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    PROCESS OF OBTAINING A POWDER OF LITHIUM SULFIDE, AND USE THEREOF TO PREPARE A LPS COMPOUND
    33.
    发明申请
    PROCESS OF OBTAINING A POWDER OF LITHIUM SULFIDE, AND USE THEREOF TO PREPARE A LPS COMPOUND 有权

    公开(公告)号：US20250002342A1

    公开(公告)日：2025-01-02

    申请号：US18576678

    申请日：2022-07-05

    Applicant: SPECIALTY OPERATIONS FRANCE

    Inventor： Sébastien Jus ,  Lauriane D'Alencon ,  Thierry Le Mercier

    IPC: C01B17/22 ,  C01B25/14 ,  C01D15/02 ,  H01M10/0562

    Abstract: The present disclosure relates to a process of obtaining a powder of lithium sulfide (Li2S powder) having a d50-value of less than 10 μm, a specific surface area of more than 5 m2/g, a total pore volume of more than 0.035 cm3/g and a percentage of total pore volume constituted of pore with diameter below 20 nm of more than 20%, comprising the steps of: a) providing a powder of lithium hydroxide having a d50-value of less than 10 μm and presenting a residual water content below 5 wt. % (LiOH powder A), and b) reacting such LiOH powder A with a sulfide reactant, in order to obtain the Li2S powder. The present disclosure also relates to the powder of lithium sulfide obtained from such process and the use of such Li2S powder to prepare a solid compound of formula (I): LiaPSbXc wherein —X represents at least one halogen element; —a represents a number from 3.0 to 6.0; —b represents a number from 3.5 to 5.0; and —c represents a number from 0 to 3.0.

    POWDER OF SOLID MATERIAL PARTICLES OF FORMULA LiaPSbXc (I)
    34.
    发明申请
    POWDER OF SOLID MATERIAL PARTICLES OF FORMULA LiaPSbXc (I) 有权

    公开(公告)号：US20240413387A1

    公开(公告)日：2024-12-12

    申请号：US18701469

    申请日：2022-10-11

    Applicant: SPECIALTY OPERATIONS FRANCE

    Inventor： Lauriane D'Alencon ,  Jules Valente ,  Thierry Le Mercier

    IPC: H01M10/0562 ,  C01B25/14 ,  H01M10/0525 ,  H01M50/446

    Abstract: The present disclosure relates to a powder of solid material particles of formula (I): LiaPSbXc wherein—X represents at least one halogen element; —a represents a number from 2.0 to 7.0; —b represents a number from 3.0 to 6.0; and —c represents a number from 0 to 3.0, wherein the powder has a d50-value of less than 50 μm, characterised in that its L* value in the L*a*b* color system is less than 60.0. The present disclosure also relates to a process for preparing such powder, as well as to the use of such powder for notably manufacturing solid electrolytes or battery articles.

    BIS-AMINOPHOSPHINES AS CATALYSTS FOR THE DIMERIZATION OF ALKYL ACRYLATES
    37.
    发明申请
    BIS-AMINOPHOSPHINES AS CATALYSTS FOR THE DIMERIZATION OF ALKYL ACRYLATES 有权

    公开(公告)号：US20240400593A1

    公开(公告)日：2024-12-05

    申请号：US18700668

    申请日：2022-10-17

    Applicant: SPECIALTY OPERATIONS FRANCE

    Inventor： Olivier Back

    IPC: C07F9/6584 ,  B01J31/02

    Abstract: The present invention relates to bis-aminophosphines which are useful as catalysts for the dimerization of alkyl acrylates. Furthermore, the present invention relates to a process for preparing bis-aminophophines, the use of these bis-aminophosphines as catalysts for dimerization reaction of alkyl acrylates and a process for obtaining dimers of alkyl acrylates using bis-aminophosphines as catalyst.

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