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公开(公告)号：DE3763506D1
公开(公告)日：1990-08-09
申请号：DE3763506
申请日：1987-01-07
Applicant: HOECHST AG
Inventor： WINSEL AUGUST PROF DR , STAAB RUDOLF DR , MEDIC NIKOLAJ
Abstract: A process is described for electrolyzing aqueous alkali metal chloride solutions in a membrane cell which contains an anode chamber with the anode and a cathode chamber with the cathode, the two chambers being separated from one another by a cation exchanger membrane. The cathode is porous and foil-like. The cathode and cation exchanger membrane form the actual cathode chamber filled with catholyte and the cathode and cell wall form a gas space. Water is fed into the cathode chamber and alkali metal hydroxide solution is withdrawn from it, hydrogen is withdrawn from the cathode chamber and gas space, and aqueous alkali metal chloride solution is fed into the anode chamber and gaseous chlorine, together with depleted alkali metal chloride solution, is withdrawn from it. A direct voltage which is at least the same as the decomposition voltage is applied to the cathode and anode. A higher pressure is established in the cathode chamber than in the gas space.
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公开(公告)号：DE3425862A1
公开(公告)日：1986-01-23
申请号：DE3425862
申请日：1984-07-13
Applicant: HOECHST AG
Inventor： STAAB RUDOLF DR
Abstract: A gas-diffusion cathode is to be used in the trough-like electrolysis cell with horizontally disposed electrodes which are separated from each other by a membrane. The gas-diffusion cathode (3) rests on a grating (4) with supporting legs (2). A spacer (8) is disposed between membrane (6) and gas-diffusion cathode (3).
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公开(公告)号：AT58759T
公开(公告)日：1990-12-15
申请号：AT84110443
申请日：1984-09-03
Applicant: HOECHST AG
Inventor： STAAB RUDOLF DR , RUSSOW JUERGEN DR
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公开(公告)号：DE3564136D1
公开(公告)日：1988-09-08
申请号：DE3564136
申请日：1985-10-19
Applicant: HOECHST AG
Inventor： STAAB RUDOLF DR , BERGNER DIETER DR , HANNESEN KURT
Abstract: In this electrolysis apparatus for the preparation of chlorine from aqueous alkali halide solutions, which comprises at least one electrolytic cell, the anode and gas diffusion cathode are disposed horizontally and separated from each other by a partition in a housing consisting of two half shells and are connected mechanically and in an electrically conducting manner by means of their edges to the respective half shells. In addition, the cathode is connected in a liquid-tight manner to its half shell and is supported by a current supply and distribution device. The partition is clamped between a circumferential seal between the edges of the half shell and a frame and is supported on a spacer which rests on the cathode and is held by the frame. The frame contains an inlet and outlet for the catholyte.
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公开(公告)号：AT62716T
公开(公告)日：1991-05-15
申请号：AT88104816
申请日：1988-03-25
Applicant: HOECHST AG
Inventor： STAAB RUDOLF DR , RUSSOW JUERGEN DR , MEDIC NIKOLAJ
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Patent Agency Ranking
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公开(公告)号：DE3710855A1
公开(公告)日：1988-10-20
申请号：DE3710855
申请日：1987-04-01
Applicant: HOECHST AG
Inventor： STAAB RUDOLF DR , RUSSOW JUERGEN DR , MEDIC NIKOLAJ DIPL ING
Abstract: In the electrode, the electrocatalytically active part consists of a nickel wire gauze which is covered at least on one side by a mixture of Raney nickel and polytetrafluoroethylene which is attached to a supporting structure which conducts electric current. The supporting structure consists of a frame (2) and a grid bounded by the latter and consisting of stays (3) or expanded metal (4).
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公开(公告)号：DE3439265A1
公开(公告)日：1986-05-07
申请号：DE3439265
申请日：1984-10-26
Applicant: HOECHST AG
Inventor： STAAB RUDOLF DR , BERGNER D DR , HANNESEN K DIPL ING
Abstract: In this electrolysis apparatus for the preparation of chlorine from aqueous alkali halide solutions, which comprises at least one electrolytic cell, the anode and gas diffusion cathode are disposed horizontally and separated from each other by a partition in a housing consisting of two half shells and are connected mechanically and in an electrically conducting manner by means of their edges to the respective half shells. In addition, the cathode is connected in a liquid-tight manner to its half shell and is supported by a current supply and distribution device. The partition is clamped between a circumferential seal between the edges of the half shell and a frame and is supported on a spacer which rests on the cathode and is held by the frame. The frame contains an inlet and outlet for the catholyte.
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公开(公告)号：DE3420483A1
公开(公告)日：1985-12-05
申请号：DE3420483
申请日：1984-06-01
Applicant: HOECHST AG
Inventor： STAAB RUDOLF DR , HANNESEN KURT DIPL ING
Abstract: In this electrolysis apparatus, the anode and the gas diffusion cathode are arranged to be separated from one another by means of a partition. At least one element (6) which has the form of a twin trough is located between two half-shells (1, 2) which are located at the ends and of which one carries an anode (4) and the second carries a cathode (5). This twin trough is formed by a common plate (7) and a lateral wall (8), the height of which is divided by the plate and the edges of which are provided with flanges (9, 10). The anode (4) and the cathode (5) are electrically conductively connected to the wall (8) and to struts (13) which protrude vertically from the plate on both sides. In order to form a cavity (16) between the partition (14) and the cathode (5), a sealing element is arranged between these two.
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公开(公告)号：DE3862416D1
公开(公告)日：1991-05-23
申请号：DE3862416
申请日：1988-03-25
Applicant: HOECHST AG
Inventor： STAAB RUDOLF DR , RUSSOW JUERGEN DR , MEDIC NIKOLAJ
Abstract: In the electrode, the electrocatalytically active part consists of a nickel wire gauze which is covered at least on one side by a mixture of Raney nickel and polytetrafluoroethylene which is attached to a supporting structure which conducts electric current. The supporting structure consists of a frame (2) and a grid bounded by the latter and consisting of stays (3) or expanded metal (4).
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