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    Process for the preparation of diphenyl ethers
    1.
    发明授权
    Process for the preparation of diphenyl ethers 失效
    二苯醚的制备方法

    公开(公告)号：US4564712A

    公开(公告)日：1986-01-14

    申请号：US554378

    申请日：1983-11-23

    申请人： Herbert Kuckertz ,  Georg Schaeffer

    发明人： Herbert Kuckertz ,  Georg Schaeffer

    IPC分类号： C07C43/257 ,  B01J27/00 ,  B01J27/232 ,  B01J31/00 ,  C07B61/00 ,  C07C41/00 ,  C07C41/16 ,  C07C43/263 ,  C07C43/275 ,  C07C43/29 ,  C07C45/70 ,  C07C67/00

    CPC分类号： C07C45/70 ,  C07C41/16

    摘要： Diphenyl ethers are prepared by Ullmann reaction of alkali metal phenolates with halobenzenes in the presence of basic copper carbonate and/or copper salts of lower aliphatic carboxylic acids as catalysts. These special catalysts have a better catalytic activity than other copper catalysts known for the Ullmann reaction.The diphenyl ethers prepared or obtainable according to the invention are mainly intermediates in diverse fields such as pharmaceuticals or plant protecting agents.

    摘要翻译： 在碱性碳酸铜和/或低级脂族羧酸的铜盐作为催化剂的存在下，碱金属酚盐与卤代苯的Ullmann反应制备二苯醚。 这些特殊的催化剂具有比其他已知用于乌尔曼反应的铜催化剂更好的催化活性。 根据本发明制备或可获得的二苯醚主要是各种领域的中间体，例如药物或植物保护剂。

    Process for separating organic constituents from waste gases of the production of aromatic intermediates
    2.
    发明授权
    Process for separating organic constituents from waste gases of the production of aromatic intermediates 失效
    分离有机成分与废气生产芳香族中间体的方法

    公开(公告)号：US4923485A

    公开(公告)日：1990-05-08

    申请号：US291515

    申请日：1988-12-29

    申请人： Ernst Horoldt ,  Richard Grimm ,  Siegbert Rittner ,  Herbert Kuckertz ,  Wilfried Billmann

    发明人： Ernst Horoldt ,  Richard Grimm ,  Siegbert Rittner ,  Herbert Kuckertz ,  Wilfried Billmann

    IPC分类号： B01D53/14 ,  B01D53/54 ,  B01D53/70 ,  B01D53/72 ,  B01D53/77 ,  B01D19/00

    CPC分类号： B01D53/72 ,  B01D53/1493

    摘要： A process for the separation of undesired organic ingredients from waste gases which are formed in the preparation of aromatic intermediates which comprises washing the waste gases with a washing liquid comprising(a) paraffinic hydrocarbons having from 10 to 20 carbons atoms or(b) diisopropylnaphthalene or a mixture of isomers thereof having the sum formula C.sub.16 H.sub.20, an average molecular weight in the range of from 210 to 215, a boiling range in the range of from 290 to 300.degree. C. (according to DIN 51 761) and a flash point above 130.degree. C. (according to DIN 51 758).at a temperature in the range of from 0 to 50.degree. C. to remove the said undesired organic ingredients.

    摘要翻译： 一种用于在芳香族中间体的制备中形成的不需要的有机成分与废气分离的方法，其包括用洗涤液洗涤废气，所述洗涤液包含（a）具有10至20个碳原子的链烷烃，或（b）二异丙基萘或 具有总计式C16H20，平均分子量为210-215，沸点范围为290-300℃（根据DIN 51761）和上述闪点的异构体的混合物 130℃（根据DIN 51 758）。 在0至50℃的温度范围内，以除去所述不期望的有机成分。