公开(公告)号：CZ20023070A3

公开(公告)日：2003-08-13

申请号：CZ20023070

申请日：2001-01-24

Applicant: DEGUSSA

Inventor： JAFELD MARKUS ,  SCHAFLEIN STEPHAN ,  STEIER NORBERT ,  DICKMANN ANNETTE ,  FRANKE STEFAN ,  RUBO ANDREAS DR ,  SAUER MANFRED DR ,  GAIL ERNST DR

IPC: C01C3/08 ,  C01C3/10

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.

公开(公告)号：AU779105B2

公开(公告)日：2005-01-06

申请号：AU3370401

申请日：2001-01-24

Applicant: DEGUSSA

Inventor： JAFELD MARKUS ,  SCHAFLEIN STEPHAN ,  STEIER NORBERT ,  DICKMANN ANNETTE ,  FRANKE STEFAN ,  RUBO ANDREAS ,  SAUER MANFRED ,  GAIL ERNST

IPC: C01C3/08 ,  C01C3/10

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.

公开(公告)号：CA2398115A1

公开(公告)日：2001-08-23

申请号：CA2398115

申请日：2001-01-24

Applicant: DEGUSSA

Inventor： SCHAFLEIN STEPHAN ,  SAUER MANFRED ,  JAFELD MARKUS ,  GAIL ERNST ,  RUBO ANDREAS ,  STEIER NORBERT ,  DICKMANN ANNETTE ,  FRANKE STEFAN

IPC: C01C3/08 ,  C01C3/10

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 t he 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.