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    • 41. 发明授权
    • Orthoalkylation catalyst for phenol and process for producing orthoalkylated phenol with use thereof
    • 苯酚正烷基化催化剂及其制备原烷基化苯酚的方法
    • US06951966B1
    • 2005-10-04
    • US09555255
    • 1999-09-28
    • Mitsuhiro HigashiMasamitsu TanakaKenji Ekawa
    • Mitsuhiro HigashiMasamitsu TanakaKenji Ekawa
    • B01J21/10B01J23/34C07C37/00C07C37/16
    • C07C37/16B01J21/10B01J23/34Y02P20/52Y02P20/584C07C39/07
    • The orthoalkylation catalyst for phenols of the invention is one produced by calcining a catalyst precursor comprising basic magnesium carbonate (a) and magnesium oxide (b) optionally together with manganese oxalate (c), the basic magnesium carbonate (a) and magnesium oxide (b) being mixed together at a weight ratio ((a)/(b)) of 20/80 to 80/20. The process for producing an orthoalkylated phenol according to the invention comprises performing a vapor phase reaction of a phenol with an alkyl alcohol in the presence of the above orthoalkylation catalyst so that an orthoalkylated phenol is obtained.The invention enables obtaining an orthoalkylation catalyst for phenols which has high activity and high selectivity, has long catalytic life and exhibits more stable catalytic life than those of conventional orthoalkylation catalysts for phenols. Moreover, by virtue of the use of the catalyst capable of exerting these effects, there can be obtained a process for producing an orthoalkylated phenol which ensures prolonged and constant catalyst regeneration cycle.
    • 本发明酚类的正烷基化催化剂是通过将含有碱式碳酸镁(a)和氧化镁(b)的催化剂前体任选与草酸锰(c),碱式碳酸镁(a)和氧化镁(b) )以20/80至80/20的重量比((a)/(b))混合在一起。 根据本发明的用于生产原烷基化苯酚的方法包括在上述正烷基化催化剂的存在下进行酚与烷基醇的气相反应,从而得到原烷基化苯酚。 本发明能够获得具有高活性和高选择性的酚的正烷基化催化剂,具有长的催化寿命并且比常规的酚类正烷基化催化剂的催化寿命更加稳定。 此外,通过使用能够发挥这些效果的催化剂,可以获得一种生产原烷基化苯酚的方法,其确保延长和恒定的催化剂再生循环。
    • 50. 发明授权
    • Trisphenol compound
    • 三酚化合物
    • US08816135B2
    • 2014-08-26
    • US13395062
    • 2010-09-09
    • Akira YoshitomoShihoko Nakano
    • Akira YoshitomoShihoko Nakano
    • C07C39/14C07C39/15C07C37/20
    • C07C39/15C07C37/20
    • A trisphenol compound is expressed by formula (1), wherein R represents an alkyl group or alkoxyl group with 1 to 8 carbon atoms, phenyl group or hydroxyl group; R1 represents an alkyl group or alkoxyl group with 1 to 8 carbon atoms, or phenyl group; R2 represents an alkyl group or alkoxyl group with 1 to 8 carbon atoms; R3 represents a hydrogen atom or alkyl group with 1 to 8 carbon atoms; a represents 0, 1, 2, or 3; b represents 1 or 2; and c and d represent 0, 1, 2, 3, or 4; where the sum of b and c is 5 or less; R's may be either the same or different when a is 2 or more; R1's may be either the same or different when c is 2 or more; and R2's may be either the same or different when d is 2 or more.
    • 三酚化合物由式(1)表示,其中R表示烷基或具有1至8个碳原子的烷氧基,苯基或羟基; R1表示碳原子数为1〜8的烷基或烷氧基,或苯基。 R2表示碳原子数为1〜8的烷基或烷氧基, R3表示氢原子或碳原子数为1〜8的烷基; a表示0,1,2或3; b表示1或2; 和c和d代表0,1,2,3或4; 其中b和c之和为5或更小; 当a为2以上时,R可以相同或不同; 当c为2以上时,R1可​​以相同或不同; 当d为2或更多时,R2的可能相同或不同。