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    • 1. 发明授权
    • Composite semipermeable membrane, production method thereof, and water treatment method using the same
    • 复合半透膜及其制造方法及使用其的水处理方法
    • US07081202B2
    • 2006-07-25
    • US10296836
    • 2002-03-08
    • Tomomi OharaMasahiko HiroseNaoki Kurata
    • Tomomi OharaMasahiko HiroseNaoki Kurata
    • B01D63/00B01D71/56B01D61/00
    • B01D67/0093B01D65/022B01D69/125B01D71/56B01D2321/168C02F1/441
    • A composite semipermeable membrance of the present invention comprises a thin film and a porous support membrane supporting the thin film, wherein the thin film includes polyamide based resin having a constituent unit with amide bond between diamine residue and di or tri carboxylic acid residue, in which nitrogen atom of the amide bond has a substituent of aromatic ring. A production method of this invention includes a contacting step of contacting the above composite semipermeable membrane with solution including an oxidizer. In addition, a water treatment method of this invention comprises a step of separating a raw water by a composite semipermeable membrane to obtain permeation water in which salt and/or organic substance is removed sufficiently in practical use, characterized in that the composite semipermeable membrane of this invention is used and a fungicide is added into the raw water.This invention provides a composite semipermeable membrane having practically permeability, and excellent desalting faculty and oxidizer resistance, a production method thereof, and water treatment method using the same.
    • 本发明的复合半透膜包括薄膜和支撑薄膜的多孔支撑膜,其中薄膜包括具有二胺残基和二或三羧酸残基之间具有酰胺键的构成单元的聚酰胺基树脂,其中 酰胺键的氮原子具有芳环的取代基。 本发明的制备方法包括使上述复合半透膜与包含氧化剂的溶液接触的接触步骤。 此外,本发明的水处理方法包括通过复合半透膜分离原水以获得其中盐和/或有机物质在实际应用中被充分除去的渗透水的步骤,其特征在于,所述复合半透膜 使用本发明,并将杀真菌剂加入原水中。 本发明提供一种具有实用渗透性,优异的脱盐剂和耐氧化剂性的复合半透膜及其制造方法以及使用其的水处理方法。
    • 3. 发明授权
    • Composite reverse osmosis membrane and process for preparing the same
    • 复合反渗透膜及其制备方法
    • US06723422B1
    • 2004-04-20
    • US09462109
    • 1999-12-30
    • Masahiko HiroseHiroki ItoTomomi Ohara
    • Masahiko HiroseHiroki ItoTomomi Ohara
    • B32B2000
    • B01D69/02B01D69/125B01D71/56B32B27/34Y10T428/249987Y10T428/249991Y10T428/249992
    • A composite reverse osmosis membrane is described, which includes a polyamide skin layer on a porous support, with a contact angle between the polyamide skin layer surface and water of 45° or less. The composite reverse osmosis membrane has a high salt rejection and also a high water permeability. This composite reverse osmosis membrane is produced by forming a polyamide skin layer on a porous support having the steps of: forming a layer on the porous support by coating a solution A including one or more compounds having at least two reactive amino groups; contacting the layer with a solution B comprising one or more polyfunctional acid halide compounds; and subsequently, contacting the layer with a solution C comprising the polyfunctional acid halide compound of a higher concentration than the solution C. The concentration of the polyfunctional acid halide compound in the solution C is preferably at least 1.2 times of the solution B.
    • 描述了一种复合反渗透膜,其包括多孔载体上的聚酰胺表层,聚酰胺表层与水之间的接触角为45°以下。 复合反渗透膜具有高的耐盐性和高透水性。 该复合反渗透膜是通过在多孔载体上形成聚酰胺表皮层而制成的,其具有以下步骤:通过涂覆包含一种或多种具有至少两个反应性氨基的化合物的溶液A在多孔载体上形成层; 使该层与包含一种或多种多官能酰卤化合物的溶液B接触; 并且随后使该层与包含比溶液C更高浓度的多官能酰卤化合物的溶液C接触。溶液C中多官能酰卤化合物的浓度优选为溶液B的至少1.2倍。
    • 4. 发明授权
    • Highly permeable composite reverse osmosis membrane
    • 高透性复合反渗透膜
    • US06171497B2
    • 2001-01-09
    • US08786628
    • 1997-01-21
    • Masahiko HiroseTomomi OharaMasaaki Ando
    • Masahiko HiroseTomomi OharaMasaaki Ando
    • B01D7156
    • B01D67/0093B01D69/125B01D2323/30
    • A module that can be practically used at a pressure of about 3 kgf/cm2 is obtained by treating a polyamide based reverse osmosis membrane with an oxidizing agent. A composite reverse osmosis membrane comprises a thin film which is a polyamide based skin layer obtained by polycondensation of a compound having two or more reactive amino groups and a polyfunctional acid halide compound having two or more reactive acid halide groups, and a microporous support for supporting the thin film. The polyamide based skin layer formed on the surface of the membrane has a mean roughness of 50 nm or more. The composite reverse osmosis membrane is treated with an oxidizing agent. A salt rejection of 99% or more and a flux of 1.5 m3/m2·day or more are obtained when evaluated by using a solution having pH 6.5 containing 500 ppm of sodium chloride at an operating pressure of 7.5 kgf/cm2 and a temperature of 25° C.
    • 通过用氧化剂处理聚酰胺类反渗透膜,可以在约3kgf / cm 2的压力下实际使用的模块。 复合反渗透膜包括通过具有两个或更多个反应性氨基的化合物和具有两个或更多个反应性酰卤基团的多官能酰卤化合物缩聚获得的聚酰胺基皮层的薄膜和用于支撑的多孔载体 薄膜。 形成在膜表面的聚酰胺类皮肤层的平均粗糙度为50nm以上。 复合反渗透膜用氧化剂处理。 当在7.5kgf / cm 2的操作压力下使用含有500ppm氯化钠的pH6.5的溶液进行评价时,可以获得99%以上的脱盐率和1.5m 3 / m 2·天以上的通量, 25°C
    • 5. 发明授权
    • Highly permeable composite reverse osmosis membrane and a reverse
osmosis membrane module using the same
    • 高透性复合反渗透膜和使用其的反渗透膜组件
    • US6024873A
    • 2000-02-15
    • US819326
    • 1997-03-18
    • Masahiko HiroseHiroki ItoTomomi Ohara
    • Masahiko HiroseHiroki ItoTomomi Ohara
    • B01D61/02B01D69/12B01D71/64B01D29/00
    • B01D69/125
    • The present invention provides a composite reverse osmosis membrane and a reverse osmosis membrane module using the same, having a high salt rejection, high water permeability, and a high rejection of organic substances such as isopropyl alcohol, which can be used to remove organic substances as well as ionic substances with suitable efficiency and economy. The highly permeable composite reverse osmosis membrane of the invention can be produced by adding alcohols or ethers or the like having a solubility parameter of 8-14 (cal/cm.sup.3).sup.1/2 to the solution containing at least one compound selected from the group consisting of a compound having two or more reactive amino groups and a polyfunctional acid halide having two or more reactive acid halide groups which is used when conducting the polycondensation of a compound having two or more reactive amino groups and a polyfunctional acid halide having two or more reactive acid halide groups on a microporous support.
    • 本发明提供一种复合反渗透膜和使用该复合反渗透膜组件的反渗透膜组件,其具有高的耐盐析性,高透水性,以及异丙醇等有机物质的高排斥性,可用于除去有机物质作为 以及具有合适效率和经济性的离子物质。 本发明的高渗透性复合反渗透膜可以通过将溶解度参数为8-14(cal / cm 3)+ E,fra 1/2 + EE的醇或醚等加入到含有至少一种 选自具有两个或更多个反应性氨基的化合物和具有两个或多个反应性酰卤基团的多官能酰卤的化合物,其在进行具有两个或多个反应性氨基的化合物的缩聚时使用的多官能酸 在微孔载体上具有两个或多个反应性酰卤基团的卤化物。
    • 9. 发明授权
    • Highly permeable composite reverse osmosis membrane, method of producing
the same
    • 高透性复合反渗透膜,其生产方法
    • US5843351A
    • 1998-12-01
    • US702383
    • 1996-08-14
    • Masahiko HiroseHiroki ItoMasatoshi MaedaKazuo Tanaka
    • Masahiko HiroseHiroki ItoMasatoshi MaedaKazuo Tanaka
    • B01D61/02B01D67/00B01D69/00B01D69/12B29D33/48
    • B01D67/0088B01D61/022B01D69/00B01D69/12B01D69/125
    • This invention provides a composite reverse osmosis membrane having a polyamide type skin layer whose average surface roughness is at least 55 nm, and the polyamide type skin layer comprises the reaction product of a compound having amino groups and polyfunctional acid halide compound having acid halide groups. The composite reverse osmosis membrane of this invention is superior in salt rejection and water permeability. A polymer film is formed on a supporting film by contacting a solution containing e.g., m-phenylenediamine with a porous polysulfone supporting film so as to form a layer of the solution on the supporting film, then contacting the film with a solution of trimesic acid chloride and holding the film in a hot air dryer so that a polymer film is formed on the supporting film. The surface of the polyamide type skin layer can also be treated with quaternary ammonium salt and coated with a crosslinked layer of an organic polymer having positively-charged groups. Raw liquid is transmitted from a raw liquid tank to a membrane module for the first stage through a first transmission pump, and the first stage of reverse osmosis treatment is carried out. The composite reverse osmosis membrane coated with the crosslinked layer is used when another reverse osmosis treatment is carried out by using another membrane module for the second stage.
    • 本发明提供一种具有平均表面粗糙度为55nm以上的聚酰胺型表层的复合反渗透膜,聚酰胺型表皮层包含具有氨基的化合物与具有酰卤基的多官能酰卤化合物的反应产物。 本发明的复合反渗透膜的耐盐析性和透水性优异。 通过使含有例如间苯二胺的溶液与多孔聚砜负载膜接触,在支持膜上形成聚合物膜,以在支撑膜上形成溶液层,然后将该膜与均苯三甲酸 并将膜保持在热空气干燥器中,使得在支撑膜上形成聚合物膜。 聚酰胺型表皮层的表面也可以用季铵盐处理,并涂布有具有带正电荷基团的有机聚合物的交联层。 原料液体通过第一传动泵从原液槽传送到第一级的膜组件,并进行第一阶段的反渗透处理。 当通过使用用于第二阶段的另一个膜组件进行另一个反渗透处理时,使用涂覆有交联层的复合反渗透膜。
    • 10. 发明授权
    • Highly permeable composite reverse osmosis membrane, method of producing
the same, and method of using the same
    • 高透性复合反渗透膜及其制造方法及其使用方法
    • US5614099A
    • 1997-03-25
    • US572900
    • 1995-12-18
    • Masahiko HiroseHiroki ItoMasatoshi MaedaKazuo Tanaka
    • Masahiko HiroseHiroki ItoMasatoshi MaedaKazuo Tanaka
    • B01D61/02B01D67/00B01D69/00B01D69/12B01D61/00
    • B01D67/0088B01D61/022B01D69/00B01D69/12B01D69/125
    • This invention provides a composite reverse osmosis membrane having a polyamide type skin layer whose average surface roughness is at least 55 nm, and the polyamide type skin layer comprises the reaction product of a compound having amino groups and polyfunctional acid halide compound having acid halide groups. The composite reverse osmosis membrane of this invention is superior in salt rejection and water permeability. A polymer film is formed on a supporting film by contacting a solution containing e.g., m-phenylenediamine with a porous polysulfone supporting film so as to form a layer of the solution on the supporting film, then contacting the film with a solution of trimesic acid chloride and holding the film in a hot air dryer so that a polymer film is formed on the supporting film. The surface of the polyamide type skin layer can also be treated with quaternary ammonium salt and coated with a crosslinked layer of an organic polymer having positively-charged groups. Raw liquid is transmitted from a raw liquid tank to a membrane module for the first stage through a first transmission pump, and the first stage of reverse osmosis treatment is carried out. The composite reverse osmosis membrane coated with the crosslinked layer is used when another reverse osmosis treatment is carried out by using another membrane module for the second stage.
    • 本发明提供一种具有平均表面粗糙度为55nm以上的聚酰胺型表层的复合反渗透膜,聚酰胺型表皮层包含具有氨基的化合物与具有酰卤基的多官能酰卤化合物的反应产物。 本发明的复合反渗透膜的耐盐析性和透水性优异。 通过使含有例如间苯二胺的溶液与多孔聚砜负载膜接触,在支撑膜上形成聚合物膜,以在支撑膜上形成溶液层,然后将该膜与均苯三甲酸 并将膜保持在热空气干燥器中,使得在支撑膜上形成聚合物膜。 聚酰胺型表皮层的表面也可以用季铵盐处理,并涂布有具有带正电荷基团的有机聚合物的交联层。 原料液体通过第一传动泵从原液槽传送到第一级的膜组件,并进行第一阶段的反渗透处理。 当通过使用用于第二阶段的另一个膜组件进行另一个反渗透处理时,使用涂覆有交联层的复合反渗透膜。