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公开(公告)号：ES2098646T3
公开(公告)日：1997-05-01
申请号：ES93201850
申请日：1993-06-25
Applicant: SOLVAY
Inventor： BOURGEOIS LOUIS
Abstract: Process for the manufacture of an aqueous solution of sodium hydroxide by electrodialysis of an aqueous solution (15) of a sodium salt derived from an acid of pK lower than the pK of carbonic acid, obtained by circulating an aqueous solution of the said acid (14) and an aqueous solution of sodium carbonate (13) on either side of a cationic membrane (12).
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公开(公告)号：FI933061A
公开(公告)日：1994-01-04
申请号：FI933061
申请日：1993-07-02
Applicant: SOLVAY
Inventor： BOURGEOIS LOUIS
Abstract: Process for the manufacture of an aqueous solution of sodium hydroxide by electrodialysis of an aqueous solution (15) of a sodium salt derived from an acid of pK lower than the pK of carbonic acid, obtained by circulating an aqueous solution of the said acid (14) and an aqueous solution of sodium carbonate (13) on either side of a cationic membrane (12).
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公开(公告)号：SK17793A3
公开(公告)日：1993-10-06
申请号：SK17793
申请日：1993-03-09
Applicant: SOLVAY
Inventor： BOURGEOIS LOUIS
Abstract: Process for the manufacture of sodium hydroxide, according to which an electrodialysis cell is used, water or an aqueous sodium hydroxide solution (10, 10') is introduced into a chamber (6, 6') of the cell, defined between a cationic membrane (2, 2') and an anionic face (8, 8') of a bipolar membrane (3, 3'), an aqueous sodium carbonate solution (11, 11') is introduced into a chamber (7, 7') defined between a cationic face (9, 9') of the bipolar membrane (3, 3') and another cationic membrane (2', 2''), an alkaline pH is maintained in the chamber (7, 7') which is supplied with the sodium carbonate solution (11, 11') and an aqueous sodium hydroxide solution (12, 12') is drawn off from the chamber (6, 6') containing the anionic face (8, 8') of the bipolar membrane (3, 3').
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公开(公告)号：NO930845A
公开(公告)日：1993-09-10
申请号：NO930845
申请日：1993-03-08
Applicant: SOLVAY
Inventor： BOURGEOIS LOUIS
CPC classification number: C01D1/38 , B01D61/445
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公开(公告)号：FI933061A0
公开(公告)日：1993-07-02
申请号：FI933061
申请日：1993-07-02
Applicant: SOLVAY
Inventor： BOURGEOIS LOUIS
Abstract: Process for the manufacture of an aqueous solution of sodium hydroxide by electrodialysis of an aqueous solution (15) of a sodium salt derived from an acid of pK lower than the pK of carbonic acid, obtained by circulating an aqueous solution of the said acid (14) and an aqueous solution of sodium carbonate (13) on either side of a cationic membrane (12).
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Patent Agency Ranking
公开(公告)号：HU9300615D0
公开(公告)日：1993-05-28
申请号：HU9300615
申请日：1993-03-05
Applicant: SOLVAY
Inventor： BOURGEOIS LOUIS
Abstract: Process for the manufacture of sodium hydroxide, according to which an electrodialysis cell is used, water or an aqueous sodium hydroxide solution (10, 10') is introduced into a chamber (6, 6') of the cell, defined between a cationic membrane (2, 2') and an anionic face (8, 8') of a bipolar membrane (3, 3'), an aqueous sodium carbonate solution (11, 11') is introduced into a chamber (7, 7') defined between a cationic face (9, 9') of the bipolar membrane (3, 3') and another cationic membrane (2', 2''), an alkaline pH is maintained in the chamber (7, 7') which is supplied with the sodium carbonate solution (11, 11') and an aqueous sodium hydroxide solution (12, 12') is drawn off from the chamber (6, 6') containing the anionic face (8, 8') of the bipolar membrane (3, 3').
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17.发明专利
公开(公告)号：FR2630589A1
公开(公告)日：1989-10-27
申请号：FR8805580
申请日：1988-04-25
Applicant: SOLVAY
Inventor： BOURGEOIS LOUIS
Abstract: An alkaline anolyte 20 and an acidic catholyte 22 are used in a fuel cell 1 of the hydrogen/oxygen type, divided into anode 5 and cathode 6 compartments respectively by a cationic membrane 4. A plant for the production of chlorine and electricity uses the said cell 1 in combination with an electrolysis cell with a membrane 2, in which a solution of sodium chloride 15 is electrolysed to produce a solution of sodium hydroxide 20 which is employed for the anolyte of the cell, the catholyte 25 drawn from the cell being sent into the cell.
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公开(公告)号：FI65283B
公开(公告)日：1983-12-30
申请号：FI792508
申请日：1979-08-13
Applicant: SOLVAY
Inventor： NICOLAS EDGARD , BOURGEOIS LOUIS
Abstract: The invention relates to a process for the electrolytic production of hydrogen in an alkaline medium. The process consists in using a cathode, the active surface of which essentially consists of an oxide compound of the spinel type. The process is suitable, in particular, for the electrolysis of aqueous solutions of sodium chloride in cells with a permeable diaphragm.
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公开(公告)号：FI61208B
公开(公告)日：1982-02-26
申请号：FI760116
申请日：1976-01-20
Applicant: SOLVAY
Inventor： NICOLAS EDGARD , BOURGEOIS LOUIS
Abstract: A diaphragm cell for use in the electrolysis of an aqueous solution of alkali metal chloride. The cell is provided with a chamber divided by a diaphragm into an anode compartment having at least one anode therein and a cathode compartment having at least one cathode therein. The cathode has a catalytic surface different from the active surface of the anode. The cathode surface is made of a material which catalyses the decomposition of hypochlorite ions.
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20.发明专利
公开(公告)号：CA1112599A
公开(公告)日：1981-11-17
申请号：CA310492
申请日：1978-09-01
Applicant: SOLVAY
Inventor： NINANE LEON , BOURGEOIS LOUIS
Abstract: L'invention concerne un procédé de récupération sélective de chlore etd'anhydride carbonique d'un mélange gazeux. On soumet le mélange gazeux (13) à une combustion en présence d'hydrogène(15) de manière à convertir le chlore en chlorure d'hydrogène, on traîte le gas de combustion résultant (16) avec une solution aqueuse de chlorure de métal alcalin (18) pour y absorber le chlorure d'hydrogène, et on recueille un gaz résiduaire (20) contenant l'anhydride carbonique. L'invention a'applique notamment au traitement des mélanges gazeux résiduels de la liquéfaction du chlore produit par électrolyse d'une saumure.
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