首页> 外国专利> Maleic, chelating structure, improvement in the process of abduction of a polyvalent cation, a process to dissolve the calcium sulfate of an article.Process for selectively sequestering nickel from a mixture containing iron, process for producing maleic and process to apply a chelating composition

Maleic, chelating structure, improvement in the process of abduction of a polyvalent cation, a process to dissolve the calcium sulfate of an article.Process for selectively sequestering nickel from a mixture containing iron, process for producing maleic and process to apply a chelating composition

机译:马来酸的螯合结构,多价阳离子的外加方法的改进,物品的硫酸钙的溶解方法从含铁的混合物中选择性螯合镍的方法,马来酸的制备方法和应用螯合组合物的方法

摘要

Amino-polyacetic acids such as ethylenediaminetetraacetic acid, diethylene triaminepentaacetic acid and nitrilotriacetic acid are reacted with alkanols and then with hydrazine to form the hydrazides which may be converted to carboxyhydrazides, i.e. carbazic acids. The products perform well as chelants and sequestering agents.
机译:使氨基-聚乙酸,例如乙二胺四乙酸,二亚乙基三胺五乙酸和次氮基三乙酸与烷醇反应,然后与肼反应,形成酰肼,该酰肼可以转化为羧酰肼,即咔唑酸。该产品可以用作螯合剂和螯合剂。

著录项

  • 公开/公告号BR8403976A

    专利类型

  • 公开/公告日1985-07-09

    原文格式PDF

  • 申请/专利权人 NUCLEAR TECHNOLOGY CORPORATION;

    申请/专利号BR19848403976

  • 发明设计人 THOMAS F. DMUHALA;ROBERT C. WARD;

    申请日1984-08-09

  • 分类号C07C109/097;

  • 国家 BR

  • 入库时间 2022-08-22 08:19:27

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