用於製備硝酸酯的方法 PROCESS FOR THE PRODUCTION OF ESTERS OF NITRIC ACID
    213.
    发明专利
    用於製備硝酸酯的方法 PROCESS FOR THE PRODUCTION OF ESTERS OF NITRIC ACID 审中-公开
    用于制备硝酸酯的方法 PROCESS FOR THE PRODUCTION OF ESTERS OF NITRIC ACID

    公开(公告)号:TW201139337A

    公开(公告)日:2011-11-16

    申请号:TW100110951

    申请日:2011-03-30

    IPC: C07C

    CPC classification number: C07C201/02 C07C203/04

    Abstract: 有機硝酸酯係藉由以下步驟自一元醇、二元醇或多元醇製備(i)將以下物質同時饋入第一連續流動微型反應器單元中(a)濃硝酸,(b)乙酸酐,(c)視情況選用之催化量的並非硝酸之強無機酸,及(d)視情況選用之溶劑,從而獲得乙醯硝酸酯溶液,及(ii)將步驟(i)中獲得之乙醯硝酸酯溶液及呈液體形式或溶於溶劑中之該一元醇、二元醇或多元醇同時饋入第二連續流動微型反應器中,從而獲得該有機硝酸酯溶液,及(iii)視情況,將該有機硝酸酯自步驟(ii)獲得之該溶液中分離出來。本發明方法尤其適用於諸如1,4-丁二醇之二元醇的單硝化反應。

    Abstract in simplified Chinese: 有机硝酸酯系借由以下步骤自一元醇、二元醇或多元醇制备(i)将以下物质同时馈入第一连续流动微型反应器单元中(a)浓硝酸,(b)乙酸酐,(c)视情况选用之催化量的并非硝酸之强无机酸,及(d)视情况选用之溶剂,从而获得乙酰硝酸酯溶液,及(ii)将步骤(i)中获得之乙酰硝酸酯溶液及呈液体形式或溶于溶剂中之该一元醇、二元醇或多元醇同时馈入第二连续流动微型反应器中,从而获得该有机硝酸酯溶液,及(iii)视情况,将该有机硝酸酯自步骤(ii)获得之该溶液中分离出来。本发明方法尤其适用于诸如1,4-丁二醇之二元醇的单硝化反应。

    SAFE METHOD FOR PRODUCING ALKYL NITRATE
    218.
    发明申请
    SAFE METHOD FOR PRODUCING ALKYL NITRATE 有权
    生产硝酸亚烷基酯的安全方法

    公开(公告)号:US20150031909A1

    公开(公告)日:2015-01-29

    申请号:US14374031

    申请日:2012-12-21

    CPC classification number: C07C201/02 C07C203/04

    Abstract: The present invention provides a method for producing alkyl nitrate. The centrifugal extraction equipment acts as the esterification separator; a mixed acid solution containing sulfuric acid and nitric acid enters from the heavy phase inlet of the centrifugal extraction equipment; alkyl alcohol enters from the light phase inlet of the centrifugal extraction equipment; the feeding molar ratio of alkyl alcohol and nitric acid equals to 1:1.0-3.0; esterification reaction occurs with the mixed acid and alkyl alcohol at a temperature of 10˜60° C. under the rotating speed of 800-2000 r/min; under the action of centrifugal force, the generated coarse ester as a light phase and the spent acid as a heavy phase are separated; coarse ester as a light phase is discharged through the light-phase outlet of the centrifugal extractor; the spent acid as a heavy phase is discharged through the heavy-phase outlet of the centrifugal extractor; after alkali washing and water washing conventionally, coarse ester is dehydrated for drying and purified, then the refining products of alkyl nitrate is obtained. In the method of the present invention, esterification reaction, the separation of reaction products and the spent acid are finished in the same reactor simultaneously, which reduces the contact time of reaction products with the spent acid greatly, avoids the side reaction effectively, and ensures the safety of esterification process.

    Abstract translation: 本发明提供硝酸烷基酯的制造方法。 离心萃取设备作为酯化分离器; 含有硫酸和硝酸的混合酸溶液从离心萃取设备的重相入口进入; 烷基醇从离心萃取设备的轻相进口进入; 烷基醇和硝酸的进料摩尔比等于1:1.0-3.0; 在混合酸和烷基醇的温度为10〜60℃,以800〜2000r / min的转速进行酯化反应; 在离心力作用下,生成的粗酯为轻质相,废酸为重相分离; 粗酯作为轻相通过离心萃取器的光相出口排出; 作为重相的废酸通过离心萃取器的重相出口排出; 在碱洗和水洗常规之后,将粗酯脱水干燥和纯化,得到硝酸烷基酯的精制产物。 在本发明的方法中,酯化反应,反应产物和废酸的分离同时在同一反应器中完成,这大大降低了反应产物与废酸的接触时间,有效避免了副反应,确保了 酯化过程的安全性。

    Methods of producing nitrate esters
    220.
    发明授权
    Methods of producing nitrate esters 有权
    生产硝酸酯的方法

    公开(公告)号:US08658818B2

    公开(公告)日:2014-02-25

    申请号:US12953111

    申请日:2010-11-23

    CPC classification number: C07C201/02 C07C203/04 C07C203/06

    Abstract: Methods of forming a nitrate ester include combining at least one nitrate salt and sulfuric acid to form a nitrating solution and adding an aliphatic polyol to the nitrating solution. Nitrate esters formed by this method may be, for example, triethylene glycol dinitrate (TEGDN), pentaerythritol tetranitrate (PETN), diglycerol tetranitrate (DGTN), 1,1,1-tris(methylol)ethane trinitrate (TMETN), 1,2,4-butanetriol trinitrate (BTTN), nitroglycerin (NG), diethylene glycol dinitrate (DEGDN), ethylene glycol dinitrate (EGDN), metriol trinitrate (MTN), nitrocellulose (NC), or 1,2-propanediol dinitrate (PDDN).

    Abstract translation: 形成硝酸酯的方法包括组合至少一种硝酸盐和硫酸以形成硝化溶液,并向该硝化溶液中加入脂族多元醇。 通过该方法形成的硝酸酯可以是例如三乙二醇二硝酸酯(TEGDN),季戊四醇四硝酸酯(PETN),二甘油四硝酸酯(DGTN),1,1,1-三(羟甲基)乙烷三硝酸酯(TMETN),1,2 硝酸甘油(NG),硝酸甘油(NG),二乙二醇二硝酸酯(DEGDN),乙二醇二硝酸酯(EGDN),三硝酸三甲酯(MTN),硝化纤维素(NC)或1,2-丙二醇二硝酸酯(PDDN)。

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