

Inventor： Thorsten BEIERLING ,  Rafael Benjamin BERK ,  Lukas Karl METZGER

IPC: C01G53/00

CPC classification number: C01G53/42 ,  C01P2004/03 ,  C01P2006/12 ,  C01P2006/82

Abstract: Disclosed herein is a process for making a particulate (oxy)hydroxide, carbonate, or oxide of TM which includes nickel and at least one metal selected from the group consisting of cobalt, manganese, and aluminum. The process includes providing an aqueous solution (α1) containing a water-soluble salt of Ni, one of an aqueous solution (α2) containing a water-soluble salt of Co, an aqueous solution (α3) containing a water-soluble salt of Mn, or an aqueous solution (α4) containing a water-soluble compound of Al, an aqueous solution (β) containing an alkali metal hydroxide or carbonate and, optionally, an aqueous solution (γ) containing ammonia or an organic acid or its alkali metal salt, combining solution (α1) and solution (β) and at least one of solutions (α2), (α3), (α4), and, if applicable, solution (γ), in different locations of a continuous reactor, and removing the particles from the liquid by a solid-liquid separation method.

公开(公告)号：US20220356152A1

公开(公告)日：2022-11-10

申请号：US17636932

申请日：2020-08-20

Applicant: BASF SE

Inventor： Stefan BLEI ,  Jessica Nadine HAMANN ,  Lukas Karl METZGER ,  Christian SCHUETZ ,  Jun GAO ,  Frauke THRUN ,  Andreas MELZER ,  Michael Klemens MUELLER

IPC: C07C315/06

Abstract: The invention relates to a process for purifying crude 4,4′-dichlorodiphenyl sulfone comprising: (a) dissolving the crude 4,4′-dichlorodiphenyl sulfone which may contain water in an organic solvent in which 4,4′-dichlorodiphenyl sulfone has a solubility of 0.5 to 20% at 20° C. and optionally adding water to obtain a solution which comprises 4,4′-dichlorodiphenyl sulfone, the organic solvent and 1 to 30 wt % water based on the amount of 4,4′-dichlorodiphenyl sulfone and water; (b) cooling the solution to a temperature below the saturation point of 4,4′-dichlorodiphenyl sulfone to obtain a suspension comprising crystallized 4,4′-dichlorodiphenyl sulfone; (c) carrying out a solid-liquid separation to obtain residual moisture containing 4,4′-dichlorodiphenyl sulfone and a mother liquor; (d) washing the residual moisture containing 4,4′-dichlorodiphenyl sulfone with an organic solvent in which 4,4′-dichlorodiphenyl sulfone has a solubility of 0.5 to 20% at 20° C.; (e) optionally repeating steps (b) to (d); (f) drying the 4,4′-dichlorodiphenyl sulfone.

公开(公告)号：US20240425385A1

公开(公告)日：2024-12-26

申请号：US18570726

申请日：2022-07-12

Applicant: BASF SE

Inventor： Thorsten BEIERLING ,  Sabine FRISCHHUT ,  Matthias RAULS ,  Lukas Karl METZGER ,  Sabine WEIGUNY ,  Michael LENNARTZ ,  Rafael Benjamin BERK

IPC: C01G53/00

Abstract: Disclosed herein is a process for making a particulate (oxy)hydroxide of TM, where TM represents a combination of metals and includes nickel and at least one metal selected from cobalt and aluminum and manganese. The process includes: (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, where the second reaction vessel contains a slurry of a hydroxide of TM, (c) removing the particles from step (b) from the liquid by a solid-liquid separation method, and drying the particles, and (d) returning liquid phase obtained in step (c) to the first reaction vessel.

公开(公告)号：US20240351912A1

公开(公告)日：2024-10-24

申请号：US18683954

申请日：2022-09-12

Applicant: BASF SE

Inventor： Sabine FRISCHHUT ,  Thorsten BEIERLING ,  Lukas Karl METZGER ,  Matthias RAULS ,  Marc DUCHARDT

IPC: C01G53/00 ,  C01G53/04 ,  H01M4/02 ,  H01M4/525

CPC classification number: C01G53/42 ,  C01G53/04 ,  C01G53/40 ,  H01M4/525 ,  C01P2002/52 ,  C01P2006/40 ,  H01M2004/028

Abstract: Disclosed herein is a process for making a particulate (oxy)hydroxide of TM, where TM represents metals and includes nickel and at least one metal selected from cobalt and aluminum and manganese. The process includes 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 reaction 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 particles,
(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.