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公开(公告)号：ID18091A
公开(公告)日：1998-02-26
申请号：ID973824
申请日：1997-12-03
Applicant: DEGUSSA AKTIENGESELLSHCAFT
Inventor： SCHUTTE RUDIGER , RUHS ALEXANDER , PELGRIMS IVAN
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.
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公开(公告)号：AT196613T
公开(公告)日：2000-10-15
申请号：AT97120514
申请日：1997-11-22
Applicant: DEGUSSA
Inventor： SCHUETTE RUEDIGER DR , RUHS ALEXANDER DR , PELGRIMS IVAN
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.
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公开(公告)号：CA2267080A1
公开(公告)日：1999-09-27
申请号：CA2267080
申请日：1999-03-26
Applicant: DEGUSSA
Inventor： DRAUZ KARLHEINZ , HOFFMANN ROLF , PELGRIMS IVAN
IPC: C07D233/32 , C07D233/70 , C07D235/02 , C07D401/00 , C07D403/00 , C07D405/00 , C07D243/04 , C07D239/22 , C07F9/645
Abstract: The present invention relates to a process for the preparation of cyclic 4-oxoamidines. Such substances are precursors of active substances having biological action. The process according to the invention forms a further method of obtaining this class of compound. By reacting condensation products of aldehydes and amino-nitriles or amino acid amides with oxidising agents, the desired cyclic 4-oxoamidines are obtained according to the invention in good to very good yields.
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公开(公告)号：TR199701514A2
公开(公告)日：1998-06-22
申请号：TR9701514
申请日：1997-12-04
Applicant: DEGUSSA
Inventor： SCHUTTE RUDIGER , RUHS ALEXANDER , PELGRIMS IVAN
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.
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15.发明专利
公开(公告)号：DE19639579C1
公开(公告)日：1998-01-08
申请号：DE19639579
申请日：1996-09-26
Applicant: DEGUSSA
Inventor： SCHUETTE RUEDIGER DR , RUHS ALEXANDER DR , PELGRIMS IVAN , KLASEN CLAAS-JUERGEN DR , KAISER LOTHAR
Abstract: The process recovers two or more fractions of granules of differing size distribution, from a continuous fluidised bed spray granulator. Classification devices are used to extract the product. The granule residence time in the bed is held constant. At the same time, an area ratio is adjusted, enabling a periodic oscillation of the particle size distribution. This is the area ratio of the time integral of the extraction area (f) of the extractor(s), to the base area (F) of the bed. To increase the amplitude fluctuation between maximum and minimum mean granule diameter, the area ratio f/F is reduced in an interval. Then, maintaining this ratio, the granules are extracted in successive fractions, with differing size distributions. Also claimed is the apparatus for carrying out the above process.
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Patent Agency Ranking
公开(公告)号：DE19516609A1
公开(公告)日：1996-11-14
申请号：DE19516609
申请日：1995-05-10
Applicant: DEGUSSA
Inventor： PELGRIMS IVAN , KLASEN CLAAS-JUERGEN DR
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公开(公告)号：DE59805056D1
公开(公告)日：2002-09-12
申请号：DE59805056
申请日：1998-04-07
Applicant: DEGUSSA
Inventor： SCHUETTE DR , PELGRIMS IVAN , KAISER LOTHAR , BEWERSDORF DR
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.
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公开(公告)号：DE59702401D1
公开(公告)日：2000-11-02
申请号：DE59702401
申请日：1997-11-22
Applicant: DEGUSSA
Inventor： SCHUETTE DR , RUHS DR , PELGRIMS IVAN
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.
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公开(公告)号：AT187420T
公开(公告)日：1999-12-15
申请号：AT96105688
申请日：1996-04-11
Applicant: DEGUSSA
Inventor： PELGRIMS IVAN , KLASEN CLAAS-JUERGEN DR
IPC: C01B15/12
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公开(公告)号：BR9706123A
公开(公告)日：1999-08-10
申请号：BR9706123
申请日：1997-12-03
Applicant: DEGUSSA
Inventor： SCHUETTE RUEDIGER DR , RUHS ALEXANDER DR , PELGRIMS IVAN
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.
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