Isomerization of isopropyl naphthalene
    10.
    发明授权
    Isomerization of isopropyl naphthalene 失效
    异丙基萘的异构化

    公开(公告)号:US3845149A

    公开(公告)日:1974-10-29

    申请号:US35640673

    申请日:1973-05-02

    申请人: HOECHST AG

    摘要: 1. A PROCESS FOR THE ISOMERIZATION OF A-ISOPROPYLNAPHTHALENE TO B-ISOPROPYL NAPHTHALENE WITH AN ALUMINIUM CHLORIDE IN AMOUNTS OF 0.05 TO 0.8% BY WEIGHT ALUMINUM CHLORIDE IN AMOUNTS OF 0.05 TO 0.8% BY WEIGHT OR ETHYL ALUMINUM DICHLORIDE IN AMOUNTS OF 0.5 TO 1.5% BY WEIGHT OR A MIXTURE THEREOF, EACH CALCULATED ON THE TOTAL QUANTITY OF THE INITIAL ALKYLATED NAPHTHALENE, THE PORTION OF THE B-ISOMERIC MONO - ISOPROPYL NAPHTHALENE BEING AT LEAST 92%, CALCULATED ON THE TOTAL MONO-ISOMER PORTION AND THE TOTAL PORTION OF THE MONO-ISOPROPYL-NAPHTHALENE EXCEEDING 70% BY WEIGHT, CALCULATED ON THE TOTAL AMOUNT OF ALKYLATED NAPHTHALENES, AT A TEMPERATURE OF FROM 40 TO 200* C.