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    METHOD FOR RECOVERING CARBAZOLE
    2.
    发明专利
    METHOD FOR RECOVERING CARBAZOLE 失效

    公开(公告)号：JP2002037775A

    公开(公告)日：2002-02-06

    申请号：JP2000223910

    申请日：2000-07-25

    Applicant: NIPPON STEEL CHEMICAL CO

    Inventor： SENZAKI TOSHIHIDE ,  IMAMURA TAKAHIRO

    IPC: C07D209/84 ,  B01J20/18

    Abstract: PROBLEM TO BE SOLVED: To efficiently adsorb and separate carbazole from a mixture containing the carbazole and further anthracene, phenanthrene, or the like. SOLUTION: An aromatic hydrocarbon mixture containing the carbazole is brought into contact with a faujasite type zeolite adsorbent to separate and recover the carbazole by an adsorptive separating method. Y faujasite type zeolite substituted with sodium or potassium ions is cited as a perferred faujasite type zeolite adsorbent.

    Recovery of carbazole
    3.
    发明专利
    Recovery of carbazole 失效
    卡巴唑的恢复

    公开(公告)号：JPS61118365A

    公开(公告)日：1986-06-05

    申请号：JP23824384

    申请日：1984-11-14

    Applicant: Sumitomo Metal Ind Ltd

    Inventor： YAO TADASHI ,  HAYAKAWA KEIICHI ,  KURACHI KAZUHITO

    IPC: C07D209/84

    Abstract: PURPOSE: To separate the titled substance useful as a plasticizer, electrically insulating synthetic resin, etc., in high purity, at a low cost, with stable opera tion, by cooling the fraction obtained by the hydrogenation of a liquefied oil in a coal liquefaction process, and separating the carbazole precipitated in the cooled liquid.
    CONSTITUTION: Coal is liquefied by reacting with hydrogen in a solvent at 430W470°C under hydrogen pressure of 100W200 kg/cm
    2 in the presence of a coal liquefaction catalyst (an easily available inexpensive iron catalyst such as red mud, iron ore, or an iron mill waste such as converter dust is used in an amount of about 1W5% based on the coal). The liquefied product is distilled under reduced pressure and divided into the liquefied product fraction having a boiling point of ≤200≥C and a solvent fraction h-aving a boiling point of 200W538°C. The fraction of 200W538°C is hydrogenated at 300W400°C under hydrogen pressure of 100W200 kg/cm
    2 in the presence of a hydrogenation cata lyst. The hydrogenated fraction is cooled to precipitate a solid component in the cooled liquid and an oil is emoved from the solid component to recover the objective substance.
    COPYRIGHT: (C)1986,JPO&Japio

    Abstract translation: 目的：通过将煤液化中的液化石油氢化得到的馏分冷却，以稳定的操作，以低成本，高纯度地分离作为增塑剂，电绝缘性合成树脂等的标题物质 处理和分离在冷却液中析出的咔唑。 构成：在煤液化催化剂（易于获得的廉价铁催化剂如红色）存在下，在氢气压力为100-200kg / cm 2的条件下，在430-470℃的溶剂中，使氢气与氢气液化 泥土，铁矿石或铁粉废物如转炉粉尘的使用量约为1-5％，基于煤）。 将液化产物在减压下蒸馏，并分成沸点<= 200> = C的液化产物馏分和沸点为200-538℃的溶剂馏分。 在加氢塔的存在下，在300-400℃氢气压力为100-200kg / cm 2的条件下氢化200-538℃。 将氢化馏分冷却以在冷却的液体中沉淀固体组分，并从固体组分中喷出油以回收目标物质。

    SEPARATION OF ANTHRACENE AND CARBAZOLE
    4.
    发明专利
    SEPARATION OF ANTHRACENE AND CARBAZOLE 失效

    公开(公告)号：JPS58103327A

    公开(公告)日：1983-06-20

    申请号：JP20014081

    申请日：1981-12-14

    Applicant: JAPAN GASOLINE

    Inventor： TANAKA HIROSHI

    IPC: C07D209/84 ,  C07C1/00 ,  C07C7/10 ,  C07C15/28 ,  C07C67/00

    Abstract: PURPOSE:A mixture containing anthracene and carbazole is made to contact with DMF having excellent selective dissolving power as an extractant, and separated into the extract phase and the residual phase, and anthracene and carbozole are recovered from respective phase easily, in high recovery and purity. CONSTITUTION:A mixture containing anthracene and carbazole (crude anthracene preprared from coal tar) is made to contact with DMF and separated into the extract phase rich in carbazole and the residual phase rich in anthracene. Carbazole and anthracene are recovered from the extract phase and the residual phase, respectively. The amount of DMF is 0.5-6pts.wt. per 1pt.wt. of the mixture. Since the necessary amount of the solvent per unit weight of the mixture can be reduced, the scale of the treating apparatus can be minimized. Furthermore, DMF has low odor and is easily handleable and inexpensive.

    PURIFICATION OF CARBAZOLE
    8.
    发明专利
    PURIFICATION OF CARBAZOLE 失效

    公开(公告)号：JPH05178829A

    公开(公告)日：1993-07-20

    申请号：JP34689891

    申请日：1991-12-27

    Applicant: OSAKA GAS CO LTD

    Inventor： YUTSU SATOSHI ,  SUDA YASUHIRO

    IPC: C07D209/84 ,  C07B63/00

    Abstract: PURPOSE:To obtain high-purity carbazole from a carbazole-containing oil obtained by the fractional distillation of coal tar. CONSTITUTION:Carbazole is purified by adding a polyalkylene glycol to a carbazole-containing oil and distilling the mixture.

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