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    21.
    发明专利
    未知

    公开(公告)号：DE19717729A1

    公开(公告)日：1998-10-29

    申请号：DE19717729

    申请日：1997-04-26

    Applicant: DEGUSSA

    Inventor： SCHUETTE RUEDIGER DR ,  PELGRIMS IVAN ,  KAISER LOTHAR ,  BEWERSDORF MARTIN DR

    IPC: C01B15/10 ,  C11D3/39 ,  C11D17/00 ,  B01J2/16 ,  C11D3/395

    Abstract: Coated particles of sodium percarbonate consisting of a core of sodium percarbonate made by crystallisation in the aqueous phase and a two-layer coating adhering to and enveloping the core, applied by spraying in a whirling bed, in which the innermost layer consists essentially of Na percarbonate and the outer layer consists essentially of Na sulphate which may be partially hydrated.

    23.
    发明专利
    未知

    公开(公告)号：DE19650959A1

    公开(公告)日：1998-06-10

    申请号：DE19650959

    申请日：1996-12-07

    Applicant: DEGUSSA

    Inventor： SCHUETTE RUEDIGER DR ,  RUHS ALEXANDER DR ,  PELGRIMS IVAN

    IPC: B01D9/00 ,  B01D9/02 ,  B01D19/02 ,  B01J8/18 ,  B01J8/22 ,  B01J19/00 ,  C01B15/055 ,  C07C311/02 ,  C07B33/00

    Abstract: Reducing or preventing foaming in chemical and physical transformation processes in liquid media comprises carrying out the transformation in a buoyancy-free jet reactor with no baffles, which has a tapered lower part and is fitted with a gas injector in a position which facilitates circulation without buoyancy. The reactor contents are thoroughly mixed by gas injection. Also claimed is an apparatus for the above process, with a pipe connection for taking off a high-solids suspension and an inlet tube for a liquid medium above the gas injector, the outlet of this tube being located in the cloud of bubbles formed when the apparatus is working.

    26.
    发明专利
    未知

    公开(公告)号：ES2181083T3

    公开(公告)日：2003-02-16

    申请号：ES98106360

    申请日：1998-04-07

    Applicant: DEGUSSA

    Inventor： SCHUTTE RUDIGER DR ,  PELGRIMS IVAN ,  KAISER LOTHAR ,  BEWERSDORF MARTIN DR

    IPC: C01B15/10 ,  C11D3/39 ,  C11D17/00

    Abstract: Coated particles of sodium percarbonate consisting of a core of sodium percarbonate made by crystallisation in the aqueous phase and a two-layer coating adhering to and enveloping the core, applied by spraying in a whirling bed, in which the innermost layer consists essentially of Na percarbonate and the outer layer consists essentially of Na sulphate which may be partially hydrated.

    28.
    发明专利
    未知

    公开(公告)号：ES2152617T3

    公开(公告)日：2001-02-01

    申请号：ES97120514

    申请日：1997-11-22

    Applicant: DEGUSSA

    Inventor： SCHUTTE RUDIGER DR ,  RUHS ALEXANDER DR ,  PELGRIMS IVAN

    IPC: B01D9/00 ,  B01D9/02 ,  B01D19/02 ,  B01J8/18 ,  B01J8/22 ,  B01J19/00

    Abstract: Reducing or preventing foaming in chemical and physical transformation processes in liquid media comprises carrying out the transformation in a buoyancy-free jet reactor with no baffles, which has a tapered lower part and is fitted with a gas injector in a position which facilitates circulation without buoyancy. The reactor contents are thoroughly mixed by gas injection. Also claimed is an apparatus for the above process, with a pipe connection for taking off a high-solids suspension and an inlet tube for a liquid medium above the gas injector, the outlet of this tube being located in the cloud of bubbles formed when the apparatus is working.

    Production of cyclic 4-oxoamidines useful as intermediates, e.g. for hypotensives or plant protection agents
    30.
    发明专利
    Production of cyclic 4-oxoamidines useful as intermediates, e.g. for hypotensives or plant protection agents 未知

    公开(公告)号：DE19912383A1

    公开(公告)日：1999-09-30

    申请号：DE19912383

    申请日：1999-03-19

    Applicant: DEGUSSA

    Inventor： DRAUZ KARLHEINZ ,  HOFFMANN ROLF ,  PELGRIMS IVAN

    IPC: C07D233/32 ,  C07D233/70 ,  C07D235/02 ,  C07D239/36 ,  C07D239/70 ,  C07D243/04 ,  C07D247/02

    Abstract: Production of cyclic 4-oxoamidines (I) comprises oxidizing or dehydrogenating 1,3-diazacycloalkan-4-ones (II). Production of cyclic 4-oxoamidines of formula (I) or their salts comprises oxidizing or dehydrogenating 1,3-diazacycloalkan-4-ones of formula (II) or their salts: R , R = H; 1-8C alkyl, 2-8C alkenyl, 2-8C alkynyl, 1-8C alkoxy or 2-8C alkoxyalkyl, optionally substituted by halogen and/or N-, O- or P-containing groups; 3-7C (un)saturated cycloalkyl optionally substituted by 1-8C alkyl, 2-8C alkenyl, 1-8C alkoxy or 2-8C alkoxyalkyl, halogen and/or N-, O- or P-containing groups and optionally containing heteroatoms (e.g. N, O or P) in the ring; or aryl, aralkyl, heteroaryl or heteroaralkyl optionally substituted by 1-8C alkyl, 2-8C alkenyl, 1-8C alkoxy or 2-8C alkoxyalkyl, halogen and/or N-, O- or P-containing groups; or CR R is a 3- to 7-membered (un)saturated carbocyclic or heterocyclic ring optionally substituted by 1-8C alkyl, 2-8C alkenyl, 1-8C alkoxy or 2-8C alkoxyalkyl, halogen and/or N-, O- or P-containing groups; R -R = H; 1-8C alkyl, 2-8C alkenyl, 2-8C alkynyl, 1-8C alkoxy or 2-8C alkoxyalkyl, optionally substituted by halogen and/or N-, O- or P-containing groups; 3-7C (un)saturated cycloalkyl optionally substituted by 1-8C alkyl, 2-8C alkenyl, 1-8C alkoxy or 2-8C alkoxyalkyl, halogen and/or N-, O- or P-containing groups and optionally containing heteroatoms (e.g. N, O or P) in the ring; or aryl, aralkyl, heteroaryl or heteroaralkyl optionally substituted by 1-8C alkyl, 2-8C alkenyl, 1-8C alkoxy or 2-8C alkoxyalkyl, halogen and/or N-, O- or P-containing groups, provided that at least one of R and R is H; n = 1-3; bonds a, b = optional double bonds.

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