公开(公告)号：DE19955176A1

公开(公告)日：2001-01-04

申请号：DE19955176

申请日：1999-11-16

Applicant: BASF AG

Inventor： TENTEN ANDREAS ,  HIBST HARTMUT ,  MACHHAMMER OTTO ,  HECHLER CLAUS ,  MUELLER-ENGEL KLAUS JOACHIM ,  UNVERRICHT SIGNE

IPC: B01J23/00 ,  B01J23/887 ,  B01J35/00 ,  C07C51/25 ,  C07C57/05

Abstract: Catalytic gas phase oxidation of propene to acrylic acid involves using two different fixed bed catalysts, in different reaction zones, with active components comprising multi-metal oxides of different composition and containing iron, molybdenum and optionally bismuth. Catalytic gas phase oxidation of propene to acrylic acid comprises: (i) reacting O2 and propene in a ratio of at least 1 and an inert gas; (ii) passing over a fixed bed catalyst (FBC) (FBC1), comprising a multi-metal oxide containing at least Mo, Fe and Bi, in a reaction zone (RZ) (A), the propene conversion and the subsequent acrolein and acrylic acid product formation being at least 90 mol.%, optionally in the presence of oxygen and/or inert gas in a ratio of O2:propene of at least 0.5; and (iii) passing over a second FBC (FBC2), comprising a predischarge active component(s) comprising a multi-metal oxide(s) containing at least Mo and Fe and a postdischarge active component(s) comprising a multi-metal oxide(s) containing at least Mo and V at least one of which also contains an amount of Bi that is smaller than in the first FBC, where the amount of Fe in a postdischarge component(s) is lower than in a predischarge component(s), in a second RZ (B), which is at a lower temperature than RZ (A), to give an acrolein conversion in RZ (B) of at least 90 mol.% and an acrylic acid selectivity over both reaction zones of at least 80 mol %.

公开(公告)号：BR9909451A

公开(公告)日：2000-12-12

申请号：BR9909451

申请日：1999-03-26

Applicant: BASF AG

Inventor： HIBST HARTMUT ,  UNVERRICHT SIGNE

IPC: C01G39/00 ,  B01J23/88 ,  B01J23/887 ,  B01J35/00 ,  C01G41/00 ,  C01G53/00 ,  C07B61/00 ,  C07C51/25 ,  C07C57/055

公开(公告)号：DE19837519A1

公开(公告)日：2000-02-24

申请号：DE19837519

申请日：1998-08-19

Applicant: BASF AG

Inventor： MACHHAMMER OTTO ,  TENTEN ANDREAS ,  JACHOW HARALD ,  HAUPT SUSANNE ,  ARNOLD HEIKO ,  UNVERRICHT SIGNE

IPC: C07C45/33 ,  C07C45/35 ,  C07C47/22 ,  C07C51/215 ,  C07C51/25 ,  C07C27/14 ,  C07C57/04 ,  C07C57/05 ,  C07C57/055 ,  C07C5/333 ,  C07C11/06

Abstract: In the production of acrolein and/or acrylic acid from propane, the oxygen required in reaction stage 1 (catalytic dehydrogenation to propene) is supplied in the form of air and at least some of the N2 in the residual gas from final product work-up is removed before this gas is recycled to stage 1. A process for the production of acrolein (AC) and/or acrylic acid (AA) from propane, involving (1) partial oxydehydrogenation to propene with molecular oxygen using homogeneous and/or heterogeneous catalysts, (2) catalytic gas-phase oxidation of the propene-containing product gas in further stage(s) to give AC and/or AA, (3) separation of AC and/or AA and water and (4) recycling the unreacted propane in the residual gas back to stage 1. In this process, the molecular oxygen required in stage 1 (other than circulating oxygen) is added to the starting gas mixture in the form of air, and at least some of the N2 is separated from the residual gas before this is recycled to stage 1.

公开(公告)号：DE19837517A1

公开(公告)日：2000-02-24

申请号：DE19837517

申请日：1998-08-19

Applicant: BASF AG

Inventor： MACHHAMMER OTTO ,  TENTEN ANDREAS ,  JACHOW HARALD ,  HAUPT SUSANNE ,  ARNOLD HEIKO ,  UNVERRICHT SIGNE

IPC: C07C27/12 ,  C07B61/00 ,  C07C5/48 ,  C07C11/06 ,  C07C45/28 ,  C07C45/33 ,  C07C45/35 ,  C07C47/22 ,  C07C51/215 ,  C07C51/25 ,  C07C57/05 ,  C07C57/055 ,  C07C5/333

Abstract: In the production of acrolein and/or acrylic acid from propane, the oxygen required in reaction zone 1 (catalytic dehydrogenation to propene) is supplied as nitrogen-containing modified air containing less N2 and more O2 than normal air and some of the N2 in the off-gas from further zones (propene oxidation) is removed before recycling to zone 1. A process for the production of acrolein (AC) and/or acrylic acid (AA) from propane, involving (a) partial oxydehydrogenation to propene with molecular oxygen in a first reaction zone (1) using homogeneous and/or heterogeneous catalysts, (b) further catalytic gas-phase oxidation of the unseparated product gas mixture in further reaction zone(s) (2) to give AC and/or AA, (c) separation of AC and/or AA and water from the product mixture and (d) recycling unreacted propane to zone 1. In this process, the molecular oxygen required in zone 1 (other than circulating oxygen) is added to the starting gas mixture in the form of nitrogen-containing modified air with a lower N2 content and a higher O2 content than normal air, and at least some of the molecular N2 in the residual gas stream is removed before this stream is recycled to zone 1.

公开(公告)号：DE19807079A1

公开(公告)日：1999-08-26

申请号：DE19807079

申请日：1998-02-20

Applicant: BASF AG

Inventor： JACHOW HARALD ,  TENTEN ANDREAS ,  UNVERRICHT SIGNE ,  ARNOLD HEIKO

IPC: B01J23/00 ,  C07C45/33 ,  C07C51/215 ,  C07C59/66 ,  C07C69/716 ,  C07C69/734 ,  C07C57/05 ,  B01J23/882 ,  B01J23/887 ,  B01J23/888 ,  C07C45/28 ,  C07C47/22

Abstract: Heterogeneous, catalytic, gas-phase oxidation of propane to acrolein and/or acrylic acid comprises passing a mixture of propane, oxygen and optionally an inert gas, at 300-500 deg C, over a two-part fixed-bed catalyst, each part containing different, specific mixed metal oxide phases. The catalyst in the first bed (A) has the formula M a Mo1-bM b Ox (I) M = cobalt, nickel, magnesium, manganese and/or copper; M = wolfram, vanadium, tellurium, niobium, phosphorus, chromium, iron, antimony, cerium, tin and/or lanthanum; a = 0.5-1.5; b = 0-0.5; x = a number required to satisfy the valencies of the other components and the catalyst in the second bed (B) has formula Bia,Mob, X c, X d, X e, X f, X g, X h, Ox, (II) X = wolfram, vanadium and/or tellurium; X = alkaline earth metal, cobalt, nickel, zinc, manganese, copper, cadmium, tin and/or mercury; X = iron, chromium and/or cerium; X = phosphorus, arsenic, antimony and/or boron; X = alkali metal, thallium and/or tin; X = rare earth metal, titanium, zirconium, niobium, tantalum, rhenium, ruthenium, rhodium, silver, gold, aluminum, gallium, indium, silicon, germanium, thorium and/or uranium; a' = 0.01-8; b' = 0.1-30; c', d' and e' = 0-20; f' = 0-6; g' = 0-4; h' = 0-15 The starting mixture of reactants contains at least 5 volume % propane, at least 15 volume % oxygen and 0-35 volume % inert gas and it passes through layer A first, then through B.

公开(公告)号：BRPI0414556B1

公开(公告)日：2014-04-08

申请号：BRPI0414556

申请日：2004-09-17

Applicant: BASF AG

Inventor： PETZOLDT JOCHEN ,  MUELLER-ENGEL KLAUS JOACHIM ,  UNVERRICHT SIGNE

IPC: B01J35/02 ,  B01J23/00 ,  B01J23/887 ,  B01J23/888 ,  B01J35/00 ,  B01J35/10 ,  B01J37/00 ,  B01J37/08 ,  C07C45/35 ,  C07C45/37 ,  C07C51/25

Abstract: The invention relates to a method for the production of annular-shaped super catalysts by thermally treating annular-shaped super precursor moulded bodies. The lateral pressure resistance of the annular shaped super catalyst precursor moulded body is > 12 N and

公开(公告)号：DE50113515D1

公开(公告)日：2008-03-06

申请号：DE50113515

申请日：2001-09-20

Applicant: BASF AG

Inventor： ARNOLD HEIKO ,  UNVERRICHT SIGNE ,  FELDER RAIMUND ,  HARTH KLAUS ,  MUELLER-ENGEL KLAUS JOACHIM

IPC: C07C45/00 ,  B01J6/00 ,  B01J19/18 ,  B01J19/22 ,  B01J23/88 ,  B01J23/888 ,  B01J35/00 ,  B01J37/08 ,  C07B61/00 ,  C07C27/14 ,  C07C45/33 ,  C07C45/34 ,  C07C45/35 ,  C07C45/38 ,  C07C47/22 ,  C07C51/215 ,  C07C51/25 ,  C07C57/05 ,  F27B9/24

Abstract: Production of a catalyst for gas phase oxidation of organic compounds to alpha ,beta -unsaturated aldehydes and/or carboxylic acids, comprises an active phase of multimetal oxide composition being produced from a particulate precursor containing oxides and/or precursors and activated by calcination. Production of a catalyst for gas phase oxidation of organic compounds to alpha ,beta -unsaturated aldehydes and/or carboxylic acids, comprises an active phase of multimetal oxide composition being produced from a particulate precursor containing oxides and/or precursors and activated by calcination. A stream of precursor is fed at constant rate through calcination zone(s), in which the maximum temperature varies with time and locally are at most 5[deg]C. Independent claims are also included for: (a) a catalyst charge containing a specified active phase; (b) the production of alpha ,beta - unsaturated aldehydes and/or carboxylic acids over this catalyst charge; and (c) a belt calciner with heatable chamber(s) and gas-permeable conveyor belt for particulate material, running through the chamber(s), in which the chamber is provided with means of gas circulation by forced convection.

公开(公告)号：DE50210942D1

公开(公告)日：2007-10-31

申请号：DE50210942

申请日：2002-12-04

Applicant: BASF AG

Inventor： HAESE FRANK ,  EBEL KLAUS ,  BURKART KIRSTEN ,  UNVERRICHT SIGNE ,  MUENSTER PETER

IPC: C07C29/56 ,  C07B61/00 ,  C07C33/02

Abstract: The present invention relates to a process for isomerizing reactant allyl alcohols to product allyl alcohols in the presence of a catalyst, wherein the reactant allyl alcohol is rearranged to product allyl alcohol in semicontinuous or continuous mode in a catalyst-containing suitable reactor. In particular, the process according to the invention is used to prepare linalool from Geraniol and/or nerol.

公开(公告)号：DE10360057A1

公开(公告)日：2004-07-29

申请号：DE10360057

申请日：2003-12-19

Applicant: BASF AG

Inventor： DIETERLE MARTIN ,  POEPEL WOLFGANG JUERGEN ,  BERNDT SILKE ,  FELDER RAIMUND ,  UNVERRICHT SIGNE ,  MUELLER-ENGEL KLAUS JOACHIM

IPC: B01J6/00 ,  B01J23/00 ,  B01J23/20 ,  B01J23/28 ,  B01J23/888 ,  B01J27/057 ,  B01J37/02 ,  B01J37/08 ,  C07C51/25 ,  F27B7/20 ,  F27D17/00 ,  B01J8/06

Abstract: Heat treating a catalyst precursor in a rotary kiln through which a gas stream is passed comprises recirculating at least part of the gas stream. Independent claims are also included for the following: (1) a rotary kiln apparatus comprising a circulating gas compressor (13), an off-gas compressor (17), a pressure reducer (15), a fresh gas supply (20, 21), a heatable rotating tube (1) and a gas recycle line; (2) a reactor with a nest of 5000-40000 contact tubes packed with a catalyst produced as above comprising a mixed oxide of molybdenum (Mo), vanadium (V) and niobium (Nb) and/or tungsten (W), where the Mo content is 20-80 mole%, the Mo/V molar ratio is 1-15:1, the Mo/(W+Nb) molar ratio is 80:1 to 1:4, and the arithmetic mean activity for partial oxidation of acrolein to acrylic acid for a random sample of 12 contact tubes differs from the highest or lowest activity by no more than 8degreesC; and (3) a reactor with a nest of 5000-40000 contact tubes packed with a catalyst produced as above comprising a mixed oxide of Mo, V and tellurium and/or antimony and niobium, tantalum, tungsten, titanium, aluminum, zirconium, chromium, manganese, gallium, iron, ruthenium, cobalt, rhodium, nickel, palladium, platinum, lanthanum, bismuth, boron, cerium, tin, zinc, silicon, sodium, lithium, potassium, magnesium, silver, gold and/or indium, where the arithmetic mean activity for partial oxidation of acrolein to acrylic acid for a random sample of 12 contact tubes differs from the highest or lowest activity by no more than 8degreesC.

公开(公告)号：AT268223T

公开(公告)日：2004-06-15

申请号：AT01986623

申请日：2001-10-09

Applicant: BASF AG

Inventor： PETZOLDT JOCHEN ,  UNVERRICHT SIGNE ,  ARNOLD HEIKO

IPC: B01J23/88 ,  B01J23/887 ,  B01J35/10 ,  B01J37/00 ,  B01J37/02 ,  C07B61/00 ,  C07C45/35 ,  C07C47/22

Abstract: Coated catalysts which are suitable for the gas-phase catalytic oxidation of propene to acrolein are prepared by a process in which rings are used as supports and water is used as a binder.