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39 条记录 (耗时 0.011 秒)

    Method of producing trioxan
    1.
    发明授权
    Method of producing trioxan 失效
    生产三氯生物的方法

    公开(公告)号：US3697546A

    公开(公告)日：1972-10-10

    申请号：US3697546D

    申请日：1970-01-14

    申请人： JAPAN GAS CHEMICAL CO

    发明人： ASAKAWA KAZUO ,  NARITA KAORU

    IPC分类号： C07D323/06 ,  C07D19/00

    CPC分类号： C07D323/06

    摘要： The present invention relates to a method of producing trioxan which involves heating a liquid mixture of formaldehyde and a lower aliphatic hydrocarbon in the presence of a solid acid catalyst. More specifically, according to the present invention, raw formaldehyde having a relatively high water content can be used as the starting material by removing the water from the system in an azeotropic mixture with the lower aliphatic dihalide by a distillation procedure and heating the residual formaldehyde-lower aliphatic hydrocarbon halide in the presence of a solid acid catalyst to form the objective trioxane product.

    摘要翻译： 本发明涉及一种生产三恶烷的方法，其包括在固体酸催化剂存在下加热甲醛和低级脂族烃的液体混合物。 更具体地说，根据本发明，通过蒸馏方法，通过用与下部脂肪族二卤化物的共沸混合物从体系中除去水而将水分含量较高的生成甲醛用作起始原料，并加热残留的甲醛 - 低级脂族烃卤化物，在固体酸催化剂存在下形成目标三恶烷产物。

    Cyclic diperoxides
    5.
    发明授权
    Cyclic diperoxides 失效
    循环DIPEROXIDES

    公开(公告)号：US3579541A

    公开(公告)日：1971-05-18

    申请号：US3579541D

    申请日：1968-06-04

    申请人： REICHHOLD CHEMICALS INC

    发明人： CHANG YUN G

    IPC分类号： C07D323/00 ,  C07D19/00

    CPC分类号： C07D323/00

    摘要： CYCLIC PEROXIDES ARE PREPARED BY REACTING HYDROXY ACETONE WITH A DIFUNCTIONAL HYDROPEROXIDE. THE REACTION TAKES PLACE IN A SOLVENT AT A TEMPERATURE RANGING FROM ABOUT 0*C. TO 100*C. IN PRESENCE OF AN ACIDIC CATALYST. THE RESULTING CYCLIC PEROXIDES ARE FOUND TO BE HIGHLY EFFICIENT POLYMERIZATION INITIATORS AND CROSS-LINKING AGENTS.

    Production of trioxane
    9.
    发明授权
    Production of trioxane 失效
    三氧化二铁的生产

    公开(公告)号：US3781304A

    公开(公告)日：1973-12-25

    申请号：US3781304D

    申请日：1972-01-24

    申请人： BASF AG

    发明人： FUCHS H ,  HILT A

    IPC分类号： C07D323/06 ,  C07D19/00

    CPC分类号： C07D323/06

    摘要： PRODUCTION OF TRIOXANE FROM AQUEOUS FORMALDEHYDE SOLUTIONS IN THE PRESENCE OF MIXTURES OF BORIC ACID AND PHOSPHORIC ACID AS ACID CATALYSTS.

    Process for the preparation of 1,3,5-trioxane
    10.
    发明授权
    Process for the preparation of 1,3,5-trioxane 失效
    制备1,3,5-三氯乙烯的方法

    公开(公告)号：US3661932A

    公开(公告)日：1972-05-09

    申请号：US3661932D

    申请日：1967-05-01

    申请人： MONTEDISON SPA

    发明人： PREGAGLIA GIANFRANCO ,  AGAMENNONE MARCO ,  CAVALLI LUIGI

    IPC分类号： C07D19/00

    CPC分类号： Y10S203/02 ,  Y10S203/06

    摘要： INCREASING THE PRODUCTIVITY OF THE REACTION IN THE PREPARATION OF 1,3,5-TRIOXANE FROM A CONCENTRATED FORMALDEHYDE SOLUTION CONTAINING A STRONG ACID BY INCLUDING IN THE SOLUTION FROM ABOUT 5 TO 15 GRAMS PER 100 CC. OF SOLUTION OF A SOLUBLE ACID SALT OF ALUMINUM OR OF A MONOVALENT OR A BIVALENT METAL SELECTED FROM THE GROUP I-A, II-A AND II-B METALS, MN, FE, CO AND NI, THE SALT BEING OF AN ACID HAVING A PKA LOWER THAN 2.