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    11.
    发明专利
    未知

    公开(公告)号：DE50115263D1

    公开(公告)日：2010-01-28

    申请号：DE50115263

    申请日：2001-05-25

    Applicant: BASF SE

    Inventor： ECK BERND ,  HEILEK JOERG ,  SCHMIDT-RADDE MARTIN ,  HELFERT HERBERT

    IPC: C07D207/267 ,  C07D201/16 ,  C07D207/26

    Abstract: The invention describes a process for the isolation of pure N-vinylpyrrolidone from N-vinylpyrrolidone-containing crude products, comprising a single-stage or multistage crystallization process, which comprises passing the mother liquor from the first crystallization stage either to a distillative and/or extractive purification, or returning it to an N-vinylpyrrolidone-containing product stream of the preparation process.

    Target product continuous separating operation in form of fine crystals from liquid phase, includes heat exchanger having secondary space and primary space
    12.
    发明专利
    Target product continuous separating operation in form of fine crystals from liquid phase, includes heat exchanger having secondary space and primary space 未知

    公开(公告)号：DE102007043758A1

    公开(公告)日：2008-10-23

    申请号：DE102007043758

    申请日：2007-09-13

    Applicant: BASF SE

    Inventor： HEILEK JOERG ,  HAMMON ULRICH ,  MUELLER-ENGEL KLAUS JOACHIM

    IPC: B01D9/02 ,  C07C57/07

    Abstract: Target product continuous separating operation includes a heat exchanger having a secondary space and a primary space. The secondary space is separated from the primary space by a separating wall, which serves as a surface to transfer the heat from the secondary space to the primary space, where a current in fluid phase, and component of mass flow is fed to the target product in the secondary space of the heat exchanger. A fluid cooling medium having a temperature is fed to the primary space, such that fine crystals of the target product are formed in the secondary phase from the fluid residual phase of the fluid phase. A fluid cooling medium containing a mass flow is fed from primary space to the target product in a former operating state and in latter operating state. A fluid cooling medium containing another mass flow is fed from the secondary space to the target product. The liquid phase has the target product and different product, whose total mole fraction has a value in a component. The total mole fraction at the component, which is different from the target product, in the fluid phase fed in the secondary space, is bigger in the latter operating state than the former operating state.

    PRODUCING OXIDIC COMPOUNDS
    15.
    发明专利
    PRODUCING OXIDIC COMPOUNDS 未知

    公开(公告)号：CA2787373A1

    公开(公告)日：2011-08-04

    申请号：CA2787373

    申请日：2011-01-28

    Applicant: BASF SE

    Inventor： LAMPERT JORDAN KEITH ,  BRAMNIK KIRILL ,  HEILEK JOERG

    IPC: H01M4/28

    Abstract: A process for producing oxidic compounds of the general formula (?) LizMxOy (?) wherein M is one or more elements from groups 2 to 12 of the periodic table, more particularly selected from Co, Mn, Ni, Fe, Al, Mg, x is 1 to 2, y is 2 to 4, and z is 0.5 to 1.5, comprises heating mixtures selected from oxides, hydroxides, carbonates and nitrates of Li and of M together to temperatures in the range from 600 to 1200? in a reaction vessel performing incomplete rotary motions about one axis.

    Verfahren der Inbetriebnahme eines Trennverfahrens zur reinigenden Abtrennung von Acrylsäurekristallen aus einer Suspension S ihrer Kristalle in Mutterlauge
    18.
    发明专利
    Verfahren der Inbetriebnahme eines Trennverfahrens zur reinigenden Abtrennung von Acrylsäurekristallen aus einer Suspension S ihrer Kristalle in Mutterlauge 未知

    公开(公告)号：DE102009045767A1

    公开(公告)日：2010-08-12

    申请号：DE102009045767

    申请日：2009-10-16

    Applicant: BASF SE

    Inventor： HEILEK JOERG ,  LITTERS DIRK ,  MUELLER-ENGEL KLAUS JOACHIM

    IPC: C07C51/41 ,  B01D9/00 ,  C07C57/07

    Abstract: Ein Verfahren der Inbetriebnahme eines Trennverfahrens zur reinigenden Abtrennung von Acrylsäurekristallen aus einer Suspension S ihrer Kristalle in Mutterlauge mit einer hydraulischen Waschkolonne, die einen Kristallschmelzekreis einschließlich Kristallschmelzeraum sowie einen Prozess- und einem Verteilerraum, die durch einen Boden mit beide Räume verbindenden Durchgängen getrennt sind, aufweist, bei dem man zur erstmaligen Ausbildung des Kristallbetts zunächst den Kristallschmelzekreis und wenigstens teilweise den Prozessraum mit einer Acrylsäure enthaltenden Anfahrflüssigkeit, deren Acrylsäurekristallbildungstemperatur kleiner oder gleich wie die um 15°C erhöhte Temperatur der Suspension S ist, befüllt, und anschließend die Befüllung der Waschkolonne mit der Suspension S und optional mit Steuerlauge fortsetzt, bis die Differenz zwischen dem Druck im Kristallschmelzeraum und dem Druck im Verteilerraum plötzlich fällt, wobei bis zu diesem Zeitpunkt der arithmetische Mittelwert des durch die Filter der Filterrohre der Waschkolonne insgesamt strömenden Ablaugestroms, bezogen auf die Fläche aller Filter nicht mehr als 80 m/(mh) beträgt.

    20.
    发明专利
    未知

    公开(公告)号：DE102008042010A1

    公开(公告)日：2009-04-16

    申请号：DE102008042010

    申请日：2008-09-12

    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.

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