公开(公告)号：DE19710442B4

公开(公告)日：2008-02-07

申请号：DE19710442

申请日：1997-03-13

Applicant: BASF AG

Inventor： GLUECK GUISCARD ,  HAHN KLAUS ,  HENN ROLF ,  WASMER KARL-HEINZ ,  LOTH WOLFGANG ,  KNOLL KONRAD ,  HOLOCH JAN ,  GEIGER THOMAS

IPC: C08L25/10 ,  B29C47/00 ,  C08J9/00 ,  C08J9/14 ,  C08J9/18 ,  C08L25/06 ,  C08L53/02 ,  E04B1/74 ,  F16L59/00

公开(公告)号：DE10342138A1

公开(公告)日：2005-04-07

申请号：DE10342138

申请日：2003-09-12

Applicant: BASF AG

Inventor： DIEBOLD BERND ,  STURM JUERGEN ,  WEIS DIETER ,  FRANCKE DANIEL ,  FRANKE AXEL ,  NILGES JOACHIM ,  TERSTEGEN BERND ,  HENSING HEIKO ,  FOERSTER MARKUS ,  RUMPF BERND ,  WASMER KARL-HEINZ ,  DILLMANN PETER

IPC: B01J19/02 ,  C23C18/16 ,  C23C18/18

Abstract: Coating an apparatus made from high-grade steel used in a chemical installation comprises pickling surfaces to be coated using an activator heated to 40-85 [deg] C made from a mixture of 10-300 ml hydrochloric or hydrofluoric acid, 1-5 ml sulfuric acid, 1-2 g iron (III) chloride, 6-12 g nickel chloride, 10-20 ml citric acid and water, removing the activator using an inert medium and directly coating the surfaces.

公开(公告)号：DE10330935A1

公开(公告)日：2005-02-03

申请号：DE10330935

申请日：2003-07-08

Applicant: BASF AG

Inventor： SUHM JUERGEN ,  LOTH WOLFGANG ,  SCHWITTAY CLAUDIUS ,  MEHLER CHRISTOF ,  KOCH JUERGEN ,  GRAMMATIS ZAFIRIOS ,  CLAUER JAUME ,  WIEDEMANN ALEXANDRA ,  NIEKEN ULRICH ,  WASMER KARL-HEINZ ,  SCHADE CHRISTIAN ,  DESBOIS PHILIPPE

IPC: C08F279/02 ,  C08F2/26

Abstract: Production of rubber-modified styrene polymers (I) comprises (1) producing rubber (II) dispersion by anionic dispersion polymerization of diene and optionally styrene monomer(s) in 3-6 carbon aliphatic hydrocarbon (III) which is nonsolvent for (II); (2) mixing intensively with styrene monomer and optionally comonomer, without separating (III), to dissolve (II) in monomer(s); and (3) anionic or free radical polymerization of (II) solution to (I) and simultaneous removal of (III). An independent claim is also included for rubber-modified styrene polymers made by this process.

公开(公告)号：DE102005049067A1

公开(公告)日：2007-04-19

申请号：DE102005049067

申请日：2005-10-13

Applicant: BASF AG

Inventor： CHENG TSUNG-CHIEH ,  OLBERT GERHARD ,  SCHMAUS PAULUS ,  WASMER KARL-HEINZ ,  SAUER MICHAEL ,  BARDON RAINER ,  CZAUDERNA BERNHARD

IPC: F28D7/00 ,  B01D1/00 ,  C08F6/10 ,  F28F1/40

Abstract: The invention proposes a tube bundle heat exchanger (R) for removing dissolved substances from a polymer solution (4) by means of degassing, having a bundle of tubes (1) which are arranged parallel to one another and vertically and are fastened at both ends in each case in a tube base (2), having a fixture (3) in each tube (1) which narrows the free passage cross section through the tube (1), wherein the tubes (1) are traversed by the polymer solution (4), and having a casing space (5) around the tubes (1) which is traversed by a liquid heat carrier (6), having deflecting plates (7) in the casing space (5) which are each arranged in cross-sectional planes of the tube bundle heat exchanger (R) and in each case form a deflecting region (8) for the heat carrier (6), which tube bundle heat exchanger (R) is characterized in that no tubes (1) are arranged in the deflecting regions (8), and in that all the fixtures (3) are of identical design.

公开(公告)号：DE102005054151A1

公开(公告)日：2007-05-16

申请号：DE102005054151

申请日：2005-11-14

Applicant: BASF AG

Inventor： GUENTHERBERG NORBERT ,  HOFMANN JUERGEN ,  WASMER KARL-HEINZ ,  LOTH WOLFGANG ,  SCHIERHOLZ JENS-UWE ,  SCHMAUS PAULUS ,  MOURS MARIAN ,  SCHADE CHRISTIAN ,  ITTEMANN PETER ,  HEINEN HARTMUT ,  CZAUDERNA BERNHARD ,  SAUER MICHAEL ,  BARDON RAINER ,  KRUEGER MARCO

IPC: C08F6/10 ,  B01D1/06 ,  B01D19/00 ,  C08J3/00 ,  F28F1/40

Abstract: The invention relates to a tube bundle heat exchanger (R) for removing dissolved substances from a polymer solution (P) by degassing, having a bundle of tubes (R) which are arranged parallel to one another and vertically and are fastened at both ends in each case in one tube plate (B), and having a degassing region below the lower tube plate (B), having an insert (1) in each tube (R), which insert (1) narrows the free throughflow cross section through the tube (R), and wherein the polymer solution (P) is supplied into the tubes (R) in a single-phase liquid state, and having a casing space around the tubes (R) which is traversed by a heat carrier, wherein the degassing takes place by means of a pressure drop between the inlet pressure of the polymer solution (P) in the tube bundle heat exchanger (R) and the degassing region, characterized in that each insert (1) is designed in such a way as to generate a pressure step between the inlet pressure and the pressure in the degassing region, by means of which pressure step a predefined low residual content of dissolved substances is obtained in the degassed polymer, and an additional heat input which is necessary for this purpose takes place via the heat carrier into the single-phase liquid polymer solution (P).

公开(公告)号：DE10107044A1

公开(公告)日：2002-08-14

申请号：DE10107044

申请日：2001-02-13

Applicant: BASF AG

Inventor： WASMER KARL-HEINZ ,  KORB HARDY ,  FUNKHAUSER STEFFEN ,  MEISTER MARTIN ,  WILDBURG GERALD

IPC: C08F6/00 ,  C08J3/00 ,  C08F6/06

Abstract: Method for transferring an aqueous polymer dispersion, at a temperature of >/= 50 DEG C, from a container (1) to a container (2), by means of a connecting line.