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    Method of obtaining caprolactam by hydrolytic splitting of molten polycaprolactam
    181.
    发明专利
    Method of obtaining caprolactam by hydrolytic splitting of molten polycaprolactam 未知

    公开(公告)号：AU4300996A

    公开(公告)日：1996-07-03

    申请号：AU4300996

    申请日：1995-12-01

    Applicant: BASF AG

    Inventor： BASSLER PETER ,  KOPIETZ MICHAEL

    IPC: B03B9/06 ,  C07D201/12 ,  C08J11/14

    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.

    Method for producing epoxide
    182.
    发明专利
    Method for producing epoxide 未知

    公开(公告)号：TH55985A

    公开(公告)日：2012-03-06

    申请号：TH0201071570

    申请日：2002-02-05

    Applicant: BASF AG

    Inventor： BASSLER PETER ,  REHFINGER ALWIN ,  TELES JOAQUIM HENRIQUE ,  BERG ANNE ,  RIEBER NORBERT ,  RUDOLF PETER

    IPC: C07D301/12 ,  C07D301/19 ,  C07D301/32

    Abstract: An organic compound having at least one C-C double bond is epoxidized by means of hydrogen peroxide in the presence of at least one catalytically active compound and at least one solvent, wherein a product mixture comprising alpha-hydroperoxyalcohols is reduced using at least one reducing agent. The process advantageously comprises at least the following steps: (i) reacting an organic compound having at least one C-C double bond with hydrogen peroxide in the presence of at least one catalytically active compound and at least one solvent to give a product mixture P1 comprising alpha-hydroperoxyalcohols; (ii) separating an epoxide formed in the reaction in step (i) and the unreacted organic compound having at least one C-C double bond from P1 or P1' to give a product mixture P2 or P2', where P2 comprises the alpha-hydroperoxyalcohols formed as by-product in the reaction in step (i) and P2' is largely free of alpha-hydroperoxyalcohols; (iii) treating P1 and/or P2 with at least one reducing agent so that the alpha-hydroperoxyalcohols are converted into corresponding glycols to give a product mixture P1' or P3.

    تحضير أكسيد بروبيلين
    185.
    发明专利
    تحضير أكسيد بروبيلين 未知

    公开(公告)号：SA2114B1

    公开(公告)日：2008-11-17

    申请号：SA04250079

    申请日：2004-04-14

    Applicant: BASF AG

    Inventor： GOBBEL HANS GEORG ,  BASSLER PETER ,  TELES JOAQUIM HENRIQUE ,  RUDOLF PETER

    IPC: C07D301/12 ,  C07D303/04

    Abstract: الملخص: عمليةلتحضيرأكسيدالبروبيلينpropylene oxide،وتتضمنعلىالأقلعلىالخطوات (iii) و (iii) (iv) فصلأكسيدالبروبيلين propylene oxide عنخليط (Ml) يتضمنعلىاكسيدالبروبيلين propylene oxide ومذيبواحدعلىالأقلبواسطةالتقطيرفيعمودتقطير،ممايعطيتيارسفليوتياربخارييتكونأساسامنأكسيدالبروبيلين propylene oxide؛(iv) ضغطالتيارالبخاريالذيتمالحصولعليهفي (iii) بواسطةوحدةضغطواحدةعلىالأقللإنتاجبخارمضغوط compressed vapor

    189.
    发明专利
    未知

    公开(公告)号：BRPI0507197A

    公开(公告)日：2007-06-26

    申请号：BRPI0507197

    申请日：2005-01-27

    Applicant: BASF AG

    Inventor： JUNGKAMP TIM ,  BAUMANN ROBERT ,  BARTSCH MICHAEL ,  HADERLEIN GERD ,  LUYKEN HERMANN ,  SCHEIDEL JENS ,  AECHTNER TOBIAS ,  PFAB PETER ,  DECKERT PETRA ,  SIEGEL WOLFGANG ,  BASSLER PETER

    IPC: C07C253/10 ,  C07C255/07

    Abstract: A process is described for preparing 3-pentenenitrile, characterized by the following process steps: (a) isomerizing a reactant stream which comprises 2-methyl-3-butenenitrile over at least one dissolved or dispersed isomerization catalyst to give a stream 1 which comprises the at least one isomerization catalyst, 2-methyl-3-butenenitrile, 3-pentenenitrile and (Z)-2-methyl-2-butenenitrile, (b) distilling stream 1 to obtain a stream 2 as the top product which comprises 2-methyl-3-butenenitrile, 3-pentenenitrile and (Z)-2-methyl-2-butenenitrile, and a stream 3 as the bottom product which comprises the at least one isomerization catalyst, (c) distilling stream 2 to obtain a stream 4 as the top product which, compared to stream 2, is enriched in (Z)-2-methyl-2-butenenitrile, based on the sum of all pentenenitriles in stream 2, and a stream 5 as the bottom product which, compared to stream 2, is enriched in 3-pentenenitrile and 2-methyl-3-butenenitrile, based on the sum of all pentenenitriles in stream 2, (d) distilling stream 5 to obtain a stream 6 as the bottom product which comprises 3-pentenenitrile and a stream 7 as the top product which comprises 2-methyl-3-butenenitrile.

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