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:
Nov. 26, 2019
Filed:
Jun. 01, 2015
Haldor Topsøe A/s, Kgs. Lyngby, DK;
Niklas Bengt Jakobsson, Kågeröd, SE;
Berit Hinnemann, Stenløse, DK;
Claus Friis Pedersen, Vanløse, DK;
Niels Christian Schjødt, Brønshøj, DK;
Haldor Topsoe A/S, Lyngby, DK;
Abstract
In a process for safe production of phosgene (COCI) from carbon monoxide and chlorine according to the reaction scheme CO (g)+Cl(g)−>COCI(g) in a plant with a capacity of phosgene below 10 t/hr, the CO is produced on site from a feed stock based mainly on CO. The plant preferably comprises a solid oxide electrolysis cell (SOEC) stack system producing CO for use together with chlorine in the phosgene synthesis. This way of producing phosgene is based on using primary raw materials for which escape concentrations above 1000 ppm or even above 10000 ppm or 10% will not result in any health risk.