公开(公告)号：WO2007107584A3

公开(公告)日：2008-01-31

申请号：PCT/EP2007052681

申请日：2007-03-21

Applicant: BASF AG ,  SEIBRING JOACHIM ,  BECKER JENS ,  KOPIETZ MICHAEL ,  BRUCKMANN THEODOR

Inventor： SEIBRING JOACHIM ,  BECKER JENS ,  KOPIETZ MICHAEL ,  BRUCKMANN THEODOR

IPC: B29B9/06 ,  B29C44/34 ,  B29C47/30

CPC classification number: B29B9/065 ,  B29C44/3461 ,  B29C47/0011 ,  B29C47/0066 ,  B29C47/0071 ,  B29C47/0073 ,  B29C47/0872 ,  B29C47/30 ,  B29C47/864 ,  B29C2791/007 ,  B29C2793/0027 ,  B29K2077/00

Abstract: The invention relates to a method for granulating polymer melts in a granulation chamber in which a cutting device is accommodated at a pressure above ambient pressure. In a first step, the granulating chamber is flooded with a gas which is inert in relation to the polymer melt and has a pressure at which granulation is carried out. The polymer melt is then injected into the granulating chamber. The gas is finally expelled from the granulating chamber by a liquid once the polymer melt starts to flow through the cutting device, the melt being cut into pellets.

Abstract translation: 本发明涉及一种用于造粒聚合物熔体在其中切割装置中的安装了粒化室，在环境压力以上的压力的方法。 在第一步骤中造粒室与一个相反的聚合物熔体淹没具有在该造粒进行的压力的惰性气体。 此后，将聚合物熔体注入造粒室。 最后，从造粒室中的气体通过液体置换，只要聚合物熔体开始通过切割器，其被切成颗粒流动。

公开(公告)号：CA2666422A1

公开(公告)日：2008-05-02

申请号：CA2666422

申请日：2007-10-19

Applicant: BASF AG

Inventor： WEISS ROBERT ,  BECKER JENS

IPC: C08G69/04 ,  C08G69/16 ,  C08G69/18 ,  C08G69/46

Abstract: The invention relates to the use of coil tube evaporators for concentrati ng aqueous extract solutions from the extraction of polyamides based on poly amide (6). A method for the production of polyamides based on polyamide (6) comprises the steps (b) one-phase or two-phase reaction of aqueous extract s olutions from the extraction of polyamides based on polyamide (6), which are possibly enriched with caprolactam, aminocapronitrile, aminocaproic acid, o r mixtures thereof, in a pre-reactor at pressures in the range of 5 to 40 ba r and temperatures in the range of 150 to 300°C, wherein in the two-phase re action, the evolved gaseous phase can be separated from the liquid phase, c) discharge of the reaction mixture obtained from step b) by means of a coil tube evaporator at a temperature in the range of 220 to 300°C with a reducti on of pressure to approximately atmospheric pressure and separation of a gas eous phase, producing a liquid phase, d) further reaction of the liquid phas e obtained from step c) at temperatures in the range of 240 to 300°C and pre ssures in the range of atmospheric pressure to 2 bar, with a separation of a gaseous phase.

公开(公告)号：BR0313572A

公开(公告)日：2005-06-21

申请号：BR0313572

申请日：2003-07-30

Applicant: BASF AG

Inventor： GENGER THOMAS ,  OOST CARSTEN ,  SNOECK JOOST-WILLEM ,  STROEZEL MANFRED ,  BECKER JENS ,  BERNING WILFRIED

IPC: B01J10/00 ,  B01J19/00 ,  C07B61/00 ,  C07C27/12 ,  C07C29/50 ,  C07C35/08 ,  C07C45/33 ,  C07C45/34 ,  C07C45/35 ,  C07C45/36 ,  C07C49/403 ,  C07C51/215 ,  C07C51/25 ,  C07C51/265 ,  C07C407/00 ,  C07C409/14 ,  C07C409/16 ,  C07C51/16

Abstract: A process for oxidizing a starting material with an oxidizing agent to obtain a product, which comprises carrying out the oxidation in a reaction apparatus which has a bottom region at the lower end, a top region at the upper end and a reaction zone between the top region and the bottom region, maintaining the reaction mixture in the boiling state in the reaction zone, and introducing oxidizing agent into the reaction zone in at least two substreams.

公开(公告)号：CA2646703A1

公开(公告)日：2007-09-27

申请号：CA2646703

申请日：2007-03-21

Applicant: BASF AG

Inventor： BRUCKMANN THEODOR ,  KOPIETZ MICHAEL ,  SEIBRING JOACHIM ,  BECKER JENS

IPC: B29B9/06 ,  B29C44/34 ,  B29C48/345

Abstract: The procedure for granulating polymer melts (21) in a granulation chamber (20) to manufacture polyamide, comprises flooding the granulating chamber with a nitrogen/air in relation to the polymer melt, injecting the polymer melt into the granulating chamber and expelling the nitrogen/air from the granulating chamber by a liquid once the polymer melt starts to flow through the cutting device. After expelling the nitrogen/air, a further polymer melt is injected into the chamber. In the granulation chamber, a cutting device is accommodated at a pressure above the ambient pressure. The procedure for granulating polymer melts (21) in a granulation chamber (20) to manufacture polyamide, comprises flooding the granulating chamber with a nitrogen/air in relation to the polymer melt, injecting the polymer melt into the granulating chamber and expelling the nitrogen/air from the granulating chamber by a liquid once the polymer melt starts to flow through the cutting device. After expelling the nitrogen/air, a further polymer melt is injected into the chamber. In the granulation chamber, a cutting device is accommodated at a pressure above the ambient pressure. The nitrogen/air shows a pressure, with which the granulation is carried out. The polymer melt in the cutting device is cut into pellets. The granulated pellets with the liquid are discharged from the granulation chamber and subsequently separated from the liquid. The pressure in the granulation chamber is 2-15 bar. An independent claim is included for a device for granulating polymer melts in the granulation chamber.

公开(公告)号：PL375785A1

公开(公告)日：2005-12-12

申请号：PL37578503

申请日：2003-07-30

Applicant: BASF AG

Inventor： GENGER THOMAS ,  OOST CARSTEN ,  SNOECK JOOST-WILLEM ,  STROEZEL MANFRED ,  BECKER JENS ,  BERNING WILFRIED

IPC: B01J10/00 ,  B01J19/00 ,  C07B61/00 ,  C07C27/12 ,  C07C29/50 ,  C07C35/08 ,  C07C45/33 ,  C07C45/34 ,  C07C45/35 ,  C07C45/36 ,  C07C49/403 ,  C07C51/215 ,  C07C51/25 ,  C07C51/265 ,  C07C407/00 ,  C07C409/14 ,  C07C409/16

Abstract: A process for oxidizing a starting material with an oxidizing agent to obtain a product, which comprises carrying out the oxidation in a reaction apparatus which has a bottom region at the lower end, a top region at the upper end and a reaction zone between the top region and the bottom region, maintaining the reaction mixture in the boiling state in the reaction zone, and introducing oxidizing agent into the reaction zone in at least two substreams.

公开(公告)号：AU2003250195A1

公开(公告)日：2004-03-19

申请号：AU2003250195

申请日：2003-07-30

Applicant: BASF AG

Inventor： STROEZEL MANFRED ,  BECKER JENS ,  BERNING WILFRIED ,  GENGER THOMAS ,  OOST CARSTEN ,  SNOECK JOOST-WILLEM

IPC: B01J10/00 ,  B01J19/00 ,  C07B61/00 ,  C07C27/12 ,  C07C29/50 ,  C07C35/08 ,  C07C45/33 ,  C07C45/34 ,  C07C45/35 ,  C07C45/36 ,  C07C49/403 ,  C07C51/215 ,  C07C51/25 ,  C07C51/265 ,  C07C407/00 ,  C07C409/14 ,  C07C409/16 ,  C07C51/16

Abstract: A process for oxidizing a starting material with an oxidizing agent to obtain a product, which comprises carrying out the oxidation in a reaction apparatus which has a bottom region at the lower end, a top region at the upper end and a reaction zone between the top region and the bottom region, maintaining the reaction mixture in the boiling state in the reaction zone, and introducing oxidizing agent into the reaction zone in at least two substreams.

公开(公告)号：DE10240816A1

公开(公告)日：2004-03-11

申请号：DE10240816

申请日：2002-08-30

Applicant: BASF AG

Inventor： GENGER THOMAS ,  OOST CARSTEN ,  SNOECK JOOST-WILLEM ,  STROEZEL MANFRED ,  BECKER JENS ,  BERNING WILFRIED

IPC: B01J10/00 ,  B01J19/00 ,  C07B61/00 ,  C07C27/12 ,  C07C29/50 ,  C07C35/08 ,  C07C45/33 ,  C07C45/34 ,  C07C45/35 ,  C07C45/36 ,  C07C49/403 ,  C07C51/215 ,  C07C51/25 ,  C07C51/265 ,  C07C407/00 ,  C07C409/14 ,  C07C409/16 ,  C07B33/00

Abstract: A process for oxidizing a starting material with an oxidizing agent to obtain a product, which comprises carrying out the oxidation in a reaction apparatus which has a bottom region at the lower end, a top region at the upper end and a reaction zone between the top region and the bottom region, maintaining the reaction mixture in the boiling state in the reaction zone, and introducing oxidizing agent into the reaction zone in at least two substreams.