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    СПОСОБ ПОЛУЧЕНИЯ БУТАДИЕНА
    41.
    发明专利
    СПОСОБ ПОЛУЧЕНИЯ БУТАДИЕНА 未知

    公开(公告)号：EA009786B1

    公开(公告)日：2008-04-28

    申请号：EA200601233

    申请日：2004-12-30

    Applicant: BASF AG

    Inventor： JOHANN THORSTEN ,  SCHINDLER GOTZ-PETER ,  BRODHAGEN ANDREAS ,  CRONE SVEN ,  BENFER REGINA ,  HILL THOMAS ,  DUDA MARK

    IPC: C07C5/333 ,  C07C5/48 ,  C07C11/167

    Abstract: Изобретениеотноситсяк способуполучениябутадиенаизн-бутана, включающемутакиестадии: A) подготовкаисходногогазовогопотокаа, содержащегон-бутан; B) подачасодержащегон-бутангазовогопотокаа поменьшеймерев первуюзонудегидрированияи неокислительноекаталитическоедегидрированиен-бутанас получениемпотокагазообразныхпродуктов b, содержащегон-бутан, 1-бутен, 2-бутен, бутадиен, водород, низкокипящиепримесии, принеобходимости, водянойпар; C) подачапотокагазообразныхпродуктов b неокислительногокаталитическогодегидрированияи содержащегокислородгазапоменьшеймеревовторуюзонудегидрированияи окислительноедегидрирование 1-бутенаи 2-бутенас получениемпотокагазообразныхпродуктовс, содержащегон-бутан, 2-бутен, бутадиен, водород, низкокипящиепримесии водянойпар, приэтомв такомпотокегазообразныхпродуктовс содержаниебутадиенавыше, чемв потокегазообразныхпродуктов b; D) отделениеводорода, низкокипящихпримесейи водяногопарас получениемпотокаС-газообразныхпродуктов d, которыйв основномсостоитизн-бутана, 2-бутенаи бутадиена; E) разделениепотока C-газообразныхпродуктов d навозвратныйпотоке1, состоящий, восновном, изн-бутанаи 2-бутена, инапотоке2, состоящий, восновном, избутадиена, путемэкстрактивнойдистилляциии рециркуляциипотокае1 впервуюзонудегидрирования; F) вслучаенеобходимости, подачачастиколичестваиливсегопотокае2, состоящего, восновном, избутадиена, взонуселективногогидрированияи селективноегидрированиебутадиенадо 1- и/или 2-бутенас получениемпотока f, содержащего 1-бутени 2-бутена; G) вслучаенеобходимости, подачапотока f, содержащего 1-бутени 2-бутена, вдистилляционнуюзонуи

    43.
    发明专利
    未知

    公开(公告)号：AT384030T

    公开(公告)日：2008-02-15

    申请号：AT03771072

    申请日：2003-07-23

    Applicant: BASF AG

    Inventor： HILL THOMAS ,  KINDLER KLAUS ,  HEIDA BERND

    IPC: C07C7/08 ,  C07C11/167

    Abstract: Sudstituted the abstract with a new abstract as follows: The invention relates to a continuous process for separation a mixture of hydrocarbons which has beenobtained by extractive distillation of C 4 fraction useing a selective solvent and the hydrocarbons from the fraction C 4 which are more readily soluble in the selective solvent than are the butanes and the butenes. The mixture is fed into a first distillation column in which it is separated into a steam which is taken off at the top and comprises 1,3-butadiene, propyne, possibly further low boilers and possibly water and a bottom stream comprising 1,3-butadiene, 1,2-butadiene, acetylenes and possibly further high boilers, with the proportion of 1,3-butadiene in the bottom stream from the distillatin column being regulated in such a way that it is at least sufficiently high to dilute the acetylenes to outside the range in which there is a risk of spontaneous decomposition. The stream taken off from the top of the first distillation column is fed to a second distillation column and is separated into a steam which is taken off at the top and comprises propyne, possibly further low boilers and possibly water and a bottom stream comprising pure 1,3-butadiene in the second distillation column.

    44.
    发明专利
    未知

    公开(公告)号：DE102005014177A1

    公开(公告)日：2006-10-05

    申请号：DE102005014177

    申请日：2005-03-29

    Applicant: BASF AG

    Inventor： HILL THOMAS ,  MILLER CHRISTIAN

    IPC: C07C5/13 ,  C07C7/04 ,  C07C7/163 ,  C07C11/02

    Abstract: A process is proposed for obtaining a stream of aliphatic hydrocarbons comprising from 5 to 12 carbon atoms per molecule, with an increased proportion of linear alpha-olefins compared to a feed stream of aliphatic hydrocarbons comprising from 5 to 12 carbon atoms per molecule, with a content of linear alpha-olefins, linear internal olefins and dienes, wherein the feed stream is fed to a first distillation zone D 1 having at least 5 theoretical plates, in which the linear alpha-olefins are removed partly or fully as a component of a vapor stream which additionally also comprises the dienes, and at whose lower end a liquid stream is obtained which has been depleted partly or fully of linear alpha-olefins, the liquid stream from the lower end of the first distillation zone D 1 is introduced into a isomerization unit which is equipped with an isomerization catalyst over which the linear internal olefins are isomerized partly or fully to linear alpha-olefins, and the linear alpha-olefins formed in this way are removed as a component of a vapor stream ascending into the first distillation zone D 1, the vapor stream ascending out of the first distillation zone D 1 enters a selective hydrogenation unit in which at least a portion of the dienes are hydrogenated selectively to olefins over a low-isomerization selective hydrogenation catalyst to obtain a vapor stream which is drawn off, condensed fully or partly and drawn off as a product stream with an increased proportion of linear alpha-olefins compared to the feed stream.

    46.
    发明专利
    未知

    公开(公告)号：DE102004049940A1

    公开(公告)日：2006-04-20

    申请号：DE102004049940

    申请日：2004-10-13

    Applicant: BASF AG

    Inventor： STEPHAN JUERGEN ,  BRODHAGEN ANDREAS ,  SCHUBERT MARKUS ,  POPLOW FRANK ,  ROEPER MICHAEL ,  HILL THOMAS

    IPC: C07C11/08 ,  C07C5/11

    Abstract: A C4-olefin mixture having a 1,3-butadiene content of from 100 to 500 ppm and a content of 1,2-dienes of less than 10 ppm is described. The present invention further provides a process for preparing this C4-olefin mixture and provides for its use in a metathesis reaction for preparing 2-pentene and/or 3-hexene.

    48.
    发明专利
    未知

    公开(公告)号：BR0312894A

    公开(公告)日：2005-06-14

    申请号：BR0312894

    申请日：2003-07-23

    Applicant: BASF AG

    Inventor： HILL THOMAS ,  KINDLER KLAUS ,  HEIDA BERND

    IPC: C07C7/08 ,  C07C11/167

    Abstract: Sudstituted the abstract with a new abstract as follows: The invention relates to a continuous process for separation a mixture of hydrocarbons which has beenobtained by extractive distillation of C 4 fraction useing a selective solvent and the hydrocarbons from the fraction C 4 which are more readily soluble in the selective solvent than are the butanes and the butenes. The mixture is fed into a first distillation column in which it is separated into a steam which is taken off at the top and comprises 1,3-butadiene, propyne, possibly further low boilers and possibly water and a bottom stream comprising 1,3-butadiene, 1,2-butadiene, acetylenes and possibly further high boilers, with the proportion of 1,3-butadiene in the bottom stream from the distillatin column being regulated in such a way that it is at least sufficiently high to dilute the acetylenes to outside the range in which there is a risk of spontaneous decomposition. The stream taken off from the top of the first distillation column is fed to a second distillation column and is separated into a steam which is taken off at the top and comprises propyne, possibly further low boilers and possibly water and a bottom stream comprising pure 1,3-butadiene in the second distillation column.

    50.
    发明专利
    未知

    公开(公告)号：DE10350044A1

    公开(公告)日：2005-05-25

    申请号：DE10350044

    申请日：2003-10-27

    Applicant: BASF AG

    Inventor： SCHINDLER GOETZ-PETER ,  BRODHAGEN ANDREAS ,  JOHANN THORSTEN ,  HILL THOMAS ,  SIGL MARCUS ,  BENFER REGINA

    IPC: C07C5/05 ,  C07C5/25 ,  C07C5/333 ,  C07C7/08 ,  C07C11/08 ,  C07C7/04 ,  C07C7/12

    Abstract: A process for preparing 1-butene, which includes nonoxidatively, catalytically dehydrogenating n-butane to obtain a product gas stream of n-butane, 1-butene, 2-butene, butadiene, hydrogen, and secondary constituents; removing hydrogen and the secondary constituents to obtain a C4 product gas stream; separating the C4 product stream into a recycle stream of n-butane and a stream of 1-butene, 2-butene and butadiene by extractive distillation, and recirculating the recycle stream to the dehydrogenation zone; introducing the 1 -butene, 2-butene and butadiene stream into a selective hydrogenation zone and selective hydrogenation of butadiene to 1-butene and/or 2-butene to obtain a stream of 1-butene and 2-butene; introducing the 1-butene and 2-butene stream, and a circulating stream of 1-butene and 2-butene into a distillation zone and isolation of a product stream; and introducing the 2-butene-containing stream into an isomerization zone to obtain a circulating stream of 1-butene and 2-butene, and recirculating the circulating stream to the distillation zone.

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