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    Process for the production of p-nitrophenols
    121.
    发明授权
    Process for the production of p-nitrophenols 失效
    生产对硝基苯酚的方法

    公开(公告)号：US3848002A

    公开(公告)日：1974-11-12

    申请号：US27721572

    申请日：1972-08-02

    Applicant: CHEMINOVE AS

    Inventor： WEIS J ,  PEDERSEN B

    IPC: C07C67/00 ,  C07C201/00 ,  C07C205/22 ,  C07C207/04 ,  C07C79/24

    CPC classification number: C07C201/00 ,  C07C201/06 ,  C07C207/04 ,  C07C205/22

    Abstract: 1. A PROCESS FOR THE PRODUCTION OF P-NITROPHENOLS WHICH COMPRISES (A) MIXING (1) A NITRILE OF THE FORMULA R.O.NO, IN WHICH R IS AN ALKYL GROUP HAVING 1-6 CARBON ATOMS WITH (2) PHENOLS SELECTED FROM THE GROUP CONSISTING ESSENTIALLY OF PHENOL, M-CRESOL AND A MIXTURE OF MAND P-CRESOL IN AN ACIDIC AQUEOUS MEDIUN WHICH IS AN AQUEOUS SOLUTION OF A STRONG ACID AT TEMPERATURES RANGING FROM -20* TO 20*C TO FORM A PRECURSOR P-NITROSOPHENOL; AND (B) TREATING THE P-NITROSOPHENOL WITH NITRIC ACID IN THE PRESENCE OF AN ALCOHOL OF THE FORMULA R1OH, IN WHICH R1 IS AN ALKYL GROUP HAVING 1-6 CARBON ATOMS, AT TEMPERATURES RANGING FROM ABOUT -10* TO 25*C.; AND (C) RECOVERING A P-NITRO-PHENOL

    니트로화 반응 장치 및 니트로화 방법
    125.
    发明公开
    니트로화 반응 장치 및 니트로화 방법 有权
    用于硝化反应和硝化方法的装置

    公开(公告)号：KR1020120055263A

    公开(公告)日：2012-05-31

    申请号：KR1020100116898

    申请日：2010-11-23

    Applicant: 주식회사 엘지화학

    Inventor： 변영창 ,  최재훈 ,  엄성식 ,  고동현 ,  홍무호 ,  서정현 ,  김유석 ,  송인협

    IPC: C07B43/02 ,  B01J19/00 ,  C07C201/06

    CPC classification number: B01J19/00 ,  B01F13/0059 ,  C07B43/02 ,  C07C201/06

    Abstract: PURPOSE: A nitration reactive device is provided not to cause side reaction, etc, to conduct nitration effectively in short reaction time at high temperature, and to facilitate the expansion of nitration to industrial magnitude without danger of explosion, use of toxic material, etc. CONSTITUTION: A nitration reactive device comprises a micro mixer(11), and a heat exchanger(12). Mixture of an organic compound and a nitrating agent is formed by putting the organic compound and the nitrating agent into a micro mixer. The heat exchanger is connected to a micro mixer. The mixture formed in the micro mixer is put into the heat exchanger, thereby the nitration of the organic compound in the mixture is conducted.

    Abstract translation: 目的：提供不引起副反应的硝化反应装置，在短时间内在高温下有效地进行硝化，并有利于硝化扩大到工业规模，没有爆炸危险，使用有毒物质等。 构成：硝化反应装置包括微混合器（11）和热交换器（12）。 有机化合物和硝化剂的混合物通过将有机化合物和硝化剂置于微混合器中而形成。 热交换器连接到微型混合器。 在微混合器中形成的混合物放入热交换器中，从而进行混合物中有机化合物的硝化。

    NITROBENZENE COMPOUND MANUFACTURING METHOD
    130.
    发明授权
    NITROBENZENE COMPOUND MANUFACTURING METHOD 有权
    硝基苯化合物的制造方法

    公开(公告)号：EP2754651B1

    公开(公告)日：2017-12-06

    申请号：EP12807434.1

    申请日：2012-07-04

    Applicant: Kumiai Chemical Industry Co., Ltd.

    Inventor： TANI, Shinki ,  YADOMATSU, Nami ,  IKUMI, Akiko ,  HIRANO, Yuuki ,  IDO, Takuya

    IPC: C07C201/06 ,  C07B61/00 ,  C07C205/06 ,  C07C227/08 ,  C07C229/56

    CPC classification number: C07C201/06 ,  C07C205/06 ,  C07C205/58

    Abstract: There is provided a method for producing a nitrobenzene compound that can be implemented by a simple operation under mild conditions without using a special reaction apparatus. [Solution] The present invention provides a method for producing a nitrobenzene compound represented by general formula (2), wherein R 1 and R 5 are the same or different, and each is a halogen atom or another functional group, and R 2 , R 3 , and R 4 are the same or different, and each is a hydrogen atom or another functional group, comprising oxidizing an aniline compound represented by general formula (1), wherein R 1 , R 2 , R 3 , R 4 , and R 5 are the same as described above, with hydrogen peroxide in the presence of a tungsten compound under an acidic condition, followed by oxidation with hydrogen peroxide under a neutral to alkaline condition.

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