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    Method for producing bispyrrolidine compounds
    2.
    发明授权
    Method for producing bispyrrolidine compounds 有权

    公开(公告)号：US11345680B2

    公开(公告)日：2022-05-31

    申请号：US16766678

    申请日：2018-11-13

    Applicant: BASF SE

    Inventor： Rainer Klopsch ,  Hannes Ferdinand Zipfel ,  Alvaro Gordillo Bolonio

    IPC: C07D403/12

    Abstract: The present application relates to a method for preparing compounds of the formula I in which, in a first step, γ-butyrolactone is reacted with diamines of the formula II to form bisamides of the formula Ill, with the amide function of the bisamides of the formula Ill then undergoing partial or complete catalytic hydrogenation in step II) to form bispyrrolidine compounds of the formula I.

    Heterogeneous catalyzed process for the production of 2,2,6,6-tetramethyl-4-piperidone
    3.
    发明授权
    Heterogeneous catalyzed process for the production of 2,2,6,6-tetramethyl-4-piperidone 有权

    公开(公告)号：US12297174B2

    公开(公告)日：2025-05-13

    申请号：US17613677

    申请日：2020-05-24

    Applicant: BASF SE

    Inventor： Thomas Heydt ,  Michael Schmitt ,  Alvaro Gordillo Bolonio ,  Andrei-Nicolae Parvulescu ,  Ulrich Mueller ,  Michael Kuebler

    IPC: C07D211/74

    Abstract: The present invention relates to a process for the production of 2,2,6,6-tetramethyl-4-piperidone particularly comprising (i) providing a reactor containing a catalyst comprising a zeolitic material having a framework structure of FAU, wherein the zeolitic material comprises YO2 and X2O3 in its framework structure, wherein Y is a tetravalent element and X is a trivalent element, wherein the zeolitic material has an YO2 to X2O3 molar ratio of 16 to 175; (ii) preparing a reaction mixture comprising acetone and ammonia; (iii) contacting the catalyst in the reactor with the reaction mixture prepared in (ii) at a temperature in the range of from 40 to 250° C. for obtaining a reaction product comprising 2,2,6,6-tetramethyl-4-piperidone; wherein the mixture prepared in (ii) and contacted with the catalyst in (iii) contains less than 10 weight-% of water based on 100 weight-% of the reaction mixture.

    PROCESS FOR THE DEALUMINATION OF ZEOLITIC MATERIALS
    4.
    发明公开
    PROCESS FOR THE DEALUMINATION OF ZEOLITIC MATERIALS 审中-公开

    公开(公告)号：US20240158245A1

    公开(公告)日：2024-05-16

    申请号：US18550143

    申请日：2022-03-18

    Applicant: BASF SE

    Inventor： Trees Maria De Baerdemaeker ,  Andrei-Nicolae Parvulescu ,  Faruk Oezkirim ,  Ke Jin ,  Ulrich Mueller ,  Alvaro Gordillo Bolonio ,  Lukasz Karwacki

    IPC: C01B39/02

    CPC classification number: C01B39/026

    Abstract: This disclosure relates to a process for the dealumination of a zeolitic material including



    (1) providing a zeolitic material having a tetravalent element and a trivalent element;
    (2) providing an aqueous solution having a pH of less than 0.1;
    (3) treating the zeolitic material with the aqueous solution; and

    with an aqueous solution or with a solvent system, wherein the aqueous solution or the solvent system have a pH comprised in the range of from 4 to 10, wherein the pH of the aqueous solution or of the solvent system refers to the pH prior to contacting with the zeolitic material for treatment thereof. This disclosure also relates to a zeolitic material as obtained and/or obtainable according to said process.

    HETEROGENEOUS SYNTHESIS OF METHYLENE DIANILINE
    6.
    发明申请
    HETEROGENEOUS SYNTHESIS OF METHYLENE DIANILINE 有权

    公开(公告)号：US20230028994A1

    公开(公告)日：2023-01-26

    申请号：US17783728

    申请日：2020-12-11

    Applicant: BASF SE

    Inventor： Andrei-Nicolae Parvulescu ,  Alvaro Gordillo Bolonio ,  Trees Maria De Baerdemaeker ,  Ulrich Mueller ,  Dirk de Vos ,  Ka Yan Cheung

    IPC: C07C213/02 ,  B01J21/06 ,  B01J21/08 ,  B01J23/06 ,  B01J23/755 ,  B01J23/75 ,  B01J35/10

    Abstract: The present invention relates to a catalytic material for the preparation of one or more of 4,4′-methylenedianiline, 2,2′-methylenedianiline, 2,4′-methylenedianiline, and oligomers of two or more thereof, the catalytic material comprising an oxidic support, wherein the oxidic support comprises an element EOS1 selected from the group consisting of Ti, Zr, Al, Si, and mixtures of two or more thereof, and further comprising a supported material supported on the oxidic support, wherein the supported material comprises an element ESM1 selected from the group consisting of Ti, Zr, V, Nb, Ta, Mo, W, Ge, Sn, Sc, Y, La, Ce, Nd, Pr, Hf, Cr, Fe, Co, Ni, Cu Zn, Pb and mixtures of two or more thereof. Further, the present invention relates in particular to a process for the preparation of a catalytic material and to a process for the preparation of one or more of 4,4′-methylenedianiline, 2,2′-methylenedianiline, 2,4′-methylenedianiline and oligomers of two or more thereof.

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