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    • 2. 发明申请
    • CATALYZED HYDROXYLAMINE PREPARATION
    • 催化羟基胺的制备
    • WO2012143332A1
    • 2012-10-26
    • PCT/EP2012/056925
    • 2012-04-16
    • DSM IP Assets B.V.GROOTHAERT, Marijke Hilde LeenTINGE, Johan ThomasGUIT, Rudolf Philippus Maria
    • GROOTHAERT, Marijke Hilde LeenTINGE, Johan ThomasGUIT, Rudolf Philippus Maria
    • C01B21/14
    • C01B21/1418B01J21/08B01J23/44B01J23/54
    • Method for preparing hydroxylamine in a continuous process, comprising hydrogenating nitrate in a reaction zone comprising a liquid phase, a gas phase and a heterogeneous hydrogenation catalyst, in which reaction zone hydroxylamine and nitrous oxide (N20) are formed, characterized in that the nitrous oxide concentration in the gas phase, is monitored and is maintained within a pre¬ determined range by means of controlled addition of a promoter for the heterogeneous hydrogenation catalyst and/or controlled addition of further amounts of heterogeneous hydrogenation catalyst to the reaction zone until the total amount of catalyst present reaches a pre-determined upper limit; and then (i) withdrawing a fraction of the heterogeneous hydrogenation catalyst from the reaction zone; and (ii) adding one or more further doses of heterogeneous hydrogenation catalyst until the total amount of catalyst present is at most at said pre-determined upper limit; and (iii) optionally repeating steps (i) and (ii); a method for producing an oxime and a method for producing a lactam comprising said process for producing hydroxylamine.
    • 在连续方法中制备羟胺的方法,包括在包含液相,气相和异相氢化催化剂的反应区中使硝酸盐氢化,其中反应区羟胺和一氧化二氮(N 2 O)形成,其特征在于一氧化二氮 监测气相中的浓度,并通过控制加入非均相加氢催化剂的促进剂和/或向反应区域控制加入另外量的非均相氢化催化剂,将其保持在预定范围内,直到总量 的催化剂存在达到预定的上限; 然后(i)从反应区抽出一部分异相氢化催化剂; 和(ii)加入一种或多种另外的非均相氢化催化剂剂量,直到催化剂的总量至多在所述预定的上限值为止; 和(iii)任选地重复步骤(i)和(ii); 制备肟的方法和制备内酰胺的方法,包括所述羟胺的制备方法。
    • 5. 发明申请
    • CYCLOHEXANONE PRODUCTION PROCESS WITH MODIFIED POST-DISTILLATION
    • 具有改性后蒸馏的环辛砜生产工艺
    • WO2009080621A1
    • 2009-07-02
    • PCT/EP2008/067635
    • 2008-12-16
    • DSM IP ASSETS B.V.HORSELS, MarleenPARTON, Rudy Francois Maria JozefTINGE, Johan Thomas
    • HORSELS, MarleenPARTON, Rudy Francois Maria JozefTINGE, Johan Thomas
    • C07C45/82C07C49/403B01J10/00C07C29/48C07C45/00C07C45/29C07C51/00C07C55/14C07C35/08C08F232/00
    • C07C29/50C07C45/006C07C45/82C07C51/00C07C2601/14C07C49/403C07C55/14C07C35/08
    • The present invention relates to a method for continuously preparing cyclohexanone from phenol making use of a catalyst comprising at least one catalytically active metal selected from platinum and palladium comprising a) hydrogenating phenol to form a product stream comprising cyclohexanone and unreacted phenol; b) separating at least part of the product stream, or at least part of the product stream from which one or more components having a lower boiling point than cyclohexanone have been removed, into a first fraction comprising cyclohexanone and a second fraction comprising phenol and cyclohexanol, using distillation; c) separating the second fraction into a third fraction, rich in cyclohexanol, and a fourth fraction, rich in phenol and, using distillation; d) subjecting at least part of the fourth fraction to a further distillation step, thereby forming a fifth fraction and a sixth fraction, wherein the fifth fraction is enriched in phenol compared to the sixth fraction, and wherein the sixth fraction comprises side-products having a higher boiling point than phenol, and phenol, wherein step d) is carried out in a vacuum distillation column equipped with trays in the lower part of the column, and wherein in the upper part of the column, i.e. in the part above the feed inlet, packing material is present instead of trays in at least part of said upper part, which packing material has a comparable or improved separating efficiency, and provides a reduction of the pressure drop by at least 30%, preferably more than 50%, as compared to the case with trays in the upper part, under otherwise similar distillation conditions.
    • 本发明涉及使用包含至少一种选自铂和钯的催化活性金属的催化剂从苯酚连续制备环己酮的方法,其包括:a)氢化苯酚以形成包含环己酮和未反应苯酚的产物流; b)将至少部分产物流或至少部分产物流从其中除去一个或多个沸点低于环己酮的组分的产物流转化成包含环己酮的第一馏分和包含苯酚和环己醇的第二馏分 ,使用蒸馏; c)将第二级分分离成富含环己醇的第三馏分和富含苯酚的第四级分,并使用蒸馏; d)使至少部分第四馏分进一步蒸馏步骤,从而形成第五馏分和第六馏分,其中与第六馏分相比,第五馏分富含苯酚,其中第六馏分包含具有 比苯酚高的沸点和苯酚,其中步骤d)在柱的下部配备有塔板的真空蒸馏塔中进行,并且其中在塔的上部,即在进料的上方的部分 入口,包装材料代替所述上部的至少一部分中的托盘,该填充材料具有相当或改进的分离效率,并且将压降降低至少30%,优选大于50%,如 与上部托盘的情况相比,在相似的蒸馏条件下。
    • 7. 发明申请
    • CYCLOHEXANONE PRODUCTION PROCESS WITH MULTIPLE POST-DISTILLATION
    • 具有多次后蒸馏的环辛砜生产工艺
    • WO2009080620A1
    • 2009-07-02
    • PCT/EP2008/067632
    • 2008-12-16
    • DSM IP Assets B.V.DORTMONT, VAN, Godefridus MariaHORSELS, MarleenPARTON, Rudy Francois Maria JozefTINGE, Johan Thomas
    • DORTMONT, VAN, Godefridus MariaHORSELS, MarleenPARTON, Rudy Francois Maria JozefTINGE, Johan Thomas
    • C07C45/82C07C29/48C07C45/00C07C45/29C07C51/00B01J10/00C08F232/00C07C49/403C07C55/14C07C35/08
    • C07C29/50C07C45/006C07C45/82C07C51/00C07C2601/14C07C49/403C07C55/14C07C35/08
    • The present invention relates to a method for continuously preparing cyclohexanone from phenol making use of a catalyst comprising at least one catalytically active metal selected from platinum and palladium comprising hydrogenating phenol to form a product stream comprising cyclohexanone and unreacted phenol; separating at least part of the product stream, or at least part of the product stream from which one or more components having a lower boiling point than cyclohexanone have been removed, into a first fraction comprising cyclohexanone and a second fraction comprising phenol and cyclohexanol, using distillation; separating the second fraction into a third fraction, rich in cyclohexanol, and a fourth fraction, rich in phenol, using distillation; - subjecting at least part of the fourth fraction to a further distillation step, thereby forming a fifth fraction and a sixth fraction, wherein the fifth fraction is enriched in phenol compared to the sixth fraction, and wherein the sixth fraction comprises side-products having a higher boiling point than phenol, and phenol; and which method is characterized in the additional step of continuously or intermittently separating at least part of the sixth fraction to yet a further distillation step, thereby forming a seventh fraction and an eight fraction, wherein the seventh fraction is enriched in phenol compared to the eight fraction, and wherein the eight fraction comprises side-products having a higher boiling point than phenol.
    • 本发明涉及使用包含至少一种选自铂和钯的催化活性金属的催化剂从苯酚连续制备环己酮的方法,所述催化活性金属包括氢化苯酚以形成包含环己酮和未反应苯酚的产物流; 将至少部分产物流或至少部分产物流从其中除去一个或多个沸点低于环己酮的组分的产物流转化成包含环己酮的第一馏分和包含苯酚和环己醇的第二馏分,使用 蒸馏; 将第二馏分分离成富含环己醇的第三馏分和富含苯酚的第四馏分,使用蒸馏; 将至少部分第四馏分进行进一步的蒸馏步骤,从而形成第五馏分和第六馏分,其中与第六馏分相比,第五馏分富含苯酚,其中第六馏分包含具有 沸点高于苯酚,苯酚; 并且该方法的特征在于连续或间歇地将至少部分第六馏分分离成另外的蒸馏步骤,从而形成第七馏分和八馏分的附加步骤,其中第七馏分富含苯酚,与八 馏分,其中八馏分包含沸点高于苯酚的副产物。
    • 10. 发明申请
    • PROCESS FOR PREPARING CRYSTALLINE AMMONIUM SULFATE PRODUCT
    • 制备硫酸亚铁铵产品的方法
    • WO2014044593A1
    • 2014-03-27
    • PCT/EP2013/068920
    • 2013-09-12
    • DSM IP ASSETS B.V.
    • TINGE, Johan ThomasEKKELENKAMP, GeertVONK, Pieter
    • C01C1/248B01D9/00C05C3/00
    • C01C1/248B01D9/0031B01D9/0036B01D9/0063C01C1/24C05C3/005
    • The invention relates to a process for preparing a crystalline ammonium sulfate product, which process comprises: a) subjecting in a crystallizer a feed solution of ammonium sulfate to crystallization to form a first slurry of ammonium sulfate crystals; b) subjecting the first slurry of ammonium sulfate crystals to a first size classification to yield a first coarse ammonium sulfate crystal fraction and a first fine ammonium sulfate crystal fraction; c) recycling at least part of the first fine ammonium sulfate crystal fraction to the feed solution of ammonium sulfate; and d) recovering a crystalline ammonium sulfate product from the first coarse ammonium sulfate crystal fraction, characterized in that: e) a second size classification is carried out on a second slurry of ammonium sulfate crystals to yield a second coarse ammonium sulfate crystal fraction and a second fine ammonium sulfate crystal fraction.
    • 本发明涉及一种制备结晶硫酸铵产物的方法,该方法包括:a)在结晶器中使硫酸铵的进料溶液结晶以形成硫酸铵晶体的第一浆料; b)使硫酸铵晶体的第一浆料进行第一尺寸分级,以产生第一粗硫酸铵晶体级分和第一细小硫酸铵晶体级分; c)将至少部分第一细小硫酸铵结晶部分再循环到硫酸铵的进料溶液中; 和d)从所述第一粗硫酸铵晶体级分回收结晶硫酸铵产物,其特征在于:e)在硫酸铵晶体的第二浆料上进行二次分级,得到第二粗硫酸铵晶体级分和 第二细小的硫酸铵结晶部分。