CATALYST FOR EPOXIDATION REACTIONS

    公开(公告)号:MY135495A

    公开(公告)日:2008-04-30

    申请号:MYPI20033511

    申请日:2003-09-15

    Applicant: BASF AG

    Abstract: THE PRESENT INVENTION RELATES TO THE MANUFACTURE OF SOILID MATERIALS OR SHAPED BODIES CONTAINING AT LEAST ONE ZEOLITE AND BEING AT LEAST PARTLY CRYSTALLINE. FURTHERMORE, THE PRESENT INVENTION RELATES TO THE SOLID MATERIALS OR SHAPED BODIES AS SUCH AND TO THE USE OF THESE MATERIALS FOR REACTIONS OF COMPOUNDS HAVING AT LEAST ONE C-C DOUBLE BOND WITH AT LEAST ONE HYDROPEROXIDE. SPECIFICALLY, THE PRESENT INVENTION RELATES TO A PROCESS FOR THE MANUFACTURE OF A SOLID MATERIAL CONTAINING AT LEAST ONE ZEOLITE AND BEING AT LEAST PARTLY CRYSTALLINE, WHEREIN THE SYNTHESIS OF THE SAID SOLID MATERIAL INVOLVES AT LEAST ONE PARTIAL STEP OF CONTACTING AT LEAST ONE TRANSITION METAL OXIDE SOURCE WITH AT LEAST ONE EPOXIDE OR HYDROLYSATE THEREOF PRIOR TO OR DURING THE AT LEAST PARTIAL CRYSTALLIZATION OF SAID SOLID MATERIAL.

    Simultaneous separation process of 6-aminocapronitrile and hexamethylenediamine

    公开(公告)号:CZ289878B6

    公开(公告)日:2002-04-17

    申请号:CZ20012583

    申请日:2001-07-13

    Applicant: BASF AG

    Abstract: Simultaneous prepn of caprolactam and hexamethylene diamine (HMD) from adipo-dinitrile (ADN) comprises (a) partial hydrogenation of (I) to a mixt. of ADN; HMD, 6-amino-capronitrile (ACN) ammonia and hexamethylenimine (HMI); (b) distillation in a first column at 10-30 br and 60-220 deg C in the presence of an inert substance (A) that boils at 60-220 deg C at 18 bar, to remove most of the ammonia at the head, leaving a residue; (c) distillation in a second column of the residue which contains ADN, HMD, ACN, HMI, (A) and residual NH3) at 100-220 deg C and 2-15 bar, under conditions different from those in the first column, giving at column head temp. of at least 20 deg C and a sump. temp. of 220 deg C max, to remove the NH3 and some (A), leaving a residue; (d) distillation in a third column, of the residue (which contains ADN, HMD, ACN, HMI and (A) at 10-220 deg C and 0.1-2 bar, (opt. in the presence of an inert substance (B) that boils at 50-220 deg C at 0.3 bar) to remove (A) for return to the second column, leaving a residue; (e) distillation in a fourth column, of the residue (which contains ADN, HMD, ACN, HMI and opt. (B)) at 100-220 deg C and 10-500 mbar to give a head fraction KPI (contg. HMD, HMI and opt. (B) and a residue (R4); (f) distillation of KPI in a fifth column at 100-220 deg C and 50-2000 mbar, to give a head fraction KP2 (contg. HMI and opt. (B)) which is returned to column 3 or partly returned and partly removed, and a residue comprising 95% HMD; and (g) the residue (R4) from the fourth column, contg. ACN and (I), is distilled in a sixth column at 100-220 deg C and 1-500 mbar to give a head product contg. 95% ACN and a residue (R2) contg. ADN); (h) cyclising. Also claimed is a process for the simultaneous separation of HDM and ACN for (M) by steps (b)-(g).

    Process for obtaining caprolactam from polymers containing caprolactam and apparatus for making the same

    公开(公告)号:CZ288486B6

    公开(公告)日:2001-06-13

    申请号:CZ176397

    申请日:1995-12-01

    Applicant: BASF AG

    Abstract: The invented process for obtaining caprolactam from polymers containing caprolactam in the presence of overheated water is characterized in that polymers, containing a repeating unit -/N(H)-(CHi2)i5-C(O)-/- containing 40 to 99.99 percent by weight of polymers that contain a repeating unit -/N(H)- (CHi2)i5-C(O)-/-, further 0.01 to 50 percent by weight of additives being selected from a group comprising filling agents, organic and inorganic pigments and dyes, up to 10 percent by weight of organic and/or inorganic additives, up to 40 percent by weight of polymers that are free of polyamides, up to 60 percent by weight of polyamides except for polycaprolactam and copolyamides prepared on the basis of caprolactam, are brought into contact with overheated water with temperature of 280 to 320 degC at pressure of 7.5 to 15 MPa, at weight ratio of water to the polymer with the repeating unit -/N(H)- (CHi2)i5-C(O)-/- 5:1 to 13:1 and for reaction time within the range of 15 to 90 minutes so that reaction mixture consists of water and the used polymer or of used mixture without gaseous phase. Apparatus for making the above-described process consists of a melting unit (1) that is connected with a hydrolysis reactor (2) for mixing and execution of hydrolysis, whereby the hydrolysis reactor (2) is connected with a device for release of pressure and with a separation unit (4).

    Process for simultaneously preparing caprolactam and hexamethylenediamine

    公开(公告)号:CZ289886B6

    公开(公告)日:2002-04-17

    申请号:CZ202797

    申请日:1995-12-22

    Applicant: BASF AG

    Abstract: Disclosed is a process for simultaneously preparing caprolactam and hexamethylenediamine from adiponitrile. The invented preparation process is characterized by (a) partial hydrogenation of adiponitrile, (b) subjecting the obtained mixture to distillation to obtain a portion of ammonia as a top product and a heavy fraction I, whereby distillation is carried out in the presence of an inert compound A, (c) subjecting the heavy fraction I to a second distillation to obtain a mixture of the inert compound A and ammonia as a top product and a heavy fraction II, (d) subjecting the heavy fraction II to another distillation to obtain the inert compound A as a top product and a heavy fraction III, whereby the distillation is optionally carried out in the presence of a compound B, (e) subjecting the heavy fraction to distillation to obtain a top product KP1 and a heavy fraction IV, (f) subjecting the KP1 top to distillation to obtain a top product KP2 and a heavy fraction V, whereby the se KP2 top product is supplied at least partially to a third column and the residue is discharged, and (g) subjecting the heavy fraction IV to distillation in order to obtain 6-aminocapronitrile as a top product with adiponitrile at the column bottom, and so obtained 6-aminocapronitrile is then recycled to caprolactam.

    PROCESS OF OBTAINING CAPROLACTAM FROM A POLYMER CONTAINING CAPROLACTAM AND APPARATUS FOR MAKING THE SAME

    公开(公告)号:CZ176397A3

    公开(公告)日:1998-06-17

    申请号:CZ176397

    申请日:1995-12-01

    Applicant: BASF AG

    Abstract: Caprolactam is obtained from caprolactam-containing polymers in the presence of superheated water by bringing polymers which contain the repeating unit -[-N(H)-(CH2)5-C(O)-]- or mixtures consisting essentially of -from 40 to 99.9% by weight of a polymer containing the repeat- - ing unit -[-N(H)-(CH2)5-C(O)-]-, -from 0.01 to 50% by weight of additives selected from the group - consisting of inorganic fillers, organic and - inorganic pigments and dyes, -from 0 to 10% by weight of organic and/or inorganic - additives, -from 0 to 40% by weight of non-polyamide-containing - polymers and -from 0 to 60% by weight of polyamides, with the exception of - polycaprolactam and copolyamides prepared - from caprolactam, - into contact with superheated water at from 280 DEG to 320 DEG C. and from 7.5 to 15 MPa and a weight ratio of water to polymer containing the repeating unit -[-N(H)-(CH2)5-C(O)-]- of from 5:1 to 13:1 and in a reaction time of less than 3 hours, with the proviso that the reaction mixture, consisting essentially of water and the polymer used or the mixture used, contains no gaseous phase under the conditions of the hydrolysis.

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