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    Preparation of aqueous solutions of free hydroxylamine
    6.
    发明授权
    Preparation of aqueous solutions of free hydroxylamine 失效
    游离羟胺水溶液的制备

    公开(公告)号：US4778669A

    公开(公告)日：1988-10-18

    申请号：US5700

    申请日：1987-01-22

    申请人： Hugo Fuchs ,  Franz-Josef Weiss ,  Erwin Thomas ,  Josef Ritz

    发明人： Hugo Fuchs ,  Franz-Josef Weiss ,  Erwin Thomas ,  Josef Ritz

    IPC分类号： C01B21/14

    CPC分类号： C01B21/1445

    摘要： Aqueous solutions of free hydroxylamine are prepared by a process in which(a) hydroxylammonium sulfate is reacted with ammonia in a lower alkanol as solvent, and a solution of free hydroxylamine and solid ammonium sulfate with residues of hydroxylammonium sulfate is obtained,(b) solid ammonium sulfate and hydroxylammonium sulfate are separated off from the resulting reaction mixture, and an alcoholic solution of free hydroxylamine is obtained as the filtrate,(c) a stabilizer and water are added to the resulting alcoholic solution of free hydroxylamine, and(d) the alkanol is distilled off from the alcoholic solution containing free hydroxylamine, the stabilizer and water.

    摘要翻译： 通过以下方法制备游离羟胺的水溶液：（a）硫羟酸铵与氨在低级烷醇作为溶剂中反应，得到游离羟胺和固体硫酸铵与硫酸氢铵残基的溶液，（b）固体 从得到的反应混合物中分离出硫酸铵和硫酸氢氧化铵，得到游离羟胺的醇溶液作为滤液，（c）向得到的游离羟胺的醇溶液中加入稳定剂和水，（d） 从含有游离羟胺，稳定剂和水的醇溶液中蒸馏出链烷醇。

    Preparation of hydroxylammonium salts
    7.
    发明授权
    Preparation of hydroxylammonium salts 失效
    羟基铵盐的制备

    公开(公告)号：US4889704A

    公开(公告)日：1989-12-26

    申请号：US184085

    申请日：1988-04-20

    申请人： Hugo Fuchs ,  Josef Ritz ,  Erwin Thomas ,  Franz-Josef Weiss

    发明人： Hugo Fuchs ,  Josef Ritz ,  Erwin Thomas ,  Franz-Josef Weiss

    IPC分类号： B01J23/42 ,  C01B21/14

    CPC分类号： C01B21/1418

    摘要： Hydroxylammonium salts are prepared by catalytic reduction of nitrogen monoxide with hydrogen at elevated temperature in a dilute aqueous solution of a mineral acid in the presence, in suspension, of a supported platinum catalyst obtainable by precipitating metallic platinum from an aqueous platinum solution onto a support by means of a reducing agent in the presence of an organic chelating agent and partially poisoned with sulfur.

    摘要翻译： 羟基铵盐通过在无水酸的稀的水溶液中在氢气的一个一氧化碳中催化还原一氧化氮，在悬浮液中存在的载体铂催化剂存在下，通过将金属铂从铂水溶液中沉淀到载体上而得到 在有机螯合剂存在下还原剂并用硫部分中毒的还原剂的方法。

    Preparation of hydroxylamine-O-sulfonic acid
    9.
    发明授权
    Preparation of hydroxylamine-O-sulfonic acid 失效
    羟胺-O-磺酸的制备

    公开(公告)号：US4737354A

    公开(公告)日：1988-04-12

    申请号：US8343

    申请日：1987-01-29

    申请人： Hugo Fuchs ,  Franz-Josef Weiss ,  Erwin Thomas ,  Josef Ritz

    发明人： Hugo Fuchs ,  Franz-Josef Weiss ,  Erwin Thomas ,  Josef Ritz

    IPC分类号： B01J23/00 ,  B01J23/40 ,  C01B21/093 ,  C01B21/14 ,  C01B21/00 ,  C01B21/54

    CPC分类号： C01B21/093 ,  C01B21/1418

    摘要： Hydroxylamine-O-sulfonic acid is prepared by(a) reacting hydroxylammonium sulfate with oleum at elevated temperatures,(b) isolating sulfuric acid from the hydroxylamine-O-sulfonic acid formed,(c) diluting the sulfuric acid which was obtained in stage (b) and which still contains hydroxylamino-O-sulfonic acid with water to 2-6N and heating it to 30.degree.-80.degree. C. for 1-10 hours,(d) preparing hydroxylamine by catalytic reduction of nitrogen monoxide with hydrogen using the dilute sulfuric acid from stage (c) in the presence of a noble metal catalyst at elevated temperatures.

    摘要翻译： （a）在升高的温度下使羟基硫酸铵与发烟硫酸反应制备羟胺-O-磺酸，（b）从形成的羟胺-O-磺酸中分离出硫酸，（c）稀释在步骤 b），其还含有羟基氨基-O-磺酸与水至2-6N，并加热至30-80℃1-10小时，（d）通过使用氢气将一氧化氮催化还原制备羟胺 在贵金属催化剂存在下，在高温下从阶段（c）稀释硫酸。