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    Vapor phase cracking of dicyclopentadiene and synthesis of 2,3-dihydroxycyclopentadiene and cyclopentene
    64.
    发明授权
    Vapor phase cracking of dicyclopentadiene and synthesis of 2,3-dihydroxycyclopentadiene and cyclopentene 失效
    二环戊二烯的气相裂解和2,3-二羟基环戊二烯和环戊烯的合成

    公开(公告)号：US4139569A

    公开(公告)日：1979-02-13

    申请号：US851034

    申请日：1977-11-14

    申请人： Parley C. Lane, Jr.

    发明人： Parley C. Lane, Jr.

    IPC分类号： C07C1/00 ,  C07C2/50 ,  C07C4/22 ,  C07C13/15 ,  C07C13/61 ,  C07C67/00 ,  C07C3/26 ,  C07C13/12

    CPC分类号： C07C13/61 ,  C07C2/50 ,  C07C4/22 ,  C07C2101/10 ,  C07C2103/68

    摘要： Improved process for vapor phase cracking of dicyclopentadiene and synthesis of 2,3-dihydrodicyclopentadiene therefrom. Initially, a feedstock consisting essentially of dicyclopentadiene and cyclopentene is subjected to thermocracking in the vapor phase, resulting in the conversion of dicyclopentadiene to monomeric cyclopentadiene. The presence of cyclopentene in the feed stock is believed to minimize coke formation on the interior walls of the cracking chamber. Subsequent selective catalytic hydrogenation of the resulting mixture converts substantially all of the monomeric cyclopentadiene to cyclopentene. The cyclopentene, prepared in the above manner, can be combined with additional quantitie;s of dicyclopentadiene and the resultant mixture subjected to dimerization in the liquid phase at elevated temperatures, thereby forming the monomer, 2,3-dihydrodicyclopentadiene.

    摘要翻译： {PG，1改进的二环戊二烯的气相裂解方法和2,3-二氢二环戊二烯的合成。 最初，基本上由二环戊二烯和环戊烯组成的原料在气相中进行热压，导致二环戊二烯转化成单环戊二烯。 相信原料中环戊烯的存在被认为是最小化裂解室内壁上的焦炭形成。 随后所得混合物的选择性催化氢化将基本上所有的单体环戊二烯转化为环戊烯。 以上述方式制备的环戊烯可与另外的二环戊二烯定量组合，所得混合物在高温下在液相中进行二聚，由此形成单体2,3-二氢二环戊二烯。