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12 条记录 (耗时 0.012 秒)

    Purification of alkylated anthraquinones
    3.
    发明授权
    Purification of alkylated anthraquinones 失效
    烷基化蒽醌的纯化

    公开(公告)号：US4544543A

    公开(公告)日：1985-10-01

    申请号：US488576

    申请日：1983-04-25

    申请人： Nathan D. Lee ,  Dalbir S. Sethi

    发明人： Nathan D. Lee ,  Dalbir S. Sethi

    IPC分类号： C07C50/18 ,  C07C20060101 ,  C07C45/00 ,  C07C46/10 ,  C07C50/16 ,  C07C67/00 ,  C01B15/023

    CPC分类号： C07C50/16

    摘要： The invention is for a process for removing unalkylated anthraquinones from alkylated anthraquinone by forming a solution thereof, reducing the solution sufficiently so that at least part of the unalkylated anthraquinone is in the reduced form, and extracting the reduced solution in the absence of an oxidizing agent with an aqueous alkaline solution. The process is especially suited for removing anthraquinone from an alkylated anthraquinone for use in the manufacture of hydrogen peroxide by reducing and oxidizing a solution of the alkylated anthraquinone.

    摘要翻译： 本发明涉及通过形成其溶液从烷基化蒽醌中除去未烷基化的蒽醌的方法，使溶液充分还原，使得至少一部分未烷基化的蒽醌为还原形式，并在不存在氧化剂的情况下萃取还原溶液 用碱性水溶液。 该方法特别适用于通过还原和氧化烷基化蒽醌的溶液从用于制造过氧化氢的烷基化蒽醌中除去蒽醌。

    Process for purifying a working compound
    9.
    发明授权
    Process for purifying a working compound 失效
    纯化工作化合物的方法

    公开(公告)号：US4824609A

    公开(公告)日：1989-04-25

    申请号：US141387

    申请日：1988-01-07

    申请人： Dalbir S. Sethi

    发明人： Dalbir S. Sethi

    IPC分类号： C01B15/023 ,  C07C45/00 ,  C07C46/10 ,  C07C67/00 ,  C07C50/18

    CPC分类号： C01B15/023

    摘要： A process is provided to remove inert contaminants from a working compound employed for the manufacture of hydrogen peroxide by the reduction and oxidation of a solution of alkylated anthraquinones and derivatives. The contaminants are removed by the process of contacting the working compound, a solvent, and carbon dioxide to form a first portion and a residue portion, separating the two portions and recovering the purified working solution from the first portion.

    Process for purifying a working solution
    10.
    发明授权
    Process for purifying a working solution 失效
    纯化工作溶液的方法

    公开(公告)号：US4668436A

    公开(公告)日：1987-05-26

    申请号：US808801

    申请日：1985-12-13

    申请人： Dalbir S. Sethi

    发明人： Dalbir S. Sethi

    IPC分类号： C01B15/023 ,  C07C50/18

    CPC分类号： C01B15/023

    摘要： A process is provided to regenerate and purify a working solution for the manufacture of hydrogen peroxide by the reduction and oxidation of a solution of alkylated anthraquinones and derivatives. The regeneration and purification is effected by removing inerts by contacting the working solution and an noncyclic hydrocarbon to form a liquid first phase and a second phase, separating the two phases and recovering both the noncyclic hydrocarbon and the purified working solution by distillation.

    摘要翻译： 提供了通过还原和氧化烷基化蒽醌及其衍生物的溶液来再生和纯化用于制造过氧化氢的工作溶液的方法。 通过使工作溶液和非环状烃接触以形成液体第一相和第二相，分离两相并通过蒸馏回收非循环烃和纯化的工作溶液来除去惰性物质来进行再生和纯化。