公开(公告)号：DE59303406D1

公开(公告)日：1996-09-19

申请号：DE59303406

申请日：1993-05-13

Applicant: BASF AG

Inventor： MUELLER ULRICH DR ,  HOELDERICH WOLFGANG PROF DR ,  SCHAEFER HANS DIETER ,  EIDEN ULRICH DR ,  WOESSNER NORBERT

IPC: B01J20/18 ,  B01J29/06 ,  B01J29/40 ,  B01J29/82 ,  B01J37/02 ,  C10G25/03

Abstract: Process for fixing large zeolitic and zeolite-analogue molecular sieve crystals from 3 to 500 mu m on moulded articles (mouldings) by using an adhesion promoter or by softening the moulded article.

公开(公告)号：DE4309731A1

公开(公告)日：1994-09-29

申请号：DE4309731

申请日：1993-03-25

Applicant: BASF AG

Inventor： ZEHNER PETER DR ,  BITTINS KLAUS DR ,  HAARDE WILHELM DR ,  EIDEN ULRICH DR ,  WOLFF DIETRICH DR ,  HERR MANFRED ,  HUPFER LEOPOLD DR

IPC: C07B61/00 ,  C07C67/36 ,  C07C69/06 ,  B01J31/02

Abstract: Methyl formate is prepared by reaction of carbon monoxide and methanol at elevated pressure and elevated temperature in the presence of an alkali metal methoxide by A) mixing the starting substances in a mixing zone, partially allowing them to react, saturating the reaction solution with CO and B) carrying the reaction to completion in one or more subsequent reaction zones without addition of further starting compounds.

公开(公告)号：DE4216846A1

公开(公告)日：1993-11-25

申请号：DE4216846

申请日：1992-05-21

Applicant: BASF AG

Inventor： MUELLER ULRICH DR ,  HOELDERICH WOLFGANG DR ,  SCHAEFER HANS DIETER ,  EIDEN ULRICH DR ,  WOESSNER NORBERT

IPC: B01J20/18 ,  B01J29/06 ,  B01J29/40 ,  B01J29/82 ,  B01J37/02 ,  C10G25/03 ,  B01J29/04 ,  B01J29/28 ,  B01J29/08 ,  B01J20/32 ,  B01J20/10 ,  C01B33/34

Abstract: Process for fixing large zeolitic and zeolite-analogue molecular sieve crystals from 3 to 500 mu m on moulded articles (mouldings) by using an adhesion promoter or by softening the moulded article.

公开(公告)号：DE19716373A1

公开(公告)日：1998-10-22

申请号：DE19716373

申请日：1997-04-18

Applicant: BASF AG

Inventor： HEIDER WOLFGANG ,  HUEBINGER WOLFGANG DR ,  KELLER PETER DR ,  EIDEN ULRICH DR

IPC: B01D3/22 ,  B01D19/00 ,  C08F6/00 ,  B01D3/00 ,  C08F6/10 ,  C08F6/16 ,  C08F6/24 ,  C08J3/02 ,  C09D5/34 ,  C09D201/00 ,  C09K3/10

Abstract: A counterflow column (C) for reducing the level of volatile matter in dispersions has 5-50 vertical and/or transverse flow filter bases with a free aperture area of 2-25% in the vertical type and 1-10% in the transverse type. The mean aperture hole diameter is 10-50 mm in the vertical type and 2-10 mm in the transverse type. Also claimed are: (a) a complete plant for production of polymer dispersions comprising a reactor (A), a post reactor (B), the claimed counterflow column (C), a heat exchanger (D), a relaxation chamber (E), filter (F) and conditioning unit (G); (b) a process for production of dispersions with a low volatile content in which the dispersion is treated with steam in a counterflow column (C) of either type, the steam passing through the column in the opposite direction to the dispersion at 0.1-0.7 bar pressure; (c) a complete process for polymer dispersion production to achieve low volatile content involving polymerisation, post reaction, treating the dispersion with steam as claimed, extracting steam from the column (C) and depressurising the resulting dispersion, filtering and conversion into products; (d) a claimed polymer dispersion produced by the process which has a volatile content of \} 100 ppm.

公开(公告)号：DE19629558A1

公开(公告)日：1998-01-29

申请号：DE19629558

申请日：1996-07-22

Applicant: BASF AG

Inventor： MEYER BERND DR ,  GRIMMER KARL ,  NITZSCHMANN ROBERT DR ,  JAEGER MICHAEL ,  REUVERS JOHANNES DR ,  KLING GEORG DR ,  PURUCKER BERNHARD DR ,  WUNDER RAINER DR ,  EIDEN ULRICH DR

IPC: B01D53/14 ,  B01D53/56 ,  B01D53/58 ,  B01D53/68 ,  B01D53/78 ,  B01D47/14