Process for producing moldings of inorganic cyanides and products obtained in such a manner

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 se...

Full description

Saved in:
Bibliographic Details
Main Authors RUBO ANDREAS DR, FRANKE STEFAN, JAFELD MARKUS, DICKMANN ANNETTE, GAIL ERNST DR, STEIER NORBERT, SAUER MANFRED DR, SCHAFLEIN STEPHAN
Format Patent
LanguageCzech
English
Published 13.08.2003
Edition7
Subjects
AMMONIA
CHEMISTRY
COMPOUNDS THEREOF
CYANOGEN
INORGANIC CHEMISTRY
METALLURGY
Online AccessGet full text

Cover

More Information
Summary: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.
Bibliography:Application Number: CZ20020003070