-
公开(公告)号：ZA200708513B
公开(公告)日：2011-10-26
申请号：ZA200708513
申请日：2007-10-05
Applicant: BASF AG
Inventor： PETZOLDT JOCHEN , CREMER ULRICH , DIETERLE MARTIN
IPC: B01J20060101
Abstract: The invention relates to a method for filling a reactor with a catalyst, to the thus obtained reactors filled with said catalyst, and to the use thereof for carrying out catalytic gas phase reactions.
-
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.
-
公开(公告)号：RU2415126C2
公开(公告)日：2011-03-27
申请号：RU2007103614
申请日：2005-04-21
Applicant: BASF AG
Inventor： DIETERLE MARTIN , MUELLER-ENGEL KLAUS , HECHLER CLAUS , HAMMON ULRICH , DIEFENBACHER ARMIN
IPC: C07C45/53 , C07C47/22 , C07C51/16 , C07C51/235 , C07C51/25 , C07C57/05 , C07C57/055
Abstract: Настоящееизобретениеотноситсяк способуснижениятемпературыгорячейточкинеподвижногослоякатализаторав процессеполученияакриловойкислотыпутемгетерогеннокатализируемогочастичногоокисленияв газовойфазепропилена, прикоторома. напервойреакционнойстадиипропанподвергаютгетерогеннокатализируемомудегидрированию, причемполучаютпродуктовуюгазовуюсмесь 1, b. изобразованнойпродуктовойгазовойсмеси 1, принеобходимости, превращаютчастичноеколичествосодержащихсяв нейотличныхотпропанаи пропиленакомпонентовв другиесоединенияи отобразованнойнапервойреакционнойстадиипродуктовойгазовойсмеси 1, принеобходимости, отделяютчастичноеколичествосодержащихсяв нейотличныхотпропанаи пропиленакомпонентов, причемизпродуктовойгазовойсмеси 1 получаютпродуктовуюгазовуюсмесь 1', содержащуюпропани пропилен, атакжеотличныеоткислорода, пропанаи пропиленасоединения, с. продуктовуюгазовуюсмесь 1 или 1' вкачествекомпонентаисходнойреакционнойгазовойсмеси 2, навторойреакционнойстадииподвергаютгетерогеннокатализируемомучастичномуокислениюв газовойфазесодержащегосяв продуктовойгазовойсмеси 1 или 1' пропиленав акролеин, причемполучаютпродуктовуюгазовуюсмесь 2, d. температурупокидающейвторуюреакционнуюстадиюпродуктовойгазовойсмеси 2, вслучаенеобходимости, снижаютпрямыми/иликосвеннымохлаждениеми кэтойсмеси 2, вслучаенеобходимости, добавляютмолекулярныйкислороди/илиинертныйгаз, е. послеэтогов качествеисходнойреакционнойгазовойсмеси 3, натретьейреакционнойстадии, подвергаютгетерогеннокатализируемомучастичномуок
-
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
-
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.
-
Patent Agency Ranking
公开(公告)号：ZA200700832B
公开(公告)日：2008-11-26
申请号：ZA200700832
申请日：2007-01-30
Applicant: BASF AG
Inventor： DIETERLE MARTIN , MUELLER-ENGEL KLAUS , HECHLER CLAUS , HAMMON ULRICH , DIEFENBACHER ARMIN
IPC: C07C20090101 , C07C51/25
Abstract: The invention relates to a method for producing acrylic acid by means of two-stage heterogeneously catalyzed partial gas phase oxidation of propylene. According to said method, previously dehydrogenated propane is used as a propylene source while the first partial oxidation stage is operated so as to limit propylene reaction. Furthermore, unreacted propane and propylene contained in the product gas mixture of the second partial oxidation stage are largely redirected into the propane dehydrogenation process taking place upstream.
-
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.
-
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
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.
-
公开(公告)号：DE502004003884D1
公开(公告)日：2007-07-05
申请号：DE502004003884
申请日：2004-03-20
Applicant: BASF AG
Inventor： DIETERLE MARTIN , PETZOLDT JOCHEN , ARNOLD HEIKO , RUPPEL WILHELM , MUELLER-ENGEL KLAUS JOACHIM
IPC: C07C57/055 , C07C51/25
Abstract: The invention relates to a method for the heterogeneously catalysed partial gas phase oxidation of acrolein to form acrylic acid, whereby the initial mixture of reaction gas is oxidised on a fixed-bed catalyst bed which consists of at least two fixed-bed catalyst bed zones and is arranged in two successive temperature zones A and B. The transition from temperature zone A to temperature zone B does not coincide with a transition from a fixed-bed catalyst bed zone to another fixed-bed catalyst bed zone.
-
公开(公告)号：DE102005062010A1
公开(公告)日：2007-06-28
申请号：DE102005062010
申请日：2005-12-22
Applicant: BASF AG
Inventor： DIETERLE MARTIN , HEILEK JOERG , MUELLER-ENGEL KLAUS JOACHIM
Abstract: Heterogeneously catalyzed partial gas phase oxidation of propylene to acrylic acid comprises introducing a reaction gas initial mixture (1) into a first reaction zone; reducing the temperature of the product gas mixture (1) by direct and/or indirect cooling, and adding a secondary gas to the product gas mixture (1); and subsequently introducing the product gas mixture (1), into a second reaction stage; and subsequently transferring the product gas mixture (2) containing acrylic acid in a first separation zone into the condensed phase and subsequently in a second separation zone. Heterogeneously catalyzed partial gas phase oxidation of propylene to acrylic acid comprises introducing a reaction gas initial mixture (1) containing propylene and molecular oxygen in a molar ratio of >=, 1 and at least an inert dilution gas in a first reaction stage, into a first reaction zone through at least a first catalyst bed at increased temperature, where the catalyst exhibit at least a multi-metal oxide (A) containing molybdenum, iron and bismuth as active mass, such that the propylene conversion during a single passage through the catalyst bed is >= 90 mol.% and the resulting selectivity of the acrolein- and acrylic acid by-product- formation is >= 80 mol.%; reducing the temperature of the product gas mixture (1) from the first reaction stage by direct and/or indirect cooling, and adding a secondary gas in the form of molecular oxygen and/or inert gas to the product gas mixture (1); and subsequently introducing the product gas mixture (1) as a reaction gas initial mixture (2) containing molecular oxygen and acrolein in a molar ratio of >= 0.5 and at least an inert dilution gas, in a second reaction stage at increased temperature by at least a second catalyst bed, whose catalysts exhibits multi-metal oxide (A1) containing at least an molybdenum and vanadium as active mass in such a way that the acrolein conversion during a single passage through the catalyst bed is >= 90 mol % and the selectivity of the acrylic acid formation over both the reaction stages is >= 70 mol %, with respect to converted propylene; subsequently transferring the product gas mixture (2) containing acrylic acid in a first separation zone into the condensed phase and subsequently in a second separation zone, where: the acrylic acid is separated from the condensed phase by application of at least a thermal separation process comprising at least a crystallization separation of the acrylic acid, and the reaction gas initial mixture (1) contains cyclopropane (up to 3 mol.%), with respect to the propylene.
-
-
-
-
-
-
-
-
-
Search Results
108
records
(took 0.025 seconds)
