Invention Grant
US08641997B2 Process for producing shaped articles of inorganic cyanides and products obtainable by the process
有权
生产无机氰化物的成型制品和可通过该方法获得的产品的方法
- Patent Title: Process for producing shaped articles of inorganic cyanides and products obtainable by the process
- Patent Title (中): 生产无机氰化物的成型制品和可通过该方法获得的产品的方法
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Application No.: US12198216Application Date: 2008-08-26
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Publication No.: US08641997B2Publication Date: 2014-02-04
- Inventor: Markus Jafeld , Stephan Schäflein , Norbert Steier , Annette Dickmann , Stefan Franke , Andreas Rubo , Manfred Sauer , Ernst Gail
- Applicant: Markus Jafeld , Stephan Schäflein , Norbert Steier , Annette Dickmann , Stefan Franke , Andreas Rubo , Manfred Sauer , Ernst Gail
- Applicant Address: DE Hanau-Wolfgang
- Assignee: CyPlus GmbH
- Current Assignee: CyPlus GmbH
- Current Assignee Address: DE Hanau-Wolfgang
- Agency: Smith, Gambrell & Russell, LLP
- Priority: DE10006862 20000216
- Main IPC: C01C3/08
- IPC: C01C3/08

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.
Public/Granted literature
- US20080317655A1 Process for producing shaped articles of inorganic cyanides and products obtainable by the process Public/Granted day:2008-12-25
Information query
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