Treatment of water, especially water for aquaria
    169.
    发明授权
    Treatment of water, especially water for aquaria 失效
    处理水,特别是水的水

    公开(公告)号:US4383924A

    公开(公告)日:1983-05-17

    申请号:US194022

    申请日:1980-10-06

    Applicant: Gunter Ritter

    Inventor: Gunter Ritter

    CPC classification number: B01J45/00 A01K63/04

    Abstract: Treatment of water for selective and quantitative removal of all cations of the transition elements, with simultaneous adjustment of a definite mole ratio of calcium, magnesium, and the alkali metals, with a cation exchanger which, towards the ions of the I. transition elements, II. alkaline earth metals, III. alkali metals, shows a markedly gradually decreasing affinity from I. to III.; and which cation exchanger is loaded with calcium and magnesium ions in a predetermined mole ratio, or with hydrogen or sodium ions to obtain a water corresponding to the desired type of water in a vessel made of a water-resistant material and having at least one water-permeable wall.

    Abstract translation: 处理水以选择性和定量地除去过渡元素的所有阳离子,同时利用阳离子交换剂调节钙,镁和碱金属的确定摩尔比,该阳离子交换剂朝向I.过渡元素的离子, 二, 碱土金属,III。 碱金属显示出从I到III显着逐渐降低的亲和力。 并且哪个阳离子交换剂以预定的摩尔比装载钙离子和镁离子,或用氢或钠离子负载,以在由耐水材料制成的容器中获得对应于所需类型的水的水,并且具有至少一种水 不渗透墙

    Vinyl substituted cyclic polyethers and addition polymers thereof
    170.
    发明授权
    Vinyl substituted cyclic polyethers and addition polymers thereof 失效
    乙烯基取代的环状聚醚及其加成聚合物

    公开(公告)号:US4351933A

    公开(公告)日:1982-09-28

    申请号:US271745

    申请日:1981-06-08

    Abstract: Compounds represented by the formula: ##STR1## and addition polymers thereof where m is an integer from 2 to about 10, X-- is chlorine, hydroxy, carboxy or:--AC--R).dbd.CH.sub.2--R is hydrogen or methyl, --R--' is an ethylene or propylene group and--AC--R).dbd.CH.sub.2is one of: ##STR2## These compounds and their addition polymers form complexes with alkali metal or alkaline earth metal salts and permit the concentration of aqueous solutions of said salts. For example, a compound of the formula: ##STR3## is polymerized with an azobis (isobutyronitrile) catalyst to form addition polymers of the repeating unit ##STR4## When cross-linked, rendering it water-insoluble, such an addition polymer concentrates an aqueous solution of sodium chloride when contacted with same at about 0.degree. C.

    Abstract translation: 由下式表示的化合物及其加成聚合物,其中m为2至约10的整数,X-为氯,羟基,羧基或:-AC-R)= CH 2 -R为氢或甲基,-R - '是乙烯或丙烯基,-AC-R)= CH 2是以下之一:这些化合物及其加成聚合物与碱金属或碱土金属盐形成络合物,并允许浓度为 说盐。 例如,下式的化合物与偶氮二(异丁腈)催化剂聚合以形成重复单元的加成聚合物。当交联时,使其不溶于水,这种加成聚合物将水 氯化钠在约0℃下与其接触时的溶液

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