Production method of alkyl nitrite
    61.
    发明专利

    公开(公告)号:JP2003529576A

    公开(公告)日:2003-10-07

    申请号:JP2001572449

    申请日:2001-04-03

    CPC classification number: C07C201/04 C07C203/00

    Abstract: The invention concerns a method for preparing alkyl nitrites of formula (I) R ONO (I) ONO wherein R represents a C1-C20, advantageously C2-C10 linear or branched alkyl group. The invention is characterised in that it consists in gradually and continuously adding in an aqueous medium, an alcohol of formula (II) R OH, R being as defined above, a nitrite of formula (III) M NO2, wherein M represents a metal cation, and a strong acid, so as to form continuously said alkyl nitrite, and in continuously drawing off said alkyl nitrite thus formed from the reaction medium.

    Process for Producing Cl-C4 Alkyl Nitrite
    66.
    发明申请
    Process for Producing Cl-C4 Alkyl Nitrite 有权
    生产Cl-C4烷基亚硝酸盐的方法

    公开(公告)号:US20110257425A1

    公开(公告)日:2011-10-20

    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。

    Method for producing C.sub.1 to C.sub.5 alkyl nitrides
    68.
    发明授权
    Method for producing C.sub.1 to C.sub.5 alkyl nitrides 失效
    制备C1至C5烷基氮化物的方法

    公开(公告)号:US4980496A

    公开(公告)日:1990-12-25

    申请号:US446028

    申请日:1989-12-05

    Inventor: Olan S. Fruchey

    CPC classification number: C07C201/04

    Abstract: The invention provides a process for the production of C.sub.1 to C.sub.5 alkyl nitrite by forming an aqueous solution of C.sub.1 to C.sub.5 alkyl alcohol an alkali metal nitrite; cooling it; then slowly adding a hydrohalic acid solution while it is stirring; the reaction temperature is maintained in the range of from about -10.degree. C. to about 10.degree. C. until the reaction is substantially complete; and the two formed phases are separated in a separatory funnel.

    Abstract translation: 本发明提供一种通过形成C1-C5烷基醇水溶液和碱金属亚硝酸盐来生产C1至C5烷基亚硝酸盐的方法; 冷却 然后在搅拌下缓慢加入氢卤酸溶液; 反应温度保持在约-10℃至约10℃的范围内,直至反应基本完成; 并且两个形成的相在分液漏斗中分离。

    Process and reaction vessel for production of alkyl nitrite
    69.
    发明授权
    Process and reaction vessel for production of alkyl nitrite 失效
    用于生产亚硝酸烷基酯的方法和反应容器

    公开(公告)号:US4908466A

    公开(公告)日:1990-03-13

    申请号:US102367

    申请日:1987-09-29

    Inventor: James R. Nelson

    CPC classification number: B01D3/009 C07C201/04 Y02P20/127

    Abstract: A process and reaction vessel for producing alkyl nitrite is disclosed the process comprising (a) contacting nitric oxide, lower alcohol and oxygen in a reaction zone such that alkyl nitrite is formed, said reaction zone comprising a reactor section and a rectification section, (b) supplying a liquid scrubbing agent to an upper portion of the rectification section, (c) withdrawing a gaseous alkyl nitrite product stream from the upper portion of the rectification section, and (d) withdrawing a liquid stream from a lower portion of the reactor section. The reactor section provides intimate vapor-liquid contact sufficient to enhance the conversion of nitric oxide to alkyl nitrite and the rectification section provides sufficient vapor residence time to enhance conversion of oxygen, as well as sufficient rectification capabilities to reduce the amounts of water and nitric acid in the gaseous alkyl nitrite product stream.

    Process for preparing nitric acid esters of 1,1,2,2-tetrahydro-perfluoro-alkanols
    70.
    发明授权
    Process for preparing nitric acid esters of 1,1,2,2-tetrahydro-perfluoro-alkanols 失效
    制备1,1,2,2-四氢 - 全氟 - 链烷醇的硝酸酯的方法

    公开(公告)号:US3875206A

    公开(公告)日:1975-04-01

    申请号:US44798474

    申请日:1974-03-04

    Applicant: HOECHST AG

    Abstract: 2-Perfluoroalkyl ethanols are obtained by reacting 2-perfluoroalkyl ethyliodides with at least the two-fold molar amount of nitric acid of about 70 to 98 percent strength and hydrogenating the intermediates, which are the nitrates of the desired ethanols. The products are useful as starting materials for the production of hydrophobic and oleophobic textile finishing agents, e.g. the polymer acrylates and methacrylates of said 2perfluoroalkyl-ethanols.

    Abstract translation: 2-全氟烷基乙醇通过使2-全氟烷基乙基碘化物与至少两倍摩尔量的硝酸浓度为约70-98%的强度反应并氢化作为所需乙醇的硝酸盐的中间体来获得。 该产品可用作生产疏水和疏油纺织整理剂的起始材料,例如, 所述2-全氟烷基 - 乙醇的聚合物丙烯酸酯和甲基丙烯酸酯。

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