专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

51. 发明专利

DE502004004897D1 未知
公开(公告)号：DE502004004897D1
公开(公告)日：2007-10-18
申请号：DE502004004897
申请日：2004-08-06
申请人： BASF AG
发明人： WALSDORFF CHRISTIAN , FIENE MARTIN , SESING MARTIN , METELKINA OLGA , SEIDEMANN LOTHAR , STROEFER ECKHARD , HARTH KLAUS
IPC分类号： C01B7/04
摘要： The invention relates to a process for preparing chlorine by catalytic gas-phase oxidation of hydrogen chloride, which comprises the steps: a) providing a feed gas stream I comprising hydrogen chloride and a feed gas stream II comprising oxygen; b) in a first oxidation stage, feeding the feed gas stream I, the feed gas stream II, if desired a recycle stream la comprising hydrogen chloride and if desired an oxygen-containing recycle stream IIa into a first oxidation zone and bringing them into contact with a first oxidation catalyst so that a first partial amount of the hydrogen chloride is oxidized to chlorine and a gas stream III comprising chlorine, unreacted oxygen, unreacted hydrogen chloride and water vapor is obtained; c) in a second oxidation stage, feeding the gas stream III into a second oxidation zone and bringing it into contact with at least one further oxidation catalyst so that a second partial amount of the hydrogen chloride is oxidized to chlorine and a product gas stream IV comprising chlorine, unreacted oxygen, unreacted hydrogen chloride and water vapor is obtained; d) isolating chloride, if desired the recycle stream Ia and if desired the recycle stream IIa from the product gas stream IV, wherein the first oxidization catalyst in the first oxidation zone is present in a fluidized bed and the further oxidation catalyst or catalysts in the second oxidation zone is/are present in a fixed bed.

52. 发明专利

PT1706370E ''PROCESSO DE PREPARAÇÃO DESTILATIVA DE TOLUILENODIAMINA'' 未知
公开(公告)号：PT1706370E
公开(公告)日：2007-10-11
申请号：PT05700737
申请日：2005-01-07
申请人： BASF AG
发明人： PENZEL ULRICH , STROEFER ECKHARD , PALLASCH HANS-JUERGEN , MACKENROTH WOLFGANG , KNOESCHE CARSTEN , MARTIN SOHN , GEORGI GUNTER , SCHWARZ HANS VOLKMAR , MAIXNER STEFAN , MOLZ GERALD
IPC分类号： C07C209/84 , C07C211/50

53. 发明专利

DE102005061316A1 未知
公开(公告)号：DE102005061316A1
公开(公告)日：2007-06-21
申请号：DE102005061316
申请日：2005-12-20
申请人： BASF AG
发明人： WEBER MARKUS , MUELLER CHRISTIAN , STROEFER ECKHARD , ADEL JOERG , FAUST JENS UWE
IPC分类号： C07C309/04

54. 发明专利

MX2007004953A PROCESO PARA PRODUCIR POLIISOCIANATOS. 未知
公开(公告)号：MX2007004953A
公开(公告)日：2007-06-14
申请号：MX2007004953
申请日：2005-10-22
申请人： BASF AG
发明人： VOSS HARTWIG , WOLFERT ANDREAS , STROEFER ECKHARD , SESING MARTIN , ROHDE THORSTEN
IPC分类号： C07C265/12 , C07C263/10 , C07C265/14
摘要： La invencion se refiere a un metodo para producir isocianatos al hacer reaccionar las aminas correspondientes con fosgeno en presencia de solventes. Dicho metodo se caracteriza porque los compuestos formando fusiones de sal con cloruro de hidrogeno se usan como solventes.

55. 发明专利

CA2627080A1 PROCESS FOR PRODUCING TRIOXANE AND AT LEAST ONE COMONOMER 未知
公开(公告)号：CA2627080A1
公开(公告)日：2007-05-10
申请号：CA2627080
申请日：2006-10-27
申请人： BASF AG
发明人： STROEFER ECKHARD , SIEGERT MARKUS , LANG NEVEN , BOEHLING RALF , STAMMER ACHIM , OLDENBURG JAN
IPC分类号： C08G2/10 , C07D317/12 , C07D319/00 , C07D323/06
摘要： The invention relates to a process for producing trioxane and at least one comonomer for producing (co)polymers on a trioxane basis, in which, in a first step, formaldehyde and at least one comonomer starting material are reacted in aqueous solution to form trioxane and comonomer, wherein a reaction mixture A1 containing trioxane, comonomer, formaldehyde, water and if appropriate comonomer starting material is obtained. In a second step, the reaction mixture A1 is distilled in a first distillation stage at a first pressure, wherein a trioxane- and comonomer-enriched stream B1 and an essentially water- , formaldehyde- and if appropriate comonomer starting material-containing stream B2 are obtained. In a third step, the stream B1 is distilled in a second distillation stage at a pressure which is above the pressure of the first distillation stage, wherein a trioxane-, comonomer- and water-containing stream C1 and a product stream C2 essentially consisting of comonomer and trioxane are obtained.

56. 发明专利

DE10295499B4 未知
公开(公告)号：DE10295499B4
公开(公告)日：2007-04-19
申请号：DE10295499
申请日：2002-11-28
申请人： BASF AG
发明人： STROEFER ECKHARD , ARMBRUSTER HARALD , EGBERS GITTA , FREYHOF REINHARD , FRIESE THORSTEN , HECK LUDWIG E , HILDENBRAND PETER , ZEINER HARTMUT , SCHOLL STEPHAN , GOERTZ HANS-HELMUT
IPC分类号： C08G2/08 , C08G4/00

57. 发明专利

DE102005043799A1 未知
公开(公告)号：DE102005043799A1
公开(公告)日：2007-04-12
申请号：DE102005043799
申请日：2005-09-13
申请人： BASF AG
发明人： KLOETZER MATTHIAS , STROEFER ECKHARD , KRASE VOLKER , SCHMIDT ANDREAS , SCHERBEL PETER
IPC分类号： C07C263/06 , C07B43/10
摘要： The invention provides a multistage process for continuously preparing organic, distillable polyisocyanates, preferably diisocyanates, more preferably aliphatic or cycloaliphatic diisocyanates, by reacting the corresponding organic polyamines with carbonic acid derivatives and alcohols to low molecular mass monomeric polyurethanes, and thermally cleaving said polyurethanes, in which at defined reaction stages the polyisocyanates prepared and unusable residues are separated off, and reusable by products and intermediates are recycled to upstream stages.

58. 发明专利

ES2270145T3 PROCEDIMIENTO PARA LA SEPARACION Y PURIFICACION DE DISOLVENTES DE UNA MEZCLA DE REACCION RESULTANTE DE UNA SINTESIS DE ISOCIANATO. 未知
公开(公告)号：ES2270145T3
公开(公告)日：2007-04-01
申请号：ES03785813
申请日：2003-12-13
申请人： BASF AG
发明人： SOHN MARTIN , STROEFER ECKHARD , NEVEJANS FILIP , PENZEL ULRICH , PALLASCH HANS-JURGEN , VAN DEN ABEEL PETER
IPC分类号： C07C263/20
摘要： Procedimiento para la obtención de isocianatos mediante reacción de aminas con fosgeno en presencia de disolventes orgánicos inertes en un reactor, y subsiguiente elaboración de la mezcla de reacción que abandona el reactor, caracterizado porque la separación de disolventes se efectúa en un procedimiento de destilación de dos o más etapas, y separándose el disolvente en una primera instalación a una presión de 0, 1 a 15 bar, y en una segunda instalación, o instalación adicional, a 1 hasta 900 mbar, siendo el nivel de presión en la segunda instalación más reducido que en la primera instalación; situándose la temperatura de cola de la primera columna, según presión, entre 60ºC a 0, 1 bar y 270ºC a 15 bar, y la de la segunda columna, según presión, entre 75ºC a 1 mbar y 250ºC a 900 mbar, y empleándose el calor de condensación del vapor de disolvente de la primera instalación para la evaporación parcial o completa de disolvente en la segunda instalación.

59. 发明专利

DE50306511D1 未知
公开(公告)号：DE50306511D1
公开(公告)日：2007-03-29
申请号：DE50306511
申请日：2003-05-13
申请人： BASF AG
发明人： FRIESE KATRIN , RAULS MATTHIAS , FREYHOF REINHARD , FRIESE THORSTEN , ARMBRUSTER HARALD , ZEINER HARTMUT , EGBERS GITTA , STROEFER ECKHARD , HECK LUDWIG , HILDENBRAND PETER
IPC分类号： C07D323/06
摘要： Production of trioxane by trimerization of formaldehyde in aqueous acid solution followed by separation of trioxane from a crude trioxane product mixture of trioxane, water and formaldehyde comprises: distillation of the crude trioxane; crystallization of the trioxane and; separation from the mother liquor followed by melting and distillation of other byproducts. A process for the production of trioxane by trimerization of formaldehyde in aqueous acid solution followed by separation of trioxane from a crude trioxane product mixture of trioxane, water and formaldehyde comprises: (a) distillation of the crude trioxane; (b) crystallization of the trioxane and; (c) separation from the mother liquor followed by; (d) melting and; (e) distillation of other byproducts.

60. 发明专利

AT353883T 未知
公开(公告)号：AT353883T
公开(公告)日：2007-03-15
申请号：AT03752664
申请日：2003-05-13
申请人： BASF AG
发明人： FRIESE KATRIN , RAULS MATTHIAS , FREYHOF REINHARD , FRIESE THORSTEN , ARMBRUSTER HARALD , ZEINER HARTMUT , EGBERS GITTA , STROEFER ECKHARD , HECK LUDWIG , HILDENBRAND PETER
IPC分类号： C07D323/06
摘要： Production of trioxane by trimerization of formaldehyde in aqueous acid solution followed by separation of trioxane from a crude trioxane product mixture of trioxane, water and formaldehyde comprises: distillation of the crude trioxane; crystallization of the trioxane and; separation from the mother liquor followed by melting and distillation of other byproducts. A process for the production of trioxane by trimerization of formaldehyde in aqueous acid solution followed by separation of trioxane from a crude trioxane product mixture of trioxane, water and formaldehyde comprises: (a) distillation of the crude trioxane; (b) crystallization of the trioxane and; (c) separation from the mother liquor followed by; (d) melting and; (e) distillation of other byproducts.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式