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    Catalytic process of no oxidation of dialkylnaphthalenes
    4.
    发明授权
    Catalytic process of no oxidation of dialkylnaphthalenes 失效
    不氧化二烷基磷酸的催化过程

    公开(公告)号：US3637830A

    公开(公告)日：1972-01-25

    申请号：US3637830D

    申请日：1968-11-25

    申请人： SUN OIL CO

    发明人： VANDERWERFF WILLIAM D ,  PETERSON HENRY J

    IPC分类号： C07C45/36 ,  C07C51/265 ,  C07C51/275 ,  C07C51/31 ,  C07C47/52 ,  C07C63/02

    CPC分类号： C07C51/316 ,  C07C45/36 ,  C07C51/265 ,  C07C51/275 ,  C07C65/30 ,  C07C63/38

    摘要： USEFUL PARTIAL OXIDATION PRODUCTS OF DIALKYLNAPHTHALENES, SUCH AS THE NAPHTHALENEDICARBOXALDEHYDE AND THE NAPHTHALENEDICARBOXYLIC ACID ARE PREPARED BY USING MOLECULAR OXYGEN AND A CATALYTIC AMOUNT OF NITRIC OXIDE OR NITROGEN DIOXIDE, THAT IS SUBSTANTIALLY LESS THAN THE STOICHIOMETRIC AMOUNT OF NITROGEN DIOXIDE NECESSARY TO OXIDIZE THE DIALKYLNAPHTHALENES. THE CATALYST IS A COMBINATION OF 0.01 MOLES TO 0.6 MOLE OF THE NITROGEN OXIDE PER MOLE OF DIALKYLNAPHTHALENE AND 0.1 TO 6 WEIGHT PERCENT OF SELENIUM. THE OXIDATIONS ARE CARRIED AT SUPERATMOSPHERIC PRESSURES IN A CLOSED SYSTEM AT TEMPERATURES OF ABOUT 160275* C. OXYGEN IS ADDED IN AT LEAST THE STOICHIOMETRIC AMOUNT NEEDED FOR THE OXIDATIONS. IN THE TEMPERATURE RANGE OF ABOUT 160-225* C. THE DIALDEHYDE IS THE PREDOMINANT PRODUCT; AT ABOUT 225 TO 275* C. THE DIACID PREDOMINATES.