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31. 发明专利

AU7585374A ELECTROLYTIC ELECTRODIALYTIC AND CHEMICAL MANUFACTURE OF CHLORINE DIOXIDE 未知
公开(公告)号：AU7585374A
公开(公告)日：1976-06-03
申请号：AU7585374
申请日：1974-11-28
申请人： HOOKER CHEMICALS PLASTICS CORP
发明人： HARKE CYRIL J , ENG JEFFREY D
IPC分类号： C25B1/46 , B01D61/44 , B01D61/48 , B01D61/50 , B01D61/54 , C01B11/02 , C01D5/02 , C08J5/22 , C25B1/34 , C01B11/26 , C01D1/06 , B01K3/10 , B01D13/02
摘要： Chlorine dioxide, chlorine, alkali metal hydroxide, alkali metal sulfate and hydrogen are made from alkali metal chloride, alkali metal chlorate, hydrogen chloride, sulfuric acid and water in an electrolytic-electrodialytic cell containing at least seven compartments and having alternating anion-active and cation-active permselective membranes separating the compartments. By feeding particular reactants or mixtures thereof to certain compartments from which component ions selectively diffuse to other compartments under influence of the applied voltage, reactions take place in the compartments, selectively yielding chlorine dioxide and chlorine mixtures, alkali metal sulfate, hydrogen, substantially chloride-free alkali metal hydroxide, spent sulfuric acid from a different compartment than that of the alkali metal sulfate and spent alkali metal chloride and chlorate mixtures.

32. 发明专利

FI60577B 未知
公开(公告)号：FI60577B
公开(公告)日：1981-10-30
申请号：FI752923
申请日：1975-10-20
申请人： HOOKER CHEMICALS PLASTICS CORP
发明人： ENG JEFFREY D
IPC分类号： C25B1/46 , C25B13/00 , C25B15/00

33. 发明专利

CA1058565A LENGTHENING ANODE LIFE IN ELECTROLYTIC CELL HAVING MOLDED BODY 未知
公开(公告)号：CA1058565A
公开(公告)日：1979-07-17
申请号：CA242381
申请日：1975-12-19
申请人： HOOKER CHEMICALS PLASTICS CORP
发明人： ENG JEFFREY D , COOK EDWARD H JR , FIGUERAS WILFREDO
IPC分类号： C25B1/46 , C25B9/19 , C25B9/00
摘要： LENGHTENING ANODE LIFE IN ELECTROLYTIC CELL HAVING MOLDED BODY A molded electrolytic cell body or frame fro housing electrodes and membrane has a passageway therein communicating a brine feed header or manifold or an analyte discharge header with the anolyte compartment of the cell, through which passageway a conductor of material resistant to electrolytic attack is passed to connect the liquid in the brine feed or discharge header with the anode. The conductor acts as a target anode and inhibits electrolytic damage to the anode, thereby lengthening its life.

34. 发明专利

CA1043736A ELECTROLYTIC PROCESS FOR MANUFACTURING CHLORINE DIOXIDE, HYDROGEN PEROXIDE, CHLORINE, LI METAL HYDROXIDE AND HYDROGEN 未知
公开(公告)号：CA1043736A
公开(公告)日：1978-12-05
申请号：CA216840
申请日：1974-12-20
申请人： HOOKER CHEMICALS PLASTICS CORP
发明人： HARKE CYRIL J , ENG JEFFREY D
IPC分类号： B01D61/44 , B01D61/48 , B01D61/50 , B01D61/54 , C01B15/03 , C08J5/22 , C25B1/26 , C25B1/28 , C25B1/46 , C25B1/00
摘要： Chlorine dioxide, hydrogen peroxide, chlorine, alkali metal hydroxide and hydrogen are produced from alkali metal chloride, alkali. metal chlorate, sulfuric acid and water, utilizing an electrolytic cell having anode and cathode compartments separated by two intermediate buffer compartments, the boundaries between the anode and cathode compartments and the buffer compartments being of cation-active permselective membranes which are resistant to attack by the medium And the buffer compartments being separated by a suitable anion-active permselective membrane. On electrolysis, with sulfuric acid fed to the anode compartment, chloride and chlorate fed to the buffer compartment adjacent to the cathode compartment and water fed to the cathode compartment there are produced hydrogen and alkali metal hydroxide in the cathode compartment,chorine dioxide and chlorine in the buffer compartment adjacent to the anode compartment and persulfuric acid in the anode compartment. The persulfuric acid is hydrolyzed to produce hydrogen peroxide. Hydrogen peroxide, alkali metal hydroxide, chlorine and chlorine dioxide are useful pulp mill chemicals especially suited for pulping wood and bleaching wood pulp.

35. 发明专利

NO138665B 未知
公开(公告)号：NO138665B
公开(公告)日：1978-07-10
申请号：NO744121
申请日：1974-11-15
申请人： HOOKER CHEMICALS PLASTICS CORP
发明人： COOK EDWARD H JR , MARKS GERALD R , TOKAWA DANIEL T , MENTZ BERNARDUS J , ENG JEFFREY D
IPC分类号： C08J5/22 , C25B1/46 , C25B9/19 , C25B13/08
摘要： 1435477 Electrolysis anode with diaphragm HOOKER CHEMICALS & PLASTICS CORP 31 Oct 1974 [19 Nov 1973] 47252/74 Heading C7B An anode unit for a diaphragm cell comprises a porous anode having affixed to at least one face thereof a gas and liquid impermeable cationic permselective membrane made of a hydrolyzed copolymer of a perfluorocarbon and a fluorosulphonated perfluorovinyl ether and/or of a sulphostyrenated perfluoro ethylene-propylene copolymer. The membrane may be clamped or glued in position and may be pre-stretched in hot water and dried under tension before fixing. It may be supported on a PTFE cloth and SO 3 H groups therein may be hydrolyzed or chemically converted to SO 2 NH 2 after fabrication. A copolymer of TFE and is specified. The anode may be a mesh or screen of graphite or a valve metal optionally coated with one or more Pt metals or their oxides optionally with other oxides, e.g. R u O 2 with TiO 2 . It may have a core of Al, Cu or steel. Fe, graphite or steel cathodes are specified. The cell may have one or more intermediate compartments bounded by membranes as defined above and affixed on the cathode surface and/or between the anode and cathode. The anode compartment may be bounded on both sides by an anode unit as above with clamps holding the membrane stretched in place. Chlor-alkali production and HCl electrolysis are specified.

36. 发明专利

FI752699A 未知
公开(公告)号：FI752699A
公开(公告)日：1976-04-18
申请号：FI752699
申请日：1975-09-26
申请人： HOOKER CHEMICALS PLASTICS CORP
发明人： ENG JEFFREY D , HARKE CYRIL J , BOSA PRIMO , FIGUERAS WILFREDO E
IPC分类号： C25B9/19 , F16J15/18 , C25B
摘要： A seal for preventing passage of fluid through an opening in an electrolytic cell wall through which a conductor for carrying electricity to or from a cell electrode passes includes as elements thereof a portion of the cell wall opening which is tapered so as to be larger at the outer part of the wall than at the inner part, silicone rubber in the narrower tapered opening part, an electrolyte-resistant rubber, such as neoprene, in the wider tapered opening part and means for pressing such rubber against the silicone rubber so as to help seal the silicone rubber against the tapered cell wall and the conductor. Preferably, the seal is a gas-tight seal and prevents hydrogen from escaping into the atmosphere from the catholyte compartment of an electrolytic cell for the electrolysis of brine. Such a cell is preferably an externally connected (by conductors) bipolar cell but the invention is adaptable for use in sealing off openings in the cell walls between the electrolyte compartments of internally connected bipolar cells and for monopolar electrolytic cells too.

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