公开(公告)号：US20190040005A1

公开(公告)日：2019-02-07

申请号：US16073941

申请日：2017-01-30

Applicant: BASF SE

Inventor： Richard DEHN ,  Ahmad DEHESTANI ,  Klemens MASSONNE ,  Steffen WAGLÖHNER ,  Joaquim Henrique TELES ,  Thomas SCHAUB ,  Till Christian BRÜGGEMANN ,  Carlos TELLAECHE HERRANZ ,  Oliver TRAPP ,  Jedrzej WYSOCKI

IPC: C07D201/10 ,  C07B43/02 ,  C07B43/06

Abstract: The present invention relates to a process for preparing C4-C15 lactams, in which a C1-C10-alkyl nitrite is reacted with a C4-C15-cycloalkane and is illuminated with a light-emitting diode during the reaction. This forms a C4-C15-cyclohexanone oxime which is then converted further to a C4-C15 lactam; the C1-C10 alcohol formed is recycled into the preparation of the C1-C10-alkyl nitrite.

公开(公告)号：US20240269642A1

公开(公告)日：2024-08-15

申请号：US18293797

申请日：2022-07-25

Applicant: BASF SE

Inventor： Sorin PULBERE ,  Bernd SCHAEFER ,  Niklas BISCH ,  Till Christian BRÜGGEMANN ,  Florian BUCHBENDER ,  Steffen TSCHIRSCHWITZ

IPC: B01J19/12

CPC classification number: B01J19/127 ,  B01J2219/1943

Abstract: The invention relates to a lighting device for a photoreactor comprising a tubular housing (40) having a longitudinal axis (41) and a plurality of individual light sources (30) mounted on the inner surface of the housing (40), wherein the housing (40) comprises flow channels (46) for a heat transfer fluid, the flow channels (46) being arranged at the back side of the inner surface of the housing (40) behind the individual light sources forming a conformal cooling passage for the individual light sources. The invention further relates to a photoreactor comprising a lighting device and a reaction chamber with at least one tubular flow channel, the reaction chamber being arranged inside the lighting device and the channel wall being made of a material transmissive to the light emitted by the light sources.