公开(公告)号：DE102008041870A1

公开(公告)日：2010-03-11

申请号：DE102008041870

申请日：2008-09-08

Applicant: EVONIK DEGUSSA GMBH

Inventor： BAUMGARTEN GOETZ ,  ROOS MARTIN ,  SCHAEFLEIN STEPHAN ,  AUGENSTEIN ROLF

IPC: C07C249/04 ,  C07C251/32

Abstract: The invention relates to a plant for carrying out chemical reactions, having a reactor (1), the reaction space of which contains hydrogen peroxide (H2O2) and titanium silicalite (TS-1). The object of the invention is to improve such a plant such that continuous separation and recycling of the active catalyst to the reaction space is possible with a long filter service life. This is achieved in that the reaction space contains a solid silicon source, in that the plant comprises a water takeoff line (3) which is set up for drawing off water in addition to components which are dissolved and/or dispersed therein from the reaction space, in that the water takeoff line (3) leads to a filter (4) which separates off the components which are dissolved and/or dispersed in the water, and in that the plant has a return line (5) which is set up for recirculating to the reaction space components which are separated off by means of the filter (4).

公开(公告)号：AT251088T

公开(公告)日：2003-10-15

申请号：AT01905679

申请日：2001-01-24

Applicant: DEGUSSA

Inventor： JAFELD MARKUS ,  SCHAEFLEIN 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：DE50100720D1

公开(公告)日：2003-11-06

申请号：DE50100720

申请日：2001-01-24

Applicant: DEGUSSA

Inventor： JAFELD MARKUS ,  SCHAEFLEIN 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：DE10006862A1

公开(公告)日：2001-09-06

申请号：DE10006862

申请日：2000-02-16

Applicant: DEGUSSA

Inventor： JADFELD MARKUS ,  SCHAEFLEIN STEPHAN ,  STEINER 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 DEG 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：BR0117267B1

公开(公告)日：2015-02-24

申请号：BR0117267

申请日：2001-01-24

Applicant: DEGUSSA

Inventor： JAFELD MARKUS ,  SCHAEFLEIN 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：ZA200206549B

公开(公告)日：2003-07-31

申请号：ZA200206549

申请日：2002-08-15

Applicant: DEGUSSA

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

IPC: C01C3/08 ,  C01C3/10 ,  C01C

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：BR0108358A

公开(公告)日：2003-03-11

申请号：BR0108358

申请日：2001-01-24

Applicant: DEGUSSA

Inventor： JAFELD MARKUS ,  SCHAEFLEIN 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.