公开(公告)号：DE10049338A1

公开(公告)日：2002-04-11

申请号：DE10049338

申请日：2000-10-05

Applicant: BASF AG

Inventor： KAIBEL GERD ,  DOMSCHKE THOMAS ,  HAAKE MATHIAS ,  KELLER HARALD ,  SCHWAB EKKEHARD ,  OOST CARSTEN

IPC: B01J33/00 ,  B01J35/02 ,  B01J37/02 ,  C07B61/00 ,  C07C29/17 ,  C07C33/025 ,  C07C33/035 ,  B01J35/10 ,  C07B35/02 ,  C07B31/00

Abstract: Micro-structured, self-cleaning, catalytically-active surface with peaks and hollows contains a catalytically-active material in the hollows. Independent claims are also included forthe following: (a) formed catalyst bodies with an active surface; (b) a method for the production of catalyst surfaces and formed catalysts as above by powder-coating the surface of a support with particles in the size range 0.05-200 microns and then coating with a catalytically-active material; (c) an alternative method comprises: (i) optionally coating the support with a metal primer by layer deposition; (ii) applying a first layer of metal with embedded particles (0.05-200 microns) to the surface of the support or the primer layer by deposition from a solution containing these dispersed particles and (iii) coating with a catalytically-active second layer; and (d) micro-structured, self-cleaning, catalytically-active surfaces and catalysts obtained by these methods.

公开(公告)号：DE10047162A1

公开(公告)日：2002-04-11

申请号：DE10047162

申请日：2000-09-22

Applicant: BASF AG

Inventor： OOST CARSTEN ,  DOMSCHKE THOMAS ,  KAIBEL GERD

IPC: B01D9/00 ,  B08B17/06 ,  B29C59/00

Abstract: Crystallisation or precipitation apparatus with reduced deposition of crystals on its surfaces has a microstructure of ribs and grooves on the surfaces which contact crystallisate, solutions or mother liquors, so that they are self-cleaning. An Independent claim is included for a method for crystallisation or precipitation from solutions using the apparatus.

公开(公告)号：AU8989701A

公开(公告)日：2002-04-02

申请号：AU8989701

申请日：2001-09-19

Applicant: BASF AG

Inventor： KAIBEL GERD ,  OOST CARSTEN ,  STROEZEL MANFRED ,  MEYER GERALD ,  TRUBENBACH PETER ,  SARTOR KARL-HEINZ ,  HENERS JURGEN

IPC: B01D3/14 ,  B01D3/32 ,  B01D3/42 ,  C07B63/00 ,  C10G7/00 ,  C10G7/02 ,  C10G7/12

Abstract: A process is proposed for the separation of C 5+ cuts by distillation into a low-boiler (A), a medium-boiler (B) and a high-boiler fraction (C) in one or more dividing-wall columns (TK), in which a dividing wall (T) is arranged in the longitudinal direction of the column with formation of an upper, common column region ( 1 ), a lower, common column region ( 6 ), a feed part ( 2, 4 ) with rectifying section ( 2 ) and stripping section ( 4 ), and a withdrawal part ( 3, 5 ) with rectifying section ( 5 ) and stripping section ( 3 ), with feed of the C 5+ cut (A, B, C) into the central region of the feed part ( 2, 4 ), discharge of the high-boiler fraction (C) from the bottom of the column, discharge of the low-boiler fraction (A) via the top of the column, and discharge of the medium-boiler fraction (B) from the central region of the withdrawal part ( 3, 5 ), wherein the dividing ratio of the liquid reflux at the upper end of the dividing wall (T) is set in such a way that the proportion of high-boiling key components in the liquid reflux over the stripping section ( 3 ) of the withdrawal part at the upper end of the dividing wall (T) is from 10 to 80%, preferably from 30 to 50%, of the limit value allowed in the medium-boiler fraction (B), and wherein the heating power in the evaporator at the bottom of the dividing-wall column (TK) is set in such a way that the concentration of the low-boiling key components in the liquid at the lower end of the dividing wall (T) is from 10 to 80%, preferably from 30 to 50%, of the limit value allowed in the medium-boiler fraction (B).

公开(公告)号：DE19852691A1

公开(公告)日：2000-05-18

申请号：DE19852691

申请日：1998-11-16

Applicant: BASF AG

Inventor： OOST CARSTEN ,  STROEZEL MANFRED ,  ETZRODT HEINZ ,  WELLER DIETMAR ,  RHEUDE UDO ,  KAIBEL GERD ,  KRUG THOMAS ,  SPISKE LUISE ,  JAEDICKE HAGEN

IPC: B01J31/14 ,  C07B61/00 ,  C07C45/67 ,  C07C45/74 ,  C07C49/203

Abstract: Preparation of unsaturated ketones by reaction of the corresponding alpha , beta -unsaturated alcohol with an alkyl acetoacetate compound in the presence an organo-aluminum catalyst at constant temperature, with separation and continuous removal of CO2 and alcohol formed. Preparation of unsaturated ketones of formula (I) by reaction of the corresponding alpha , beta -unsaturated alcohol of formula (II) with an alkyl acetoacetate compound of formula (III) in the presence of 0.1-5 mole% (based on (III)) of an organo-aluminum catalyst with separation and continuous distillative removal of CO2 and alcohol of formula R3OH formed during reaction, in a reactor containing a fractionation column, where: (A) (II) is added to the reaction mixture together with the organic catalyst without additional solvent and (III) is then added to this mixture; (B) the reaction temperature is kept constant between 175-220 degrees C; (C) the content of (III) is kept at a constant level between 0.1-10 wt.% during the reaction. R1, R3 = 1-4C alkyl; R2 = 4-30C aliphatic, cycloaliphatic or cycloaliphatic-aliphatic; a, b = optional additional bonds.

公开(公告)号：DE19815810A1

公开(公告)日：1999-10-14

申请号：DE19815810

申请日：1998-04-08

Applicant: BASF AG

Inventor： OOST CARSTEN ,  STROEZEL MANFRED ,  ETZRODT HEINZ ,  BOCKSTIEGEL BERNHARD ,  JAEDICKE HAGEN

IPC: B01J31/02 ,  B01J31/14 ,  C07C45/67 ,  C07F5/06 ,  C07C49/20 ,  C07C29/68 ,  C07C31/32 ,  C07C45/68

Abstract: Preparation of psi , delta -unsaturated ketones (I) by modified Carroll reaction is catalysed by a stable liquid aluminum acetoacetate compound or mixture of such compounds. Some such catalyst mixtures are new. Preparation of psi , delta -unsaturated ketones of formula (I) involves modified Carroll reaction of an allyl alcohol of formula (II) with diketene or an alkyl acetoacetate of formula (III) in presence of an aluminum catalyst. R1 = H or 1-20C, saturated or unsaturated, branched hydrocarbyl; R2 = 1-5C alkyl. The novelty is that the catalyst consists of an aluminum compound (or aluminum compound mixture) which is a stable liquid at room temperature and contains at least one alkyl acetoacetate-forming group and 1 or 2 alkoxy groups or exclusively alkyl acetoacetate forming groups which are esterified sec. butanol or isobutanol or with at least two different alkanols. Independent claims are included for: (1) new mixtures of aluminum tris-acetoacetates of formula (V) which are liquid at room temperature; and (2) the preparation of mixtures as in (1). R3 = 1-5C alkyl, preferably Me or Et; R4 = 3-10C alkyl, preferably CHMe2, CH(Me)Et, CMe3 or CH(Me)-C3H7; R5 = 1-10C alkyl, preferably Me, Et, CHMe2, CH(Me)Et or CH(Me)-C3H7; provided that R3-R5 are not all the same. A further Independent claim relates to the continuous preparation of compounds (V) (or their mixtures), having the narrower proviso that R3-R5 can only be the same if they are -CH(Me)Et or -CH2CHMe2, which are liquid at room temperature. The process involves continuously reacting 1 mole of aluminum alcoholate of formula (VI) with 3-10 moles of (III), or with at least 3 moles of a mixture of 2 or 3 different compounds (III), optionally dissolved in an inert solvent. Reaction is at 100-250 (preferably 150-200) deg C and 1-100 (preferably 1-10) bars with a dwell time of 5-120 (preferably 15-45) minutes, the pressure and temperature being such that no gas phase is formed in the reaction vessel. R6 = 2-10C alkyl, preferably -CH2CHMe2, -CH(Me)Et or -CH(Me)C3H7; provided that R2 and R6 can only be the same if they are -CH(Me)Et or -CH2CHMe2.