中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

17 records (took 0.016 seconds)

    GRANULES OR POWDERS AND METHODS FOR THEIR MANUFACTURE
    1.
    发明申请
    GRANULES OR POWDERS AND METHODS FOR THEIR MANUFACTURE 有权

    公开(公告)号：US20210179978A1

    公开(公告)日：2021-06-17

    申请号：US17052364

    申请日：2019-04-25

    Applicant: BASF SE

    Inventor： Marta REINOSO GARCIA ,  Juergen DETERING ,  Carsten SUELING ,  Kati SCHMDT ,  Michael Klemens MUELLER ,  Gazi TUERKOGLU ,  Thomas SCHMIDT

    IPC: C11D11/02 ,  C11D11/00 ,  C11D17/06 ,  C11D3/33 ,  C11D3/37 ,  C11D3/12

    Abstract: Process for manufacturing granules or powders comprising the steps of (a) providing an aqueous solution or slurry of (A) at least one chelating agent according to general formula (I a) [CH3—CH(COO)—N(CH2—COO)2]M3-XHX (I a) wherein M is selected from alkali metal cations and ammonium, same or different, and x is in the range of from 0.01 to 1.0 or (I b) [OOC—CH2CH2—CH(COO)—N(CH2—COO)2]M4-XHX (I b) wherein M is as defined above, and x in formula (I b) is in the range of from 0.01 to 2.0, and (B) at least one polymer selected from (B1) polyaspartates with an average molecular weight Mw in the range of from 1,000 to 20,000 g/mole, and (B2) copolymers comprising, in copolymerized form, (α) at least one ester of an ethylenically unsaturated mono- or dicarboxylic acid, and (β) at least one ethylenically unsaturated N-containing monomer, and (b) spray drying or granulating said solution or slurry.

    A PROCESS FOR PURIFYING CRUDE 4,4'-DICHLORODIPHENYL SULFONE
    3.
    发明申请
    A PROCESS FOR PURIFYING CRUDE 4,4'-DICHLORODIPHENYL SULFONE 有权

    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.

    PROCESS FOR MANUFACTURING GRANULES, AND GRANULES AND THEIR USE
    4.
    发明申请
    PROCESS FOR MANUFACTURING GRANULES, AND GRANULES AND THEIR USE 审中-公开

    公开(公告)号：US20200181537A1

    公开(公告)日：2020-06-11

    申请号：US16316266

    申请日：2017-07-05

    Applicant: BASF SE

    Inventor： Marta REINOSO GARCIA ,  Michael Klemens MUELLER ,  Carsten SUELING ,  Verena MORMUL

    IPC: C11D3/33 ,  C11D17/00 ,  C11D17/06 ,  C11D11/02

    Abstract: Process for manufacturing granules of salts of at least two aminopolycarboxylic acids (A), com-prising the steps of (a) providing an aqueous solution of (A1) at least one alkali metal salt of a mixture of L- and D-enantiomers of methyl glycine diacetic acid (MGDA), said mixture containing predominantly the respective L-isomer with an enantiomeric excess (ee) in the range of from 10 to 95%, (A2) at least one alkali metal salt of L- and D-enantiomers of glutamic acid diacetic acid (GLDA) or of enantiomerically pure L-GLDA, the weight ratio of (A1) and (A2) being in the range of from 1:9 to 9:1, (b) spray granulating said solution with a gas inlet temperature of at least 125° C. Additionally, the present invention relates to granules and to their use.

    PROCESS FOR MAKING A SOLID ALKALI METAL SALT OF AN AMINOCARBOXYLATE COMPLEXING AGENT
    6.
    发明公开
    PROCESS FOR MAKING A SOLID ALKALI METAL SALT OF AN AMINOCARBOXYLATE COMPLEXING AGENT 审中-公开

    公开(公告)号：US20240294463A1

    公开(公告)日：2024-09-05

    申请号：US18268115

    申请日：2021-12-08

    Applicant: BASF SE

    Inventor： Michael Klemens MUELLER ,  Matthias VOGES ,  Markus HARTMANN ,  Frank JAEKEL ,  Astrid SCHMIDT

    IPC: C07C227/44

    CPC classification number: C07C227/44

    Abstract: Process for making a solid alkali metal salt (A) of an aminocarboxylate complexing agent, said process comprising the steps of



    (a) providing a 40 to 80% by weight aqueous solution or slurry comprising salt (A),
    (b) optionally, heating said slurry or solution to a temperature in the range of from 50 to 150° C.,
    (c) introducing the slurry or solution from step (a) or, if applicable, step (b) into an essentially horizontal cylindrical drying apparatus containing a stirring element that rotates around an essentially horizontal axis and that is charged with solid particles of salt (A), and
    (d) removing most of the water by evaporation,
    (e) removing solid salt (A) as granule.

    PROCESS FOR MAKING A GRANULE OR POWDER
    8.
    发明申请
    PROCESS FOR MAKING A GRANULE OR POWDER 有权

    公开(公告)号：US20220154112A1

    公开(公告)日：2022-05-19

    申请号：US17599766

    申请日：2020-03-20

    Applicant: BASF SE

    Inventor： Frank JAEKEL ,  Michael Klemens MUELLER ,  Astrid SCHMIDT

    IPC: C11D17/06 ,  C11D11/02 ,  C11D11/00 ,  C11D3/08 ,  C11D3/33 ,  C11D3/37 ,  C11D3/39

    Abstract: Process making a powder or granule containing (A) at least one chelating agent selected from alkali metal salts of methyl glycine diacetic acid (MGDA) and of glutamic acid diacetate (GLDA) and of iminodisuccinic acid (IDS), (B) at least one alkali metal silicate, and (C) at least one (co)polymer containing carboxylic acid group, partially neutralized with alkali, in a weight ratio of (A):[(B)+(C)] of from 20:1 up to 100:1, wherein said powder or granule contains at least 75% by weight of chelating agent (A), said process comprising the steps of (a) mixing the at least one chelating agent (A) and the at least one alkali metal silicate (B) and the at least one (co)polymer (C) in the presence of water, (b) removing most of said water by spray-drying or spray granulation using a gas with an inlet temperature of at least 125° C.

    PROCESS FOR MAKING A GRANULE OR POWDER
    9.
    发明申请
    PROCESS FOR MAKING A GRANULE OR POWDER 有权

    公开(公告)号：US20210317392A1

    公开(公告)日：2021-10-14

    申请号：US17280066

    申请日：2019-09-16

    Applicant: BASF SE

    Inventor： Frank JAEKEL ,  Astrid SCHMIDT ,  Michael Klemens MUELLER

    IPC: C11D11/00 ,  C11D17/06 ,  C11D3/33 ,  C11D1/04 ,  C11D3/39 ,  B01J2/04 ,  B01J2/16

    Abstract: Process for making a powder or granule containing (A) at least one chelating agent selected from alkali metal salts of methyl glycine diacetic acid (MGDA) and of glutamic acid diacetate (GLDA) and of iminodisuccinic acid (IDS), (B) at least one alkali metal salt of a C10-C20 fatty acid, in a weight ratio of (A):(B) of from 40:1 up to 1,000:1, wherein said powder or granule contains at least 75% by weight of chelating agent (A), said process comprising the steps of (c) mixing the at least one chelating agent (A) and the at least one alkali metal salt of fatty acid (B) in the presence of water, (d) removing most of said water by spray-drying or by spray granulation using a gas with an inlet temperature of at least 125° C.

Patent Agency Ranking