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    PROCESS FOR CONTINUOUSLY PREPARING N-BUTYL ACRYLATE OR ISOBUTYL ACRYLATE
    2.
    发明申请
    PROCESS FOR CONTINUOUSLY PREPARING N-BUTYL ACRYLATE OR ISOBUTYL ACRYLATE 审中-公开

    公开(公告)号：US20200239400A1

    公开(公告)日：2020-07-30

    申请号：US16636703

    申请日：2018-08-13

    Applicant: BASF SE

    Inventor： Ortmund LANG ,  Tim BLASCHKE ,  Christian RAITH ,  Michael SCHAFRANKA ,  Claus HECHLER

    IPC: C07C67/08 ,  C07C67/54

    Abstract: A process for continuously preparing a butyl acrylate H2C═CH—C(═O)OR, with R=n-butyl or isobutyl, wherein aqueous 3-hydroxypropionic acid is converted under dehydrating and esterifying conditions in the presence of the corresponding butanol R—OH in a reactor with a rectification column and butyl acrylate formed, unconverted butanol and water used and formed are distilled off overhead as a ternary azeotrope, after separation into a liquid aqueous phase and liquid organic phase each of the aqueous and organic phases is at least partly discharged, and the organic phase comprising the butyl acrylate and the butanol is subjected to distillative separation.

    PROCESS AND PLANT FOR TREATMENT OF SECONDARY COMPONENTS OBTAINED IN ACROLEIN AND/OR (METH)ACRYLIC ACID PRODUCTION
    4.
    发明申请
    PROCESS AND PLANT FOR TREATMENT OF SECONDARY COMPONENTS OBTAINED IN ACROLEIN AND/OR (METH)ACRYLIC ACID PRODUCTION 审中-公开
    用于处理在ACROLEIN和/或（METH）丙烯酸生产中获得的次要组分的方法和设备

    公开(公告)号：US20160083267A1

    公开(公告)日：2016-03-24

    申请号：US14857998

    申请日：2015-09-18

    Applicant: BASF SE

    Inventor： Ulrich HAMMON ,  Thomas WALTER ,  Christian RAITH

    IPC: C02F1/04 ,  B01D3/26 ,  B01D1/00 ,  C02F1/16

    CPC classification number: C02F1/048 ,  B01D1/0058 ,  B01D3/26 ,  B01D3/346 ,  C02F1/16 ,  C02F2103/36 ,  C02F2303/10 ,  C07C51/44 ,  C07C57/04 ,  Y02W10/30

    Abstract: The present invention relates to a process for treating secondary components obtained in acrolein and/or (meth)acrylic acid production, comprising the steps of: a) contacting at least one wastewater stream (201) comprising at least a portion of the water of reaction removed in a first stage of a saturation column (101) with at least one process offgas stream (203), b) introducing energy by means of a first heat transferer (103) provided in a first saturation circuit (301) into the first stage of the saturation column (101), c) partly vaporizing the wastewater stream (201) into the process offgas stream (203) and passing the combined gas stream (205) into a second stage of the saturation column (101), d) drawing off a concentrated wastewater stream (207) from the bottom (1011) of the first stage of the saturation column (101) and feeding it to the top (1023) of the second stage of the saturation column (101), e) introducing energy by means of a second heat transferer (105) provided in a second circuit (303) into the second stage of the saturation column (101), f) partly vaporizing the concentrated wastewater stream (207) into the combined gas stream (205) to obtain an offgas stream (209), g) superheating the offgas stream (209), after it has been saturated, in a third heat transferer (113) to obtain a superheated offgas stream (211) and h) transferring the offgas stream (209) or the superheated offgas stream (211) from the saturation column (101) to a thermal aftertreatment. The present invention further relates to a plant (1) for treating the secondary components obtained in acrolein and/or (meth)acrylic acid production.

    Abstract translation: 本发明涉及一种用于处理由丙烯醛和/或（甲基）丙烯酸生产获得的二次成分的方法，包括以下步骤：a）使至少一个包含至少一部分反应水的废水流（201） 在具有至少一个工艺废气流（203）的饱和塔（101）的第一级中去除，b）通过设置在第一饱和电路（301）中的第一热传递器（103）将能量引入第一级 的饱和塔（101），c）将废水流（201）部分蒸发到工艺废气流（203）中，并将组合气流（205）送入饱和塔（101）的第二级，d） 从饱和塔（101）的第一级的底部（1011）离开浓缩废水流（207）并将其供给到饱和塔（101）的第二级的顶部（1023），e）引入能量 通过设置在其中的第二传热器（105） 第二回路（303）进入饱和塔（101）的第二阶段，f）将浓缩废水流（207）部分汽化成合并气流（205）以获得废气流（209），g）使废气过热 （209）或过热废气流（211）从饱和塔（209）中转移出来，在第三热转移器（113）中， （101）进行热后处理。 本发明还涉及用于处理在丙烯醛和/或（甲基）丙烯酸生产中获得的二次成分的设备（1）。

    PROCESS FOR SHUTTING-DOWN AND HEATING UP A TUBULAR REACTOR FOR A CATALYTIC GAS PHASE REACTION
    5.
    发明申请
    PROCESS FOR SHUTTING-DOWN AND HEATING UP A TUBULAR REACTOR FOR A CATALYTIC GAS PHASE REACTION 有权

    公开(公告)号：US20240424466A1

    公开(公告)日：2024-12-26

    申请号：US18570667

    申请日：2022-05-25

    Applicant: BASF SE

    Inventor： Ulrich HAMMON ,  Christian RAITH ,  Hans-Juergen BASSLER

    IPC: B01J19/00 ,  B01J8/06 ,  B01J19/24 ,  C07C51/25

    Abstract: The present invention relates to a process for shutting-down a tubular reactor (1) for a catalytic gas phase reaction from a reaction temperature, wherein the tubular reactor (1) comprises a plurality of vertically arranged reaction tubes (2), an upper tube sheet (5) and a lower tube sheet (6) which each are connected to upper ends and lower ends of the reaction tubes (2) in a gas-tight manner, and a reactor shell (7) which encloses the plurality of reaction tubes (2) forming a liquid-tight heat transfer space (9), wherein, in operation mode, a substantially anhydrous liquefied salt melt (8) is circulated in the heat transfer space (9), characterized in that water (10) is added to the substantially anhydrous liquefied salt melt (8), obtaining a water-salt mixture (11), while cooling the tubular reactor (1) to a temperature below the solidification temperature of the substantially anhydrous liquefied salt melt (8), such that the water-salt mixture (11) is kept in a liquefied state during the whole cooling step of the tubular reactor (1).

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