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    34.
    发明专利
    未知

    公开(公告)号：BRPI0609764A2

    公开(公告)日：2011-10-18

    申请号：BRPI0609764

    申请日：2006-05-11

    Applicant: BASF AG

    Inventor： DIEFENBACHER ARMIN ,  HECHLER CLAUS ,  ADAMI CHRISTOPH ,  DIETERLE MARTIN

    IPC: C07C51/25 ,  C07C253/18

    Abstract: Disclosed is a method for producing at least one final product by partial oxidation and/or ammoxidation of propylene. According to said method, a propane dehydrogenation is used as a propylene source while the propane used therein is obtained by rectifyingly pre-purifying raw propane.

    СПОСОБ ПОЛУЧЕНИЯ АКРОЛЕИНА, ИЛИ АКРИЛОВОЙ КИСЛОТЫ, ИЛИ ИХ СМЕСИ ИЗ ПРОПАНА
    35.
    发明专利
    СПОСОБ ПОЛУЧЕНИЯ АКРОЛЕИНА, ИЛИ АКРИЛОВОЙ КИСЛОТЫ, ИЛИ ИХ СМЕСИ ИЗ ПРОПАНА 未知

    公开(公告)号：RU2391330C2

    公开(公告)日：2010-06-10

    申请号：RU2007103607

    申请日：2005-05-17

    Applicant: BASF AG

    Inventor： MACHHAMMER OTTO ,  SCHINDLER GOTZ-PETER ,  ADAMI CHRISTOPH ,  HECHLER CLAUS ,  DIETERLE MARTIN

    IPC: C07B61/00 ,  C07C45/35 ,  C07C47/22 ,  C07C51/235 ,  C07C51/25 ,  C07C57/05 ,  C07C57/055

    Abstract: Изобретениеотноситсяк усовершенствованномуспособуполученияакролеина, акриловойкислотыилиихсмесиизпропана. ВсоответствиисоспособомА) впервуюреакционнуюзонуА вводятпоменьшеймередвасодержащихпропангазообразныхпитающихпотока, поменьшеймереодинизкоторыхсодержитсвежийпропан, ивведенныйв этуреакционнуюзонупропанподвергаютгетерогеннокатализируемомудегидрированиюсостационарнымслоемкатализатора, получаясодержащуюпропани пропиленгазообразнуюсмесьпродуктовА, В, которуювыводятизреакционнойзоныА, впервойзонеразделенияА выделяютизнеепоменьшеймеречастьсодержащихсяв нейкомпонентов, отличающихсяотпропанаи пропилена, аостающуюсяприэтомгазообразнуюсмесьпродуктовА′, содержащуюпропани пропилен, С) используютвовторойреакционнойзонеВ дляпитанияпоменьшеймереодногореактораокисления, ипропилен, содержащийсяв газообразнойсмесипродуктовА′, поменьшеймерев одномреактореокисленияподвергаютгетерогеннокатализируемомудвухступенчатомугазофазномучастичномуокислениюмолекулярнымкислородомв акриловуюкислотуилисмесьакролеинаи акриловойкислоты, вкачествецелевогопродукта, атакжев содержащуюизбытокмолекулярногокислородагазообразнуюсмесьпродуктовВ, D), которуювыводятизреакционнойзоныВ, вовторойзонеразделенияВ выделяютсодержащийсяв нейцелевойпродуктметодомабсорбцииилифракционирующейконденсации, ипоменьшеймеречастьостающегосяпослеэтогоостаточногогаза, содержащегонепревращенныйпропан, молекулярныйкислород, атакжепринеобходимостинепревращенныйпропилен, рециркулируютв реакци

    36.
    发明专利
    未知

    公开(公告)号：BRPI0607497A2

    公开(公告)日：2010-04-06

    申请号：BRPI0607497

    申请日：2006-03-01

    Applicant: BASF AG

    Inventor： HEILEK JOERG ,  MUELLER-ENGEL KLAUS JOACHIM ,  ADAMI CHRISTOPH ,  DIETERLE MARTIN

    IPC: C07C51/573 ,  C07C57/04

    Abstract: The invention relates to a method for separating methacrolein from acrylic acid as the main constituent and from a liquid phase P containing methacrolein as a minor constituent, in addition to a target product. According to said method, the separation takes place by crystallisation, whereby the acrylic acid is concentrated in the formed crystallisate and the methacrolein is concentrated in the remaining mother liquor.

    Method for the production of acrolein, acrylic acid, or a mixture thereof from propane
    37.
    发明专利
    Method for the production of acrolein, acrylic acid, or a mixture thereof from propane 未知

    公开(公告)号：ZA200700833B

    公开(公告)日：2008-10-29

    申请号：ZA200700833

    申请日：2007-01-30

    Applicant: BASF AG

    Inventor： MACHHAMMER OTTO ,  SCHINDLER GOTZ-PETER ,  ADAMI CHRISTOPH ,  HECHLER CLAUS ,  DIETERLE MARTIN

    IPC: C07C20090101 ,  C07C45/35 ,  C07C51/25

    Abstract: A process for preparing acrolein or acrylic acid or a mixture thereof from propane, in which the propane is initially dehydrogenated under heterogeneous catalysis to give propene, secondary components are removed and the remaining gas mixture, comprising propane and propene, is subjected to the heterogeneously catalyzed partial oxidation to acrolein or acrylic acid or a mixture thereof as the target product, target product is removed from the product gas mixture and the remaining residual gas, comprising excess oxygen and unconverted propane, is recycled into the propane dehydrogenation in such a way that the other propane fed to the dehydrogenation is at least partly converted under dehydrogenating conditions at the recycle point.

    Preparing dehydrogenated hydrocarbon comprises providing a gaseous reaction mixture stream containing hydrocarbon at an increased temperature through a catalyst bed system, and supplying a volume flow of e.g. molecular oxygen
    38.
    发明专利
    Preparing dehydrogenated hydrocarbon comprises providing a gaseous reaction mixture stream containing hydrocarbon at an increased temperature through a catalyst bed system, and supplying a volume flow of e.g. molecular oxygen 未知

    公开(公告)号：DE102006035718A1

    公开(公告)日：2008-01-31

    申请号：DE102006035718

    申请日：2006-07-28

    Applicant: BASF AG

    Inventor： DIETERLE MARTIN ,  KLANNER CATHARINA ,  SCHINDLER GOETZ-PETER ,  MUELLER-ENGEL KLAUS JOACHIM ,  SCHEIDEL JENS ,  ADAMI CHRISTOPH

    IPC: C07C5/333 ,  C07C11/00 ,  C07C11/02 ,  C07C57/05 ,  C07C57/07 ,  C07C67/08 ,  C07C69/54 ,  C08F20/10

    Abstract: Preparation of dehydrogenated hydrocarbon, comprises providing a gaseous reaction mixture stream containing the hydrocarbon at an increased temperature through a catalyst bed system present in a reaction zone; and optionally supplying a volume flow of molecular oxygen, molecular hydrogen, water vapor and/or another inert gas that act as auxiliary gases for the dehydrogenation reaction, to the gaseous reaction mixture stream between its entry at the start of the catalyst bed system and its exit from the end of the catalyst bed system. Procedure for the long-term operation of a continuously-operated and heterogeneously-catalyzed partial dehydrogenation process of a hydrocarbon to be dehydrogenated to form a dehydrogenated hydrocarbon, comprises providing a gaseous reaction mixture stream containing the hydrocarbon in an initial molar volume (KW), at an increased temperature through a catalyst bed system, which is present in a reaction zone (RZ) and consist of many catalyst bed sections that are arranged serially along the flow direction of the gaseous reaction mixture stream, and as a whole consists a molar volume (M) of a dehydrogenation catalyst; where: at the time of operation t is t 0, the passage of the gaseous reaction mixture stream through first, second and last third portion of (M) along the flow direction output, proportions of A, B and C mol.% of (KW) of the hydrocarbon to be dehydrogenated are respectively converted to form dehydrogenated hydrocarbon, under the condition that A is greater than B and B is greater than C and during the passage of the gaseous reaction mixture stream through the catalyst bed system, a total (G) i.e. A+B+C mol.% of (KW) of the hydrocarbon to be dehydrogenated that is contained in this reaction mixture stream is dehydrogenated to form dehydrogenated hydrocarbon, and optionally supplying a volume flow of molecular oxygen, molecular hydrogen, water vapor and/or another inert gas that act as auxiliary gases for the dehydrogenation reaction, to the gaseous reaction mixture stream between its entry at the start of the catalyst bed system and its exit from the end of the catalyst bed system, where deactivation of the catalyst bed system that advances with increasing operating time within an operation time interval of greater than t 0 and less than t r is counteracted by varying the temperature profile of the gaseous reaction mixture stream within the catalyst bed system and/or the volume flow of the optionally supplied auxiliary gases for the dehydrogenation reaction, where t r is the operating time point at which the dehydrogenation is interrupted and the catalyst bed system is at first recovered after the operating time point of t 0, thus the variation is carried out in such a manner that with increasing operating time point, the proportion A decreases, the proportion B undergoes a maximum and the proportion C increases.

    Method for the production of at least one partial propylene oxidation and/or ammoxidation product
    40.
    发明专利
    Method for the production of at least one partial propylene oxidation and/or ammoxidation product 未知

    公开(公告)号：ZA200503358B

    公开(公告)日：2006-07-26

    申请号：ZA200503358

    申请日：2005-04-26

    Applicant: BASF AG

    Inventor： ADAMI CHRISTOPH ,  HECHLER CLAUS ,  SCHINDLER GOETZ-PETER ,  PETZOLDT JOCHEN ,  MACHHAMMER OTTO ,  MUELLER-ENGEL KLAUS J ,  MARTAN HANS

    IPC: C07C20060101 ,  C07C7/05 ,  C07C47/22 ,  C07C57/04 ,  C07C253/18 ,  C07C255/08 ,  C07D20060101 ,  C07D301/08 ,  C07D303/04

    Abstract: Preparation of at least one partial oxidation and/or ammoxidation product of propylene involves subjecting crude propylene (prepared by dehydrogenation or oxydehydrogenation in the presence and/or absence of oxygen) in the presence of unconverted propane as a constituent of a gas mixture 2 which comprises a total 4C-hydrocarbon content of at most 3 vol.%, to a heterogeneously catalyzed gas phase partial oxidation and/or ammoxidation. Preparation of at least one partial oxidation and/or ammoxidation product of propylene involves: (a) subjecting crude propane in the presence of and/or absence of oxygen to a homogeneously and/or a heterogeneously catalyzed dehydrogenation and/or oxydehydrogenation to obtain a propane- and propylene-containing gas mixture 1; (b) optionally removing and/or converting to other compounds a portion of the constituents other than propane and propylene contained in the gas mixture 1 to obtain a gas mixture 1' comprising propane and propylene and also compounds other than oxygen, propane and propylene; and (c) subjecting gas mixture 1 and/or gas mixture 1' as a constituent of a gas mixture 2 to a heterogeneously catalyzed gas phase partial oxidation and/or partial gas phase ammoxidation of propylene contained in gas mixture 1 and/or 1'. The total content of 4C-hydrocarbons of gas mixture 2 is at most 3 vol.%.

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