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75 条记录 (耗时 0.014 秒)

    Nucleophilic substitution process
    6.
    发明授权
    Nucleophilic substitution process 失效
    亲核取代过程

    公开(公告)号：US4503000A

    公开(公告)日：1985-03-05

    申请号：US487039

    申请日：1983-04-21

    申请人： Kenneth C. Lilje

    发明人： Kenneth C. Lilje

    IPC分类号： C07C255/32 ,  C07C121/50

    CPC分类号： C07C255/00

    摘要： In a process for preparing a 2-(fluoronitrobenzene)acetonitrile by reacting a fluoronitrobenzene with an alpha,alpha-disubstituted acetonitrile in an inert solvent and in the presence of a base, the temperature is maintained not higher than about 15.degree. C. to lead to the formation of a 2-(fluoro-2-nitrobenzene)acetonitrile. Preferred reactants are 2-fluoronitrobenzene and 2-chloropropionitrile, which lead to the formation of 2-(3-fluoro-2-nitrobenzene)propionitrile.

    摘要翻译： 在通过使氟硝基苯与α，α-二取代的乙腈在惰性溶剂中并在碱的存在下反应制备2-（氟硝基苯）乙腈的方法中，将温度保持不高于约15℃，以引导 形成2-（氟-2-硝基苯）乙腈。 优选的反应物是2-氟硝基苯和2-氯丙腈，其导致形成2-（3-氟-2-硝基苯）丙腈。

    Treatment of purge gas
    7.
    发明授权
    Treatment of purge gas 失效
    处理吹扫气体

    公开(公告)号：US4502997A

    公开(公告)日：1985-03-05

    申请号：US472187

    申请日：1983-03-04

    申请人： Utah Tsao

    发明人： Utah Tsao

    IPC分类号： B01D53/14 ,  C07C253/34 ,  C07D213/84 ,  C07C121/50

    CPC分类号： C07D213/84 ,  B01D53/14 ,  B01D53/1475 ,  B01D53/1487 ,  C07C253/34 ,  Y02C10/06 ,  Y02P20/152

    摘要： The invention relates to a process for treating purge gas including carbon dioxide, water vapor, organics and ammonia. In accordance with the invention, the purge gas is scrubbed with water to absorb ammonia and water is added to the scrubbed purge gas in an amount in excess of the amount required to dissolve the maximum amount of ammonium carbonate which can be formed from any ammonia and carbon dioxide present in the purge gas. The purge gas is subsequently cooled to condense the remaining organics and water and to provide a purge gas suitable for venting.

    摘要翻译： 本发明涉及一种处理包括二氧化碳，水蒸气，有机物和氨在内的净化气体的方法。 根据本发明，净化气体用水洗涤以吸收氨，并且将水以超过溶解最大量可由任何氨形成的碳酸铵所需的量的量加入到洗涤的吹扫气体中，并且 存在于吹扫气体中的二氧化碳。 随后将吹扫气体冷却以冷凝剩余的有机物和水，并提供适于排气的吹扫气体。

    Terminated bis(3,4-dicyanophenoxy) alkanes
    8.
    发明授权
    Terminated bis(3,4-dicyanophenoxy) alkanes 失效
    终止的双（3,4-二氰基苯氧基）烷烃

    公开(公告)号：US4226801A

    公开(公告)日：1980-10-07

    申请号：US051568

    申请日：1979-06-25

    申请人： Teddy M. Keller ,  James R. Griffith

    发明人： Teddy M. Keller ,  James R. Griffith

    IPC分类号： C08G73/06 ,  C07C121/50

    CPC分类号： C08G73/0672 ,  C08G73/06

    摘要： Terminated bis(3,4-dicyanophenoxy) alkanes, wherein the alkylene chain is om 2 to 30 carbon atoms in length, is prepared by the reaction of 4-nitrophthalonitrile with a terminated alkane diol at elevated temperatures. A polyphthalocyanine resin is obtained by heating the dicyanophenoxy alkanes neat or with a salt or metal at a temperature from about 180.degree. C. to about 245.degree. C. The polyphthalocyanine resin is useful as a high-temperature structural or composite material which is highly resistant to mechanical stresses and strains.

    摘要翻译： 其中亚烷基链长度为2至30个碳原子的末端双（3,4-二氰基苯氧基）烷烃通过4-硝基邻苯二腈与封端的烷二醇在升高的温度下的反应来制备。 通过在约180℃至约245℃的温度下，纯化或与盐或金属加热二氰基苯氧基烷烃获得聚酞菁树脂。聚酞菁树脂可用作耐高温结构或复合材料 到机械应力和应变。

    Pesticidal .alpha.-cyanobenzyl ester enantiomer pair
    9.
    发明授权
    Pesticidal .alpha.-cyanobenzyl ester enantiomer pair 失效
    杀虫剂α-氰基苄酯对映异构体对

    公开(公告)号：US4176195A

    公开(公告)日：1979-11-27

    申请号：US926366

    申请日：1978-07-20

    申请人： Donald W. Stoutamire

    发明人： Donald W. Stoutamire

    IPC分类号： A01N37/38 ,  A01N9/06 ,  A01N9/20 ,  C07C121/50 ,  C07C121/60

    CPC分类号： A01N37/38

    摘要： An enantiomer pair consisting of S-.alpha.-cyano-3-phenoxybenzyl S-.alpha.-isopropyl-p-chlorophenylacetate and R-.alpha.-cyano-3-phenoxybenzyl R-.alpha.-isopropyl-p-chlorophenylacetate, said pair substantially free of other stereoisomers is a highly active pesticide.

    摘要翻译： 由S-α-异丙基对氯苯乙酸S-α-氰基-3-苯氧基苄酯和R-α-异丙基对氯苯乙酸R-α-氰基-3-苯氧基苄酯组成的对映异构体对，基本上不含其它立体异构体 是一种高度活跃的农药。

    Continuous production of N-alkylarylamines
    10.
    发明授权
    Continuous production of N-alkylarylamines 失效
    连续生产N-烷基铝

    公开(公告)号：US3957874A

    公开(公告)日：1976-05-18

    申请号：US487236

    申请日：1974-07-10

    申请人： Toni Dockner ,  Herbert Krug

    发明人： Toni Dockner ,  Herbert Krug

    IPC分类号： C07B61/00 ,  B01J21/00 ,  C07C67/00 ,  C07C209/00 ,  C07C209/18 ,  C07C211/46 ,  C07C211/48 ,  C07C211/50 ,  C07C87/62 ,  C07C121/50

    CPC分类号： C07C209/18

    摘要： An improved process for the continuous production of N-alkylarylamines by reaction of arylamines with alkanols and/or dialkyl ethers in the gas phase at a temperature of from 180.degree. to 450.degree.C in the presence of carrier substances which contain an oxyacid of phosphorus. The improvement consists in using silicic acid having an internal surface area of from 50 to 500 square meters per gram and a content of from 0.1 to 20% by weight of phosphoric acid and in the continuous supply of phosphoric acid and/or an alkyl phosphate to the catalyst during the reaction. N-alkylarylamines are starting materials for the production of dyes, pesticides, plant protection agents and growth regulators. They are also suitable as additives to mineral oils or to coating compositions and other polymerized systems.