公开(公告)号：DE19740252A1

公开(公告)日：1999-03-18

申请号：DE19740252

申请日：1997-09-12

Applicant: BASF AG

Inventor： ECK BERND ,  MACHHAMMER OTTO DR ,  PROLL THEO DR ,  SCHLIEPHAKE VOLKER DR ,  THIEL JOACHIM DR ,  BROELLOS KLAUS DR

IPC: C07C51/43 ,  C07C51/44 ,  C07C57/07 ,  C07C57/05

Abstract: Acrylic and methacrylic acid can be synthesized by catalytic gas phase oxidation of 3-4C alkanes, alkenes, alcohols and/or aldehydes. This process for the production of acrylic acid or methacrylic acid comprises: (A) production of a gaseous product mixture comprising the reaction mixture arising from the (B) condensation of the gaseous product mixture (C) crystallization of acrylic acid or methacrylic acid from the resulting solution. (D) separation of the crystals from the mother liquor and (E) recycling of at least a portion of the mother liquor from (D) to (B).

公开(公告)号：DE58900514D1

公开(公告)日：1992-01-16

申请号：DE58900514

申请日：1989-01-28

Applicant: BASF AG

Inventor： MUELLER HERBERT DR ,  MESCH WALTER DR ,  BROELLOS KLAUS DR

IPC: C07C29/136 ,  C07C29/149 ,  C07C31/22

公开(公告)号：DE3812403A1

公开(公告)日：1989-10-26

申请号：DE3812403

申请日：1988-04-14

Applicant: BASF AG

Inventor： SAMEL ULF-RAINER DR ,  BIEG WALTER ,  BROELLOS KLAUS DR ,  IRNICH RUDOLF DR

IPC: C07C51/48

公开(公告)号：DE4202564A1

公开(公告)日：1993-08-05

申请号：DE4202564

申请日：1992-01-30

Applicant: BASF AG

Inventor： KRUG JOSEPH DR ,  PALM CHRISTOF DR ,  BROELLOS KLAUS DR ,  WOLF DIETER DR

IPC: B01D61/36 ,  C07D307/08

Abstract: Process for separating a mixture of tetrahydrofuran and water into its components, the separation being carried out by means of pervaporation.

公开(公告)号：DE3461367D1

公开(公告)日：1987-01-08

申请号：DE3461367

申请日：1984-05-18

Applicant: BASF AG

Inventor： LINDNER ALFRED DR ,  BROELLOS KLAUS DR ,  SANDROCK GERHARD DR ,  VOLKAMER KLAUS DR ,  HEFNER WERNER DR

IPC: C07C1/00 ,  C07C7/17 ,  C07C9/10 ,  C07C11/08 ,  C07C67/00

Abstract: A C4-hydrocarbon mixture which essentially contains n-butenes and butanes is separated by a process in which the mixture is reacted with a carboxylic acid in the presence of an acidic catalyst to form a butyl carboxylate, the reaction mixture obtained from the esterification zone is distilled to give, as the top product, a fraction containing the butanes, and, as the bottom product, a fraction containing the resulting butyl carboxylate, the butyl carboxylate is decomposed at elevated temperatures to give the carboxylic acid and n-butenes, and the mixture of n-butenes and carboxylic acid is then distilled, the n-butenes being obtained as the top product, and the carboxylic acid as the bottom product.

公开(公告)号：AT23706T

公开(公告)日：1986-12-15

申请号：AT84105654

申请日：1984-05-18

Applicant: BASF AG

Inventor： LINDNER ALFRED DR ,  BROELLOS KLAUS DR ,  SANDROCK GERHARD DR ,  VOLKAMER KLAUS DR ,  HEFNER WERNER DR

IPC: C07C1/00 ,  C07C7/17 ,  C07C9/10 ,  C07C11/08 ,  C07C67/00

公开(公告)号：DE19740253A1

公开(公告)日：1999-03-18

申请号：DE19740253

申请日：1997-09-12

Applicant: BASF AG

Inventor： ECK BERND ,  MACHHAMMER OTTO DR ,  PROLL THEO DR ,  SCHLIEPHAKE VOLKER DR ,  THIEL JOACHIM DR ,  BROELLOS KLAUS DR

IPC: B01D5/00 ,  C07C51/44 ,  C07C57/07 ,  B01D3/00 ,  C07C57/05

Abstract: Hot gas mixtures with at least two condensable components and a high content of non-condensable component(s) are fractionated by passing through a column containing devices with a separating action, and condensing out the condensable components by cooling.

公开(公告)号：DE3361868D1

公开(公告)日：1986-02-27

申请号：DE3361868

申请日：1983-10-05

Applicant: BASF AG

Inventor： BROELLOS KLAUS DR ,  LINDNER ALFRED DR ,  IRNICH RUDOLF DR ,  HORNBERGER PAUL DR

IPC: B01J31/40 ,  C07C51/42 ,  C07C51/44 ,  C07C53/122

公开(公告)号：DE3318858A1

公开(公告)日：1984-11-29

申请号：DE3318858

申请日：1983-05-25

Applicant: BASF AG

Inventor： LINDNER ALFRED DR ,  BROELLOS KLAUS DR ,  SANDROCK GERHARD DR ,  VOLKAMER KLAUS DR ,  HEFNER WERNER DR

IPC: C07C1/00 ,  C07C7/17 ,  C07C9/10 ,  C07C11/08 ,  C07C67/00

Abstract: A C4-hydrocarbon mixture which essentially contains n-butenes and butanes is separated by a process in which the mixture is reacted with a carboxylic acid in the presence of an acidic catalyst to form a butyl carboxylate, the reaction mixture obtained from the esterification zone is distilled to give, as the top product, a fraction containing the butanes, and, as the bottom product, a fraction containing the resulting butyl carboxylate, the butyl carboxylate is decomposed at elevated temperatures to give the carboxylic acid and n-butenes, and the mixture of n-butenes and carboxylic acid is then distilled, the n-butenes being obtained as the top product, and the carboxylic acid as the bottom product.

公开(公告)号：DE3260874D1

公开(公告)日：1984-11-08

申请号：DE3260874

申请日：1982-05-05

Applicant: BASF AG

Inventor： BROELLOS KLAUS DR ,  VOLKAMER KLAUS DR ,  LINDNER ALFRED DR

IPC: C10G7/08 ,  B01D3/40 ,  C07C1/00 ,  C07C7/08 ,  C07C11/12 ,  C07C67/00 ,  C10G21/28