PROCESS FOR PREPARING 4-NITRO-OXY-METHYL-BENZOIC ACID
    41.
    发明公开
    PROCESS FOR PREPARING 4-NITRO-OXY-METHYL-BENZOIC ACID 审中-公开
    操作法,4-硝基OXY甲基苯甲酸的制备

    公开(公告)号:EP2501671A1

    公开(公告)日:2012-09-26

    申请号:EP10778650.1

    申请日:2010-11-15

    CPC classification number: C07C51/347 C07C201/02 C07C203/04

    Abstract: This invention relates to a new process for preparing 4-nitro-oxy-methyl- benzoic acid, comprising the following steps: a) reaction of 4-chloromethyl-benzoic acid with silver nitrate and in the presence of an acid as a catalyst in acetonitrile at reflux temperature, followed by cooling and adding of a polar aprotic solvent; b) separation of the silver salts by filtration, followed by washout with a polar aprotic solvent; c) precipitation of the 4-nitro-oxy-methyl-benzoic acid with water from the filtrate obtained in step b); and d) drying of the 4-nitro-oxy-methyl-benzoic acid.

    Process for the preparation of nitric monoesters of dihydroxyalkyl, dihydroxycycloalkyl and dihydroxy(poly)cycloalkyl compounds
    45.
    发明公开
    Process for the preparation of nitric monoesters of dihydroxyalkyl, dihydroxycycloalkyl and dihydroxy(poly)cycloalkyl compounds 审中-公开
    制备二羟基烷基,二羟基环烷基和二羟基(多)环烷基化合物的硝酸单酯的方法

    公开(公告)号:EP1038862A3

    公开(公告)日:2000-11-15

    申请号:EP00105136.6

    申请日:2000-03-10

    CPC classification number: C07C201/02 C07D493/04 C07C203/04

    Abstract: A process for the preparation of nitric monoesters of dihydroxyalkyl, dihydroxycycloalkyl or dihydroxy(poly)cycloalkyl compounds starting from the respective nitric diesters of dihydroxyalkyl, dihydroxycycloalkyl or dihydroxy(poly)cycloalkyl compounds, which comprises the hydrogenation of the nitric diesters with a platinum (0) catalyst.

    Abstract translation: 一种由二羟基烷基,二羟基环烷基或二羟基(多)环烷基化合物的各自的二硝基二酯制备二羟基烷基,二羟基环烷基或二羟基(多)环烷基化合物的硝酸单酯的方法,该方法包括用铂 )催化剂。

    CONTINUOUS SYNTHESIS OF ISOOCTYL NITRATE IN A FLOW REACTOR
    47.
    发明公开
    CONTINUOUS SYNTHESIS OF ISOOCTYL NITRATE IN A FLOW REACTOR 审中-公开
    合成消泡剂中的KONTINUIERLICHE合成VOC ISOOCTYL-NITRAT

    公开(公告)号:EP3114108A1

    公开(公告)日:2017-01-11

    申请号:EP15710688.1

    申请日:2015-03-05

    CPC classification number: C07C201/02 C07C203/04

    Abstract: A process for synthesizing isooctyl nitrate in a continuous flow reactor comprises flowing a H2SO4-HNO3 mixture within a flow reactor, flowing isooctyl alcohol into said flow reactor so as to mix the isooctyl alcohol with the H2SO4-HNO3 mixture and produce a reaction mixture stream flowing in said reactor, maintaining the reaction mixture stream flowing in said flow reactor at a reaction temperature within in the range −10° to 35° C. inclusive, and wherein the residence time of the reaction mixture stream in the flow reactor is greater than or equal to 5 seconds and less than or equal to 40 seconds, and wherein the H2SO4 of the H2SO4-HNO3 mixture is H2SO4 having a concentration of in the range of 85 to 95% inclusive, more desirably 88 to 92% inclusive, most desirably of 90%.

    Abstract translation: 在连续流动反应器中合成硝酸异辛酯的方法包括使流动反应器内的H 2 SO 4 -HNO 3混合物流动,将异辛醇流入所述流动反应器中,以将异辛醇与H 2 SO 4 -HNO 3混合物混合并产生流动的反应混合物流 在所述反应器中,将反应混合物流保持在​​所述流动反应器中的反应温度在-10℃至35℃的范围内,其中反应混合物流在流动反应器中的停留时间大于或等于 等于5秒且小于或等于40秒,并且其中H 2 SO 4 -HNO 3混合物的H 2 SO 4是浓度在85-95%(含)范围内的H 2 SO 4,更优选为88-92%,最优选为 90%。

    Method for production of cetane-index improvement additive for diesel oil
    50.
    发明公开
    Method for production of cetane-index improvement additive for diesel oil 审中-公开
    一种用于制备添加剂用于提高柴油的十六烷指数过程

    公开(公告)号:EP2050810A3

    公开(公告)日:2011-02-16

    申请号:EP08253369.6

    申请日:2008-10-17

    CPC classification number: C10L10/12 C07C205/50 C10L1/231

    Abstract: A method is presented for production of a cetane-index improvement additive for diesel oil produced from biodiesel from castor bean oil.
    Said method employs nitration at the site of the hydroxyl functionality already forming part of the natural molecular chemical structure of the fatty acid ester generated in the production of biodiesel obtained from castor bean oil.
    The present method is advantageous through having a lower number of processing stages, lower rate of undesired nitration of unsaturations, lower consumption of nitrating mixture, reduction in the level of attachment of NO 2 to the molecules of the additive and consequent reduction in undesirable environmental impacts caused by NO x , and utilising a raw material from a renewable source.
    The present cetane improvement additive may be employed as an additive to diesel oil of mineral origin, biodiesel, or synergetic mixtures thereof in any proportion.

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