VERFAHREN ZUR HERSTELLUNG VON CYCLISCHEN KETONEN

    公开(公告)号:EP2041059A1

    公开(公告)日:2009-04-01

    申请号:EP07765652.8

    申请日:2007-06-27

    Applicant: BASF SE

    Abstract: The invention relates to a method for producing a cyclic ketone that has 7 to 16 C atoms. Said method encompasses at least the following stages: (a) a composition (i) at least containing a cyclic alkene with 7 to 16 C atoms, including at least one C-C double bond, is oxidized by means of dinitrogen monoxide so as to obtain a composition (A); (b) composition (A) is treated with at least one base so as to obtain a composition (B); (c) composition (B) is hydrogenated in the presence of at least one catalyst so as to obtain a composition (C); (d) composition (C) is purified in at least the following steps: (di) composition (C) is thermally treated with at least one acid or at least one catalyst containing at least one transition metal; (dii) composition (C) is further purified by means of a process selected from the group comprising distillation, extraction, and crystallization.

    Abstract translation: 本发明涉及生产具有7至16个C原子的环酮的方法。 所述方法至少包括以下阶段:(a)通过一氧化二氮将至少含有具有7至16个C原子的环烯烃(包括至少一个CC双键)的组合物(i)用一氧化二氮氧化以获得 组成(A); (b)用至少一种碱处理组合物(A)以获得组合物(B); (c)将组合物(B)在至少一种催化剂存在下氢化以获得组合物(C); (d)至少在下列步骤中纯化组合物(C):(di)用至少一种酸或至少一种含至少一种过渡金属的催化剂热处理组合物(C); (dii)组合物(C)通过选自蒸馏,萃取和结晶的方法进一步纯化。

    A PROCESS FOR THE PREPARATION OF PROPYLENE OXIDE

    公开(公告)号:EP3416954A1

    公开(公告)日:2018-12-26

    申请号:EP17705863.3

    申请日:2017-02-16

    Applicant: BASF SE

    Abstract: A continuous process for the preparation of propylene oxide, comprising a start-up stage and normal run stage, wherein the normal run stage comprises (i) continuously providing a liquid feed stream comprising propene, hydrogen peroxide, acetonitrile, a formate salt, water and optionally propane, wherein in the liquid feed stream, the molar amount of the formate salt relative to the molar amount of hydrogen peroxide at a given point of time during the normal run stage is aN(Fo/H2O2); (ii) continuously passing the liquid feed stream provided in (i) into an epoxidation zone comprising a catalyst comprising a titanium zeolite having framework type MWW, and subjecting the liquid feed stream to epoxidation reaction conditions in the epoxidation zone, obtaining a reaction mixture comprising propylene oxide, acetonitrile, water, the formate salt, optionally propene, and optionally propane; (iii) continuously removing an effluent stream from the epoxidation zone, the effluent stream comprising propylene oxide, acetonitrile, water, at least a portion of the formate salt, optionally propene, and optionally propane; wherein the normal run stage is characterized in an average rate of change of aN(Fo/H2O2) of less than 0 h−1.

    VERFAHREN ZUR HERSTELLUNG VON POLYAMINEN
    28.
    发明公开

    公开(公告)号:EP3110872A1

    公开(公告)日:2017-01-04

    申请号:EP14821096.6

    申请日:2014-12-12

    Applicant: BASF SE

    CPC classification number: C08G73/0213 C08G73/0206

    Abstract: The present invention relates to a process for preparing polyamines having a mean molecular weight of ≥203 g/mol, in which the deviation from the mean molecular weight per °C of change in the reaction temperature is

    Abstract translation: 本发明涉及一种制备平均分子量为≥203g/ mol的多胺的方法,其中与平均分子量/℃的反应温度变化的平均分子量的偏差为平均分子量的19% 在基于元素周期表第八至第十一跃迁基团的过渡金属的非均相催化剂的存在下,在二氧化碳在液相中的缩聚,氢气在100-250℃的温度下进行,并且压力在 60至150巴,可通过该方法获得的多胺,以及多胺的用途。

    WATER TREATMENT PROCESS
    29.
    发明公开
    WATER TREATMENT PROCESS 审中-公开
    水处理工艺

    公开(公告)号:EP2534104A1

    公开(公告)日:2012-12-19

    申请号:EP11702463.8

    申请日:2011-02-09

    Applicant: BASF SE

    Abstract: A process and an apparatus for obtaining pure water from seawater, comprising: a) a raw water is provided that comprises at least one non-volatile component (salt), b) the raw water provided is passed as cooling medium into a heat ex-changer, c) additional heat is supplied to the raw water that is heated in the heat exchanger, d) the raw water from step c) is fed to an evaporation zone, e) a carrier gas suitable for water vapour is provided (air), f) the carrier gas is brought into contact with the raw water in counter current flow in the evaporation zone which contains baffles, wherein the carrier gas takes up water vapour from the raw water, g) the raw water that is obtained in step f) that is enriched with the at least one non-volatile component is taken off from the evaporation zone, h) the water vapour- loaded carrier gas from the evaporation zone is fed to the heat exchanger and is cooled in counter current flow to the raw water, wherein the water vapour present in the carrier gas partially condenses out, i) the carrier gas depleted in water vapour is passed out of the heat exchanger, k) the condensed water vapour is taken off from the heat exchanger as pure water, wherein the evaporation zone is operated substantially adiabatically, and wherein the carrier gas is transported by means of natural convection through the evaporation zone and thereafter through the heat exchanger.

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