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    PRODUCTION OF ANHYDROUS MAGNESIUM HALIDE
    1.
    发明专利
    PRODUCTION OF ANHYDROUS MAGNESIUM HALIDE 失效

    公开(公告)号：JPH08133723A

    公开(公告)日：1996-05-28

    申请号：JP17919995

    申请日：1995-07-14

    Applicant: MITSUI PETROCHEMICAL IND

    Inventor： SUZUKI CHIKAFUMI ,  KANEDA MITSUHIRO ,  TAKEDA MASAYUKI

    IPC: B01J31/38 ,  C01F5/34 ,  C08F4/60 ,  C08F4/654

    Abstract: PURPOSE: To produce anhydrous magnesium halide from an inexpensively obtainable starting material with a simple method by passing an inert gas through a mixed solution of hydrous magnesium halide and an oxygen containing organic solvent to remove water by distillation. CONSTITUTION: The desired anhydrous magnesium halide is obtained by passing the inert gas through the mixed solution of hydrous magnesium halide and the oxygen containing organic solvent to remove water by distillation. As the inert gas to be passed through the mixed solution, a gas which does not react with moisture contained in the mixed solution of magnesium chloride, the oxygen containing organic solvent and water is used. And gaseous nitrogen is most preferably used from an economical view point of in these gases. It is preferable that the inert gas does not substantially contain water. In this case, containing substantially no moisture means that the dew point of the inert gas is

    4-METHYLDIPHENYL ETHERS AND 4,4'-DIMETHYLDIPHENYL ETHERS
    6.
    发明专利
    4-METHYLDIPHENYL ETHERS AND 4,4'-DIMETHYLDIPHENYL ETHERS 失效

    公开(公告)号：JPH0421648A

    公开(公告)日：1992-01-24

    申请号：JP12336790

    申请日：1990-05-14

    Applicant: MITSUI PETROCHEMICAL IND

    Inventor： FUJITA TERUNORI ,  KANEDA MITSUHIRO ,  ONO HIROYASU ,  TAKAHATA KAZUNORI

    IPC: B01J21/16 ,  B01J27/125 ,  B01J31/10 ,  C07B61/00 ,  C07C41/30 ,  C07C43/263

    Abstract: PURPOSE:To prepare the subject compound in high selectivity by transalkylating diphenyl ether and/or 4-methyldiphenyl ether with penta-or hexamethylbenzene or a specific polymethylnaphthalene as a methylating agent. CONSTITUTION:Diphenyl ether and/or 4-methyldithenyl ether is transmethylated with pentamethylbenzene, hexamethylbenzene or a polymethylnaphthalene having five or more nucleus-substituted methyl groups as a methylating agent under a relatively mild reaction condition to prepare 4-methyldiphenyl ether and/or 4,4'-dimethyldiphenyl ether in high selectivity. Hexamethylbenzene, octamethylnaphthalene, heptamethylnaphthalene, etc., are preferable as the methylating agent. The prepared compounds are useful as raw materials for 4,4'-diphenyl ether dicarboxylic acid.

    CATALYST FOR POLYMERIZATION OF OLEFIN AND POLYMERIZATION OF OLEFIN
    7.
    发明专利
    CATALYST FOR POLYMERIZATION OF OLEFIN AND POLYMERIZATION OF OLEFIN 失效

    公开(公告)号：JPH05170819A

    公开(公告)日：1993-07-09

    申请号：JP33896191

    申请日：1991-12-20

    Applicant: MITSUI PETROCHEMICAL IND

    Inventor： MUKOYAMA MITSUAKI ,  OUCHI KUNIHIRO ,  KANEDA MITSUHIRO ,  MINAMI SHUJI

    IPC: C08F4/652 ,  C08F4/60 ,  C08F4/659 ,  C08F10/00

    Abstract: PURPOSE:To obtain an olefin polymer having a narrow molecular weight distribution and narrow compositional distribution in high polymerization activity. CONSTITUTION:The title catalyst comprises a transition metal compound catalyst component prepared by bringing a transition metal compound of the general formula: (R COCR COR )mMX4-m (wherein M is Zr or Hf; X is halogen or-SO3 CF3) into contact with an organometallic compound of the general formula: Cp Y or Y Cp -R -Cp Y (wherein Cp , Cp and Cp are each a group containing a cyclopentadienyl skeleton; and Y , Y and Y are each Li, Na or K) and an organoalminumoxy compound. The title process comprises polymerizing an olefin in the presence of the above catalyst.

    PRODUCTION OF 2,6-DIETHYLNAPHTHALENE
    8.
    发明专利
    PRODUCTION OF 2,6-DIETHYLNAPHTHALENE 失效

    公开(公告)号：JPH0585963A

    公开(公告)日：1993-04-06

    申请号：JP31758291

    申请日：1991-09-24

    Applicant: MITSUI PETROCHEMICAL IND

    Inventor： FUJITA TERUNORI ,  KANEDA MITSUHIRO ,  OOMATSUZAWA TAKESHI ,  TAKAHATA KAZUNORI

    IPC: B01J29/18 ,  C07B61/00 ,  C07C6/12 ,  C07C15/24

    Abstract: PURPOSE:To produce 2,6-diethylnaphthalene on an industrial scale at a low cost in high yield by using mordenite as a catalyst and carrying out trans- ethylation using ethylnaphthalene as an ethylation agent as it is. CONSTITUTION:2,6-Diethylnaphthalene is produced by the transethylation of ethylnaphthalene (preferably 1- or 2-ethylnaphthalene) (preferably in liquid phase) using mordenite as a catalyst. The amount of mordenite is 0.001-500wt.% (preferably 0.05-200wt.%) based on ethylnaphthalene and the reaction temperature is 100-450 deg.C (preferably 130-300 deg.C).

    PRODUCTION OF 2,6-DIALKYLNAPHTHALENE
    9.
    发明专利
    PRODUCTION OF 2,6-DIALKYLNAPHTHALENE 失效

    公开(公告)号：JPH0585962A

    公开(公告)日：1993-04-06

    申请号：JP31758191

    申请日：1991-09-24

    Applicant: MITSUI PETROCHEMICAL IND

    Inventor： FUJITA TERUNORI ,  OOMATSUZAWA TAKESHI ,  KANEDA MITSUHIRO ,  TAKAHATA KAZUNORI

    IPC: B01J29/08 ,  C07B61/00 ,  C07C5/27 ,  C07C15/24

    Abstract: PURPOSE:To obtain the subject compound useful as a raw material for polymer and production raw material for pharmaceuticals and agricultural chemicals in high yield by using a specific faujasite-type zeolite as a catalyst and isomerizing a mixed dialkylnaphthalene in high efficiency. CONSTITUTION:A 2,6-dialkylnaphthalene is produced by isomerizing a dialkylnaphthalene of formula (Naph is naphthalene ring; R is methyl or ethyl; R is ethyl or isopropyl) by using a catalyst consisting of a proton-containing faujasite-type zeolite or a faujasite-type zeolite produced by substituting a part of the proton with alkali metal ion or alkaline-earth metal ion (especially preferably Y-type faujasite-type zeolite, particularly super-stable Y-type faujasite-type zeolite). The catalyst is e.g. protonic super-stable Y-type zeolite or proton- barium-type super-stable Y-type zeolite).

    PRODUCTION OF 2,6-DIMETHYLNAPHTHALENE
    10.
    发明专利
    PRODUCTION OF 2,6-DIMETHYLNAPHTHALENE 失效

    公开(公告)号：JPH04120029A

    公开(公告)日：1992-04-21

    申请号：JP24184090

    申请日：1990-09-11

    Applicant: MITSUI PETROCHEMICAL IND

    Inventor： KANEDA MITSUHIRO ,  FUJITA TERUNORI ,  ONO HIROYASU ,  TAKAHATA KAZUNORI

    IPC: B01J27/125 ,  C07B61/00 ,  C07C6/12 ,  C07C15/24

    Abstract: PURPOSE:To obtain the subject compound in high selectivity by subjecting naphthalene or 2-methylnaphthalene to methylation by using aluminum chloride (or bromide) as a catalyst and polymethylbenzene as a methylation agent in the presence of an aromatic nitro compound. CONSTITUTION:Naphthalene or 2-methylnaphthalene is subjected to methylation with using aluminum chloride or aluminum bromide as a catalyst and polymethylbenzene, especially hexamethylbenzene as a methylation agent in the presence of an aromatic nitro compound, preferably nitrobenzene or nitronaphthalene containable of alkyl group, especially nitrobenzene, 2.6- dimethylnitrobenzene or nitromesitylene to afford 2,6-dimethylnaphthalene as a precursor of 2,6-naphthalene dicarboxylic acid useful as, e.g. a raw material of polyester from a reaction mixture in high selectivity as possible as separating by crystallization.

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