PROCESS FOR PREPARING AMINOPOLYCARBOXYLATES
    1.
    发明申请
    PROCESS FOR PREPARING AMINOPOLYCARBOXYLATES 有权
    制备氨基羟基羧酸酯的方法

    公开(公告)号:US20120302783A1

    公开(公告)日:2012-11-29

    申请号:US13437093

    申请日:2012-04-02

    IPC分类号: C07C227/02

    CPC分类号: C07C227/02

    摘要: What is proposed is a process for preparing aminopolycarboxylates proceeding from the corresponding polyalkanolamines by oxidative dehydrogenation in the presence of a catalyst comprising 1 to 90% by weight of copper, based on the total weight of the catalyst, using a base, which comprises first performing a partial conversion of the polyalkanolamine to a reaction mixture comprising the aminopolycarboxylate at a temperature in the range from 140 to 180° C. until at least 10 to 90 mol % of the polyalkanolamine has been depleted, and then continuing the conversion at elevated temperature.

    摘要翻译: 提出的是一种制备在相应的聚链烷醇胺上通过氧化脱氢在催化剂存在下进行的氨基多羧酸盐的方法,所述催化剂包含1至90重量%的铜,基于催化剂的总重量,使用碱,其包括首先进行 在140〜180℃的温度范围内将聚链烷醇胺部分转化成含有氨基多羧酸盐的反应混合物,直到聚链烷醇胺的至少10〜90摩尔%已经耗尽,然后在升高的温度下继续转化。

    PROCESS FOR OBTAINING A DIALKYL CARBONATE AND AN ALKYLENE GLYCOL
    9.
    发明申请
    PROCESS FOR OBTAINING A DIALKYL CARBONATE AND AN ALKYLENE GLYCOL 审中-公开
    获得碳酸二乙酯和烷基甘氨酸的方法

    公开(公告)号:US20130144080A1

    公开(公告)日:2013-06-06

    申请号:US13693281

    申请日:2012-12-04

    IPC分类号: C07C68/08 C07C29/82

    摘要: The invention relates to a process for obtaining a dialkyl carbonate and an alkylene glycol from a stream comprising dialkyl carbonate, alkylene carbonate, alkylene glycol and alcohol, comprising the following steps: (a) distillatively removing a stream (5) comprising dialkyl carbonate and alkylene glycol as a heteroazeotrope from the stream comprising dialkyl carbonate, alkylene carbonate, alkylene glycol and alcohol in a first distillation stage (1), (b) separating the stream (5) comprising dialkyl carbonate and alkylene glycol as a heteroazeotrope into a first crude product stream (27) comprising essentially di-alkyl carbonate and a second crude product stream (29) comprising essentially alkylene glycol in an apparatus for phase separation (25).

    摘要翻译: 本发明涉及从包含碳酸二烷基酯,亚烷基碳酸酯,亚烷基二醇和醇的物流中获得碳酸二烷基酯和亚烷基二醇的方法,包括以下步骤:(a)蒸馏除去包含碳酸二烷基酯和亚烷基 在第一蒸馏阶段(1)中,将包含碳酸二烷基酯,亚烷基碳酸酯,亚烷基二醇和醇的物流作为杂化物二醇,(b)将包含碳酸二烷基酯和亚烷基二醇的物流(5)分离成第一粗产物 包含基本上二烷基碳酸酯的流(27)和在用于相分离的装置(25)中基本上包含亚烷基二醇的第二粗产物流(29)。

    METHOD FOR PRODUCING URETHANES
    10.
    发明申请
    METHOD FOR PRODUCING URETHANES 有权
    生产尿素的方法

    公开(公告)号:US20120203022A1

    公开(公告)日:2012-08-09

    申请号:US13501621

    申请日:2010-10-20

    IPC分类号: C07C269/04 C07C263/04

    摘要: The content of the invention is a process for preparing urethanes by reaction of aromatic amines with a dialkyl carbonate, wherein the alkyl radical of the organic dialkyl carbonate comprises 4-18 carbon atoms and is branched in the 2 position, and the reaction is performed in the presence of a substoichiometric amount of base, based on the amino groups.

    摘要翻译: 本发明的内容是通过芳族胺与碳酸二烷基酯的反应制备氨基甲酸酯的方法,其中有机碳酸二烷基酯的烷基包含4-18个碳原子并在2位上分支,并且反应在 基于氨基的亚化学计量量的碱的存在。