公开(公告)号：BRPI0408539B1

公开(公告)日：2021-01-05

申请号：BRPI0408539

申请日：2004-03-20

Applicant: BASF AG ,  BASF SE

Inventor： HEIKO ARNOLD ,  JOCHEN PETZOLDT ,  KLAUS JOAQUIM MÜLLER-ENGEL ,  MARTIN DIETERLE

IPC: C07C57/05 ,  C07C51/25 ,  C07C57/055

Abstract: "processo para a oxidação parcial de acroleína para ácido acrílico em fase gasosa". a invenção refere-se a um método para a oxidação em fase gasosa parcial heterogeneamente catalisada de acroleína para ácido acrílico, de acordo com o qual, a mistura do gás da reação inicial tendo um carga de acroleína = 145 e = 70 ni de acroleína por litro de leito de catalisador fixo/ h é oxidada em um leito de catalisador fixo, que é acomodado em duas zonas de reação sucessivas a, b. a temperatura máxima da mistura do gás da reação dentro da zona a está acima da temperatura máxima da mistura do gás da reação dentro da zona b.

公开(公告)号：ZA200508597B

公开(公告)日：2007-02-28

申请号：ZA200508597

申请日：2005-10-24

Applicant: BASF AG

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

IPC: C07C20090101 ,  C07C51/25

公开(公告)号：ZA200508593B

公开(公告)日：2007-02-28

申请号：ZA200508593

申请日：2005-10-24

Applicant: BASF AG

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

IPC: C07C20090101 ,  C07C51/25

公开(公告)号：ZA200508599B

公开(公告)日：2007-01-31

申请号：ZA200508599

申请日：2005-10-24

Applicant: BASF AG

Inventor： MARTIN DIETERLE ,  JOCHEN PETZOLDT ,  HEIKO ARNOLD ,  WILHELM RUPPEL ,  JOACHIM MULLER-ENGEL KLAUS

IPC: C07C20090101 ,  C07C51/10 ,  C07C51/25

Abstract: A process for the catalyzed partial gas phase oxidation of acrolein to acrylic acid comprises processing a reaction mixture comprising acrolein, molecular oxygen and at least one inert gas in a molar ratio of O 2 to C 3H 4O of at least 0.5 in a reaction step using a fixed catalyst bed comprising a multi metal oxide containing Mo and V whereby the fixed catalyst bed comprises two separate temperature zones A and B arranged in series. A process for the catalyzed partial gas phase oxidation of acrolein to acrylic acid comprises processing a reaction mixture comprising acrolein, molecular oxygen and at least one inert gas in a molar ratio of O 2 to C 3H 4O of at least 0.5 in a reaction step using a fixed catalyst bed. The catalyst comprised a multi metal oxide containing Mo and V whereby the fixed catalyst bed comprises two separate temperature zones A and B arranged in series. The temperature zones are maintained at 230-320[deg]C, such that the volume specific activity within a fixed catalyst zone is essentially constant and has a step-wise increase in the flow direction of the aqueous reaction mixture by transfer from one fixed catalyst zone to the other. A conversion of 45-85 mol.% acrolein is achieved in zone A; an acrolein conversion of at least 90 mol.% with selectivity to acrylic acid of at least 90 mol.% achieved by a single pass through the total fixed catalyst bed with flow through A followed by B. The catalyst bed loading of acrolein is at least 70 Nl acrolein per liter of catalyst bed per hour; the difference between the maximum temperatures in both zones A and B is at least 0[deg]C; whereby the transition from temperature zone A to temperature zone B does not occur with a transfer from one fixed catalyst zone to another fixed catalyst zone.

公开(公告)号：DE10015250A1

公开(公告)日：2001-10-04

申请号：DE10015250

申请日：2000-03-28

Applicant: BASF AG

Inventor： HEIKO ARNOLD ,  FREIRE ERDBRUEGGER CRISTINA ,  HEIDEMANN THOMAS ,  MEYER GERALD ,  UNVERRICHT SIGNE ,  FRENZEL ANDREA ,  WULFF-DOERING JOACHIM ,  ANSMANN ANDREAS

IPC: B01J35/06 ,  B01J23/42 ,  B01J23/44 ,  B01J23/48 ,  B01J23/50 ,  B01J23/70 ,  B01J23/755 ,  B01J37/02 ,  C07B61/00 ,  C07C5/02 ,  C07C5/03 ,  C07C5/08 ,  C07C7/163 ,  C07C7/167 ,  C07C11/04 ,  C07C11/06 ,  C07C11/08 ,  B01J35/02 ,  B01J23/38 ,  C07C7/148 ,  C07B35/02 ,  C07B63/00

Abstract: The invention relates to a shell catalyst with a core and at least one shell surrounding the core, said core being composed of an inert carrier material, and the at least one shell being composed of a porous carrier substance. The shell is physically adhered to the core and the at least one shell contains a catalytically active metal selected from the group of metals of the 10 and 11 group of the periodic table of elements in a finely divided form, or a precursor of the catalytically active metal in a uniformly divided form. The inventive shell catalyst is suitable for reducing unsaturated hydrocarbons and allows for better selectivities in comparison with shell catalysts known so far. The invention further relates to a method for producing the inventive shell catalyst.

公开(公告)号：BRPI0408539B8

公开(公告)日：2021-02-02

申请号：BRPI0408539

申请日：2004-03-20

Applicant: BASF AG ,  BASF SE

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

IPC: C07C57/05 ,  C07C51/25 ,  C07C57/055

Abstract: "processo para a oxidação parcial de acroleína para ácido acrílico em fase gasosa". a invenção refere-se a um método para a oxidação em fase gasosa parcial heterogeneamente catalisada de acroleína para ácido acrílico, de acordo com o qual, a mistura do gás da reação inicial tendo um carga de acroleína = 145 e = 70 ni de acroleína por litro de leito de catalisador fixo/ h é oxidada em um leito de catalisador fixo, que é acomodado em duas zonas de reação sucessivas a, b. a temperatura máxima da mistura do gás da reação dentro da zona a está acima da temperatura máxima da mistura do gás da reação dentro da zona b.

公开(公告)号：ZA200602036B

公开(公告)日：2007-05-30

申请号：ZA200602036

申请日：2006-03-10

Applicant: BASF AG

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

IPC: C07C20090101 ,  C07C45/35 ,  C07C51/25