Method for producing c1-c4 alkyl nitrite
    77.
    发明专利
    Method for producing c1-c4 alkyl nitrite 有权
    生产C1-C4烷基硝酸盐的方法

    公开(公告)号:JP2011236209A

    公开(公告)日:2011-11-24

    申请号:JP2011090875

    申请日:2011-04-15

    CPC classification number: C07C201/04 C07C203/00

    Abstract: PROBLEM TO BE SOLVED: To provide a new method for producing C-Calkyl nitrite having advantage of high selectivity of C-Calkyl nitrite.SOLUTION: This method for producing C-Calkyl nitrite includes processes for: loading a resin catalyst layer and/or a porous filler layer into a reactor; passing nitrogen oxide, oxygen and C-Calcohol as raw materials through the resin catalyst layer and/or porous filler layer in a counter current, parallel current or cross current manner; and reacting under the reaction conditions including a reaction temperature of 0-150°C, a reaction pressure of -0.09 to 1.5 MPa, a molar ratio of C-Calkanol/nitrogen oxide of 1-100:1, a molar ratio of nitrogen oxide/oxygen of 4-50:1, to obtain waste liquid containing C-Calkyl nitrite; wherein the nitrogen oxide is NO, or a mixed gas containing NO and one or more selected from NOand NO.

    Abstract translation: 要解决的问题:提供一种新方法,用于生产具有优势的C 1 选择性C 1 -C 4 亚硝酸烷基酯。

    解决方案:用于生产C 1 -C 4 亚硝酸烷基酯的方法包括以下步骤:将树脂催化剂层和 /或多孔填料层进入反应器; 通过树脂催化剂层和/或多孔填料层作为原料通过氮氧化物,氧气和C 1 -C 4 以逆流,并联电流或交叉电流方式; 在反应温度0〜150℃,反应压力-0.09〜1.5MPa,摩尔比C 1 -C 4 链烷醇/氮氧化物为1-100:1,氮氧化物/氧气的摩尔比为4-50:1,得到含有C 1 -C 4 亚硝酸烷基酯; 其中氮氧化物为NO,或含有NO的混合气体和选自N 3 和NO < SB POS =“POST”> 2 。 版权所有(C)2012,JPO&INPIT

    Method for producing nitrous acid ester, and method for producing dialkyl oxalate and dialkyl carbonate
    78.
    发明授权
    Method for producing nitrous acid ester, and method for producing dialkyl oxalate and dialkyl carbonate 有权
    制备亚硝酸酯的方法,以及制备草酸二烷基酯和碳酸二烷基酯的方法

    公开(公告)号:US09499473B2

    公开(公告)日:2016-11-22

    申请号:US14389583

    申请日:2013-02-27

    Abstract: A method for producing nitrous acid ester in which nitric oxide, oxygen, and an alcohol are reacted, thereby generating nitrous acid ester includes a step of generating nitrous acid ester by supplying a bottom liquid from a bottom part of the reaction column, and nitric oxide and/or carbon monoxide, a step of supplying nitrous acid ester to the reaction column; a step of supplying a reaction liquid containing water, nitric acid, and the alcohol to a nitric acid condensing column from the reactor; and a step of separating a low-boiling point component by distillation from the reaction liquid under control of a concentration of the alcohol in a condensed liquid being generated at a bottom part of the nitric acid condensing column to be less than 4.0% by weight so as to introduce the condensed liquid into the reactor from the nitric acid condensing column.

    Abstract translation: 一氧化氮,氧和醇反应生成亚硝酸酯的方法,从而产生亚硝酸酯包括通过从反应塔的底部供应底部液体和一氧化氮产生亚硝酸酯的步骤 和/或一氧化碳,向反应塔供应亚硝酸酯的步骤; 将含有水,硝酸和醇的反应液体从反应器供给到硝酸冷凝塔的步骤; 在硝酸浓缩塔的底部产生的冷凝液中,醇的浓度控制下,通过蒸馏将反应液中的低沸点成分分离成低于4.0重量%的步骤,从而 将浓缩的液体从硝酸冷凝塔引入反应器。

    Process for producing Cl-C4 alkyl nitrite
    80.
    发明授权
    Process for producing Cl-C4 alkyl nitrite 有权
    制备C1-C4烷基亚硝酸盐的方法

    公开(公告)号:US08722918B2

    公开(公告)日:2014-05-13

    申请号:US13088253

    申请日:2011-04-15

    CPC classification number: C07C201/04 C07C203/00

    Abstract: The present invention relates to a process for producing C1-C4 alkyl nitrite, comprising loading a resin catalyst layer and/or a porous filler layer into a reactor, passing nitrogen oxide, oxygen and C1-C4 alkanol as raw materials through the resin catalyst layer and/or porous filler layer in a counter current, parallel current or cross current manner, reacting under the conditions including a reaction temperature of from 0 to 150° C., a reaction pressure of from −0.09 to 1.5 MPa, a molar ratio of C1-C4 alkanol/nitrogen oxide of 1-100:1, a molar ratio of nitrogen oxide/oxygen of 4-50:1, to obtain an effluent containing C1-C4 alkyl nitrite, wherein said nitrogen oxide is NO, or a mixed gas containing NO and one or more selected from N2O3 and NO2.

    Abstract translation: 本发明涉及一种生产C1-C4烷基亚硝酸盐的方法,包括将树脂催化剂层和/或多孔填料层装入反应器中,使氮氧化物,氧和C1-C4链烷醇作为原料通过树脂催化剂层 和/或多孔填料层,以相对电流,并联电流或交叉电流方式,在0〜150℃的反应温度,-0.09〜1.5MPa的反应压力,-0.09〜1.5MPa的反应压力, C1-C4链烷醇/氮氧化物为1-100:1,氮氧化物/氧摩尔比为4-50:1,得到含有C 1 -C 4烷基亚硝酸盐的流出物,其中所述氮氧化物为NO,或混合 含有NO和选自N 2 O 3和NO 2中的一种或多种的气体。

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