PROCESS FOR PREPARING 2,6-DIALKYLNAPHTALENE
    7.
    发明申请
    PROCESS FOR PREPARING 2,6-DIALKYLNAPHTALENE 审中-公开
    制备2,6-二羟基苯甲酸的方法

    公开(公告)号:WO00061529A1

    公开(公告)日:2000-10-19

    申请号:PCT/JP1999/001880

    申请日:1999-04-08

    摘要: A process for producing 2,6-dialkylnaphtalene from a hydrocarbon feedstock that contains at least one component selected from the group consisting of dialkylnaphtalene isomers, monoalkynaphtalene isomers, polyalkylnaphtalenes, and naphtalene, is provided that includes the following steps: I) separating the hydrocarbon feedstock and/or a dealkylation product fed from step III into a naphtalene fraction, a monoalkylnaphtalene fraction, a dialkylnaphtalene fraction and a remaining products fraction; II) separating and purifying 2,6-dialkylnaphtalene from the dialkylnaphtalene fraction of step I; III) dealkylating the hydrocarbon feedstock and/or the remaining products fraction of step I and feeding the dealkylation product to step I; and IV) alkylating the naphtalene and monoalkylnaphtalene fractions of step I; wherein the hydrocarbon feedstock is fed to step I or step III.

    摘要翻译: 提供了一种从含烃原料生产2,6-二烷基萘的方法,该方法包含至少一种选自二烷基萘异构体,单链烯异构体,聚烷基萘和萘的组分,其包括以下步骤:I)将烃原料 和/或从步骤III进料到脱硝馏分,单烷基萘馏分,二烷基萘馏分和剩余产物馏分中的脱烷基化产物; II)从步骤I的二烷基萘馏分中分离和纯化2,6-二烷基萘; III)使烃原料和/或步骤I的剩余产物馏分脱烷基化并将脱烷基产物进料至步骤I; 和IV)烷基化步骤I的萘和单烷基萘馏分; 其中将烃原料进料至步骤I或步骤III。

    METHOD OF PRODUCING PURIFIED CYCLOPENTANE
    8.
    发明申请
    METHOD OF PRODUCING PURIFIED CYCLOPENTANE 审中-公开
    生产纯化环丙烷的方法

    公开(公告)号:WO00020361A1

    公开(公告)日:2000-04-13

    申请号:PCT/US1999/022693

    申请日:1999-09-29

    IPC分类号: C07C13/10

    摘要: A process for producing cyclopentane from by-product streams containing cyclopentene consists of distilling the cyclopentene from the feedstream and then hydrotreating the cyclopentene-containing fraction to cyclopentane. A second distillation step may then be employed to remove the hydrocarbons which are lighter than cyclopentane. The process has particular applicability in the treatment of feedstreams containing neo-hexane. The cyclopentene is easily separated from the neo-hexane in a conventional fractionator.

    摘要翻译: 从含有环戊烯的副产物流产生环戊烷的方法是从进料流中蒸馏出环戊烯,然后将含环戊烯馏分加氢处理成环戊烷。 然后可以采用第二蒸馏步骤来除去比环戊烷更轻的烃。 该方法在含有新己烷的进料流的处理中具有特别的适用性。 常规分馏塔中环戊烯容易与新己烷分离。