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:
Dec. 09, 2008
Filed:
Apr. 15, 2004
Michael Bartsch, Neustadt, DE;
Robert Baumann, Mannheim, DE;
Gerd Haderlein, Grünstadt, DE;
Miquel Angel Flores, Aranjuez, ES;
Tim Jungkamp, Kapellen, BE;
Hermann Luyken, Ludwigshafen, DE;
Jens Scheidel, Hirschberg, DE;
Wolfgang Siegel, Limburgerhof, DE;
Dagmar Pascale Kunsmann-keitel, Limburgerhof, DE;
Peter Bassler, Viernheim, DE;
Michael Bartsch, Neustadt, DE;
Robert Baumann, Mannheim, DE;
Gerd Haderlein, Grünstadt, DE;
Miquel Angel Flores, Aranjuez, ES;
Tim Jungkamp, Kapellen, BE;
Hermann Luyken, Ludwigshafen, DE;
Jens Scheidel, Hirschberg, DE;
Wolfgang Siegel, Limburgerhof, DE;
Dagmar Pascale Kunsmann-Keitel, Limburgerhof, DE;
Peter Bassler, Viernheim, DE;
Other;
Abstract
A process for dewatering hydrocyanic acid by distillation, which includes distilling crude hydrocyanic acid containing from 50 to 99.9% by weight of HCN, from 0.1 to 40% by weight of water, from 0 to 15% by weight of carbon oxides and optionally from 0.01 to 1% by weight of an involatile stabilizer, at a pressure of from 1 bar to 2.5 bar, a bottom temperature of from 100° C. to 130° C. and a top temperature of from 25° C. to 54° C., in the absence of a volatile stabilizer, in a distillation column to obtain a top draw stream containing purified, anhydrous hydrocyanic acid and carbon oxides and a bottom draw stream including water and, optionally, the involatile stabilizer.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile