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    DISTILLATE OF N-VINYLFORMAMIDE
    1.
    发明专利
    DISTILLATE OF N-VINYLFORMAMIDE 失效

    公开(公告)号：JPH1081654A

    公开(公告)日：1998-03-31

    申请号：JP18101797

    申请日：1997-07-07

    Applicant: BASF AG

    Inventor： KROENER MICHAEL ,  SCHMIDT WILLI ,  OFTRING ALFRED ,  PROLL THEO ,  HARTMANN HEINRICH

    IPC: C07C231/24 ,  C07C67/00 ,  C07C231/00 ,  C07C233/00 ,  C07C233/03 ,  C07C233/15 ,  C08F26/00 ,  C08F126/02

    Abstract: PROBLEM TO BE SOLVED: To provide a method for purifying N-vinylformamide capable of producing high-quality N-vinylformamide for making a polymer having especially high molecular weight having a K value by Fikentscher's method larger than 200. SOLUTION: This N-vinylformamide distillate is obtained by fractional distillation of N-formamide using a column under reduced pressure. The distillation is continuously carried out in the presence of formamide under 0.5-30 millibar measured at the top of the column. The distillation is controlled so that N- vinylformamide having 1-6wt.% formamide content as the distillate is obtained to give the objective N-vinylformamide for producing an N-vinylformamide polymer having a K value larger than 200, containing 1-6wt.% formamide.

    Method for purifying mixture obtained through catalytic vapor-phase oxidation of propene and/or acrolein, by separation treatment inducing phase formation
    3.
    发明专利
    Method for purifying mixture obtained through catalytic vapor-phase oxidation of propene and/or acrolein, by separation treatment inducing phase formation 审中-公开
    通过分离处理诱导相形成来净化丙烯和/或丙烯酸的催化蒸气相氧化获得的混合物的方法

    公开(公告)号：JP2007091759A

    公开(公告)日：2007-04-12

    申请号：JP2007003878

    申请日：2007-01-11

    Applicant: Basf Ag ,  ビーエーエスエフ アクチェンゲゼルシャフトBASF Aktiengesellschaft

    Inventor： MACHHAMMER OTTO ,  DAMS ALBRECHT DR ,  ECK BERND ,  PROLL THEO

    IPC: C07C51/43 ,  C07C57/04 ,  C07C51/235 ,  C07C51/25 ,  C07C51/44 ,  C07C57/05 ,  C07C57/07

    CPC classification number: C07C51/43 ,  C07C57/04

    Abstract: PROBLEM TO BE SOLVED: To provide a method for purifying acrylic acid or methacrylic acid, whereby high purity and a high yield of the acid are achieved.
    SOLUTION: (a) A mixture comprising the acrylic acid or methacrylic acid is subjected to a stringently defined separation treatment essentially in the absence of an organic solvent, this phase is then taken off, (b) at least a part of a residual phase from step (a) is subjected to a less stringently defined separation treatment, and (c) one of phases formed in step (b) is fed to the stringently defined separation treatment in step (a). This method offers a possibility that the overall economical efficiency of the treatment is increased through circulation and that the economical efficiency is improved even when static crystallization is omitted.
    COPYRIGHT: (C)2007,JPO&INPIT

    Abstract translation: 要解决的问题：提供一种纯化丙烯酸或甲基丙烯酸的方法，从而实现了高纯度和高收率的酸。 解决方案：（a）包含丙烯酸或甲基丙烯酸的混合物基本上在不存在有机溶剂的情况下进行严格限定的分离处理，然后将该相脱除，（b）至少部分 对步骤（a）的残留相进行较不严格的分离处理，和（c）步骤（b）中形成的一相中的步骤（a）中被严格限定的分离处理。 该方法提供了通过循环增加处理的整体经济效率的可能性，并且即使省略静态结晶也提高了经济效率。 版权所有（C）2007，JPO＆INPIT

    Zpusob výroby kyseliny akrylové a kyseliny methakrylové
    5.
    发明专利
    Zpusob výroby kyseliny akrylové a kyseliny methakrylové 未知

    公开(公告)号：CZ296309B6

    公开(公告)日：2006-02-15

    申请号：CZ7399

    申请日：1997-07-09

    Applicant: BASF AG

    Inventor： ECK BERND ,  MACHHAMMER OTTO ,  PROLL THEO ,  SCHLIEPHAKE VOLKER

    IPC: C07C57/04 ,  C07C51/21 ,  C07C51/43 ,  C07C57/05 ,  C07C57/07

    Abstract: Zpusob prípravy kyseliny akrylové nebo kyseliny methakrylové, který zahrnuje: /a/ prípravu smesi plynných produktu, která má slození reakcní smesi z katalytické oxidace alkanu se 3 nebo 4 atomy uhlíku, alkenu se 3 nebo 4 atomy uhlíku, alkanolu se 3 nebo 4 atomy uhlíku a/nebo alkanalu se 3 nebo 4 atomy uhlíku a/nebo jejich prekurzoru, v plynné fáziza vzniku kyseliny akrylové nebo kyseliny methakrylové, pri kterém se provede /b/ kondenzace uvedené smesi plynných produktu, /c/ krystalizace kyseliny akrylové nebo kyseliny methakrylové z roztoku, získaného ve stupni /b/ a /d/ oddelení výsledných krystalu z matecného louhu.

    6.
    发明专利
    未知

    公开(公告)号：ES2201539T3

    公开(公告)日：2004-03-16

    申请号：ES98950022

    申请日：1998-09-10

    Applicant: BASF AG

    Inventor： ECK BERND ,  MACHHAMMER OTTO ,  PROLL THEO ,  SCHLIEPHAKE VOLKER ,  THIEL JOACHIM ,  BROLLOS KLAUS

    IPC: B01D5/00 ,  C07C51/44 ,  C07C57/07

    Abstract: A process for the fractional condensation of a gas mixture which, in addition to acrylic acid or methacrylic acid, also contains at least one further condensable component and additionally a high proportion of one or more noncondensable components, wherein the gas mixture is passed through a column having separatory internals and the condensable components are condensed by cooling.

    7.
    发明专利
    未知

    公开(公告)号：DE59808713D1

    公开(公告)日：2003-07-17

    申请号：DE59808713

    申请日：1998-09-10

    Applicant: BASF AG

    Inventor： ECK BERND ,  MACHHAMMER OTTO ,  PROLL THEO ,  SCHLIEPHAKE VOLKER ,  THIEL JOACHIM ,  BROELLOS KLAUS

    IPC: B01D5/00 ,  C07C51/44 ,  C07C57/07

    Abstract: A process for the fractional condensation of a gas mixture which, in addition to acrylic acid or methacrylic acid, also contains at least one further condensable component and additionally a high proportion of one or more noncondensable components, wherein the gas mixture is passed through a column having separatory internals and the condensable components are condensed by cooling.

    Production of partial (ammo)oxidation products of an olefinic hydrocarbon, useful for acrolein/acrylic acid from propane, comprises intermittent supplementation of olefin from another source.
    8.
    发明专利
    Production of partial (ammo)oxidation products of an olefinic hydrocarbon, useful for acrolein/acrylic acid from propane, comprises intermittent supplementation of olefin from another source. 未知

    公开(公告)号：DE10131297A1

    公开(公告)日：2003-01-09

    申请号：DE10131297

    申请日：2001-06-29

    Applicant: BASF AG

    Inventor： PROLL THEO ,  MACHHAMMER OTTO ,  SCHINDLER GOETZ-PETER ,  MUELLER-ENGEL KLAUS JOACHIM

    IPC: C07C45/34 ,  B01J27/199 ,  C07B61/00 ,  C07C45/33 ,  C07C45/35 ,  C07C47/22 ,  C07C51/235 ,  C07C57/055 ,  C07C253/26 ,  C07C255/08 ,  C07B41/00 ,  C07B43/04 ,  C07C45/28 ,  C07C57/04

    Abstract: Production of partial oxidation products and/or partial ammoxidation products of an olefinic hydrocarbon comprises intermittent operation in a non-operational phase by at least partial non-operation of the dehydration stage whereby the oxidation- and/or ammoxidation zone is continued to be operated and the deficiency in olefinic hydrocarbon feedstock is compensated by another source. A process for the production of partial oxidation products and/or partial ammoxidation products of at least one olefinic hydrocarbon (I) comprises (A) partial dehydration and/or oxy-dehydration of a paraffinic hydrocarbon in a first reaction zone to form a product mixture comprising unreacted paraffinic hydrocarbon and olefinic hydrocarbon (I). (B) separation of the product mixture from (A) into paraffinic and olefinic components optionally in a separation zone and feeding of either the olefinic or paraffinic component to an oxidation and/or ammoxidation zone to form at least one partial oxidation and/or ammoxidation product that contains an olefinic hydrocarbon (I). (C) separation of the product mixture from (B) in a processing zone and recycle of at least a portion of unreacted paraffinic hydrocarbon to the reaction zone of step (A) and (D) from time to time in a non-operational phase at least partial non-operation of the first reaction zone whereby the oxidation- and/or ammoxidation zone (B) is continued to be operated and the deficiency in olefinic hydrocarbon feedstock is at least partially compensated by another source of olefinic hydrocarbon and optionally paraffinic hydrocarbon arising from sources other than reaction zone (A) is at least partially recycled to the oxidation and/or ammoxidation zone (B).

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