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. 04, 2014
Filed:
Aug. 26, 2008
Markus Jafeld, Frechen, DE;
Stephan Schäflein, Haltern, DE;
Norbert Steier, Euskirchen, DE;
Annette Dickmann, Rodenbach, DE;
Stefan Franke, Bad Vilbel, DE;
Andreas Rubo, Leihgestern, DE;
Manfred Sauer, Rodenbach, DE;
Ernst Gail, Egelsbach, DE;
Markus Jafeld, Frechen, DE;
Stephan Schäflein, Haltern, DE;
Norbert Steier, Euskirchen, DE;
Annette Dickmann, Rodenbach, DE;
Stefan Franke, Bad Vilbel, DE;
Andreas Rubo, Leihgestern, DE;
Manfred Sauer, Rodenbach, DE;
Ernst Gail, Egelsbach, DE;
CyPlus GmbH, Hanau-Wolfgang, DE;
Abstract
The invention relates to a method for producing shaped inorganic cyanide bodies, especially made of alkaline metal cyanides and alkaline earth metal cyanides, by pressing particulate inorganic cyanide obtained by means of a crystallization method. According to the invention, a cyanide crystallate separated from a mother liquor by means of a solid-liquid separation device and containing 2-15 wt. % water is fed to a forming device without the addition of an auxiliary forming agent and placed under pressure and compressed to form shaped bodies containing 0.1-12 wt. % water. The amount of water contained by the shaped bodies is always less than that contained in the crystallates used for the production thereof. Preferably, the crystallite is pressed out of a rotary filter or a centrifuge at a temperature of more than 40° C. to form shaped bodies containing 0.2-6 wt. % residual water. The inventive method can be carried out in a more economical manner than previously known methods using dried cyanide. The invention also relates to shaped inorganic cyanide bodies obtained according to said method.