Amino acid mixtures, their alkali metal salts and process for preparing
same
    4.
    发明授权
    Amino acid mixtures, their alkali metal salts and process for preparing same 失效
    氨基酸混合物,其碱金属盐及其制备方法

    公开(公告)号:US4525294A

    公开(公告)日:1985-06-25

    申请号:US484943

    申请日:1983-04-14

    IPC分类号: C09K3/00 H05B33/00

    CPC分类号: C09K3/00 H05B33/00

    摘要: The present invention relates to the preparation of mixtures of sterically hindered substituted N-secondary amino acids or their alkali metal salts by a one-step reductive condensation of an amino acid or its alkali metal salt containing a primary amino group and a ketone to thereby form a mono-substituted amino acid or alkali metal salt thereof, followed by preparing the corresponding sterically hindered tertiary amino acids or alkali metal salt thereof by reacting the mono-substituted amino acids or alkali metal salt thereof with an unhindered aldehyde under reducing conditions in the presence of a hydrogenating catalyst. The novel mixtures of the sterically hindered mono-substituted amino acids and the tertiary amino acids and their alkali metal salts are useful promoters for alkaline salts in "hot pot" acid gas scrubbing processes.

    摘要翻译: 本发明涉及通过氨基酸或其含有伯氨基和酮的碱金属盐的一步还原缩合制备空间位阻取代的N-仲氨基酸或其碱金属盐的混合物,从而形成 单取代的氨基酸或其碱金属盐,然后在还原条件下使单取代的氨基酸或其碱金属盐与不受阻碍的醛反应制备相应的空间位阻叔氨基酸或其碱金属盐, 的氢化催化剂。 空间位阻单取代氨基酸和叔氨基酸及其碱金属盐的新型混合物是“火锅”酸性气体洗涤方法中碱性盐的有用促进剂。

    Co-promoted acid gas scrubbing solution and process for using same
    8.
    发明授权
    Co-promoted acid gas scrubbing solution and process for using same 失效
    共同促进的酸性气体洗涤溶液及其使用方法

    公开(公告)号:US4405578A

    公开(公告)日:1983-09-20

    申请号:US321060

    申请日:1981-11-13

    IPC分类号: B01D53/14 B01D53/34 C09K3/00

    CPC分类号: B01D53/1493 Y02C10/06

    摘要: The present invention relates to an alkaline salt promoter system comprising specific mixtures of lower aliphatic mono-substituted alpha amino acids and sterically hindered diamino or triamino compounds and their use in acid gas scrubbing processes. The preferred promoter system comprises a mixture of N-secondary butyl glycine and N-cyclohexyl-1,3-propanediamine or N-cyclohexyl-1, 4-butanediamine.

    摘要翻译: 本发明涉及包含低级脂族单取代的α-氨基酸和空间位阻二氨基或三氨基化合物的特定混合物的碱性盐促进剂体系,以及它们在酸性气体洗涤方法中的用途。 优选的助催化剂体系包括N-仲丁基甘氨酸和N-环己基-1,3-丙二胺或N-环己基-1,4-丁二胺的混合物。