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公开(公告)号：US6059944A
公开(公告)日：2000-05-09
申请号：US124441
申请日：1998-07-29
CPC分类号： C25B13/04
摘要： A method of forming a liquid-permeable asbestos-free diaphragm on a cathode structure is described. The method comprises forming a liquid-permeable diaphragm base mat comprising fibrous synthetic polymeric material, e.g., polytetrafluoroethylene, on a cathode structure, e.g., a foraminous cathode; drawing a liquid slurry comprising an aqueous medium containing a wetting amount of surfactant and water-insoluble inorganic particulate material through the base mat, thereby to deposit said inorganic particulate material on and within the pre-formed base mat; and drying the resultant diaphragm at temperatures less than the temperature at which decomposition by-products of the surfactant are formed. The liquid slurry is substantially free of alkali metal halide and alkali metal hydroxide; and the inorganic particulate material comprises at least one oxide or silicate of a valve metal, e.g., zirconium oxide, having a median diameter of 0.1 to 5 micrometers, and optionally clay mineral and/or hydrous oxide of zirconium and/or magnesium. In a further embodiment of the present invention, the base mat is dried prior to deposition of the inorganic particulate material.
摘要翻译： 描述了在阴极结构上形成液体渗透性无石棉隔膜的方法。 该方法包括在阴极结构（例如多孔阴极）上形成包含纤维状合成聚合物材料（例如聚四氟乙烯）的液体可渗透膜基底垫; 拉制包含含有润湿量的表面活性剂和水不溶性无机颗粒材料的水性介质的液体浆料通过基垫，从而将所述无机颗粒材料沉积在预成型的基垫上和内; 并且在低于形成表面活性剂分解副产物的温度的温度下干燥所得的隔膜。 液体浆料基本上不含碱金属卤化物和碱金属氢氧化物; 并且无机颗粒材料包含至少一种中等直径为0.1至5微米的阀金属例如氧化锆的氧化物或硅酸盐，以及任选的锆和/或镁的粘土矿物和/或含氧化合物。 在本发明的另一个实施方案中，在沉积无机颗粒材料之前将基底垫干燥。
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公开(公告)号：US06296745B1
公开(公告)日：2001-10-02
申请号：US09560598
申请日：2000-04-28
IPC分类号： C25C706
摘要： A method of operating a chlor-alkali electrolytic cell comprising a catholyte compartment containing a cathode, an anolyte compartment containing an anode, and a liquid-permeable diaphragm partitioning the catholyte and anolyte compartments, is described. The method comprises adding water-insoluble inorganic particulate material, e.g., clay mineral, and alkali metal polyphosphate, e.g., tetrasodium pyrophosphate, to the anolyte compartment of the electrolytic cell while the cell is operating. The water-insoluble inorganic particulate material and alkali metal polyphosphate may be added to the anolyte compartment in the form of an aqueous slurry.
摘要翻译： 描述了一种操作氯碱电解池的方法，该电解池包括含有阴极的阴极电解室，含有阳极的阳极电解液室和分隔阴极电解液和阳极电解液室的液体可透过隔膜。 该方法包括在细胞运行时将诸如粘土矿物的水不溶性无机颗粒材料和焦磷酸四钠的碱金属多磷酸盐加入到电解池的阳极电解液室中。 水不溶性无机颗粒材料和碱金属多磷酸盐可以以含水浆料的形式加入到阳极电解液室中。
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公开(公告)号：US06299939B1
公开(公告)日：2001-10-09
申请号：US09560599
申请日：2000-04-28
IPC分类号： B05D500
CPC分类号： C25B13/04
摘要： A method of forming a liquid-permeable asbestos-free diaphragm for use in an electrolytic cell (e.g., a chlor-alkali cell) is described. The method comprises, (a) forming a liquid-permeable diaphragm base mat of asbestos-free material on a foraminous structure (e.g., a foraminous cathode structure); (b) drawing through the base mat a topcoat slurry comprising an aqueous medium (e.g., deionized water), water-insoluble inorganic particulate material (e.g., attapulgite clay) and alkali metal polyphosphate (e.g., tetrasodium pyrophosphate decahydrate); and (c) drying the formed diaphragm. The inorganic material of the topcoat slurry is deposited on and within the diaphragm base mat.
摘要翻译： 描述了形成用于电解槽（例如氯碱池）中的透液性无石棉隔膜的方法。 该方法包括：（a）在多孔结构（例如，多孔阴极结构）上形成无石棉材料的透液膜基垫; （b）通过基底垫将包含水性介质（例如去离子水），水不溶性无机颗粒材料（例如绿坡缕石粘土）和碱金属多磷酸盐（例如焦磷酸四钠十水合物）的面漆浆液拉伸; 和（c）干燥所形成的隔膜。 面漆浆料的无机材料沉积在隔膜基垫上和内。
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公开(公告)号：US5567298A
公开(公告)日：1996-10-22
申请号：US841898
申请日：1992-02-25
摘要： Disclosed is an improved method of making chlorine and alkali metal hydroxide, e.g., sodium hydroxide, in an electrolytic cell of the type wherein a liquid permeable diaphragm separates the anolyte from the catholyte, said method comprising adding to the anolyte, while the cell is operating, a hydrated aluminum silicate containing clay mineral, followed by lowering the pH of the anolyte by the addition of an inorganic acid and maintaining the anolyte at said lowered pH for a time sufficient to restore the cell to a predetermined current efficiency.
摘要翻译： 公开了一种在电解池中制备氯和碱金属氢氧化物例如氢氧化钠的改进方法，其中液体可透过的隔膜将阳极电解液与阴极电解液分开，所述方法包括在电解池运行时向阳极电解液中加入 ，含有水合硅酸铝的粘土矿物，然后通过加入无机酸降低阳极电解液的pH，并将阳极电解液在所述降低的pH下保持足以将电池恢复到预定电流效率的时间。
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公开(公告)号：US4315805A
公开(公告)日：1982-02-16
申请号：US120217
申请日：1980-02-11
CPC分类号： C08J5/2237 , C25B1/46 , C25B9/08 , C08J2327/12
摘要： Disclosed is a solid polymer electrolyte electrolytic cell, e.g., for chlorine production, where the electrodes are in compressive contact with and removable from the permionic membrane. For a preferred exemplification the anode is in compressive contact with and removable from the permionic membrane, and the cathode is bonded to the permionic membrane.
摘要翻译： 公开了一种固体聚合物电解质电解质电池，例如用于氯生产，其中电极与永久膜压缩接触并且可从其移除。 对于优选的示例，阳极与永久膜压缩接触并且可从其移除，并且阴极与永久膜结合。
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公开(公告)号：US07465412B2
公开(公告)日：2008-12-16
申请号：US11065231
申请日：2005-02-24
IPC分类号： C01B11/06
CPC分类号： C11D3/3953
摘要： Calcium hypochlorite compositions that are classified as a Packing Group III Division 5.1 oxidizer material or as a non-Division 5.1 oxidizer material are described. In one embodiment, the compositions comprise an admixture of particulate calcium hypochlorite and particulate metaboric acid. The calcium hypochlorite is present in the composition in an amount and is of a concentration such that the composition would be classified as a Packing Group II Division 5.1 oxidizer in the absence of said particulate metaboric acid. Other embodiments described are solid shaped articles, e.g., tablets, comprising the described calcium hypochlorite-metaboric acid composition.
摘要翻译： 描述了被分类为第III组5.1氧化剂材料或作为非5.1级氧化剂材料的次氯酸钙组合物。 在一个实施方案中，组合物包含颗粒次氯酸钙和颗粒偏碳酸的混合物。 次氯酸钙以组合物的量存在，并且其浓度使得组合物在不存在所述颗粒偏碳酸的情况下将其分类为包装II类5.1部分氧化剂。 所描述的其它实施方案是固体成形制品，例如包含所述次氯酸钙 - 偏硼酸组合物的片剂。
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公开(公告)号：US5192401A
公开(公告)日：1993-03-09
申请号：US637110
申请日：1991-01-03
IPC分类号： C25B13/04
CPC分类号： C25B13/04
摘要： A liquid permeable diaphragm for use in an electrolytic chlor-alkali cell, the diaphragm being made of fibrous material and having particulate zirconia deposited in the interstices of the fibrous matrix, prior to installing the diaphragm in the cell. Also described is a zirconia impregnated fibrous diaphragm having a zirconia topcoating applied to the anode face thereof.
摘要翻译： 一种用于电解氯碱电池的透液隔膜，隔膜由纤维材料制成，并且在将隔膜安装在电池中之前，将颗粒状氧化锆沉积在纤维基质的间隙中。 还描述了一种氧化锆浸渍的纤维隔膜，其具有施加到其阳极面的氧化锆表面涂层。
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8.发明授权Electrolytic cell utilizing a transition metal-graphite intercalation compound cathode 失效电解池利用过渡金属 - 石墨插层复合阴极
公开(公告)号：US4329216A
公开(公告)日：1982-05-11
申请号：US250821
申请日：1981-04-03
申请人： Donald W. DuBois
发明人： Donald W. DuBois
CPC分类号： C25B9/00 , C25B1/46 , C25B11/0478
摘要： Disclosed is a method of electrolyzing an alkali metal chloride brine where the cathode is an intercalation compound of graphite and a transition metal. Also disclosed is a solid polymer electrolyte having as its cathode an intercalation compound of graphite and a transition metal, and an electrolytic cell having as its cathode an intercalation compound of graphite and a transition metal.
摘要翻译： 公开了一种电解碱金属氯化物盐水的方法，其中阴极是石墨和过渡金属的插层化合物。 还公开了作为其阴极作为其石墨和过渡金属的插层化合物的固体聚合物电解质，以及具有作为其阴极的石墨和过渡金属的插层化合物的电解池。
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公开(公告)号：US5030403A
公开(公告)日：1991-07-09
申请号：US492274
申请日：1990-03-07
CPC分类号： B29B9/08 , D01D5/11 , D01D5/40 , Y10S264/47
摘要： This invention relates to a method of making thermoplastic polymeric fibrils by passing an aqueous suspension of powdered thermoplastic polymeric material at high pressure through a two-stage valve assembly of the type conventionally used in liquid homogenization.
摘要翻译： 本发明涉及一种制备热塑性聚合物原纤维的方法，该方法是将粉末状热塑性聚合物材料的水性悬浮液通过常规用于液体均质化的两级阀门组件。
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公开(公告)号：US4680101A
公开(公告)日：1987-07-14
申请号：US926688
申请日：1986-11-04
CPC分类号： C25B13/04 , Y10T428/3154 , Y10T428/31544 , Y10T428/31652 , Y10T442/2926
摘要： A polymeric metal oxide such as polytitanic acid, polyzirconic acid or polysilicic acid is incorporated into a liquid permeable diaphragm formed of, e.g., asbestos, asbestos and a polymer resin, polytetrafluoroethylene, or a major amount polyfluorocarbon fibrils and a minor amount perfluorinated ion exchange material. Optionally, the diaphragm may also include inorganic materials such as zirconium oxide, titanium dioxide, aluminum oxide, talc, barium sulfate or potassium titanate, and hydrous inorganic gels such as magnesium oxide gel, zirconium oxide gel, titanium oxide gel or zirconyl phosphate gel.
摘要翻译： 将诸如聚钛酸，聚锆酸或聚硅酸的聚合物金属氧化物引入由例如石棉，石棉和聚合物树脂，聚四氟乙烯或主要量的多氟化碳原纤维和少量全氟化离子交换材料形成的透液膜中 。 任选地，隔膜还可以包括无机材料，例如氧化锆，二氧化钛，氧化铝，滑石，硫酸钡或钛酸钾，以及含水无机凝胶如氧化镁凝胶，氧化锆凝胶，氧化钛凝胶或磷酸二氢锆凝胶。
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