公开(公告)号：US20190077779A1

公开(公告)日：2019-03-14

申请号：US16076600

申请日：2017-02-16

Applicant: BASF SE

Inventor： Dominic RIEDEL ,  Joaquim Henrique TELES ,  Heiner SCHELLING ,  Ulrike WEGERLE ,  Ulrich MUELLER ,  Andrei-Nicolae PARVULESCU ,  Jochen MANNWEILER ,  Timo HENN ,  Thomas LUEDERITZ ,  Nicolai Tonio WOERZ ,  Christian MUELLER ,  Markus WEBER ,  Daniel URBANCZYK

IPC: C07D301/12 ,  C07D301/36 ,  B01J29/70 ,  B01J19/00

CPC classification number: C07D301/12 ,  B01J19/0013 ,  B01J29/7088 ,  B01J2219/00033 ,  B01J2219/00051 ,  B01J2219/00162 ,  B01J2219/00166 ,  C07D301/36 ,  C07D303/04

Abstract: A continuous process for the preparation of propylene oxide, comprising a start-up stage and normal run stage, wherein the normal run stage comprises (i) continuously providing a liquid feed stream comprising propene, hydrogen peroxide, acetonitrile, a formate salt, water and optionally propane, wherein in the liquid feed stream, the molar amount of the formate salt relative to the molar amount of hydrogen peroxide at a given point of time during the normal run stage is aN(Fo/H2O2); (ii) continuously passing the liquid feed stream provided in (i) into an epoxidation zone comprising a catalyst comprising a titanium zeolite having framework type MWW, and subjecting the liquid feed stream to epoxidation reaction conditions in the epoxidation zone, obtaining a reaction mixture comprising propylene oxide, acetonitrile, water, the formate salt, optionally propene, and optionally propane; (iii) continuously removing an effluent stream from the epoxidation zone, the effluent stream comprising propylene oxide, acetonitrile, water, at least a portion of the formate salt, optionally propene, and optionally propane; wherein the normal run stage is characterized in an average rate of change of aN(Fo/H2O2) of less than 0 h−1.

公开(公告)号：US20240409825A1

公开(公告)日：2024-12-12

申请号：US18700426

申请日：2022-10-06

Applicant: BASF SE

Inventor： Oliver PILARSKI ,  Lisa LOEBNITZ ,  Daniel KOEPKE ,  Armin LANGE DE OLIVEIRA ,  Christian MUELLER ,  Monica HAAG ,  Gisela HIEBER ,  Michael SCHREIBER ,  Julian MEYER-KIRSCHNER ,  Michael LOHMANN ,  Timo HENN

IPC: C10G53/04 ,  C10G21/00 ,  C10G31/09

Abstract: A process for improving the quality of a crude pyrolysis oil originating from a pyrolysis of plastic waste is provided, the process comprising providing a crude pyrolysis oil originating from the pyrolysis of plastic waste, adjusting the pH value of the crude pyrolysis oil, resulting in a pretreated crude pyrolysis oil, performing a solid-liquid-separation of solid components and liquid components of the pretreated crude pyrolysis oil and/or subjecting the pretreated crude pyrolysis oil to a liquid-liquid-separation.