公开(公告)号：DE10313208A1

公开(公告)日：2004-10-07

申请号：DE10313208

申请日：2003-03-25

Applicant: BASF AG

Inventor： DIETERLE MARTIN ,  PETZOLDT JOCHEN ,  MUELLER-ENGEL KLAUS JOACHIM ,  ARNOLD HEIKO

IPC: B01J23/00 ,  B01J23/887 ,  B01J35/00 ,  B01J37/02 ,  C07C51/25 ,  C07C57/05 ,  B01J23/84 ,  C07C27/14

Abstract: Heterogeneous catalyzed gas phase partial oxidation of propene to acrylic acid comprises processing a reaction mixture using a fixed catalyst bed comprising two separate reaction zones in series, A and B maintained at 290-380[deg]C and where active mass comprises a multimetal oxide of Mo, Fe and Bi followed by a second fixed catalyst bed separated into 2 reaction zones C and D at 230-320[deg]C comprising a multimetal oxide of Mo and V. A process for the heterogeneous catalyzed partial oxidation of propene to acrylic acid in the gas phase comprises processing a reaction mixture comprising propene, molecular oxygen and at least one inert gas having a molar ratio of O 2 to C 3H 6 of at least 1 in a first reaction stage using a fixed catalyst bed. The fixed bed comprises two separate reaction zones in series, A and B maintained at 290-380[deg]C. The catalyst active mass comprises a multimetal oxide of Mo, Fe and Bi such that zone A results in a propene conversion of 40-80 mol.% and a single pass through the total catalyst bed results in a greater than 90 mol.% propene conversion with a selectivity to acrolein of greater than 90 mol.%. The process features optional cooling of the mixture leaving the first reaction stage and optional addition of molecular oxygen and/or inert gas. The product mixture comprises acrolein, molecular oxygen and at least one inert gas to form a second reaction mixture having a molar ratio of O 2:C 3H 4O of at least 0.5 that is fed to a second fixed catalyst bed. The second fixed catalyst bed is separated into two reaction zones C and D at 230-320[deg]C comprising a multimetal oxide of Mo and V. The conversion of acrolein in zone C is 45-85 mol.% and the acrolein conversion over the second bed is at least 90 mol.% with a selectivity (propene to acrylic acid) of greater than 80 mol.%. The reaction mixture passes through the zones corresponding to their alphabetical order and is characterized by in the first fixed bed: (i) a reaction gas loading of 90-160 Nl propene per liter of fixed catalyst bed per hour; (ii) the volume specific activity of the fixed catalyst bed in the flow direction of the reaction mixture is either constant or increases at least once; and (iii) the difference between the maximum temperatures in zone A and B is at least 0[deg]C The second fixed bed features: a reaction gas feed of 70-145 Nl acrolein per liter of bed per hour; at least one increase in the volume specific activity of the second catalyst bed in the direction of flow; and a difference between the maximum temperature in C and D of at least 0[deg]C.

公开(公告)号：DE10254279A1

公开(公告)日：2004-06-03

申请号：DE10254279

申请日：2002-11-20

Applicant: BASF AG

Inventor： BORGMEIER FRIEDER ,  DIETERLE MARTIN ,  HIBST HARTMUT

IPC: C01G1/02 ,  C01G31/02 ,  C01G39/02

Abstract: A heterogeneously catalyzed gas-phase partial oxidation of acrolein to acrylic acid over a catalytically active multimetal oxide material which contains the elements molybdenum and vanadium, tellurium or antimony, and elements consisting of niobium, tantalum, tungsten or titanium, whose X-ray diffraction pattern has no reflections with the peak position 2 theta = 50 +/- 0.30 but has reflections whose peaks are at specified diffraction angles. Heterogeneously catalyzed gas-phase partial oxidation of acrolein to acrylic acid over a catalytically active multimetal oxide material which contains the elements molybdenum and vanadium, tellurium or antimony, and elements consisting of niobium, tantalum, tungsten or titanium, whose X-ray diffraction pattern has no reflections with the peak position 2 theta = 50 +/- 0.30 but has reflections h, i and k whose peaks are at the diffraction angles (2 theta) 22.2 +/- 0.5 degrees (h), 27.3 +/- 0.50 (i) and 28.2 +/- 0.50 (k). The reflection (h ) is the one with the strongest intensity within the X-ray diffraction pattern and having a full width at half height of not more than 0.50; the intensity (Pi) of the reflection (i) and the intensity (Pk) of the reflection (k) fulfill the relationship that R is 0.65-0.85, where R is the intensity ratio defined by the formula R = Pi/(Pi + Pk); and the full width at half height of the reflection (i) and of the reflection (k) is in each case at most 10. The catalytically active multimetal oxide material is of formula (I). Mo1VaM1bM2cM3dOn (I). M1 = element(s) from the group consisting of Te and Sb; M2 = element(s) from the group consisting of Nb, Ti, W, Ta and Ce; M3 = element(s) consisting of Pb, Ni, Co, Bi, Pd, Ag, Pt, Cu, Au, Ga, Zn, Sn, In, Re, Ir, Sm, Sc, Y, Pr, Nd or Tb; a = 0.01-1; b = 0-1; c = 0-1; d = 0-0.5; n = number that is determined by the valency and frequency of the elements other than oxygen in formula (I).

公开(公告)号：DE10313209A1

公开(公告)日：2004-03-04

申请号：DE10313209

申请日：2003-03-25

Applicant: BASF AG

Inventor： DIETERLE MARTIN ,  PETZOLDT JOCHEN ,  MUELLER-ENGEL KLAUS JOACHIM ,  MARTAN HANS

IPC: C07C51/25 ,  C07C57/05

Abstract: A process for the heterogeneously catalyzed partial gas phase oxidation of propene to acrylic acid by passage of a gas phase mixture comprising 6-15 vol.% propene, 4-20 vol. % water and no greater than 10 vol. % of other components as well as molecular oxygen such that the molar ratio of oxygen to propene is 1.5-2.5 and the residual amount to 100 vol.% comprises molecular nitrogen though a first reaction stage. A process for the heterogeneously catalyzed partial gas phase oxidation of propene to acrylic acid by passage of a gas phase mixture (I) comprising propene, molecular oxygen and at least one inert gas having a molar ratio of oxygen to propene of at least 1. The process involves a first reaction stage at elevated temperature having a fixed catalyst bed of ring shaped catalyst having a multimetal oxide active material of formula (1). The catalyst has a volume specific activity in the flow direction of the mixture (I) which is either constant or at least increases once and the active mass composition does not change over the bed packing such that the conversion of propene is at last 90 mol.% in a single pass with a selectivity to acrolein and acrylic acid of at least 90 mol.% with direct or indirect cooling of the product mixture leaving the first reaction stage. Optional addition of molecular oxygen and/or inert gas and the product mixture comprising acrolein, molecular oxygen and at least one inert gas having a molar ratio of oxygen to acrolein of at least 0.5 is passed through a second reaction stage comprising a second fixed bed catalyst packing comprising ring shaped packing whose active mass comprises a multimetal oxide of formula (2). Multimetal oxide (2) whose volume specific activity in the direction of flow at least increases once and whose composition does not alter over the second reaction stage such that the single-pass conversion of acrolein is at least 90 mol.% and the selectivity of both reaction stages to the formation of acrylic acid (with respect to reacted propene) is at least 80 mol.% is characterized in that the reaction mixture (I) comprises 6-15 vol.% propene, 4-20 vol.% water and no greater than 10 vol. % of other components that are not propene, water, oxygen or nitrogen, as well as molecular oxygen such that the molar ratio of oxygen to propene is 1.5-2.5 and the residual amount to 100 vol.% comprises molecular nitrogen. Mo12X1aX2bX3cX4dX5eOn (1) Mo12VfX6gX7hOm (2) X1 = Bi, Co or Ni; X2 = W or Nb; X3 = Fe or Cr; X4 = K, Cs or Sr; X5 = Si, Al or Zr; X6 = W or Nb; X7 = Sb, Cu, Ni or Fe; a = 5-10; b = 0-4; c = 2-5; d = 0.02-0.15; e = 0.5-4; f = 1-5; g = 1-2; h = 1-4; m, n = number of O atoms dependent upon the valency and number of elements.

公开(公告)号：DE10254278A1

公开(公告)日：2004-02-26

申请号：DE10254278

申请日：2002-11-20

Applicant: BASF AG

Inventor： BORGMEIER FRIEDER ,  MUELLER-ENGEL KLAUS JOACHIM ,  HIBST HARTMUT ,  DIETERLE MARTIN

IPC: C01G33/00 ,  C01G39/00 ,  C01G1/02 ,  C01G31/02 ,  C01G39/02

Abstract: A heterogeneously catalyzed gas-phase partial oxidation of acrolein to acrylic acid over a catalytically active multimetal oxide material which contains the elements molybdenum and vanadium, tellurium or antimony, and elements consisting of niobium, tantalum, tungsten or titanium, whose X-ray diffraction pattern has no reflections with the peak position 2 theta = 50 +/- 0.30 but has reflections whose peaks are at specified diffraction angles. Heterogeneously catalyzed gas-phase partial oxidation of acrolein to acrylic acid over a catalytically active multimetal oxide material which contains the elements molybdenum and vanadium, tellurium or antimony, and elements consisting of niobium, tantalum, tungsten or titanium, whose X-ray diffraction pattern has no reflections with the peak position 2 theta = 50 +/- 0.30 but has reflections h, i and k whose peaks are at the diffraction angles (2 theta) 22.2 +/- 0.5 degrees (h), 27.3 +/- 0.50 (i) and 28.2 +/- 0.50 (k). The reflection (h ) is the one with the strongest intensity within the X-ray diffraction pattern and having a full width at half height of not more than 0.50; the intensity (Pi) of the reflection (i) and the intensity (Pk) of the reflection (k) fulfill the relationship that R is 0.65-0.85, where R is the intensity ratio defined by the formula R = Pi/(Pi + Pk); and the full width at half height of the reflection (i) and of the reflection (k) is in each case at most 10. The catalytically active multimetal oxide material is of formula (I). Mo1VaM1bM2cM3dOn (I). M1 = element(s) from the group consisting of Te and Sb; M2 = element(s) from the group consisting of Nb, Ti, W, Ta and Ce; M3 = element(s) consisting of Pb, Ni, Co, Bi, Pd, Ag, Pt, Cu, Au, Ga, Zn, Sn, In, Re, Ir, Sm, Sc, Y, Pr, Nd or Tb; a = 0.01-1; b = 0-1; c = 0-1; d = 0-0.5; n = number that is determined by the valency and frequency of the elements other than oxygen in formula (I).

公开(公告)号：BRPI1015322A2

公开(公告)日：2016-04-26

申请号：BRPI1015322

申请日：2010-04-22

Applicant: BASF CORP E BASF AG

Inventor： VOSS KENNETH E ,  DIETERLE MARTIN ,  BOORSE R SAMUEL

IPC: B01D53/94 ,  F01N3/022 ,  F01N3/035 ,  F01N3/20

公开(公告)号：BRPI0607566B1

公开(公告)日：2016-03-29

申请号：BRPI0607566

申请日：2006-03-01

Applicant: BASF AG

Inventor： PETZOLDT JOCHEN ,  MÜLLER-ENGEL KLAUS JOACHIM ,  DIETERLE MARTIN ,  HAMMON ULRICH

IPC: C07C57/05

Abstract: processo para a preparação de pelo menos um composto alvo orgânico, e, aparelho. a invenção refere-se a um processo para a produção de um composto alvo orgânico pela realização de uma oxidação parcial em fase gasosa heterogeneamente catalisada em um composto precursor orgânico com oxigénio molecular nos percursos de reator de oxidação que são operados em paralelo, e eliminação do composto alvo da mistura dos fluxos de gás de produto em um percurso de reprocessamento. o catalisador alimentado a um dos percursos de oxidação contém uma quantidade parcial de catalisador na qual a oxidação parcial em fase gasosa heterogeneamente catalisada já tenha sido realizada em mais que as quantidades parcial de catalisador alimentado para o outro percurso de reator de oxidação.

公开(公告)号：BRPI0607497B1

公开(公告)日：2015-12-15

申请号：BRPI0607497

申请日：2006-03-01

Applicant: BASF AG

Inventor： ADAMI CHRISTOPH ,  HEILEK JÖRG ,  MÜLLER-ENGEL KLAUS JOACHIM ,  DIETERLE MARTIN

IPC: C07C51/573 ,  C07C57/04

Abstract: processo para remover metacroleína a partir da fase líquida p que compreende ácido acrílico como um constituinte principal e produto alvo e metacroleína como um componente secundário. a invenção diz respeito a um processo para remover metacroleina do ácido acrílico como o constituinte principal e de uma fase líquida p contendo metacroleina como um constituinte secundário, além de um produto alvo. de acordo com o dito processo, a separação acontece pela cristalização, por meio do qual o ácido acrílico é concentrado nos cristalizados formados e a metacroleina é concentrada no licor mãe remanescente.

公开(公告)号：BRPI0406992B1

公开(公告)日：2015-03-03

申请号：BRPI0406992

申请日：2004-03-20

Applicant: BASF AG

Inventor： DIETERLE MARTIN ,  PETZOLDT JOCHEN ,  MUELLER-ENGEL KLAUS JOACHIM ,  MARTAN HANS

IPC: C07C51/25 ,  C07C57/04

Abstract: A process for the heterogeneously catalyzed partial gas phase oxidation of propene to acrylic acid by passage of a gas phase mixture comprising 6-15 vol.% propene, 4-20 vol. % water and no greater than 10 vol. % of other components as well as molecular oxygen such that the molar ratio of oxygen to propene is 1.5-2.5 and the residual amount to 100 vol.% comprises molecular nitrogen though a first reaction stage. A process for the heterogeneously catalyzed partial gas phase oxidation of propene to acrylic acid by passage of a gas phase mixture (I) comprising propene, molecular oxygen and at least one inert gas having a molar ratio of oxygen to propene of at least 1. The process involves a first reaction stage at elevated temperature having a fixed catalyst bed of ring shaped catalyst having a multimetal oxide active material of formula (1). The catalyst has a volume specific activity in the flow direction of the mixture (I) which is either constant or at least increases once and the active mass composition does not change over the bed packing such that the conversion of propene is at last 90 mol.% in a single pass with a selectivity to acrolein and acrylic acid of at least 90 mol.% with direct or indirect cooling of the product mixture leaving the first reaction stage. Optional addition of molecular oxygen and/or inert gas and the product mixture comprising acrolein, molecular oxygen and at least one inert gas having a molar ratio of oxygen to acrolein of at least 0.5 is passed through a second reaction stage comprising a second fixed bed catalyst packing comprising ring shaped packing whose active mass comprises a multimetal oxide of formula (2). Multimetal oxide (2) whose volume specific activity in the direction of flow at least increases once and whose composition does not alter over the second reaction stage such that the single-pass conversion of acrolein is at least 90 mol.% and the selectivity of both reaction stages to the formation of acrylic acid (with respect to reacted propene) is at least 80 mol.% is characterized in that the reaction mixture (I) comprises 6-15 vol.% propene, 4-20 vol.% water and no greater than 10 vol. % of other components that are not propene, water, oxygen or nitrogen, as well as molecular oxygen such that the molar ratio of oxygen to propene is 1.5-2.5 and the residual amount to 100 vol.% comprises molecular nitrogen. Mo12X1aX2bX3cX4dX5eOn (1) Mo12VfX6gX7hOm (2) X1 = Bi, Co or Ni; X2 = W or Nb; X3 = Fe or Cr; X4 = K, Cs or Sr; X5 = Si, Al or Zr; X6 = W or Nb; X7 = Sb, Cu, Ni or Fe; a = 5-10; b = 0-4; c = 2-5; d = 0.02-0.15; e = 0.5-4; f = 1-5; g = 1-2; h = 1-4; m, n = number of O atoms dependent upon the valency and number of elements.

公开(公告)号：BRPI0416073B1

公开(公告)日：2014-03-25

申请号：BRPI0416073

申请日：2004-10-15

Applicant: BASF AG

Inventor： DIETERLE MARTIN ,  PETZOLDT JOCHEN ,  MUELLER-ENGEL KLAUS JOACHIM

IPC: C07C45/35 ,  B01J23/00 ,  B01J23/887 ,  B01J23/888 ,  B01J23/94 ,  B01J35/00 ,  B01J38/12 ,  B01J38/14 ,  C07C47/22

Abstract: The invention relates to the long term operation of a heterogeneously catalysed gas phase partial oxidation of propene in order to form acrolein. The temperature of the solid bed catalyst increases over time, gas phase partial oxidation is interrupted at least once per calendar year, and a gas mixture (G) is guided through the solid bed catalyst having a temperature of between 250 - 550 DEG C, said gas mixture consisting of molecular oxygen, inert gas and, optionally, steam.

公开(公告)号：RU2391330C9

公开(公告)日：2011-05-10

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