Method for preparation of graft polymeric membranes
    91.
    发明授权
    Method for preparation of graft polymeric membranes 失效
    接枝聚合物膜的制备方法

    公开(公告)号:US4605685A

    公开(公告)日:1986-08-12

    申请号:US648018

    申请日:1984-09-06

    Abstract: A method for the preparation of a graft polymer membrane comprising an inactive polymer film having TFS as a graft chain. The inactive polymer film is irradiated with ionizing radiation, and the resulting irradiated film is graft-polymerized by contacting said film with TFS.This product may then be sulfonated to provide a cation exchange membrane; or the obtained graft polymer may be haloalkylated, and quarternary aminated to provide an anion exchange membrane; or the graft polymer membrane may be used to prepare a weakly acidic cation exchange membrane by substituting at least part of the benzene rings of the graft polymer by one of the groups among hydroxyl groups, carboxylic acid groups, phosphoric acid groups and phosphorous acid groups.The polymeric membrane products are also disclosed and claimed.

    Abstract translation: 一种制备接枝聚合物膜的方法,包括具有TFS作为接枝链的无活性聚合物膜。 用电离辐射照射无活性聚合物膜,通过使所述膜与TFS接触将得到的照射膜接枝聚合。 然后将该产物磺化以提供阳离子交换膜; 或者所获得的接枝聚合物可以是卤代烷基化的,并且被季铵化以提供阴离子交换膜; 或者接枝聚合物膜可用于通过用羟基,羧酸基,磷酸基和亚磷酸基中的一个基团取代接枝聚合物的至少一部分苯环来制备弱酸性阳离子交换膜。 聚合物膜产品也被公开并要求保护。

    Ion exchange membranes pre-expanded with di- and poly ether-glycols
    92.
    发明授权
    Ion exchange membranes pre-expanded with di- and poly ether-glycols 失效
    用二 - 和多醚 - 乙二醇预膨胀的离子交换膜

    公开(公告)号:US4595476A

    公开(公告)日:1986-06-17

    申请号:US634779

    申请日:1984-07-26

    Inventor: Thomas C. Bissot

    CPC classification number: C08J5/2293 C08J2327/12

    Abstract: Pre-swelled ion exchange membranes formed from one or more layers of fluorinated polymer having carboxylic or sulfonic acid functional groups and which polymer contains about 8 to 30% by weight of a swelling agent of the formula HO(CH.sub.2 CHYO).sub.n H where Y=H or CH.sub.3 and n=2, 3 or 4 are disclosed. Also disclosed are processes for preparing these membranes, electrochemical cells utilizing these membranes, and methods of preparing said cells for use in chloralkali processes.

    Abstract translation: 由一层或多层具有羧酸或磺酸官能团的氟化聚合物形成的预膨胀离子交换膜,该聚合物含有约8至30重量%的式HO(CH 2 CHYO)n H的溶胀剂,其中Y = H或 CH3和n = 2,3或4。 还公开了制备这些膜的方法,利用这些膜的电化学电池,以及制备用于氯碱工艺的所述细胞的方法。

    Electrolytic cell having improved inter-electrode spacing means
    93.
    发明授权
    Electrolytic cell having improved inter-electrode spacing means 失效
    具有改善的电极间隔装置的电解槽

    公开(公告)号:US4568439A

    公开(公告)日:1986-02-04

    申请号:US617578

    申请日:1984-06-05

    CPC classification number: C25B9/06 C25B13/00

    Abstract: An electrolytic cell is described which has a spacing means positioned between the anode and cathode faces. The present spacing means comprises a plurality of longitudinally elongated, electrically non-conductive spacers fabricated of a chemically resistant material being inert to the conditions existing within an operating electrolytic cell. The present spacers are positioned on the face portion of a foraminous anode. The spacers are secured on the anode face by extention of a portion of the spacer through an opening in the anode and are secured at the back portion of the anode.

    Abstract translation: 描述了具有位于阳极和阴极面之间的间隔装置的电解池。 本间隔装置包括多个纵向细长的非导电间隔物,其由对操作电解槽内存在的条件呈惰性的耐化学腐蚀材料制成。 本发明的间隔物位于多孔阳极的表面部分上。 间隔件通过阳极中的开口的间隔物的一部分的延伸固定在阳极面上,并固定在阳极的后部。

    Nickel oxide based diaphragm
    94.
    发明授权
    Nickel oxide based diaphragm 失效
    基于氧化镍的隔膜

    公开(公告)号:US4559124A

    公开(公告)日:1985-12-17

    申请号:US613877

    申请日:1984-05-24

    CPC classification number: C25B13/04

    Abstract: The invention concerns a NiO-based ceramic oxide diaphragm for the alkaline water electrolysis. The diaphragm, in accordance with the invention, contains 0.5 to 10% by weight (estimated as Ti based on the oxide mass) of titanium oxide in the porous NiO layer. Diaphragms of this type are obtained, in particular, by the oxidative sintering of a mass of nickel powder which has been applied under pressure to a nickel support, especially one consisting of nickel wire gauze. In the process the titanium is in the form of titanium metal, titanium oxide or a titanium compound which is added to the initial nickel powder. The titanium is present in the form of its oxide after the oxidation sintering treatment. In an alternative embodiment of the process, an already sintered porous mass of nickel or nickel oxide can be impregnated with a titanium compound and calcined to convert the titanium compound to its oxide.

    Abstract translation: 本发明涉及一种用于碱性水电解的NiO基陶瓷氧化膜。 根据本发明的隔膜在多孔NiO层中含有0.5至10重量%(基于氧化物质量计算为Ti)氧化钛。 特别是通过在压力下施加到镍载体上的镍粉末的氧化烧结,特别是由镍丝网组成的膜,可获得这种类型的膜片。 在该过程中,钛是钛金属,氧化钛或钛化合物的形式,加入到初始镍粉中。 在氧化烧结处理后,钛以其氧化物的形式存在。 在该方法的替代实施方案中,已经烧结的镍或氧化镍多孔体可以用钛化合物浸渍并煅烧以将钛化合物转化成其氧化物。

    Unreinforced membrane, electrochemical cell and electrolysis process
    95.
    发明授权
    Unreinforced membrane, electrochemical cell and electrolysis process 失效
    非增强膜,电化学电池和电解过程

    公开(公告)号:US4539084A

    公开(公告)日:1985-09-03

    申请号:US473963

    申请日:1983-03-10

    Abstract: An unreinforced ion exchange membrane which comprises fluorinated polymer which has carboxylic functional groups, which has a hydrogen bubble release layer on the cathode-facing side thereof, and which has channels open to the outer surface of the anode-facing side thereof, is described. Precursor membrane, which may contain partially embedded sacrificial members, and from which the unreinforced ion exchange membrane is made, is also described. The unreinforced ion exchange membrane can be used to separate the compartments of a chloralkali cell, and such a cell operates at low voltage, high current efficiency, and low power consumption.

    Abstract translation: 描述了一种非增强离子交换膜,其包含具有羧酸官能团的氟化聚合物,其具有在其面向其阴极侧的氢气泡分离层,并且具有通向其面向阳极侧的外表面的通道。 还描述了可以包含部分嵌入的牺牲构件的前体膜,并且由其制造未增强的离子交换膜。 未加强的离子交换膜可以用于分离氯碱槽的隔室,并且这种电池在低电压,高电流效率和低功耗下工作。

    Treatment of ion-exchange membrane
    97.
    发明授权
    Treatment of ion-exchange membrane 失效
    离子交换膜的处理

    公开(公告)号:US4523984A

    公开(公告)日:1985-06-18

    申请号:US501759

    申请日:1983-06-06

    CPC classification number: C08J5/2243 C08J2367/02

    Abstract: Treating a sheet of ion-exchange membrane in order to decrease the voltage of operation of an electrolytic cell containing the membrane by swelling the membrane in a liquid medium, the extent of swelling on the anode side being greater than the extent of swelling on the cathode side, and the extent of swelling on the anode side being greater than that effected by contacting the membrane with the electrolyte to be electrolyzed.

    Abstract translation: 处理一片离子交换膜,以通过在液体介质中溶胀膜来降低含有膜的电解槽的操作电压,阳极侧的膨胀程度大于阴极上膨胀的程度 并且阳极侧的膨胀程度大于通过使膜与要电解的电解质接触而实现的程度。

    Process for the production of a diaphragm for electrolytic cells
    99.
    发明授权
    Process for the production of a diaphragm for electrolytic cells 失效
    用于生产电解槽隔膜的方法

    公开(公告)号:US4475985A

    公开(公告)日:1984-10-09

    申请号:US435551

    申请日:1982-10-21

    CPC classification number: C25B13/06 C25B13/00

    Abstract: The process relates to the formation of diaphragms, for example those used for alkali chloride electrolysis in an aqueous solution. The formation of a layer-type diaphragm, accreted on a hollow diaphragm support from a slurry having a high solids content of diaphragm material, is made uniform.During the accretion step, the diaphragm support is periodically lifted and lowered in the slurry (frequency 0.1-10 min.sup.-1 ; amplitude 10-100 cm; velocity 2-20 cm/sec); its topside, at the upper reversal point of the oscillating motion, has a certain spacing (10-25 cm) from the constantly measured height of the level of slurry in the accretion tank and its underside cannot reach below a minimum distance (30 cm) from the bottom of the basin. The suction pressure of the slurry through the hollow diaphragm support is maintained at a constant value and is controlled (10-500 mbar below the atmospheric pressure of the surroundings).The accretion step can be subdivided into time intervals between which the frequency and the suction pressure are increased stepwise.The electrolysis process becomes more economical with the use of the diaphragm produced according to this invention.

    Abstract translation: 该方法涉及隔膜的形成,例如用于在水溶液中碱性氯化物电解的膜。 由具有高固体含量的隔膜材料的浆料形成的中空隔膜支架上的层状隔膜的形成是均匀的。 在积垢步骤中,隔膜支撑件在浆料中周期性地升高和降低(频率0.1-10分钟-1;振幅10-100厘米;速度2-20厘米/秒); 其上部位于振荡运动的上部反转点处,与吸入池中浆料水平的不断测量的高度具有一定的间隔(10-25厘米),其下侧不能达到最小距离(30厘米) 从盆地的底部。 通过中空隔膜支撑件的浆料的吸入压力保持在恒定值,并被控制(低于环境的大气压力10-500mbar)。 吸积步骤可以细分为频率和吸入压力逐步增加的时间间隔。 通过使用根据本发明制造的隔膜,电解过程变得更加经济。

    Cladding cathodes of electrolytic cell with diaphragm or membrane
    100.
    发明授权
    Cladding cathodes of electrolytic cell with diaphragm or membrane 失效
    用隔膜或隔膜包覆电解槽的阴极

    公开(公告)号:US4428813A

    公开(公告)日:1984-01-31

    申请号:US353421

    申请日:1982-03-01

    Applicant: Colin Stanier

    Inventor: Colin Stanier

    CPC classification number: C25B13/00 C25B9/00

    Abstract: A method of cladding a separator, that is a diaphragm or membrane, to a cathode box of the pocket type comprising a plurality of foraminate walls, the method comprising positioning a separator in the form of a sleeve in each pocket of the cathode box with the ends of the sleeves projecting beyond the ends of the pockets and heat sealing by means of radio frequency heating those parts of the sleeves projecting beyond the ends of adjacent pockets, either to each other or to additional heat sealable material. Also a cathode box clad with separator, and an electrolytic cell comprising a cathode box clad with separator.

    Abstract translation: 将隔膜(即膜片或隔膜)包覆在包括多个有孔壁的袋型阴极盒中的方法,所述方法包括将阴极盒的每个袋中的套筒形式的隔膜定位成具有 袖子的端部突出超过口袋的端部,并且通过射频加热套筒的部分突出超过相邻袋的端部彼此或附加的可热封材料进行热封。 还有一种阴极盒,其中包括隔板,以及一个电解池,包括一个阴极盒,包裹着隔膜。

Patent Agency Ranking