Preparation of 2,5-dibromoterephthalic acid
    11.
    发明授权
    Preparation of 2,5-dibromoterephthalic acid 失效
    2,5-二溴对苯二甲酸的制备

    公开(公告)号:US3894079A

    公开(公告)日:1975-07-08

    申请号:US31950072

    申请日:1972-12-29

    Inventor: KNOBLOCH JAMES O

    CPC classification number: C07C63/68 C07C51/363

    Abstract: 2,5-dibromoterephthalic acid, an intermediate used for flame retardant applications, is prepared from terephthalic acid, in a single step, by brominating terephthalic acid in chlorosulfonic acid or fluorosulfonic acid, containing sulfur trioxide and employing an iodine catalyst. The reaction is carried out under mild conditions. The products, 2,5-dibrometerephthalic acid, with lesser amounts of terephthalic acid, bromoterephthalic acid, tribromoterephthalic acid, and tetrabromoterephthalic acid, are recoverable either by filtration of the cooled bromination suspension or by distillation of the chlorosulfonic or fluorosulfonic acid solvent and the further hydrolysis of the brominated terephthalic acid product.

    Abstract translation: 用于阻燃应用的中间体是2,5-二溴对苯二甲酸,在一步中由对苯二甲酸通过在含有三氧化硫的氯磺酸或氟磺酸中溴化对苯二甲酸并使用碘催化剂制备。 反应在温和条件下进行。 产物2,5-二溴对苯二甲酸与较少量的对苯二甲酸,溴对苯二甲酸,三溴对苯二甲酸和四溴对苯二甲酸可以通过过滤冷却的溴化悬浮液或通过蒸馏氯磺酸或氟磺酸溶剂来回收, 溴化对苯二甲酸产物的水解。

    Reducing deposits and smoke from jet fuels
    14.
    发明授权
    Reducing deposits and smoke from jet fuels 失效
    从喷气燃料中减少沉积物和烟雾

    公开(公告)号:US3891401A

    公开(公告)日:1975-06-24

    申请号:US11986571

    申请日:1971-03-01

    Abstract: Smoke and ash deposit formation in commercial and military jet engines and power plants is minimized by inclusion in the fuel of an additive comprising oil-soluble salts of a transition metal, such as manganese or iron, and an alkaline earth metal. A preferred additive comprises methylcyclopentadienyl manganese tricarbonyl and calcium alkylphenol sulfide in amounts to provide a manganese/calcium weight ratio about 5/1. The calcium salt may be in an alkaline form derived by over-basing with calcium oxide and carbon dioxide.

    Abstract translation: 在商业和军用喷气发动机和动力装置中的烟和灰沉积物形成通过包含在包含过渡金属如锰或铁的油溶性盐和碱土金属的添加剂的燃料中而被最小化。 优选的添加剂包括甲基环戊二烯基三羰基锰和烷基酚硫化钙,其量提供约5/1的锰/钙重量比。 钙盐可以是通过用氧化钙和二氧化碳过碱性得到的碱性形式。

    Esters of 4-(high molecular weight alkyl-substituted carbophenoxy) phthalic acid
    15.
    发明授权
    Esters of 4-(high molecular weight alkyl-substituted carbophenoxy) phthalic acid 失效
    4-(高分子量烷基取代的羰基苯氧基)邻苯二甲酸的酯

    公开(公告)号:US3890301A

    公开(公告)日:1975-06-17

    申请号:US29364672

    申请日:1972-09-29

    CPC classification number: C07D209/48 C10M129/95 C10M133/52

    Abstract: Novel title esters are oil-soluble products derived from mono-, di-, tri- and higher hydric alcohols and hydroxy aromatic compounds reacted with 4-(C30-C214 alkyl-substituted carbophenoxy) phthalic anhydride or its diacid. Title esters are useful addition agents for lubricants to impart thereto antiwear, anti-rust and dispersancy functions.

    Abstract translation: 新型标题酯是衍生自单 - ,二 - ,三 - 和更高级醇和与4-(C30-C214烷基取代的羰基苯氧基)邻苯二甲酸酐或其二酸反应的羟基芳族化合物的油溶性产物。 标题酯是赋予润滑剂抗磨损,防锈和分散功能的有用的添加剂。

    Acrylonitrile and methacrylonitrile recovery and purification system
    16.
    发明授权
    Acrylonitrile and methacrylonitrile recovery and purification system 失效
    丙烯腈和甲基丙烯腈回收和净化系统

    公开(公告)号:US3885928A

    公开(公告)日:1975-05-27

    申请号:US37104373

    申请日:1973-06-18

    Inventor: WU HSIN CHIH

    CPC classification number: C07C253/34 C07C255/08

    Abstract: In the recovery and purification of acrylonitrile or methacrylonitrile obtained by the ammoxidation of propylene or isobutylene, the aqueous layer of the decanter associated with the column removing HCN from the nitrile is recycled to the quench column wherein the hot gases from the reactor are directly contacted with the aqueous recycle stream.

    Abstract translation: 在通过丙烯或异丁烯的氨氧化获得的丙烯腈或甲基丙烯腈的回收和纯化中,与从腈中除去HCN的塔相关联的滗析器的水层被再循环到骤冷塔中,其中来自反应器的热气体直接与 水循环物流。

    Urethane derivatives of polymethyl biphenyl
    18.
    发明授权
    Urethane derivatives of polymethyl biphenyl 失效
    聚乙二醇的尿素衍生物

    公开(公告)号:US3882163A

    公开(公告)日:1975-05-06

    申请号:US22036872

    申请日:1972-01-24

    CPC classification number: C07C271/06

    Abstract: Novel urethane derivatives of polymethyl biphenyl useful as fungicides and also having insecticidal, miticidal and nematocidal activities are disclosed. These products are prepared by reacting the appropriate alkyl or aryl chloroformate with the appropriate amino polymethylbiphenyl at temperatures of 0 to 35*C. to produce the corresponding urethane derivatives of polymethyl biphenyl.

    Abstract translation: 公开了可用作杀真菌剂并且还具有杀虫,杀螨和杀线虫活性的聚甲基联苯的新型氨基甲酸酯衍生物。 这些产物通过使适当的氯甲酸烷基酯或芳基酯与适当的氨基聚甲基联苯在0至35℃的温度下反应制备,以产生相应的聚甲基联苯的氨基甲酸酯衍生物。

    Urethane derivatives of polymethyl biphenyl useful as fungicides
    19.
    发明授权
    Urethane derivatives of polymethyl biphenyl useful as fungicides 失效
    聚甲基联苯的聚氨酯衍生物可用作杀真菌剂

    公开(公告)号:US3880908A

    公开(公告)日:1975-04-29

    申请号:US22036772

    申请日:1972-01-24

    CPC classification number: C07C271/06

    Abstract: Novel urethane derivatives of polymethyl biphenyl useful as fungicides and also having insecticidal, miticidal and nematocidal activities are disclosed. These products are prepared by reacting the appropriate alkyl or aryl isocyanate with the hydroxy polymethylbiphenyl at temperatures of 0* to 35*C. to produce the corresponding urethane derivatives of polymethyl biphenyl.

    Abstract translation: 公开了可用作杀真菌剂并且还具有杀虫,杀螨和杀线虫活性的聚甲基联苯的新型氨基甲酸酯衍生物。 这些产物通过使适当的烷基或芳基异氰酸酯与羟基聚甲基联苯在0℃至35℃的温度下反应制备,以产生相应的聚甲基联苯的氨基甲酸酯衍生物。

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