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71. 发明专利

DE10119933A1 Production of acrolein or acrylic acid involves absorption of propane and propene from a gas mixture followed by desorption and oxidation, with no catalytic dehydrogenation of propane and no added oxygen 未知
公开(公告)号：DE10119933A1
公开(公告)日：2002-10-24
申请号：DE10119933
申请日：2001-04-23
申请人： BASF AG
发明人： BORGMEIER FRIEDER , TENTEN ANDREAS , HIBST HARTMUT , MUELLER-ENGEL KLAUS JOACHIM , UNVERRICHT SIGNE , COX GERHARD
IPC分类号： B01J23/00 , B01J23/28 , B01J27/057 , B01J37/02 , C07C45/33 , C07C45/35 , C07C57/05
摘要： Acrolein and acrylic acid are produced from propane and propene by absorption/desorption of propane and propene from a gas mixture followed by oxidation, in which no heterogeneously catalyzed dehydrogenation of propane occurs between the desorption and oxidation stages without addition of oxygen. Acrolein and acrylic acid are produced from propane and propene by: (a) separation of propane and propene from a gas mixture (A) by absorption in an absorption medium; (b) separation of propane and propene from the absorbent to give a mixture (B) containing propane and propene; and (c) using mixture (B) for oxidation to the required product(s). In this process, no catalytic dehydrogenation of propane without the addition of oxygen is carried out between stages (b) and (c).

72. 发明专利

DE10034825A1 Production of acrolein or acrylic acid involves absorption of propane and propene from a gas mixture followed by desorption and oxidation, with no catalytic dehydrogenation of propane and no added oxygen 未知
公开(公告)号：DE10034825A1
公开(公告)日：2002-01-31
申请号：DE10034825
申请日：2000-07-18
申请人： BASF AG
发明人： BORGMEIER FRIEDER , TENTEN ANDREAS , HIBST HARTMUT , MUELLER-ENGEL KLAUS JOACHIM , UNVERRICHT SIGNE , COX GERHARD
IPC分类号： B01J23/00 , B01J23/28 , B01J27/057 , B01J37/02 , C07C45/33 , C07C45/35 , C07C57/05 , B01J23/16
摘要： Acrolein and acrylic acid are produced from propane and propene by absorption/desorption of propane and propene from a gas mixture followed by oxidation, in which no heterogeneously catalyzed dehydrogenation of propane occurs between the desorption and oxidation stages without addition of oxygen. Acrolein and acrylic acid are produced from propane and propene by: (a) separation of propane and propene from a gas mixture (A) by absorption in an absorption medium; (b) separation of propane and propene from the absorbent to give a mixture (B) containing propane and propene; and (c) using mixture (B) for oxidation to the required product(s). In this process, no catalytic dehydrogenation of propane without the addition of oxygen is carried out between stages (b) and (c).

73. 发明专利

DE19955168A1 未知
公开(公告)号：DE19955168A1
公开(公告)日：2001-05-17
申请号：DE19955168
申请日：1999-11-16
申请人： BASF AG
发明人： TENTEN ANDREAS , HIBST HARTMUT , MACHHAMMER OTTO , HECHLER CLAUS , MUELLER-ENGEL KLAUS JOACHIM , UNVERRICHT SIGNE
IPC分类号： C07C51/215 , C07B61/00 , C07C51/25 , C07C57/04 , C07C57/05
摘要： The invention relates to a method for carrying out the two-stage catalytic gas phase oxidation of propene to form acrylic acid. The inventive method provides that, in a multitube fixed-bed reactor, the reaction gas starting mixture having a propene load >/= 160 Nl propene / l.h is firstly conducted over a fixed-bed catalyst feed material (1), which is located in two successive temperature zones A, B, and afterwards, is conducted over a fixed-bed catalyst feed material (2), which is accommodated either in another temperature zone C or in two additional temperature zones D, E. The temperature of zone A is maintained at a lower temperature than that of zone B, and the temperature of zone D is maintained at a lower temperature than that of zone E.

74. 发明专利

DE19856565A1 未知
公开(公告)号：DE19856565A1
公开(公告)日：2000-06-15
申请号：DE19856565
申请日：1998-12-08
申请人： BASF AG
发明人： SUTORIS HEINZ FRIEDRICH , WAGENBLAST GERHARD , SCHLIEPHAKE VOLKER , SCHROEDER JUERGEN , MUELLER-ENGEL KLAUS JOACHIM , JAWOREK THOMAS , KELLER HARALD
IPC分类号： C07C45/86 , C07B63/04 , C07C47/22 , C07C51/50 , C07C51/64 , C07C57/075 , C07C67/62 , C07C69/54 , C01B25/163 , C07C291/04 , C07D211/94 , C07F9/141
摘要： A method for stabilizing chemical compounds containing at least one ethylenically unsaturated bond in order to prevent undesirable radical polymerization, whereby a nitroxyl radical and a chemical compound containing chemically bonded phosphorus are added to an unsaturated compound existing in the form of a pure substance or constituent in a mixture.

75. 发明专利

BRPI0416633B1 未知
公开(公告)号：BRPI0416633B1
公开(公告)日：2014-04-08
申请号：BRPI0416633
申请日：2004-11-16
申请人： BASF AG
发明人： PETZOLDT JOCHEN , MUELLER-ENGEL KLAUS JOACHIM
IPC分类号： B01J23/888 , B01J35/00 , B01J35/02 , C07C45/35 , C07C47/22
摘要： The invention relates to a method for the heterogeneously-catalysed gas-phase partial oxidation of propene to produce acrolein with a propene loading of the catalyst bed of > 120 Nl/l h and a total content of CO2 and saturated hydrocarbons in the reaction product of less than 15 mol. %, whereby the catalyst in the catalyst bed is an annular full catalyst, the active mass of which is a multi-metal oxide in which the molar ratios are Co/Fe = 2 to 4 and Co/Mo = 0.3 to 0.7.

76. 发明专利

BRPI0414556B1 未知
公开(公告)号：BRPI0414556B1
公开(公告)日：2014-04-08
申请号：BRPI0414556
申请日：2004-09-17
申请人： BASF AG
发明人： PETZOLDT JOCHEN , MUELLER-ENGEL KLAUS JOACHIM , UNVERRICHT SIGNE
IPC分类号： B01J35/02 , B01J23/00 , B01J23/887 , B01J23/888 , B01J35/00 , B01J35/10 , B01J37/00 , B01J37/08 , C07C45/35 , C07C45/37 , C07C51/25
摘要： 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

77. 发明专利

DE102006054214A1 Exothermic heterogeneously catalyzed partial gas phase oxidation of a starting compound e.g. propylene to a target compound e.g. acrylic acid, comprises oxidizing a gas mixture containing e.g. the starting compound and molecular oxygen 未知
公开(公告)号：DE102006054214A1
公开(公告)日：2008-05-21
申请号：DE102006054214
申请日：2006-11-15
申请人： BASF AG
发明人： PETZOLDT JOCHEN , DIETERLE MARTIN , MUELLER-ENGEL KLAUS JOACHIM
IPC分类号： C07C57/05 , C07B33/00 , C07C47/22
摘要： Conducting an exothermic heterogeneously catalyzed partial gas phase oxidation of an organic starting compound to an organic target compound in two different operating conditions I and II, comprises oxidizing a reaction gas starting mixture containing the organic starting compound, molecular oxygen and at least an inert dilution gas, through a solid bed catalyst present in the tube of a tube bundle reactor to produce a product mixture containing the organic target compound. Conducting an exothermic heterogeneously catalyzed partial gas phase oxidation of an organic starting compound to an organic target compound in two different operating conditions I and II, comprises oxidizing a reaction gas starting mixture containing the organic starting compound, molecular oxygen and at least an inert dilution gas, through a solid bed catalyst present in the tube of a tube bundle reactor to produce a product mixture containing the organic target compound; where: the tubes are surrounded by spaces for adjusting the reaction temperature; at least a fluid thermal carrier is passed in with an inlet temperature (Ti) and passed out with an outlet temperature (To) through the tubes; the outlet temperature is greater than the inlet temperature; the solid bed catalyst is charged with a load (L1) having the organic starting compound in an operating condition I at an inlet temperature (Ti1) and is charged with a load (L2) having the organic starting compound in the operating condition II at an inlet temperature (Ti2); the load (L2) is greater than the load (L1) and the inlet temperature (Ti2) is greater than (Ti1); the inlet temperature (Ti1) is elevated to the inlet temperature (Ti2) during the change of operating condition I to the operating condition II and subsequently the loading of the solid bed catalyst with the organic starting compound increases the (L1) value to the (L2) value.

78. 发明专利

DE102007019597A1 Partial gas phase oxidation of acrolein to acrylic acid or methacrolein to methacrylic acid, useful e.g. as monomer to prepare polymers, comprises using a tube bundle reactor in reaction tube of a vertically arranged reaction tubes 未知
公开(公告)号：DE102007019597A1
公开(公告)日：2008-05-15
申请号：DE102007019597
申请日：2007-04-24
申请人： BASF AG
发明人： HAMMON ULRICH , FRIESE THORSTEN , PETZOLDT JOCHEN , MUELLER-ENGEL KLAUS JOACHIM , CREMER ULRICH , RAICHLE ANDREAS
IPC分类号： C07C57/055
摘要： Process for implementing a heterogeneously catalyzed partial gas phase oxidation of acrolein to acrylic acid or methacrolein to methacrylic acid in a solid catalyst bed comprises using a tube bundle reactor in reaction tube of a vertically arranged bundle of reaction tubes (9), which are closed by a reactor jacket; where: the both ends of the individual reaction tubes are open and each reaction tubes terminate with its upper end in a passage of a top tube plate sealed above in reactor jacket and with its lower end in a passage of a down tube plate (5) sealed below in reactor jacket. Process for implementing a heterogeneously catalyzed partial gas phase oxidation of acrolein to acrylic acid or methacrolein to methacrylic acid in a solid catalyst bed comprises using a tube bundle reactor in reaction tube of a vertically arranged bundle of reaction tubes (9), which are closed by a reactor jacket; where: the both ends of the individual reaction tubes are open and each reaction tubes terminate with its upper end in a passage of a top tube plate sealed above in reactor jacket and with its lower end in a passage of a down tube plate (5) sealed below in reactor jacket; the exterior of the reaction tubes, the top and the down tube plate, and the reactor jacket differentiate conjointly to the reaction tube surrounding chamber, and each of the two tube plates is spanned by at least a reactor cover (6) having an opening, with which, in order to set start-up in several respects, to the reaction tubes of the tube bundle reactor, at least an opening (3) in one of the both reactor covers supplies a reaction gas inlet mixture (1) containing >= 3 vol.% of acrolein or methacrolein and additionally molecular oxygen; at least an opening of the other reactor cover discharges by partial gas phase oxidation of the acrolein to acrylic acid or methacrolein to methacrylic acid, where the passage of the product gas mixture (2) containing acrylic acid or methacrylic acid results in the solid catalyst bed, which is present in the reaction tubes; at least a liquid heat exchange medium is supplied on the jacket side of the tube bundle reactor around the reaction tubes in such a manner that each of the two surfaces, which turned to each other, of the two tube plates is moistened by liquid heat exchange medium; the liquid heat exchange medium is inwardly introduced with a temperature T w(in) into the reaction tubes surrounding chamber and is outwardly emitted with the temperature T w(out) from the reaction tubes surrounding chamber; the temperature T w(in) of the liquid heat exchange medium, which moistens the tube plate spanned by the tube cover having the at least one opening, is at least 290[deg] C; the reaction gas inflow mixture entering into the opening has a temperature of = 285[deg] C, and the temperature of the surface of the reactor plate (4) turned to the reactor cover having at least an opening, has a value of = 285[deg] C.

79. 发明专利

DE50113515D1 未知
公开(公告)号：DE50113515D1
公开(公告)日：2008-03-06
申请号：DE50113515
申请日：2001-09-20
申请人： BASF AG
发明人： ARNOLD HEIKO , UNVERRICHT SIGNE , FELDER RAIMUND , HARTH KLAUS , MUELLER-ENGEL KLAUS JOACHIM
IPC分类号： 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
摘要： 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.

80. 发明专利

DE102006024901A1 Preparing acrylic acid comprises supplying propane gas to a zone to give a gas containing e.g. propylene, supplying molecular oxygen, feeding oxidation reactor with another gas containing e.g. propylene and subjecting the gas to oxidation 未知
公开(公告)号：DE102006024901A1
公开(公告)日：2007-11-29
申请号：DE102006024901
申请日：2006-05-24
申请人： BASF AG
发明人： MACHHAMMER OTTO , MUELLER-ENGEL KLAUS JOACHIM , DIETERLE MARTIN
IPC分类号： C07C45/28
摘要： Preparing acrolein and/or acrylic acid from propane comprises supplying two gaseous, propane-containing current to a first reaction zone A, under the formation of a reaction gas A; introducing the reaction gas A to a reaction zone A, supplying molecular oxygen and removing the product gas containing propylene, propane and water vapor; separating water vapor from the product gas A; feeding oxidation reactor with a reaction gas B containing propane, propylene and molecular oxygen and subjecting propylene to heterogeneously catalyzed, partial gas-phase oxidation. Preparation of acrolein and/or acrylic acid from propane comprises: (a) supplying at least two gaseous, propane-containing current (where one contains at least a fresh propane) to a first reaction zone A, under the formation of a reaction gas A; introducing the reaction gas A in the reaction zone A, formed through at least a catalyst bed by means of partial heterogeneous catalytic dehydrogenation of propane, molecular hydrogen and propylene, supplying molecular oxygen to the reaction zone A, where the molecular oxygen oxidizes a partial quantity of molecular hydrogen contained in the reaction gas A to form water vapor in the reaction zone A, and removing the product gas containing propylene, propane and water vapor, from the reaction zone A; (b) partially or completely separating, optionally in a first separation zone I, the water vapor contained in the product gas A by means of condensation incorporating indirect and/or direct cooling of the product gas A, while leaving behind a product gas Aa; (c) using the product gas A or Aa along with the supply of molecular oxygen, in a reaction zone B, for feeding at least an oxidation reactor with a reaction gas B containing propane, propylene and molecular oxygen, and subjecting the propylene contained in the reactor to heterogeneously catalyzed, partial gas-phase oxidation to form acrolein and/or acrylic acid as end product, and product gas B containing non-converted propane; (d) discharging the product gas B from the reaction zone B and separating the end product in a second separation zone II, while leaving behind a residual gas containing propane; (e) optionally reintroducing the partial quantity of the residual gas exhibiting the same composition of the residual gas as a propane-containing feed stream into the reaction zone A; (f) partially or completely separating the water vapor and/or the molecular hydrogen, in a separation zone III, which are possibly contained previously in the residual gas that is not fedback into the reaction zone A, by means of condensation and membrane separation processes respectively, and taking up the contained propane from the residual gas by absorption in an organic solvent under the formation of an absorbed substance that contains propane; and (g) separating the propane, in a separation zone IV, from the absorbed substance and reintroducing as propane-containing feed stream into the reaction zone A, where in the reaction zone A, at least lot of molecular hydrogen is oxidized to form water vapor, so that the hydrogen quantity that is oxidized in the reaction zone A to form water vapor amounts to at least 20 mol.% of the quantity of molecular hydrogen that is formed in the reaction zone A.

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