СПОСОБ ЭПОКСИДИРОВАНИЯ ПРОПЕНА

    公开(公告)号:RU2388755C2

    公开(公告)日:2010-05-10

    申请号:RU2008130728

    申请日:2006-12-18

    Abstract: Настоящееизобретениеотноситсяк способуэпоксидированияпропена, которыйвключаетреакциюпропенас пероксидомводородав присутствииметанолав качестверастворителяи титановогоцеолитногокатализатора. Предложенныйспособвключаетотделениепропиленоксидаотреакционнойсмесис получениемсмеси (Ма), включающейметанол, воду, покрайнеймере, однукарбоновуюкислотуи, покрайнеймере, однокарбонильноесоединение. Покрайнеймере, однукарбоновуюкислоту, содержащуюсяв Ма, покрайнеймере, частичнонейтрализуютдобавлениемоснованияк смесиМас образованиемсмеси Mb иметанолотделяютдистилляциейотсмеси Mb иповторночастичноиспользуютнастадииреакциипропенас пероксидомводорода. Указанныйспособнеобязательновключаетстадиюгидрированияпередстадиейнейтрализации. Техническийрезультат - разработкаспособаэпоксидированияпропена, позволяющегоперерабатыватьреакционнуюсмесьэпоксидированияс выделениемрециркулируемогометанола, которыйимеетпониженноесодержаниекарбонильныхсоединений. 17 з.п. ф-лы.

    14.
    发明专利
    未知

    公开(公告)号:AT448871T

    公开(公告)日:2009-12-15

    申请号:AT05701075

    申请日:2005-01-20

    Applicant: BASF SE

    Abstract: Process and apparatus for the continuous preparation of a chemical compound in at least one reactor, where at least one of the reactors is a shell-and-tube reactor which has a shell and at least one internal tube located within the shell, wherein at least one of the internal tubes has, at least in part, a noncircular cross section and a helical configuration in the region in which it is surrounded by the shell.

    15.
    发明专利
    未知

    公开(公告)号:DE50114970D1

    公开(公告)日:2009-08-20

    申请号:DE50114970

    申请日:2001-04-30

    Applicant: BASF SE

    Abstract: The invention relates to a method for producing cyclic lactams of the formula (II), wherein n and m may each represent 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9 and the sum of n + m is at least 3, preferably at least 4, R and R represent C1-C6 alkyl, C5-C7 cycloalkyl or C6-C12 aryl groups, by reacting a compound of the formula (I), wherein R , R , m and n have the meaning indicated above, and R represents nitrile groups, carboxylic acid amide groups and carboxylic acid groups, with water vapor in the gaseous phase. The inventive method is further characterized in that a) the compound (I) is reacted with water vapor in the gaseous phase, adding an organic diluent (III) before or after the reaction, which diluent has a miscibility gap under certain quantitative, pressure and temperature conditions, said reaction resulting in a mixture (IV) that contains a lactam (II), b) adjusting the mixture (IV) before or after the removal of ammonia to quantitative, pressure and temperature conditions under which the diluent (III) and water are present in a liquid form and have a miscibility gap, and obtaining a two-phase system consisting of a phase (V) that has a higher proportion of diluent (III) than water, and a phase (VI) that has a higher proportion of water than diluent (III), c) separating phase (V) from phase (VI) and, d) removing from phase (V) the diluent (III) and optionally by-products selected from the group of the low-boilers, high-boilers and unreacted compound (I), and obtaining a lactam (II).

    EXTRACCION DE COMPLEJOS DE NIQUEL (0) A PARTIR DE MEZCLAS DE NITRILOS CON BAJA FORMACION DE MULM.

    公开(公告)号:ES2306233T3

    公开(公告)日:2008-11-01

    申请号:ES05798767

    申请日:2005-10-12

    Applicant: BASF SE

    Abstract: Procedimiento para la separación por extracción de catalizadores disueltos, homogéneos, a partir de una descarga de la reacción de una hidrocianuración de mononitrilos insaturados para dar dinitrilos, mediante extracción con ayuda de un hidrocarburo K, caracterizado porque a) se concentra por evaporación la descarga de la reacción como paso previo a la etapa b) mediante destilación a presiones comprendidas entre 0,1 y 5.000 mbares y a temperaturas comprendidas entre 10 y 150ºC, b) se aporta un hidrocarburo K a la descarga de la reacción, concentrada por evaporación, con lo que se obtiene una corriente I, y c) se alimenta la corriente I, sin separación previa de las fases líquidas, en un dispositivo de extracción y se extrae a una temperatura T con el hidrocarburo K, obteniéndose una corriente II que contiene el hidrocarburo K enriquecido con el catalizador, y una corriente III pobre en catalizador.

    19.
    发明专利
    未知

    公开(公告)号:DE50310044D1

    公开(公告)日:2008-08-07

    申请号:DE50310044

    申请日:2003-10-23

    Applicant: BASF SE

    Abstract: Process for the continuous recirculation of the olefin which has not been reacted in the epoxidation of olefins by means of hydroperoxide to give oxiranes and is present in the offgas stream formed during the epoxidation, which comprises the steps (i) to (iii) (i) compressing and cooling the offgas stream, (ii) seperating the olefin from the offgas stream obtain in step (i) by distillation, (iii) epoxidizing the olefin seperating off in step (ii) by means of hydroperoxide.

    20.
    发明专利
    未知

    公开(公告)号:AT397489T

    公开(公告)日:2008-06-15

    申请号:AT05798767

    申请日:2005-10-12

    Applicant: BASF SE

    Abstract: A process for extractively removing homogeneously dissolved catalysts from a reaction effluent of a hydrocyanation of unsaturated mononitriles to dinitriles with a hydrocarbon H, including performing the steps of a) concentrating the reaction effluent before step b) by distillation at pressures of from 0.1 to 5000 mbar and temperatures of from 10 to 150° C., b) adding a hydrocarbon H to the concentrated reaction effluent to obtain a stream I, and c) feeding stream I, without prior separation of the liquid phases, into an extraction apparatus and extracting it at a temperature T with the hydrocarbon H to obtain a stream II comprising the hydrocarbon H enriched with the catalyst and a stream III having a low catalyst content.

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