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公开(公告)号：JP2001151765A
公开(公告)日：2001-06-05
申请号：JP2000342489
申请日：2000-11-09
Applicant: BASF AG
Inventor： BURST WOLFRAM , KAIBEL GERD DR , BOETTCHER ANDREAS , KESSLER VERONIQUE , KUNTZE THOMAS
IPC: B01D3/32 , C07B61/00 , C07D307/62
Abstract: PROBLEM TO BE SOLVED: To provide a method for continuously producing an alkali metal salt of L-ascorbic acid at an inexpensive cost of apparatus without causing reduction in yield. SOLUTION: In the case of producing the alkali metal salt of L-ascorbic acid by a method including a process (a) for esterifying 2-keto-L-gluconic acid or diacetone-2-keto-L-gluconic acid with a 1-10C alcohol in the presence of an acid catalyst and a process (b) for rearranging a formed 2-keto-L-gluconic acid 1-10C alkyl ester in the presence of a 1-10C alkali metal alcoholate, the treatment process (a) and the treatment process (b) are continuously carried out.
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公开(公告)号：JP2001348222A
公开(公告)日：2001-12-18
申请号：JP2001019340
申请日：2001-01-29
Applicant: BASF AG
Inventor： WOSTBROCK KARL-HEINZ , KAIBEL GERD DR , TRAGUT CHRISTIAN , ANKEN GABRIELE
Abstract: PROBLEM TO BE SOLVED: To provide a method of obtaining high purity ammonia practically and inexpensively by the distillation of unpurified ammonia. SOLUTION: The method is performed by using a distillation apparatus composed of either a dividing wall column or a thermally combination coupled distillation column and fractionating the unpurified ammonia with a continuous operation to obtain a fraction of low boiling point components, a fraction of high boiling point components and a fraction of a purified component showing intermediate boiling point, the fraction of the low boiling point components is discharged from the top of the distillation column, the fraction of the pure component showing the intermediate boiling point is collected from a column side discharge part and the high purity ammonia is obtained by the method capable of controlling the quantity of the gases in the distillation column so that operation pressure is 2-30 bar and the F-factor does not exceed 2.0 Pa0.5.
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公开(公告)号：JP2000159721A
公开(公告)日：2000-06-13
申请号：JP33329199
申请日：1999-11-24
Applicant: BASF AG
Inventor： OOST CARSTEN , STROEZEL MANFRED , ETZRODT HEINZ , DIETMAR WELLER , KAIBEL GERD DR , HAGEN IEEDIKKE
Abstract: PROBLEM TO BE SOLVED: To obtain an unsaturated ketone in a high yield by subjecting a specific α,β-unsaturated alcohol and an alkyl acetoacetate to a Carol reaction in the presence of an organic aluminum compound in the absence of a solvent at a specific reaction temperature. SOLUTION: This method for producing an unsaturated ketone of formula III (the dotted line is an additional C-C bond; R1 is a 1-2C alkyl; R2 is a 1-4C alkyl) comprises reacting (A) an α,β-unsaturated alcohol of formula I with (B) an alkyl acetoacetate of formula II in the presence of (C) an organic aluminum compound in a reactor system having a rectifier connected thereto, while continuously removing an alcohol of the formula: R3OH released from the alkyl acetoacetate during the release reaction and during the Carol reaction. In the reaction, the component A has a boiling point of
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4.发明专利
公开(公告)号：JP2003220327A
公开(公告)日：2003-08-05
申请号：JP2002353203
申请日：2002-12-05
Applicant: BASF AG
Inventor： KAIBEL GERD DR , MILLER CHRISTIAN , JANSEN HELMUT , KAIBEL BJOERN
Abstract: PROBLEM TO BE SOLVED: To provide a reactor in which a hot spot is difficult to occur in a catalyst packed inside the reactor, having little pressure drop when fluid reaction mixtures pass through the catalyst, and in which the heterogeneous catalyst is packed. SOLUTION: A fixed-bed reactor is described for carrying out reactions of fluid reaction mixtures in the presence of a particulate heterogeneous catalyst having a structured packing which forms interstices in the reactor interior, in which the quotient of the hydraulic diameter for the fluid flow through the structured packing and the equivalent diameter of the catalyst particles is in the range from 2 to 20, preferably in the range from 5 to 10, to such an extent that the catalyst particles are introduced into the interstices, loosely distributed and discharged under the action of gravity. COPYRIGHT: (C)2003,JPO
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5.发明专利
公开(公告)号：JP2000334201A
公开(公告)日：2000-12-05
申请号：JP2000090170
申请日：2000-03-29
Applicant: BASF AG
Inventor： TRAGUT CHRISTIAN , KAIBEL GERD DR
Abstract: PROBLEM TO BE SOLVED: To prevent a substance having a comparatively high melting point from being deposited in a cooler in a distillation apparatus. SOLUTION: This distillation apparatus is used for continuously separating a substance 2 (having a comparatively high melting point) from a starting material mixture which comprises the substance 2 and a low boiling point component 1 (having a low melting point and a higher boiling point than that of the substance 2). The cooler is provided at the top of a distillation column of the distillation apparatus above a discharging port of the substance 2. The temperature of a contact surface part where vapor from the distillation column is contacted with the cooler is controlled to be lower than the melting point of the substance 2. For example the substance 2 is one of various isomers of dimethylhexanediol and the component 1 is a low boiling point alcohol.
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Patent Agency Ranking
公开(公告)号：JP2000086566A
公开(公告)日：2000-03-28
申请号：JP25309699
申请日：1999-09-07
Applicant: BASF AG
Inventor： OOST CARSTEN , STROEZEL MANFRED , ETZRODT HEINZ , DIETMAR WELLER , BOCKSTIEGEL BERNHARD DR , REIMER KLAUS , KAIBEL GERD DR , JAEDICKE HAGEN DR
IPC: B01J31/14 , B01D3/00 , B01D3/14 , B01D3/32 , B01J10/00 , B01J19/24 , C07B61/00 , C07C45/67 , C07C45/68 , C07C45/82 , C07C49/203 , C07C67/54 , C07C69/72
Abstract: PROBLEM TO BE SOLVED: To continuously produce an unsaturated ketone in high yield for a short time in a single reactor without using a medium-boiling material by reacting an unsaturated alcohol with an alkyl acetoacetate in the presence of an organic aluminum compound. SOLUTION: The purpose of this invention is achieved by reacting an unsaturated alcohol of formula I [R1 is a 1-4C alkyl; R2 is a (methoxy-substituted) (1-37C) aliphatic hydrocarbon group or the like] with an alkyl acetoacetate of formula II (R3 is a 1-5C alkyl) on the internal structure of a rectifier to form an acetoacetate of an unsaturated alcohol, by separating an alcohol of the formula R3-OH from the overhead flow of the rectifier, and (A) by making the resultant acetoacetate of an alcohol of formula I rearrange into an unsaturated ketone of formula III in the presence of an organic aluminum compound (pref. an aluminum trialkoxide) in the lower part of the rectifier and/or (B) by feeding carbon dioxide formed each time at the bottom of the rectifier to the overhead flow through the rectifier and by separating an unsaturated ketone of formula III from the rectifier through the bottom.
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公开(公告)号：JPH1033901A
公开(公告)日：1998-02-10
申请号：JP11255597
申请日：1997-04-30
Applicant: BASF AG
Inventor： KAIBEL GERD DR , STROEZEL MANFRED , RHEUDE UDO DR
Abstract: PROBLEM TO BE SOLVED: To simplify reattachment of an existing partition wall column and assembly of a new partition wall column by detachably fitting a partition wall to the inside of the partition wall column. SOLUTION: Partition walls 3 are detachably fitted to the inside of a partition wall column. In other words, the partition walls 3 are fitted on one side of the respective packed beds 4 as a sheet of 0.1-3mm desirably about 1-2mm thickness and formed into a structural member integrated with the packed beds 4. In this case, the integrated partition wall 3 is formed longer than the packed bed 4 combined therewith in the edges of the head and the bottom by about 1-10mm and has an additional sheet strips 5 in the edge of the bottom. The sheet strip 5 has about 10-20mm width and about 0.1-2mm thickness. In the case of combining an individual packed bed 4, a roof type overlapped part is formed and thereby liquid is inhibited from infiltrating. The overlapped part is sealed sufficiently and strongly for infiltration of vapor.
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公开(公告)号：JPH105575A
公开(公告)日：1998-01-13
申请号：JP7104797
申请日：1997-03-25
Applicant: BASF AG
Inventor： KAIBEL GERD DR , BROECKER FRANZ JOSEF DR , STROEZEL MANFRED
IPC: B01F5/06 , B01J8/00 , B01J8/06 , B01J8/18 , B01J8/20 , B01J8/22 , B01J8/34 , B01J19/24 , C07C45/62
Abstract: PROBLEM TO BE SOLVED: To enable catalytic suspension reaction having high blank yield by supplying a liquid phase containing suspension of at least one kind of catalyst and, if necessary, a gas phase through a device in a reaction chamber having orifices or channels having a specified hydraulic diameter when the catalytic reaction is performed. SOLUTION: A bubble tower reaction chamber 1 equipped with orifices and channels having 0.5 to 20mm hydraulic diameter, advantageously 1 to 10mm, and more preferably 1 to 3mm is used. In this chamber, a liquid reaction component containing a suspended catalyst is introduced through a filling tube 3, while a gas reaction component is supplied through a connecting tube 4 to a mixing nozzle 5 to mix the circulated suspension liquid and then supplied to the bottom of the reaction chamber 1. After the suspension liquid with the gas is supplied through a tube 6 to a separator 7, the gas is sent to a ventilation tube 10 through a cooler 8 for the discharged gas and a pressure holding device 9. The suspension liquid is introduced from the separator 7 through a tube 11 to a pump 12, heat exchanger 13, mixing nozzle 5, and reaction chamber 1. After the reaction is completed, the liquid is discharged through a discharging tube 14.
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公开(公告)号：JP2003206248A
公开(公告)日：2003-07-22
申请号：JP2002353047
申请日：2002-12-04
Applicant: BASF AG
Inventor： GOEBBEL HANS-GEORG , GERLACH TILL , FUNKE FRANK DR , EBEL KLAUS , UNVERRICHT SIGNE , KAIBEL GERD DR
IPC: C07B61/00 , C07C29/141 , C07C33/03
Abstract: PROBLEM TO BE SOLVED: To provide a continuous method of producing an unsaturated alcohol by selectively hydrogenating an olefinically unsaturated carbonyl compound, particularly citral is selectively hydrogenated to continuously produce a mixture of geraniol and nerol. SOLUTION: An olefinic unsaturated carbonyl compound is selectively hydrogenated in the reactor including the liquid phase that holds at least one kind of catalyst suspension and may include the gas phase additionally to produce unsaturated alcohols. The reactor used in this process has an opening or a flow channel with the hydraulic diameter of 0.5-20 mm. COPYRIGHT: (C)2003,JPO
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公开(公告)号：JP2001181224A
公开(公告)日：2001-07-03
申请号：JP2000385366
申请日：2000-12-19
Applicant: BASF AG
Inventor： REIMER KLAUS , KAIBEL GERD DR , KAMMEL ULRICH , BROECKER FRANZ JOSEF DR , ANSMANN ANDREAS , ETZRODT HEINZ , STROEZEL MANFRED , HAAKE MATHIAS , LAUPICHLER LOTHAR , BOCKSTIEGEL BERNHARD DR
IPC: B01J23/44 , B01J23/50 , B01J35/04 , B01J35/06 , B01J37/02 , B01J37/08 , C07B61/00 , C07C5/09 , C07C29/17 , C07C33/02 , C07C33/03
Abstract: PROBLEM TO BE SOLVED: To provide a method for producing an alkene by partially hydrogenating a 10-30C alkyne. SOLUTION: A palladium compound or, if needed, other metal ion is applied to a heat treated and cooled support material by impregnating a solution containing a palladium salt or, if needed, other metal ion and subsequent drying and 10-2,000 ppm of carbon monoxide (CO) is added or a corresponding amount of CO is generated by a slight decomposition of a compound capable of releasing CO under the reaction condition and added to the reaction mixture.
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