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:
Feb. 09, 2010
Filed:
Sep. 10, 2005
Andreas Woelfert, Bad Rappenau, DE;
Carsten Knoesche, Niederkirchen, DE;
Hans-juergen Pallasch, Ludwigshafen, DE;
Martin Sesing, Waldsee, DE;
Eckhard Stroefer, Mannheim, DE;
Hans-martin Polka, Mannheim, DE;
Manfred Heilig, Speyer, DE;
Andreas Woelfert, Bad Rappenau, DE;
Carsten Knoesche, Niederkirchen, DE;
Hans-Juergen Pallasch, Ludwigshafen, DE;
Martin Sesing, Waldsee, DE;
Eckhard Stroefer, Mannheim, DE;
Hans-Martin Polka, Mannheim, DE;
Manfred Heilig, Speyer, DE;
BASF Aktiengesellschaft, Ludwigshafen, DE;
Abstract
The invention relates to a process for separating hydrogen chloride and phosgene, which comprises bringing a mixture of hydrogen chloride and phosgene into contact with an ionic liquid in which at least part of the hydrogen chloride is dissolved in a step a) and then separating off the hydrogen chloride dissolved in the ionic liquid in a step b).