Process for producing carbamates from oximes
    1.
    发明授权
    Process for producing carbamates from oximes 失效
    从肟生产氨基甲酸酯的方法

    公开(公告)号:US5179223A

    公开(公告)日:1993-01-12

    申请号:US627196

    申请日:1990-12-13

    IPC分类号: C07C269/04 C07C271/60

    摘要: A process for producing a carbamate is disclosed. In one embodiment, the process comprises contacting a mixture comprising a primary amine component, an urea component and a hydroxy nitrogen component, in particular at least one oxime, at conditions effective to form a carbamate. Certain novel carbamates are also disclosed.

    摘要翻译: 公开了一种制备氨基甲酸酯的方法。 在一个实施方案中,该方法包括在有效形成氨基甲酸酯的条件下使包含伯胺组分,脲组分和羟基氮组分,特别是至少一个肟的混合物接触。 还公开了某些新型氨基甲酸酯。

    Recovery of amines from by-product chloride salts
    3.
    发明授权
    Recovery of amines from by-product chloride salts 失效
    从副产物氯化物盐中回收胺

    公开(公告)号:US4670232A

    公开(公告)日:1987-06-02

    申请号:US458821

    申请日:1983-01-18

    CPC分类号: C01D3/16 C01D3/14 Y10S210/903

    摘要: A method is disclosed for separating alkyleneamines from a mixture of by-product alkali or alkaline earth metal chloride salt and alkyleneamines comprising the sequenced combination of the steps of: (a) washing said amine-chloride salt mixture with an aqueous alkali or alkaline earth metal hydroxide solution to form a washed amine-chloride salt mixture; and (b) treating a mixture of the amino and chloride salt to physically separate chloride salt from said amine of said mixture.

    摘要翻译: 公开了用于从副产物碱金属或碱土金属氯化物盐和亚烷基胺的混合物中分离亚烷基胺的方法,其包括以下步骤的有序组合:(a)用碱金属或碱土金属水溶液洗涤所述胺 - 氯化物盐混合物 氢氧化物溶液以形成洗涤的胺氯化物盐混合物; 和(b)处理氨基和氯化物盐的混合物以物理分离所述混合物的胺的氯化物盐。