公开(公告)号：US20200010393A1

公开(公告)日：2020-01-09

申请号：US16494910

申请日：2018-03-12

Applicant: BASF SE

Inventor： Nicolas VAUTRAVERS ,  Joaquim Henrique TELES ,  Andreas Keller ,  Kirsten BRAUNSMANN ,  Andreas Jorg UFER ,  Stefan BAUER ,  Vera LUENSE ,  Marco BOSCH ,  Joseph John ZAKZESKI ,  Michaela FENYN

IPC: C07C45/39 ,  B01J23/42 ,  B01J37/02 ,  B01J37/08 ,  B01J37/16 ,  B01J37/06 ,  B01J37/00

Abstract: Process for the preparation of alpha, beta unsaturated aldehydes by oxidation of alcohols in the presence of a liquid phase wherein the liquid phase contains 0.1 to less than 25 weight-% water and wherein the liquid phase contains at least 25 weight-% of alcohol(s) of general formula (II) and alpha, beta unsaturated aldehyde(s) of general formula (I) and wherein the oxidant is oxygen and/or hydrogen peroxide.

公开(公告)号：US20200009535A1

公开(公告)日：2020-01-09

申请号：US16486914

申请日：2018-02-14

Applicant: BASF SE

Inventor： Ekaterina TROUSSARD ,  Roman Daniel PILZ ,  Emil ROETH ,  Marco BOSCH ,  Susanne WEBER ,  Peter LOECHER ,  Daniel PFEIFFER ,  Thomas HOLTMANN

IPC: B01J23/50 ,  B01J35/00 ,  B01J35/02 ,  B01J35/06 ,  B01J37/14 ,  B01J37/08 ,  C07C45/00

Abstract: The invention relates to a silver-comprising catalyst system for the preparation of aldehydes and/or ketones by oxidative dehydrogenation of alcohols, in particular the oxidative dehydrogenation of methanol to form formaldehyde, comprising a first catalyst layer and a second catalyst layer, wherein the first catalyst layer consists of a silver-comprising material in the form of balls of wire, gauzes or knitteds having a weight per unit area of from 0.3 to 10 kg/m2 and a wire diameter of from 30 to 200 μm and the second catalyst layer consists of a silver-comprising material in the form of granular material having an average particle size of from 0.5 to 5 mm and the two catalyst layers are in direct contact with one another. The invention further relates to a corresponding process for the preparation of aldehydes and/or ketones, in particular of formaldehyde, by oxidative dehydrogenation of corresponding alcohols over a silver-comprising catalyst system.

公开(公告)号：US20210283583A1

公开(公告)日：2021-09-16

申请号：US16323828

申请日：2017-08-08

Applicant: BASF SE

Inventor： ANDREY KARPOV ,  Michael KRAEMER ,  Marco BOSCH ,  Christian BARTOSCH ,  Juergen ZUEHLKE ,  Carlos LIZANDARA PUEYO ,  Guido WASSERSCHAFF

IPC: B01J23/68 ,  B01J6/00 ,  B01J35/10 ,  B01J37/02 ,  B01J23/04 ,  C07D301/10

Abstract: The present invention is directed to a shaped catalyst body for preparing ethylene oxide, which comprises at least silver, cesium and rhenium applied to an alumina support, wherein the alumina support comprises Si, Ca, and Mg in a defined amount. Furthermore, the present invention is directed to a process for preparing the catalyst according to the present invention and process for preparing ethylene oxide by gas-phase oxidation of ethylene by means of oxygen in the presence of a shaped catalyst body according to the present invention.

公开(公告)号：US20210039074A1

公开(公告)日：2021-02-11

申请号：US16968548

申请日：2019-02-06

Applicant: BASF SE

Inventor： Andrey KARPOV ,  Andreas LEHR ,  Daniela RIECK ,  Holger BORCHERT ,  Tobias WEINLAND ,  Marco BOSCH ,  Christian WALSDORFF ,  Christian BARTOSCH ,  Juergen ZUEHLKE

IPC: B01J23/50 ,  B01J35/10 ,  B01J35/02 ,  B01J37/02 ,  B01J37/08 ,  C07D301/02

Abstract: A method for preparing a silver impregnation solution comprises (a) charging a neutralization reactor R1 with an aqueous organic amine; (b) adding oxalic acid powder through a first feeding conduit to the neutralization reactor R1 to obtain an aqueous oxalic acid-organic amine solution; (c) directing the aqueous oxalic acid-organic amine solution from the neutralization reactor to a complexation reactor R2; (d) adding particulate silver oxide through a second feeding conduit to the complexation reactor R2 to obtain a silver impregnation solution; and, optionally, (e) subjecting the silver impregnation solution to filtration. The silver impregnation solution is used for producing a catalyst effective in the oxidative conversion of ethylene to ethylene oxide. The method allows for the preparation of a silver impregnation solution in an efficient and occupationally and environmentally safe way. Security hazards which can occur when oxalic acid and silver oxide are added to an aqueous amine solution using the same powder feeding equipment or the same reactor are avoided.