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24 条记录 (耗时 0.013 秒)

    Method for regeneration of cation-exchange condensate polishers
    3.
    发明授权
    Method for regeneration of cation-exchange condensate polishers 失效
    阳离子交换冷凝物再生方法

    公开(公告)号：US4753736A

    公开(公告)日：1988-06-28

    申请号：US20791

    申请日：1987-03-02

    申请人： David W. Reichgott

    发明人： David W. Reichgott

    IPC分类号： B01J49/00 ,  C02F1/42

    CPC分类号： B01J49/0069

    摘要： A method for treating boiler water condensate to remove undesirable cations which comprises providing a bed of cation-exchange resin, passing water to be treated through said resin bed, and regenerating said resin with an aqueous solution of a salt comprising a volatile amine and an anion selected from anions which do not form precipitates with any cation present in the water to be treated under operational conditions, and wherein the volatile amine is optionally not the same as that employed as the corrosion inhibitor in the boiler water system. The preferred salts include cyclohexylamine citrate, methoxypropylamine citrate, diethanolamine citrate and monoethanolamine citrate. The proposed method is particularly advantageous since the anion of the regenerant salt is selected to avoid the formation of insoluble calcium salts.

    摘要翻译： 一种用于处理锅炉水冷凝物以除去不期望的阳离子的方法，其包括提供阳离子交换树脂床，使待处理的水通过所述树脂床，并用包含挥发性胺和阴离子的盐的水溶液再生所述树脂 选自不在操作条件下待处理水中存在的任何阳离子形成沉淀的阴离子，其中挥发性胺与锅炉水系统中的缓蚀剂所用的任选不同。 优选的盐包括环己胺柠檬酸盐，甲氧基丙胺柠檬酸盐，二乙醇胺柠檬酸盐和单乙醇胺柠檬酸盐。 所提出的方法是特别有利的，因为选择再生盐的阴离子以避免形成不溶性钙盐。

    Boiler water treatment
    4.
    发明授权
    Boiler water treatment 失效
    锅炉水处理

    公开(公告)号：US4442009A

    公开(公告)日：1984-04-10

    申请号：US385751

    申请日：1982-06-07

    申请人： Richard P. O'Leary ,  David W. Reichgott

    发明人： Richard P. O'Leary ,  David W. Reichgott

    IPC分类号： C02F5/12 ,  C02F5/10

    CPC分类号： C02F5/125

    摘要： The present invention is directed to a method for controlling scale which would otherwise be formed from water-soluble calcium, magnesium and iron impurities contained in boiler water which would provide calcium, magnesium and iron ions. The method comprises adding to said water: (i) a chelant selected from the group of ethylene diamine tetraacetic acid and the water soluble salts thereof, in an amount which is substoichiometric to that amount required to react with said ions present in the water; (ii) a water soluble phosphate salt which will provide phosphate ions in said water in an amount which is less than a 1:1 mole ratio of phosphate to calcium, but which is sufficient to react with all the calcium ions provided by said impurities which are not complexed by the chelant; and (iii) a water soluble polymethacrylic acid or water soluble salt thereof in an amount sufficient to disperse any particles formed by the reaction of the calcium ions with the phosphate ions and any other particulate matter formed by the reactions of the magnesium and iron ions.

    摘要翻译： 本发明涉及一种用于控制水垢的方法，否则该方法将由提供钙，镁和铁离子的锅炉水中所含的水溶性钙，镁和铁杂质形成。 该方法包括向所述水中加入：（i）选自乙二胺四乙酸和其水溶性盐的螯合剂，其量为与存在于水中的所述离子反应所需量的亚化学计量值; （ii）水溶性磷酸盐，其将在所述水中提供磷酸盐离子与磷酸钙与钙的摩尔比小于1:1的量，但足以与由所述杂质提供的所有钙离子反应， 不被螯合剂络合; 和（iii）水溶性聚甲基丙烯酸或其水溶性盐，其量足以分散由钙离子反应形成的任何颗粒与磷酸根离子和由镁和铁离子的反应形成的任何其它颗粒物质。

    Method for treating metal surfaces with a polymer solution
    6.
    发明授权
    Method for treating metal surfaces with a polymer solution 失效
    用聚合物溶液处理金属表面的方法

    公开(公告)号：US5112413A

    公开(公告)日：1992-05-12

    申请号：US543642

    申请日：1990-06-26

    申请人： William S. Carey ,  Fu Chen ,  David W. Reichgott

    发明人： William S. Carey ,  Fu Chen ,  David W. Reichgott

    IPC分类号： C09D125/18 ,  C23C22/83

    CPC分类号： C09D125/18 ,  C23C22/83

    摘要： Methods for treating metal surfaces including contacting the surface with a water soluble or water dispersible polymer comprising a repeat unit (a) having the structure ##STR1## or salt form of said repeat unit, wherein R and R.sub.1 are the same or different and are independently chosen from C.sub.1 -C.sub.3 lower alkylene and wherein z is an integer of from 1-3. The methods also include use of copolymers having in addition to repeat unit (a) above, a repeat unit (b) having the structure ##STR2## from wherein X is OH, NH.sub.2, or OM wherein M is a cation, the molar ration of (a.sub.1):(b) being present in said copolymer being from about 20:1 to 1:20. The methods provide chromium free rinse solutions for use in rinsing phosphate-based conversion coated metal surfaces.

    摘要翻译： 用于处理金属表面的方法，包括使表面与水溶性或水分散性聚合物接触，所述聚合物包含具有所述重复单元结构（I）或盐形式的重复单元（a），其中R和R 1相同或不同 并且独立地选自C 1 -C 3低级亚烷基，并且其中z是1-3的整数。 所述方法还包括使用具有上述重复单元（a）的共聚物，具有结构式（II）的重复单元（b），其中X是OH，NH 2或OM，其中M是阳离子， 所述共聚物中存在的（a1）（b）的摩尔比为约20:1至1:20。 该方法提供无铬漂洗溶液，用于冲洗基于磷酸盐的转化涂层金属表面。