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A method for the production of suitable as the reagent hydrochloric acid from the preparation of organic isocyanates

机译:从有机异氰酸酯的制备中制备合适的试剂盐酸的方法

摘要

Reagent grade hydrochloric acid having an iron content of less than 200 p.p.b. is made from an industrial organic isocyanate manufacturing process by removing hydrogen chloride from organic isocyanates produced in the reaction between phosgene and an organic amine, converting the hydrogen chloride to concentrated aqueous hydrochloric acid, and contacting the acid with a strongly basic anion exchange resin.
机译:铁含量低于200 p.p.b的试剂级盐酸。由工业有机异氰酸酯生产工艺制得,方法是从光气与有机胺之间的反应中产生的有机异氰酸酯中除去氯化氢,将氯化氢转化为浓盐酸水溶液,并使该酸与强碱性阴离子交换树脂接触。

著录项

  • 公开/公告号DE69400452T2

    专利类型

  • 公开/公告日1997-02-27

    原文格式PDF

  • 申请/专利权人 BASF CORP US;

    申请/专利号DE1994600452T

  • 发明设计人 NUERNBERG K EDWARD US;SCHWARZ HANS V US;

    申请日1994-03-10

  • 分类号C01B7/07;

  • 国家 DE

  • 入库时间 2022-08-22 03:12:46

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