公开(公告)号：DE102007043759A1

公开(公告)日：2008-09-11

申请号：DE102007043759

申请日：2007-09-13

Applicant: BASF SE

Inventor： HEILEK JOERG ,  HAMMON ULRICH ,  MUELLER-ENGEL KLAUS JOACHIM ,  SCHLIEPHAKE VOLKER ,  BAUMANN DIETER

IPC: B01D9/02 ,  C07C57/07

Abstract: The procedure for continuous separation of target product (X) in the form of fine particle of crystallisate from a liquid phase (P) existing from the target product (X) and/or by the target product of different constituents, comprises indirectly operating a heat exchanger having primary and secondary areas, which are spatially separated with one another through a material divider that serves as an area for transmitting heat from the secondary area to the primary area by passing a stream at the liquid phase (P) in the secondary area of the heat exchanger. The procedure for continuous separation of target product (X) in the form of fine particle of crystallisate from a liquid phase (P) existing from the target product (X) and/or by the target product of different constituents, comprises indirectly operating a heat exchanger having primary and secondary areas, which are spatially separated with one another through a material divider that serves as an area for transmitting heat from the secondary area to the primary area by passing a stream at the liquid phase (P) in the secondary area of the heat exchanger during the primary area flows throughable simultaneously to a liquid cooling medium so that it forms fine particles of crystallisate of the target product in the secondary area under disposition of a liquid residual phase from the liquid phase (P). The total mole fraction of the liquid phase has the value of M b, p ges at the constituent (B i). The liquid residual phase (R) contains ingredients with a total mole fraction of M b, r (ges) greater than M b, p (ges) in comparison with the liquid phase (P). The content of residual phase in the target product is 70 wt.%. The cooling medium is suspended by fine particles of crystallisate of the target product in the liquid residual phase under receiving a suspension (S) having a crystallization grade (Y). The secondary area of the heat exchanger continuously takes the suspension with the temperature T s (aus). The suspension of fine particle crystallisate from the extracted suspension in load of discharge device is introduced with temperature (TS) to a mixing buffer container by a pump and the liquid phase is separated from the suspension contained in the discharge device. The temperature of the suspension in the buffer container is elevated from the way of secondary area in the buffer container and/or pipelines of the buffer container by external energy source at a value of T(pu) above of T s(aus) and/or the total mole fraction of the ingredients is increased in the liquid residual phase of the suspension in the buffer container through external additive in the ingredients at a value of M b, p u (ges) above of M b, r (ges). The T(pu)-T s(aus) is greater than or equal to 0.1 K. The increasing of M b, r ges at M b, r (ges) is greater than or equal to 0.1%. The content of the liquid residual phase at the target product is greater than or equal 90 wt.%. The crystallization grade (Y) is 0.20-0.40.

公开(公告)号：BRPI1007818A2

公开(公告)日：2016-02-23

申请号：BRPI1007818

申请日：2010-02-15

Applicant: BASF SE

Inventor： HEILEK JÖRG ,  MÜLLER-ENGEL KLAUS JOACHIM ,  SCHLIEPHAKE VOLKER ,  GUNKEL WOLFGANG ,  SCHNEIDER WOLFGANG

IPC: B01D9/00 ,  F16C17/04

公开(公告)号：BRPI0809073A2

公开(公告)日：2014-09-09

申请号：BRPI0809073

申请日：2008-03-17

Applicant: BASF SE

Inventor： HEILEK JOERG ,  HAMMON ULRICH ,  SCHLIEPHAKE VOLKER ,  MUELLER-ENGEL KLAUS JOACHIM ,  BLUM TILL

IPC: C07C51/50 ,  C07C45/78 ,  C07C45/79 ,  C07C45/86 ,  C07C47/22 ,  C07C51/42 ,  C07C51/47 ,  C07C57/04 ,  C07C67/48 ,  C07C67/56 ,  C07C67/62 ,  C07C69/54

Abstract: A process for storing a monomer phase which is liquid under the conditions of storage and comprises methacrylic monomers to an extent of ≧95% by weight and has been obtained by condensation out of a gaseous phase or by melting a crystalline phase, in a storage vessel, in which polymer of the monomer present in dissolved form in the liquid monomer phase is removed therefrom on the route from its generation into the storage vessel, and also a process for withdrawing liquid monomer phase from the storage vessel in which polymer of the monomer present in dissolved form in the monomer phase is likewise removed.

公开(公告)号：ZA201303255B

公开(公告)日：2014-07-30

申请号：ZA201303255

申请日：2013-05-06

Applicant: BASF SE

Inventor： BLUM TILL ,  ZUROWSKI PETER ,  KORN TOBIAS JOHANNES ,  HAREMZA SYLKE ,  FRIESE THORSTEN ,  MARTIN FRIEDRICH-GEORG ,  JAGER ULRICH ,  RISSEL STEFFEN ,  SCHLIEPHAKE VOLKER

IPC: C07C20060101

Abstract: Inhibiting the unwanted radical polymerization of acrylic acid present in a liquid phase (P1), comprises adding at least one chemical compound of copper to the liquid phase (P1). The amount of acrylic acid is 10 wt.%. The liquid phase additionally contains propionic acid (at least 100 wt. parts per million, based on wt. of acrylic acid in the liquid phase) and glyoxal (at least 100 wt. parts per million, based on wt. of acrylic acid in the liquid phase). An independent claim is also included for the liquid phase (P1), comprising at least one chemical compound of copper.

公开(公告)号：AT520734T

公开(公告)日：2011-09-15

申请号：AT07857378

申请日：2007-12-11

Applicant: BASF SE

Inventor： LIPOWSKY GUNTER ,  SCHLIEPHAKE VOLKER ,  RISSEL STEFFEN ,  JAEGER ULRICH ,  HOEFER FRANK ,  HAREMZA SYLKE ,  ZUROWSKI PETER ,  MUELLER-ENGEL KLAUS JOACHIM

IPC: C08K5/17 ,  C08F220/00 ,  F28D1/00

Abstract: Process for transferring heat to a liquid mixture comprising at least one (meth)acrylic monomer with the aid of an indirect heat exchanger comprises introducing the liquid mixture simultaneously into the primary side of the heat exchanger by a liquid heat carrier and secondary side of the heat exchanger, where: the liquid mixture comprising at least one (meth)acrylic monomer contains at least one added active compound other than (meth)acrylic monomers from tertiary amine or salts formed from a tertiary amine and Bronsted acid, and quaternary ammonium compounds. Process for transferring heat to a liquid mixture comprising at least one (meth)acrylic monomer with the aid of an indirect heat exchanger comprises introducing the liquid mixture simultaneously into the primary side of the heat exchanger by a liquid heat carrier and secondary side of the heat exchanger, where: the liquid mixture comprising at least one (meth)acrylic monomer contains at least one added active compound other than (meth)acrylic monomers from tertiary amine or salts formed from a tertiary amine and Bronsted acid, and quaternary ammonium compounds, with proviso that none of the tertiary and quaternary nitrogen atoms in the active compound bears a phenyl group, but at least partly contains an alkyl group.

公开(公告)号：DE102009058058A1

公开(公告)日：2011-06-16

申请号：DE102009058058

申请日：2009-12-14

Applicant: BASF SE

Inventor： LIPOWSKY GUNTER ,  RISSEL STEFFEN ,  SCHLIEPHAKE VOLKER ,  JAEGER ULRICH ,  HAREMZA SYLKE

IPC: C07C57/075 ,  C07C51/50 ,  C07C57/04

公开(公告)号：AT509902T

公开(公告)日：2011-06-15

申请号：AT03711919

申请日：2003-03-04

Applicant: BASF SE

Inventor： SCHROEDER JUERGEN ,  MUELLER-ENGEL KLAUS ,  SCHLIEPHAKE VOLKER ,  HAMMON ULRICH ,  DIEHL VOLKER ,  JAEGER ULRICH

IPC: C07C67/54 ,  B08B9/08 ,  C07C51/44 ,  C07C51/46 ,  C07C57/07 ,  C07C69/54

Abstract: In process for cleaning tray columns which are used for the purposes of rectifiying liquids comprising (meth)acrylic compounds, a basic liquid is conveyed downward through the tray column and a gas is passed through the column in countercurrent to the basic liquid at an average gas phase differential pressure over all trays of at least 0.5 mbar/tray.

公开(公告)号：DE102010001228A1

公开(公告)日：2011-02-17

申请号：DE102010001228

申请日：2010-01-26

Applicant: BASF SE

Inventor： BLUM TILL ,  ZUROWSKI PETER ,  RISSEL STEFFEN ,  HAREMZA SYLKE ,  FRIESE THORSTEN ,  JAEGER ULRICH ,  SCHLIEPHAKE VOLKER ,  MUELLER-ENGEL KLAUS JOACHIM ,  HAMMON ULRICH ,  HOEFER FRANK

IPC: C07C57/07 ,  C07C57/05

Abstract: Ein Verfahren der Abtrennung einer rohen Acrylsäure aus einem Glyoxal als Nebenprodukt enthaltenden Produktgasgemisch einer heterogen katalysierten partiellen Gasphasenoxidation wenigstens einer C-Vorläuferverbindung, das die Absorption der Acrylsäure in einem hochsiedenden Absorptionsmittel sowie die rektifikative Aufarbeitung des resultierenden Absorbats umfasst, und bei dem von aus dem Sumpfraum der Absorptionskolonne entnommener Sumpfflüssigkeit in einer Destillationseinheit darin enthaltenes Absorptionsmittel abdestilliert und in die Absorption rückgeführt wird, bevor dabei verbliebene Schwersieder ausgeschleust werden, und bei dem durch Beschränkung der Schwersiederverweilzeit in der Destillationseinheit der Glyoxalgehalt der rohen Acrylsäure vermindert wird.

公开(公告)号：ZA200907408B

公开(公告)日：2011-01-26

申请号：ZA200907408

申请日：2009-10-22

Applicant: BASF SE

Inventor： BLUM TILL ,  HEILEK JORG ,  MULLER-ENGEL KLAUS JOACHIM ,  SCHLIEPHAKE VOLKER ,  HAMMON ULRICH

Abstract: A process for transporting a liquid monomer phase which has been withdrawn from a storage vessel and comprises methacrylic monomers to an extent of ≧90% by weight, in a tank truck or in a tanker ship, in which the liquid monomer phase is subjected to a separating operation on the route from the storage vessel into the tank of a tank truck or of a tanker ship in order to separate polymer of the monomer present in dissolved form in the liquid monomer phase.

公开(公告)号：DE502004010465D1

公开(公告)日：2010-01-14

申请号：DE502004010465

申请日：2004-07-17

Applicant: BASF SE

Inventor： SCHLIEPHAKE VOLKER ,  HAMMON ULRICH ,  BECHER ROLF-DIETER ,  MUELLER-ENGEL KLAUS JOACHIM

IPC: C07C45/35 ,  C07C45/33 ,  C07C45/90 ,  C07C47/22 ,  C07C51/25 ,  C07C51/64 ,  C07C57/04

Abstract: Process for operating a continuous heterogeneously catalyzed gas phase partial oxidation of at least one organic compound using compressed air as the oxygen source which is filtered before its compression.