专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO0248128A3 METHOD FOR THE PRODUCTION OF TETRAHYDROFURAN 审中-公开
标题翻译：制备四氢呋喃的方法
公开(公告)号：WO0248128A3
公开(公告)日：2002-08-15
申请号：PCT/EP0114394
申请日：2001-12-07
申请人： BASF AG , FISCHER ROLF-HARTMUTH , STEIN FRANK , PINKOS ROLF , HESSE MICHAEL , SPRAGUE MICHAEL JOLYON , ROESCH MARKUS , BORCHERT HOLGER , SCHLITTER STEPHAN , RAHN RALF-THOMAS , WECK ALEXANDER
发明人： FISCHER ROLF-HARTMUTH , STEIN FRANK , PINKOS ROLF , HESSE MICHAEL , SPRAGUE MICHAEL JOLYON , ROESCH MARKUS , BORCHERT HOLGER , SCHLITTER STEPHAN , RAHN RALF-THOMAS , WECK ALEXANDER
IPC分类号： B01J23/72 , B01J23/80 , C07D307/08 , C07C27/06
CPC分类号： B01J23/72 , B01J23/80 , C07D307/08
摘要： The invention relates to a method for the production of optionally alkyl-substituted THF. The above is obtained by catalytic hydrogenation of C4-dicarboxylic acids and/or derivatives thereof, in the gas phase, using a catalyst containing 20 wt. %, preferably >30 wt %, in particular 35 to 90 wt. % of an oxidic support with acidic centres, whereby the method is carried out with a hot spot temperature of 240 to 280 DEG C and a catalytic loading of 0.01 to 1.0, preferably 0.02 to 1, in particular 0.05 to 0.5 kg reactant/l catalyst.hour.
摘要翻译：本发明描述了任选烷基取代的THF的方法。这是通过在C4二羧酸和/或它们的衍生物的气相催化加氢用催化剂，其包含<80重量％，优选<70重量％获得的（重量），特别是10至65重量％的CuO和> 20的 .-％，优选> 30重量％，特别是35至90重量具有在240热点Temoeratur至280℃的酸中心，与该过程中的氧化性载体的％，和0.01 Katalystorbelastungen 至1.0，优选0.02至1，特别是0.05至0.5千克原料/升Katalysator.Stunde。

2. 发明申请

WO2009079994A2 MIXTURE FOR THE TREATMENT OF UREA-CONTAINING FERTILIZERS 审中-公开
标题翻译：专用料的含脲肥料的处理
公开(公告)号：WO2009079994A2
公开(公告)日：2009-07-02
申请号：PCT/DE2008002091
申请日：2008-12-18
申请人： FERTIVA GMBH , RAHN RALF-THOMAS , BUEHLER GERD , WISSEMEIER ALEXANDER , WEIGELT WOLFGANG
发明人： RAHN RALF-THOMAS , BUEHLER GERD , WISSEMEIER ALEXANDER , WEIGELT WOLFGANG
IPC分类号： C05C9/00 , C05G3/00 , C05G5/00
CPC分类号： C05C9/005 , C05G3/0041 , C05G3/08 , Y02P60/218
摘要： A mixture for the treatment of urea-containing fertilizers comprises a) at least one (thio)phosphoric acid triamide of the general formula (I) R1R2N-P(X)(NH2)2 and/or (thio)phosphoric acid diamide of the general formula (II) R1O-P(X)(NH2)2 , X denoting oxygen or sulfur, R1 and R2 independently from each other being hydrogen, substituted or unsubstituted 2-nitrophenyl, C1-10-alkyl, C3-10-cycloaIkyl, C3-10-heterocycloalkyl, C6-10-aryl, C6-10-heteroaryl or diaminocarbonyl, where R1 and R2 together with the nitrogen atom connecting them can also form a 5 or 6-membered saturated or unsaturated heterocyclic group, which optionally may also comprise one or two additional heteroatoms selected from the group consisting of nitrogen, oxygen, and sulfur, as component A, and b) at least one compound comprising an amino group having a boiling point of more than 100ºC as component B.
摘要翻译：一种用于含尿素肥料的处理混合物含有：a）通式（I）中的至少一种（硫代）磷酰三胺R1R2N-P（X）（NH 2）2和/或（通式硫代）磷酸二酰胺（II）R 1 O-P（X ）（NH 2）2，这意味着X表示氧或硫，R 1和R 2独立表示氢，在每种情况下取代或未取代的2-硝基苯基，C 1-10 - 烷基，C 3-10 - 环烷基，C 3-10杂环烷基，C 6-10 芳基，C 6-10杂芳基，或Diaminocarbonyl，其特征在于，可以与氮原子形成连接它们也形成5-或6-元饱和或不饱和杂环基团，R1和R2，其还可以任选地包含选自下组的一个或两个另外的杂原子其可以选自氮，氧和硫，其包括含有作为组分a，b）至少一种氨基化合物与超过100℃的沸点作为组分B.基的

3. 发明专利

JP2000169408A ISOLATION OF ALPHA-ETHYNYLCARBINOL FROM LIQUID REACTION MIXTURE 失效
公开(公告)号：JP2000169408A
公开(公告)日：2000-06-20
申请号：JP34913799
申请日：1999-12-08
申请人： BASF AG
发明人： RAHN RALF-THOMAS , RUST HARALD , RUEHL THOMAS DR , HENKELMANN JOCHEM DR , STUTZ SUSANNE DR
IPC分类号： C07C29/82 , C07C29/16 , C07C29/80 , C07C33/025 , C07C33/042 , C07C33/048
摘要： PROBLEM TO BE SOLVED: To provide a continuous distillation method having excellent economic efficiency, guaranteeing safety of high level in the case of isolating α- ethynylcarbinol on an industrial scale. SOLUTION: α-Ethynylcarbinol is isolated from a liquid reaction mixture obtained by adding acetylene to an α,β-unsaturated carbonyl compound by a continuous distillation comprising introducing a feed stream to the central part of a distillation column, azeotropically distilling away most of water together with a solvent at the top of the column and taking out α- ethynylcarbinol of the objective product at a part below the feeding part to the column.

4. 发明专利

CA2329353C METHOD FOR PRODUCING MIXTURES OF 1,4-BUTANEDIOL, TETRAHYDROFURAN AND .GAMMA.-BUTYROLACTONE 未知
公开(公告)号：CA2329353C
公开(公告)日：2009-03-31
申请号：CA2329353
申请日：1999-04-21
申请人： BASF AG
发明人： PINKOS ROLF , RAHN RALF-THOMAS , KAIBEL GERD , FISCHER ROLF
IPC分类号： C07C29/17 , C07B61/00 , C07C29/136 , C07C29/149 , C07C29/88 , C07C31/20 , C07C51/16 , C07C67/08 , C07C69/60 , C07D307/08 , C07D307/33 , C07D315/00
摘要： The invention relates to a method for producing 1,4-butanediol, tetrahydrofuran and .gamma.-butyrolactone by oxidation of butane to a product flow containing maleic anhydride, absorption of maleic anhydride fro m the product flow with a high-boiling alcohol, which yields a liquid absorption product containing maleic acid half- and diesters and hi gh- boiling alcohol, post-esterification of the liquid absorption product and subsequent hydrogenation of the post-esterified product in the liquid phase. The high-boiling alcohol is a polyvalent alcohol with a boiling point at normal pressure of more than 233 .degree.C and the post-esterified product has an acid value of less than 30 mg KOH/g and a water content of less than 1 weight %.

5. 发明专利

CA2329477C METHOD FOR PRODUCING 1,4-BUTANEDIOL 未知
公开(公告)号：CA2329477C
公开(公告)日：2009-03-24
申请号：CA2329477
申请日：1999-04-16
申请人： BASF AG
发明人： RAHN RALF-THOMAS , PINKOS ROLF , KAIBEL GERD , FISCHER ROLF
IPC分类号： C07C29/17 , C07C29/149 , C07C31/20 , C07C51/16 , C07C67/03 , C07C67/08 , C07C69/60 , C07D307/08 , C07D307/32 , C07D307/33 , C07D315/00
摘要： The invention relates to a method for producing 1,4-butanediol and possibly .gamma.-butyrolactone and tetrahydrofurane by oxidation of butane or benzol into a product flow containing maleic anhydride, absorption of maleic anhydride from the product flow by means of an inert, high-boiling solvent in an absorption stage, which yields a liquid absorption product, and esterification of said liquid absorption product with a C1-C5 esterification alcohol in an esterification step, yielding an esterification product containing the corresponding diester and high-boiling inert solvent. This is followed by hydrogenation of the esterification product, which results in an hydrogenation product containing the products 1,4-butanediol and optionally .gamma.-butyrolactone and tetrahydrofurane as well as the esterification alcohol. The hydrogenation product is separated by distillation into the products and the esterification alcohol and the esterification alcohol is returned to the esterification zone. Prior to hydrogenation the esterification product i s separated by distillation under reduced pressured into the diester and the inert solvent, the inert solvent is returned to the absorption stage and the diester is hydrogenated in the liquid phase on a fixed-bed catalyst.

6. 发明专利

AT382614T 未知
公开(公告)号：AT382614T
公开(公告)日：2008-01-15
申请号：AT01951476
申请日：2001-05-03
申请人： BASF AG
发明人： KAIBEL GERD , WECK ALEXANDER , RAHN RALF-THOMAS
IPC分类号： C07D307/08 , B01D3/14 , B01D3/26 , C07C27/28 , C07C29/80 , C07C31/20 , C07D307/33
摘要： In a process for the continuous fractional distillation of mixtures comprising tetrahydrofuran, gamma-butyrolactone and/or 1,4-butanediol to give at least three fractions, the fractionation is carried out in an assembly of distillation columns comprising at least one dividing wall column or at least one assembly of thermally coupled conventional distillation columns.

7. 发明专利

DE10301703A1 Melamine production by urea decomposition is effected in main- and post- reactors containing catalysts of different acidity values 未知
公开(公告)号：DE10301703A1
公开(公告)日：2004-07-29
申请号：DE10301703
申请日：2003-01-17
申请人： BASF AG
发明人： KUHRS CHRISTIAN , DANZ ECKEHARD , STEINER WOLFGANG , RAHN RALF-THOMAS , GRASLER THOMAS , GEIER REINER , HARTH KLAUS , HOELZLE MARKUS
IPC分类号： C07D251/60 , B01J21/04 , B01J21/12
摘要： Production of melamine by urea decomposition using a solid catalyst takes place in a main reactor containing a catalyst of low Lewis acidity and a post-reactor containing a catalyst of the same or higher (especially higher) Lewis acidity.

8. 发明专利

BR0208959A 未知
公开(公告)号：BR0208959A
公开(公告)日：2004-04-27
申请号：BR0208959
申请日：2002-04-22
申请人： BASF AG
发明人： RAHN RALF-THOMAS , WECK ALEXANDER , KAIBEL GERD
IPC分类号： C07D307/60 , C07C51/215 , C07C51/44 , C07C51/573 , C07C57/145 , C07C57/15
摘要： In a process for purifying an organic solvent for the absorption of maleic anhydride from a gaseous mixture, in which the maleic anhydride is separated off from the solvent, a substream is taken from the solvent stream, this substream is distilled and returned to the solvent circuit, the proposed improvement comprises separating off a low-boiling fraction and a high-boiling fraction from the fraction consisting essentially of purified solvent and feeding the fraction consisting essentially of purified solvent back into the solvent stream.

9. 发明专利

ES2168852T3 未知
公开(公告)号：ES2168852T3
公开(公告)日：2002-06-16
申请号：ES99907539
申请日：1999-02-11
申请人： BASF AG
发明人： PINKOS ROLF , RAHN RALF-THOMAS
IPC分类号： C07C29/149 , C07C29/17 , C07C31/20 , C07C51/573 , C07C57/145 , C07C67/08 , C07C69/60 , C07D307/08 , C07D307/33
摘要： The invention relates to a process for the separation of maleic anhydride from the maleic anhydride-containing reactor offgases from the preparation of maleic anhydride by the oxidation of hydrocarbons, in which this gas stream is brought into contact with a high-boiling, inert absorbent for maleic anhydride and maleic anhydride is separated from the resultant liquid absorbate phase by vapor stripping, where the stripping agent used is an alcohol, and at least some of the maleic anhydride is reacted with the alcohol to give the ester.

10. 发明专利

DE19806038A1 未知
公开(公告)号：DE19806038A1
公开(公告)日：1999-08-19
申请号：DE19806038
申请日：1998-02-13
申请人： BASF AG
发明人： PINKOS ROLF , RAHN RALF-THOMAS
IPC分类号： C07C29/149 , C07C29/17 , C07C31/20 , C07C51/573 , C07C57/145 , C07C67/08 , C07C69/60 , C07D307/08 , C07D307/33 , C07D307/60 , C07D207/26 , B01D3/38
摘要： The invention relates to a method for separating maleic anhydride from the maleic anhydride-containing reactor waste gases resulting from maleic anhydride production by hydrocarbon oxidation. According to said method the gas stream is placed into contact with a high-boiling inert absorption agent for maleic anhydride and maleic anhydride is separated from the resulting liquid absorbate phase by steam stripping. An alcohol is used as desorption agent and maleic anhydride at least partly reacts with the alcohol to yield an ester.

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