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公开(公告)号：US11370752B2
公开(公告)日：2022-06-28
申请号：US16482981
申请日：2018-01-31
Applicant: Evonik Operations GmbH
Inventor： Luca Cameretti , Jan Caßens , Ralf Meier
IPC: C07D201/04 , C07C45/48 , C07C49/413 , C07C49/307 , C07D201/10
Abstract: The invention relates to a method for producing cyclododecanone (CDON). During the production, contaminated cyclododecane (CDAN) is produced. This can be separated from CDON by distillation (CDAN-containing fraction). The separation of CDAN and impurities such as 13-oxabicyclo [7.3.1]tridecane occurs by crystallizing out CDAN from the CDAN-containing fraction.
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公开(公告)号：US11034640B1
公开(公告)日：2021-06-15
申请号：US17250133
申请日：2019-06-03
Applicant: Evonik Operations GmbH
Inventor： Kévin Micoine , Luca Cameretti , Ralf Meier , Marcus Matthias Stergar , Dominik Schulte-Althoff , Axel Prinz
Abstract: A method is useful for the continuous production of ketones from a compound with at least one epoxide group in at least one fixed bed reactor. A catalyst composition is used with at least one noble metal and at least one metal oxide. To reduce the proportions of high-boilers which form in the reaction, an inert gas is introduced so that a carbon monoxide partial pressure of 50 mbar or less is set in the reactor.
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公开(公告)号：US20210163392A1
公开(公告)日：2021-06-03
申请号：US17250133
申请日：2019-06-03
Applicant: Evonik Operations GmbH
Inventor： Kévin Micoine , Luca Cameretti , Ralf Meier , Marcus Matthias Stergar , Dominik Schulte-Althoff , Axel Prinz
Abstract: A method is useful for the continuous production of ketones from a compound with at least one epoxide group in at least one fixed bed reactor. A catalyst composition is used with at least one noble metal and at least one metal oxide. To reduce the proportions of high-boilers which form in the reaction, an inert gas is introduced so that a carbon monoxide partial pressure of 50 mbar or less is set in the reactor.
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