公开(公告)号：AU2003250133A1

公开(公告)日：2004-02-16

申请号：AU2003250133

申请日：2003-07-22

Applicant: BASF AG

Inventor： HEIDA BERND ,  ADRIAN TILL ,  HILL THOMAS ,  KINDLER KLAUS

IPC: B01D3/40 ,  C07C5/22 ,  C07C7/08

Abstract: In a continuous process for fractionating a C4 fraction (C4) by extractive distillation using a selective solvent (LM) in an extractive distillation column (EDK), it is proposed that a dividing wall (TW) is installed in the longitudinal direction in the extractive distillation column (EDK) to form a first region (A), a second region (B) and a lower combined column region (C) and a top stream (C4H10) comprising the butanes is taken off from the first region (A), a top stream (C4H8) comprising the butenes is taken off from the second region (B) and a stream (C4H6) comprising the hydrocarbons from the C4 fraction which are more soluble in the selective solvent (LM) than are the butanes and the butenes is taken off from the lower combined column region (C).

公开(公告)号：DE19631662A1

公开(公告)日：1998-02-12

申请号：DE19631662

申请日：1996-08-05

Applicant: BASF AG

Inventor： HEIDA BERND ,  THIESSEN FRITZ DR ,  HAMMON ULRICH DR

IPC: B01D17/025 ,  B01D17/02 ,  C07C51/25 ,  C07C57/04 ,  C07C57/055 ,  C07C57/07 ,  C07C57/05 ,  C07D307/32 ,  C07B63/00

Abstract: In a separator (11), designed to separate mixtures composed of liquids of various densities, the inflow (12) of the liquid mixture is so arranged and so designed that the inflowing liquid mixture hits an inner wall(16), located opposite the separator outflows, at an angle alpha of 0 DEG - 45 DEG relative to the normal to the container wall. Such a separator can be used in the manufacturing process for acrylic acid through catalytic vapour-phase oxidation of propene.

公开(公告)号：DE19631645A1

公开(公告)日：1998-02-12

申请号：DE19631645

申请日：1996-08-05

Applicant: BASF AG

Inventor： HEIDA BERND ,  THIESSEN FRITZ DR ,  HAMMON ULRICH DR ,  DAMS ALBRECHT DR

IPC: C07C51/25 ,  C07C51/48 ,  C07C57/04 ,  C07C57/05 ,  C07C57/07

Abstract: In the production process for acrylic acid through catalytic vapour-phase oxidation of propene, acrylic acid is separated from the vapour-phase oxidation reaction mixture by means of an absorbing agent containing diphenyl, diphenyl ether or dimethyl phthalate and is also extracted from the vapour-phase oxidation acidic water by means of a solvent containing diphenyl, diphenyl ether or dimethyl phthalate.

公开(公告)号：CA2261631A1

公开(公告)日：1998-02-12

申请号：CA2261631

申请日：1997-08-04

Applicant: BASF AG

Inventor： HAMMON ULRICH ,  THIESSEN FRITZ ,  HEIDA BERND

IPC: B01D53/14 ,  B01F27/91 ,  C07B63/00 ,  C07C51/25 ,  C07C57/04 ,  C07C57/05 ,  C07C57/07 ,  B01F7/18

Abstract: Mixing device for the blending of at least two liquid phases, containing a housing (1) with an inside diameter D, in which at least one agitator (2) is equipped with two to five segment shaped blades presenting a radius of curvature K, in which the circular area inside the housing (1), covered by the rotating agitators, has a diameter E, and in which K ranges from 0.10*D to 0.30*D, preferably from 0.125*D to 0.25*D, and E ranges from 0.35*D to 0.65*D, preferably from 0.45*D to 0.55*D.

公开(公告)号：ID17005A

公开(公告)日：1997-11-27

申请号：ID972712

申请日：1997-08-05

Applicant: BASF AG

Inventor： HEIDA BERND ,  THIESSEN FRITZ ,  HAMMON ULRICH

IPC: B01F27/91 ,  B01D53/14 ,  C07B63/00 ,  C07C51/25 ,  C07C57/04 ,  C07C57/05 ,  C07C57/07

Abstract: Mixing device for the blending of at least two liquid phases, containing a housing (1) with an inside diameter D, in which at least one agitator (2) is equipped with two to five segment shaped blades presenting a radius of curvature K, in which the circular area inside the housing (1), covered by the rotating agitators, has a diameter E, and in which K ranges from 0.10*D to 0.30*D, preferably from 0.125*D to 0.25*D, and E ranges from 0.35*D to 0.65*D, preferably from 0.45*D to 0.55*D.

公开(公告)号：DE3583660D1

公开(公告)日：1991-09-05

申请号：DE3583660

申请日：1985-12-06

Applicant: BASF AG

Inventor： BIEG WALTER ,  HEIDA BERND

IPC: C12P1/00 ,  C12P7/26 ,  C12P7/40 ,  C12P17/08

Abstract: A process for isolating useful organic prods. from aq. fermentation solns. contg. solid biomass by extn. with organic solvents, comprises passing the aq. fermentation soln. as disperse phase through a column with hydrophobic inserts. The column may be e.g. a spray column, pulsed and unpulsed filled columns with ordered or random filling, sieve plate columns and columns with rotating inserts. The inserts have a hydrophobic surface e.g. of PTFE, 'Halar' (RTM), 'Ultramid' (RTM), polypropylene, etc. The column has a sepn. zone with a residence time of at least 15 mins to minimise entrainment of solvent in the aq. phase.

公开(公告)号：AT65799T

公开(公告)日：1991-08-15

申请号：AT85115550

申请日：1985-12-06

Applicant: BASF AG

Inventor： BIEG WALTER ,  HEIDA BERND

IPC: C12P1/00 ,  C12P7/26 ,  C12P7/40 ,  C12P17/08

公开(公告)号：FR2540105A1

公开(公告)日：1984-08-03

申请号：FR8400782

申请日：1984-01-19

Applicant: BASF AG

Inventor： WICKENHAEUSER GERHARD ,  HEIDA BERND ,  GRAF FRITZ ,  HUPFER LEOPOLD

IPC: C07C47/127 ,  C07C45/00 ,  C07C45/80 ,  C07C45/85 ,  C07C67/00

Abstract: Aqueous solutions of glyoxal which contain acids are purified by treatment with a solution which contains from 20 to 60% by weight of a tertiary amine and from 80 to 40% by weight of an alcohol which is not infinitely miscible with water, the treatment being carried out by mixing the two solutions during a residence time of less than 5 minutes.

公开(公告)号：DE3402733A1

公开(公告)日：1984-08-02

申请号：DE3402733

申请日：1984-01-27

Applicant: BASF AG

Inventor： WICKENHAEUSER GERHARD DR ,  HEIDA BERND ,  GRAF FRITZ DR ,  HUPFER LEOPOLD DR

IPC: C07C45/80 ,  C07C47/127 ,  C07C45/78

Abstract: Process for the purification of aqueous glyoxal solutions which contain acids, by treatment with a solution which contains 20 to 60% by weight of a tertiary amine and 80 to 40% by weight of an alcohol which is not miscible with water at any desired ratio, the treatment being carried out by mixing the two solutions at residence times of less than 5 minutes.

公开(公告)号：CA2526011C

公开(公告)日：2012-07-24

申请号：CA2526011

申请日：2004-05-19

Applicant: BASF AG

Inventor： HEIDA BERND

IPC: C07C7/08 ,  C07C11/167

Abstract: The invention relates to a method for obtaining crude 1,3-butadiene from a C4 fraction, by means of extractive distillation, using a selective solvent in a partition column (TK) in which a partition (T) is arranged in the longitudinal direction of the column, forming a first partial region (A), a second partial region (B) and a lower common column region (C), an extractive wash column (K) being arranged upstream of said partition column. The operation of the partition column (TK) is adjusted by regulating the energy input thereinto (TK) using a bottom evaporator (V) and by means of the arrangement of the number of theoretical separating stages in the lower common column region (C), in such a way that a bottom flow (17) consisting of a purified solvent can be obtained from the partition column (TK).