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    • 7. 发明授权
    • Process for preparing dialkylnaphthalene
    • 制备二烷基萘的方法
    • US6011190A
    • 2000-01-04
    • US887052
    • 1997-07-02
    • Masahiro MotoyukiKoji YamamotoAjit Vishwanath SapreJohn Paul McWilliams
    • Masahiro MotoyukiKoji YamamotoAjit Vishwanath SapreJohn Paul McWilliams
    • B01J29/04C07B61/00C07C2/66C07C6/12C07C15/24C07C1/01C07C2/64C07C2/68C07C5/22
    • C07C15/24C07C2/66C07C6/126C07C2529/70
    • 2,6-Dialkylnaphthalene is prepared from a feedstock comprising naphthalene and an alkylating agent, by a process comprising the steps:(I) transalkylating isomers of dialkylnaphthalene and naphthalene to produce monoalkylnaphthalene and isomers of dialkylnaphthalene;(II) separating the product obtained in step (I) into naphthalene, monoalkylnaphthalene, dialkylnaphthalene and other components;(III) alkylating the monoalkylnaphthalene fraction from step (II) with an alkylating agent to produce dialkylnaphthalene; and(IV) separating 2,6-dialkylnaphthalene from the dialkylnaphthalene fraction in step (II),wherein at least step (I) or step (III) is conducted in the presence of a catalyst having a composition comprising a synthetic zeolite having an X-ray diffraction pattern with an interplanar d-spacing (.ANG.)______________________________________ 12.36 .+-. 0.4 11.03 .+-. 0.2 8.83 .+-. 0.14 6.18 .+-. 0.12 6.00 .+-. 0.10 4.06 .+-. 0.07 3.91 .+-. 0.07 3.42 .+-. 0.06. ______________________________________
    • 2,6-二烷基萘由包含萘和烷基化剂的原料制备,通过包括以下步骤的方法制备:(I)将烷基萘和萘的异构体转烷基化以产生单烷基萘和二烷基萘的异构体; (II)将步骤(I)中获得的产物分离成萘,单烷基萘,二烷基萘等组分; (III)用烷基化剂烷基化来自步骤(II)的单烷基萘馏分以制备二烷基萘; 和(IV)在步骤(II)中从二烷基萘馏分中分离2,6-二烷基萘,其中至少步骤(I)或步骤(III)在具有包含具有X 具有面间d间距(ANGSTROM)的-ray衍射图 - 12.36 +/- 0.4-11.03 +/- 0.2-8.83 +/- 0.14-6.18 +/- 0.12- 6.00 +/- 0.10-4.06 +/- 0.07- 3.91 +/- 0.07 - 3.42 +/- 0.06。 -