The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 05, 2026
Filed:
May. 10, 2021
Basf SE, Ludwigshafen am Rhein, DE;
Gerhard Olbert, Ludwigshafen am Rhein, DE;
Benjamin Kron, Seattle, WA (US);
Jochen Gauer, Ludwigshafen am Rhein, DE;
Jens Ferbitz, Ludwigshafen am Rhein, DE;
Torsten Mattke, Ludwigshafen am Rhein, DE;
Kai Thiele, Antwerp, BE;
Peter Van Den Abeel, Antwerp, BE;
Koenraad Vandewalle, Antwerp, BE;
Kirill Bramnik, Ludwigshafen am Rhein, DE;
Jim Brandts, De Meern, NL;
BASF SE, Ludwigshafen am Rhein, DE;
Abstract
The invention relates to a process for the production of phosgene comprising a gas phase reaction of carbon monoxide and chlorine in the presence of a carbon catalyst in a multi-tubular reactor, wherein the carbon catalyst comprises an amount of mesopores having a pore diameter in the range of from 2 to 50 nm of at least 0.45 ml/g of the total pore volume and the use of a carbon catalyst comprising an amount of mesopores having a pore diameter in the range of from 2 to 50 nm of at least 0.45 ml/g of the total pore volume, for the production of phosgene and a reaction mixture for preparing phosgene, the mixture comprising a catalyst for preparing phosgene comprising a porous material comprising carbon, micropores and mesopores, wherein said micropores have a pore diameter of less than 2 nm and wherein said mesopores have a pore diameter in the range of from 2 to 50 nm, wherein the volume of the mesopores of the porous material is of at least 0.45 ml/g, and a gas stream G comprising carbon monoxide (CO) and chlorine (Cl).