公开(公告)号：FI932350A0

公开(公告)日：1993-05-24

申请号：FI932350

申请日：1993-05-24

Applicant: DEGUSSA

Inventor： EICKHOFF HUBERT ,  SCHIRRMACHER RUEDIGER ,  MANGARTZ KARL-HEINZ ,  HUBER HANS-MARTIN ,  GOEDECKE RALF

IPC: B01D39/16 ,  B01D39/20 ,  B01D61/14 ,  B01D71/00 ,  B01J8/00 ,  C01B15/013 ,  C01B15/023 ,  B01D

Abstract: The invention relates to a process for the separation of catalyst-free working solution from working solution containing palladium black, of the hydrogenation cycle of the anthraquinone process for the preparation of hydrogen peroxide. The object of the invention was to improve the separation of a catalyst-free working solution from the hydrogenation cycle containing palladium black, which separation had previously been carried out using filter cartridges, and thus to reduce the process costs. The object is achieved by employing a microfilter which operates according to the cross-current principle and has a filter membrane made of ceramic material, especially alpha -alumina or polyolefin having a mean pore width in the range from 0.1 to 3.0 mu m; the cross-current velocity is in general from 0.5 to 5 m/sec.

公开(公告)号：NO931874A

公开(公告)日：1993-11-26

申请号：NO931874

申请日：1993-05-24

Applicant: DEGUSSA

Inventor： EICKHOFF HUBERT ,  SCHIRRMACHER RUEDINGER ,  MANGARTZ KARL-HEINZ ,  HUBER HANS-MARTIN ,  GOEDECKE RALF

IPC: B01D39/16 ,  B01D39/20 ,  B01D61/14 ,  B01D71/00 ,  B01J8/00 ,  C01B15/013 ,  C01B15/023

CPC classification number: B01D61/147 ,  B01J8/006 ,  C01B15/023

公开(公告)号：FI932350A

公开(公告)日：1993-11-26

申请号：FI932350

申请日：1993-05-24

Applicant: DEGUSSA

Inventor： EICKHOFF HUBERT ,  SCHIRRMACHER RUEDIGER ,  MANGARTZ KARL-HEINZ ,  HUBER HANS-MARTIN ,  GOEDECKE RALF

IPC: B01D39/16 ,  B01D39/20 ,  B01D61/14 ,  B01D71/00 ,  B01J8/00 ,  C01B15/013 ,  C01B15/023

Abstract: The invention relates to a process for the separation of catalyst-free working solution from working solution containing palladium black, of the hydrogenation cycle of the anthraquinone process for the preparation of hydrogen peroxide. The object of the invention was to improve the separation of a catalyst-free working solution from the hydrogenation cycle containing palladium black, which separation had previously been carried out using filter cartridges, and thus to reduce the process costs. The object is achieved by employing a microfilter which operates according to the cross-current principle and has a filter membrane made of ceramic material, especially alpha -alumina or polyolefin having a mean pore width in the range from 0.1 to 3.0 mu m; the cross-current velocity is in general from 0.5 to 5 m/sec.

公开(公告)号：BR9302030A

公开(公告)日：1994-03-01

申请号：BR9302030

申请日：1993-05-24

Applicant: DEGUSSA

Inventor： EICKHOFF HUBERT ,  SCHIRMACHER RUDIGER ,  MANGARTZ KARL-HEINZ DR ,  HUBER HANS-MARTIN DR ,  GOEDECKE RALF DR

IPC: B01D39/16 ,  B01D39/20 ,  B01D61/14 ,  B01D71/00 ,  B01J8/00 ,  C01B15/013 ,  C01B15/023 ,  B01D71/02 ,  B01D71/26

Abstract: The invention relates to a process for the separation of catalyst-free working solution from working solution containing palladium black, of the hydrogenation cycle of the anthraquinone process for the preparation of hydrogen peroxide. The object of the invention was to improve the separation of a catalyst-free working solution from the hydrogenation cycle containing palladium black, which separation had previously been carried out using filter cartridges, and thus to reduce the process costs. The object is achieved by employing a microfilter which operates according to the cross-current principle and has a filter membrane made of ceramic material, especially alpha -alumina or polyolefin having a mean pore width in the range from 0.1 to 3.0 mu m; the cross-current velocity is in general from 0.5 to 5 m/sec.

公开(公告)号：SI9300278A

公开(公告)日：1993-12-31

申请号：SI9300278

申请日：1993-05-24

Applicant: DEGUSSA

Inventor： EICKHOFF HUBERT ,  SCHIRRAMACHER RUDIGER ,  MANGARTZ KARL-HEINZ ,  HUBER HANS-MARTIN ,  GOEDECKE RALF

IPC: B01D39/16 ,  B01D39/20 ,  B01D61/14 ,  B01D71/00 ,  B01J8/00 ,  C01B15/013 ,  C01B15/023 ,  B01D71/02 ,  B01D71/26

Abstract: The invention relates to a process for the separation of catalyst-free working solution from working solution containing palladium black, of the hydrogenation cycle of the anthraquinone process for the preparation of hydrogen peroxide. The object of the invention was to improve the separation of a catalyst-free working solution from the hydrogenation cycle containing palladium black, which separation had previously been carried out using filter cartridges, and thus to reduce the process costs. The object is achieved by employing a microfilter which operates according to the cross-current principle and has a filter membrane made of ceramic material, especially alpha -alumina or polyolefin having a mean pore width in the range from 0.1 to 3.0 mu m; the cross-current velocity is in general from 0.5 to 5 m/sec.

公开(公告)号：ZA933607B

公开(公告)日：1993-12-20

申请号：ZA933607

申请日：1993-05-24

Applicant: DEGUSSA

Inventor： EICKHOFF HUBERT ,  SCHIRRMACHER RUEDIGER ,  MANGARTZ KARL-HEINZ ,  HUBER HANS-MARTIN ,  GOEDECKE RALF

IPC: B01D39/16 ,  B01D39/20 ,  B01D61/14 ,  B01D71/00 ,  B01J8/00 ,  C01B15/013 ,  C01B15/023 ,  B01D ,  C01D

Abstract: The invention relates to a process for the separation of catalyst-free working solution from working solution containing palladium black, of the hydrogenation cycle of the anthraquinone process for the preparation of hydrogen peroxide. The object of the invention was to improve the separation of a catalyst-free working solution from the hydrogenation cycle containing palladium black, which separation had previously been carried out using filter cartridges, and thus to reduce the process costs. The object is achieved by employing a microfilter which operates according to the cross-current principle and has a filter membrane made of ceramic material, especially alpha -alumina or polyolefin having a mean pore width in the range from 0.1 to 3.0 mu m; the cross-current velocity is in general from 0.5 to 5 m/sec.

公开(公告)号：AU3877093A

公开(公告)日：1993-12-02

申请号：AU3877093

申请日：1993-05-24

Applicant: DEGUSSA

Inventor： EICKHOFF HUBERT ,  SCHIRRMACHER RUDIGER ,  MANGARTZ KARL-HEINZ ,  HUBER HANS-MARTIN ,  GOEDECKE RALF

IPC: B01D39/16 ,  B01D39/20 ,  B01D61/14 ,  B01D71/00 ,  B01J8/00 ,  C01B15/013 ,  C01B15/023 ,  B01D71/26 ,  B01D71/02

Abstract: The invention relates to a process for the separation of catalyst-free working solution from working solution containing palladium black, of the hydrogenation cycle of the anthraquinone process for the preparation of hydrogen peroxide. The object of the invention was to improve the separation of a catalyst-free working solution from the hydrogenation cycle containing palladium black, which separation had previously been carried out using filter cartridges, and thus to reduce the process costs. The object is achieved by employing a microfilter which operates according to the cross-current principle and has a filter membrane made of ceramic material, especially alpha -alumina or polyolefin having a mean pore width in the range from 0.1 to 3.0 mu m; the cross-current velocity is in general from 0.5 to 5 m/sec.

公开(公告)号：AU651763B2

公开(公告)日：1994-07-28

申请号：AU3877093

申请日：1993-05-24

Applicant: DEGUSSA

Inventor： EICKHOFF HUBERT ,  SCHIRRMACHER RUDIGER ,  MANGARTZ KARL-HEINZ ,  HUBER HANS-MARTIN ,  GOEDECKE RALF

IPC: B01D39/16 ,  B01D39/20 ,  B01D61/14 ,  B01D71/00 ,  B01J8/00 ,  C01B15/013 ,  C01B15/023 ,  B01D71/26 ,  B01D71/02

Abstract: The invention relates to a process for the separation of catalyst-free working solution from working solution containing palladium black, of the hydrogenation cycle of the anthraquinone process for the preparation of hydrogen peroxide. The object of the invention was to improve the separation of a catalyst-free working solution from the hydrogenation cycle containing palladium black, which separation had previously been carried out using filter cartridges, and thus to reduce the process costs. The object is achieved by employing a microfilter which operates according to the cross-current principle and has a filter membrane made of ceramic material, especially alpha -alumina or polyolefin having a mean pore width in the range from 0.1 to 3.0 mu m; the cross-current velocity is in general from 0.5 to 5 m/sec.

公开(公告)号：ZA9303607B

公开(公告)日：1993-12-20

申请号：ZA9303607

申请日：1993-05-24

Applicant: DEGUSSA

Inventor： EICKHOFF HUBERT ,  SCHIRRMACHER RUEDIGER ,  MANGARTZ KARL-HEINZ ,  HUBER HANS-MARTIN ,  GOEDECKE RALF

IPC: B01D39/16 ,  B01D39/20 ,  B01D61/14 ,  B01D71/00 ,  B01J8/00 ,  C01B15/013 ,  C01B15/023 ,  B01D ,  C01D

CPC classification number: B01D61/147 ,  B01J8/006 ,  C01B15/023

公开(公告)号：NO931874L

公开(公告)日：1993-11-26

申请号：NO931874

申请日：1993-05-24

Applicant: DEGUSSA

Inventor： EICKHOFF HUBERT ,  SCHIRRMACHER RUEDINGER ,  MANGARTZ KARL-HEINZ ,  HUBER HANS-MARTIN ,  GOEDECKE RALF

IPC: B01D39/16 ,  B01D39/20 ,  B01D61/14 ,  B01D71/00 ,  B01J8/00 ,  C01B15/013 ,  C01B15/023

Abstract: The invention relates to a process for the separation of catalyst-free working solution from working solution containing palladium black, of the hydrogenation cycle of the anthraquinone process for the preparation of hydrogen peroxide. The object of the invention was to improve the separation of a catalyst-free working solution from the hydrogenation cycle containing palladium black, which separation had previously been carried out using filter cartridges, and thus to reduce the process costs. The object is achieved by employing a microfilter which operates according to the cross-current principle and has a filter membrane made of ceramic material, especially alpha -alumina or polyolefin having a mean pore width in the range from 0.1 to 3.0 mu m; the cross-current velocity is in general from 0.5 to 5 m/sec.