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    PURIFICATION OF CAPROLACTAM
    3.
    发明专利
    PURIFICATION OF CAPROLACTAM 未知

    公开(公告)号：MY134410A

    公开(公告)日：2007-12-31

    申请号：MYPI20034293

    申请日：2003-11-10

    Applicant: BASF AG

    Inventor： LUYKEN HERMANN ,  ANSMANN ANDREAS DR ,  BENISCH CHRISTOPH DR ,  BASLER PETER DR ,  FISCHER ROLF-HARTMUTH DR ,  MAIXNER STEFAN DR ,  MELDER JOHANN-PETER DR

    IPC: C07D201/16 ,  C07D201/08

    Abstract: A PROCESS FOR PURIFYING CRUDE CAPROLACTAM WHICH HAS BEEN OBTAINED BY 1) CONVERTING A MIXTURE (I) COMPRISING 6-AMINOCAPRONITRILE AND WATER TO A MIXTURE (II) COMPRISING CAPROLACTAM,AMMONIA, WATER, HIGH BOILERS AND LOW BOILERS IN THE PRESENCE OF A CATALYST, THEN2) REMOVING AMMONIA FROM MIXTURE (II) TO OBTAIN A MIXTURE (III) COMPRISING CAPROLACTAM, WATER,HIGH BOILERS AND LOW BOILERS, THEN3) COMPLETELY OR PARTLY REMOVING WATER FROM MIXTURE (III) TO OBTAIN CRUDE CAPROLACTAM (IV) COMPRISING CAPROLACTAM, HIGH BOILERS AND LOW BOILERS, WHICH COMPRISES A) FEEDING THE CRUDE CAPROLACTAM AND AN INORGANIC ACID WHICH HAS A BOILING POINT ABOVE THE BOILING POINT OF CAPROLACTAM UNDER THE DISTILLATION CONDITIONS OF THE FOLLOWING STEPS B) TO H) TO A FIRST DISTILLATION APPARATUS C1,@ B) DISTILLING THE CRUDE CAPROLACTAM AND THE INORGANIC ACID IN THE FIRST DISTILLATION APPARATUS C1, AND REMOVING A FIRST SUBSTREAM IN THE BOTTOM REGION AND A SECOND SUBSTREAM IN THE TOP REGION OF THE DISTILLATION APPARATUS C1,@ C) FEEDING THE SECOND SUBSTREAM FROM STEP B) TO A SECOND DISTILLATION APPARATUS C2,@ D) DISTILLING THE SECOND SUBSTREAM FROM STEP B) IN THE SECOND DISTILLATION APPARATUS C2, AND REMOVING A FIRST SUBSTREAM IN THE BOTTOM REGION AND A SECOND SUBSTREAM IN THE TOP REGION OF THE DISTILLATION APPARATUS C2,@ E) FEEDING THE FIRST SUBSTREAM FROM STEP D) TO A THIRD DISTILLATION APPARATUS C3,@ F) DISTILLING THE FIRST SUBSTREAM FROM STEP D) TO A THIRD DISTILLATION APPARATUS C3, AND REMOVING A FIRST SUBSTREAM IN THE BOTTOM REGION AND PURIFIED CAPROLACTAM IN THE TOP REGION OF DISTILLATION APPARATUS C3, AND

    METHOD FOR REDUCING THE CONTENT OF AN UNSATURATED AMINE IN A MIXTURE CONTAINING AN AMINO NITRILE, A DIAMINE, A DINITRILE OR MIXTURES THEREOF
    5.
    发明专利
    METHOD FOR REDUCING THE CONTENT OF AN UNSATURATED AMINE IN A MIXTURE CONTAINING AN AMINO NITRILE, A DIAMINE, A DINITRILE OR MIXTURES THEREOF 未知

    公开(公告)号：MY137427A

    公开(公告)日：2009-01-30

    申请号：MYPI20031886

    申请日：2003-05-21

    Applicant: BASF AG

    Inventor： MAIXNER STEFAN DR ,  BENISCH CHRISTOPH DR ,  LUYKEN HERMANN ,  BASLER PETER DR ,  FISCHER ROLF-HARTMUTH DR ,  MELDER JOHANN-PETER DR ,  ANSMANN ANDREAS DR

    IPC: C07C209/84 ,  C07C211/09 ,  C07C211/12 ,  C07C253/34 ,  C07C255/09 ,  C07C255/24

    Abstract: A PROCESS FOR REDUCING THE LEVEL OF AN ALIPHATIC MONOUNSATURATED AMINE (IV) INA MIXTURE (V) CONTAINING AN AMINONITRILE (I) OR A DIAMINE (II) OR A DINITRILE (III) OR MIXTURES THEREOF AS WELL AS SAID AMINE (IV) BYA) REACTING SAID MIXTURE (V) WITH AN ANIONIC NUCLEOPHILE (VI ) WHICH CONTAINS A NUCLEOPHILIC ATOM SELECTED FROM THE GROUP CONSISTING OF OXYGEN, NITROGEN AND SULFUR, WHICH IS CAPABLE OF TAKING UP AN H+ ION TO FROM AN ACID HAVING A PKa VALUE IN THE RANGE FROM 7 TO 11, AS MEASURED IN WATER AT 25°C, AND WHICH HAS A RELATIVE NUCLEOPHILICITY,AS MEASURED IN METHYL PERCHLORATE/METHANOL AT 25°C, IN THE RANGE FROM 3.4 TO 4.7 WHEN SAID NUCLEOPHILIC ATOM IS OXYGEN, IN THE RANGE FROM 4.5 TO 5.8 WHEN SAID NUCLEOPHILIC ATOM IS NITROGEN, AND IN THE RANGE FROM 5.5 TO 6.8 WHEN SAID NUCLEOPHILIC ATOM IS SULFUR IN AN AMOUNT IN THE RANGE FROM 0.01 TO 10 MOL PER MOLE OF SAID AMINE (IV) IN SAID MIXTURE (V) AT A TEMPERATURE IN THE RANGE FROM 50 TO 200°C TO OBTAIN A MIXTURE (VII),B) DISTILLING SAID AMINONITRILE (I) OR SAID DIAMINE (II) OR SAISD DINITRILE (III) OR MIXTURES THEREOF FROM SAID MIXTURE (VII) AT A TEMPERATURE IN THE RANGE FROM 50 TO 200°C AND AT A PRESSURE IN THE RANGE FROM 0.1 TO 100 KPA TO OBTAIN A BOTTOM PRODUCT (VIII), WHICH COMPRISES C) DISTILLING AN AMINONITRILE (I) OR DIAMINE (II) OR DINTRILE (III) OR MIXTURES THEREOF FORM SAID BOTTOM PRODUCT (VIII) AT ATEMPERATURE WHICH IS LOWER THAN THAT CHOSEN IN STEP B).

    9.
    发明专利
    未知

    公开(公告)号：AT287869T

    公开(公告)日：2005-02-15

    申请号：AT01125324

    申请日：2001-10-26

    Applicant: BASF AG

    Inventor： ANSMANN ANDREAS DR ,  BENISCH CHRISTOPH DR ,  FUNKE FRANK DR ,  OHLBACH FRANK DR ,  MERGER MARTIN DR

    IPC: C07D295/12 ,  B01J25/00 ,  B01J25/02 ,  B01J35/04 ,  B01J35/10 ,  B01J37/00 ,  C07B61/00 ,  C07C209/48 ,  C07C211/14 ,  C07C211/35 ,  C07C211/36 ,  C07D295/13

    Abstract: Nitrite is hydrogenated to primary amine using an activated macroporous Raney catalyst comprising alpha -alumina and transition metal(s), obtained by (i) shaping kneadable composition comprising an alloy, a shaping aid, water and a pore former, (ii) calcining and activating by treating with aqueous alkali metal hydroxide solution and (iii) rinsing with aqueous alkali metal hydroxide solution and water. Hydrogenating nitrite to primary amine involves using activated macroporous Raney catalyst comprising alpha -alumina and transition metal(s), such as iron, cobalt, nickel, titanium, zirconium, chromium and manganese. The Raney catalyst is obtained by preparing a kneadable composition comprising an alloy, a shaping aid, water and a pore former, which is then shaped to form a component. The shaped component is calcined and activated by treating with aqueous alkali metal hydroxide solution. The catalyst obtained is rinsed with aqueous alkali metal hydroxide solution and water. Independent claims are also included for the following: (1) a macroporous Raney catalyst; and (2) the production of a macroporous Raney catalyst.

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