公开(公告)号：US5831124A

公开(公告)日：1998-11-03

申请号：US798138

申请日：1997-02-12

申请人： Otto Machhammer ,  Albrecht Dams ,  Bernd Eck ,  Theo Proll

发明人： Otto Machhammer ,  Albrecht Dams ,  Bernd Eck ,  Theo Proll

IPC分类号： C07C57/04 ,  C07C51/43 ,  C07C57/05 ,  C07C57/07 ,  C07C51/42

CPC分类号： C07C51/43

摘要： Acrylic acid or methacrylic acid is purified by (a) subjecting a mixture comprising the acrylic acid or methacrylic acid to a sharply defined separation process essentially in the absence of an organic solvent, with the composition of the phase in which the acrylic acid or methacrylic acid accumulates remaining essentially constant when the composition of the other phases participating in the mass transfer changes, then taking off this phase and (b) subjecting at least a part of the remaining phase from stage(a) to a less sharply defined separation process and (c) feeding one of the phases formed in stage (b) to the sharply defined separation process in stage (a). In addition, the invention provides a process for preparing acrylic acid or methacrylic acid which includes the abovementioned purification process.

摘要翻译： 丙烯酸或甲基丙烯酸通过（a）基本上在不存在有机溶剂的情况下对包含丙烯酸或甲基丙烯酸的混合物进行急剧定义的分离过程来纯化，其中丙烯酸或甲基丙烯酸 当参与质量传递的其它相的组成发生变化时，剩下的基本上保持恒定，然后脱除该相，和（b）使来自阶段（a）的剩余相的至少一部分经受较不明确的分离过程和（ c）在步骤（a）中将阶段（b）中形成的相中的一个进料加入到明确限定的分离过程中。 此外，本发明提供一种制备丙烯酸或甲基丙烯酸的方法，其包括上述纯化方法。

公开(公告)号：US06646161B1

公开(公告)日：2003-11-11

申请号：US09508077

申请日：2000-03-13

申请人： Bernd Eck ,  Otto Machhammer ,  Theo Proll ,  Volker Schliephake ,  Joachim Thiel ,  Klaus Bröllos

发明人： Bernd Eck ,  Otto Machhammer ,  Theo Proll ,  Volker Schliephake ,  Joachim Thiel ,  Klaus Bröllos

IPC分类号： C07C5142

CPC分类号： B01D5/003 ,  C07C51/44 ,  C07C57/04

摘要： 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.

摘要翻译： 一种除丙烯酸或甲基丙烯酸之外还含有至少一种其它可冷凝组分和另外高比例的一种或多种不可冷凝组分的气体混合物的分级冷凝的方法，其中气体混合物通过柱 具有分离内件和可冷凝组分通过冷却而冷凝。

公开(公告)号：US06448439B1

公开(公告)日：2002-09-10

申请号：US09508084

申请日：2000-03-13

申请人： Bernd Eck ,  Otto Machhammer ,  Theo Proll ,  Volker Schliephake ,  Joachim Thiel ,  Klaus Bröllos

发明人： Bernd Eck ,  Otto Machhammer ,  Theo Proll ,  Volker Schliephake ,  Joachim Thiel ,  Klaus Bröllos

IPC分类号： C07C5142

CPC分类号： C07C51/43 ,  C07C57/04

摘要： A process for preparing acrylic acid or methacrylic acid comprises preparing a gaseous product mixture having essentially the composition of a reaction mixture of the catalytic gas phase oxidation of C3-/C4-alkanes, -alkenes, -alkanols and/or -alkanals and/or precursors thereof to form acrylic acid or methacrylic acid. The product is removed from the gaseous product mixture by a process comprising the following steps: (a) condensing said gaseous product mixture, (b) crystallizing acrylic acid or methacrylic acid from the solution obtained in step (a), (c) removing the resulting crystals from the mother liquor, and (d) recycling at least a portion of said mother liquor from step (c) into step (a).

摘要翻译： 制备丙烯酸或甲基丙烯酸的方法包括制备气态产物混合物，其基本上具有C3- / C4-烷烃， - 烯烃， - 链烷醇和/或 - 烷烃和/或 - 烷烃的催化气相氧化反应混合物的组成和/或 其前体形成丙烯酸或甲基丙烯酸。 通过包括以下步骤的方法从气态产物混合物中除去产物：（a）冷凝所述气态产物混合物，（b）从步骤（a）中获得的溶液中结晶丙烯酸或甲基丙烯酸，（c） 从母液中得到的晶体，和（d）将来自步骤（c）的所述母液的至少一部分再循环到步骤（a）中。

公开(公告)号：US06433222B1

公开(公告)日：2002-08-13

申请号：US09764985

申请日：2001-01-22

申请人： Bernd Eck ,  Jörg Heilek ,  Volker Schliephake ,  Theo Proll ,  Klaus Bröllos ,  Otto Machhammer ,  Joachim Thiel

发明人： Bernd Eck ,  Jörg Heilek ,  Volker Schliephake ,  Theo Proll ,  Klaus Bröllos ,  Otto Machhammer ,  Joachim Thiel

IPC分类号： C07C5142

CPC分类号： C07C51/43 ,  C07C57/04

摘要： A process for the preparation of acrylic acid by: (a) preparation of a gaseous product mixture which essentially has the composition of a reaction mixture of catalytic gas-phase oxidation of C3-alkanes, C3-alkenes, C3-alkanols and/or C3-alkanals and/or intermediates thereof to acrylic acid, which comprises (b) condensation of the gaseous product mixture, (c) crystallization of the acrylic acid from the solution obtained in stage (b), with partial evaporation of the solution under reduced pressure, (d) isolation of the resulting crystals from the mother liquor, (e) recycling of at least a part of the mother liquor from stage (d) to stage (b) and (f) recycling of at least a part of the evaporated solution from stage (c) to stage (b).

摘要翻译： 一种通过以下方法制备丙烯酸的方法：（a）制备气态产物混合物，其基本上具有C3-烷烃，C3-烯烃，C3-链烷醇和/或C3的催化气相氧化反应混合物的组成 - 烷醇和/或其中间体，其包括（b）气态产物混合物的冷凝，（c）丙烯酸从阶段（b）中获得的溶液中的结晶，在减压下部分蒸发溶液 ，（d）从母液中分离得到的晶体，（e）将至少一部分母液从阶段（d）再循环到阶段（b），和（f）将至少一部分蒸发的 从（c）阶段到（b）阶段的方案。

公开(公告)号：US06596901B1

公开(公告)日：2003-07-22

申请号：US09147484

申请日：1999-01-08

申请人： Bernd Eck ,  Otto Machhammer ,  Theo Proll ,  Volker Schliephake ,  Klaus Joachim Müller-Engel

发明人： Bernd Eck ,  Otto Machhammer ,  Theo Proll ,  Volker Schliephake ,  Klaus Joachim Müller-Engel

IPC分类号： C07C5142

CPC分类号： C07C51/43 ,  C07C57/04

摘要： A process for preparing acrylic acid or methacrylic acid comprises (a) preparing a gaseous product mixture having essentially the composition of a reaction mixture of the catalytic gas phase oxidation of C3-/C4-alkanes, -alkenes, -alkanols and/or -alkanals and/or precursors thereof to form acrylic acid or methacrylic acid, characterized by (b) condensing said product mixture, (c) crystallizing acrylic acid or methacrylic acid from the solution obtained in step (b), and (d) removing the resulting crystals from the mother liquor.

摘要翻译： 制备丙烯酸或甲基丙烯酸的方法包括（a）制备气态产物混合物，其基本上具有C3- / C4-烷烃， - 烯烃， - 烷醇和/或 - 烷烃的催化气相氧化反应混合物的组成 和/或其前体以形成丙烯酸或甲基丙烯酸，其特征在于（b）冷凝所述产物混合物，（c）从步骤（b）中获得的溶液中结晶丙烯酸或甲基丙烯酸，和（d）除去所得晶体 从母酒。

公开(公告)号：US07348443B2

公开(公告)日：2008-03-25

申请号：US10482191

申请日：2002-06-21

申请人： Theo Proll ,  Otto Machhammer ,  Goetz-Peter Schindler ,  Klaus Joachim Mueller-Engel

发明人： Theo Proll ,  Otto Machhammer ,  Goetz-Peter Schindler ,  Klaus Joachim Mueller-Engel

IPC分类号： C07D301/06

CPC分类号： C07C45/33 ,  B01J27/199 ,  C07C45/35 ,  C07C47/22

摘要： Partial oxidation products and/or ammoxidation products of an olefinic hydrocarbon A′ are prepared by a process in which said olefinic hydrocarbon is produced during normal operation by partial dehydrogenation and/or oxydehydrogenation of hydrocarbon A and fed in from another source during partial or complete nonoperation of the dehydrogenation and/or oxydehydrogenation.

摘要翻译： 通过一种方法制备烯烃A'的部分氧化产物和/或氨氧化产物，其中在正常操作期间通过部分脱氢和/或烃A的氧化脱氢产生所述烯烃并在部分或完全不操作期间从另一来源进料 的脱氢和/或氧化脱氢。

公开(公告)号：US5817865A

公开(公告)日：1998-10-06

申请号：US779235

申请日：1997-01-03

申请人： Otto Machhammer ,  Toni Dockner ,  Gerd-Jurgen Engert ,  Theo Proll

发明人： Otto Machhammer ,  Toni Dockner ,  Gerd-Jurgen Engert ,  Theo Proll

IPC分类号： B01D9/02 ,  B01D3/00 ,  C07B61/00 ,  C07C51/235 ,  C07C51/25 ,  C07C51/43 ,  C07C51/48 ,  C07C57/04 ,  C07C57/05 ,  C07C57/055 ,  C07C57/07 ,  C07C69/54 ,  C07C67/00 ,  C07C51/16

CPC分类号： C07C51/43 ,  Y02P20/582

摘要： A process for preparing acrylic acid and/or esters comprises the steps of: (a) catalytic gas phase oxidation of propene and/or acrolein to acrylic acid to obtain a gaseous reaction product comprising acrylic acid, (b) solvent absorption of the reaction product, (c) distillation of the solvent loaded with acrylic acid to obtain a crude acrylic acid and the solvent, (d) purification of the crude acrylic acid by crystallization and (e) optionally esterification of the crystalline acrylic acid.

摘要翻译： 制备丙烯酸和/或酯的方法包括以下步骤：（a）将丙烯和/或丙烯醛催化气相氧化成丙烯酸以获得包含丙烯酸的气态反应产物，（b）反应产物的溶剂吸收 ，（c）负载丙烯酸的溶剂的蒸馏以获得粗丙烯酸和溶剂，（d）通过结晶纯化粗丙烯酸，和（e）任意酯化结晶丙烯酸。

公开(公告)号：US08497394B2

公开(公告)日：2013-07-30

申请号：US13566376

申请日：2012-08-03

申请人： Robert Heinz ,  Otto Machhammer ,  Stefan Gropp ,  Alexander Hauk ,  Gerd Diebold ,  Anna Valeska Lohmann ,  Dieter Feuerstein ,  Robert Rühle ,  Rüdiger Schmitt

发明人： Robert Heinz ,  Otto Machhammer ,  Stefan Gropp ,  Alexander Hauk ,  Gerd Diebold ,  Anna Valeska Lohmann ,  Dieter Feuerstein ,  Robert Rühle ,  Rüdiger Schmitt

IPC分类号： C07C53/00

CPC分类号： C07C53/06 ,  A23K20/105 ,  A23K20/22 ,  A23K30/00 ,  A23K30/15 ,  A23K50/00 ,  A23K50/30 ,  A23K50/75 ,  A23V2002/00 ,  C05F11/00 ,  C07C51/02 ,  C07C51/412 ,  Y02P20/582 ,  A23V2200/06

摘要： The invention relates to a method for producing and using a solid sodium diformate having a high formic acid content, to the use thereof in animal foods in the form of an acidifier, preservatives, ensilage auxiliary agents, fertilizers, and a growth and productivity-stimulating agent and the inventive animal food additives containing sodium diformate.

公开(公告)号：US20130005925A1

公开(公告)日：2013-01-03

申请号：US13483705

申请日：2012-05-30

申请人： Frank Hütten ,  Otto Machhammer ,  Thomas Daniel ,  Markus Ottenbacher ,  Daniel Pfeiffer ,  Stefanie Herzog ,  Manfred Heilig ,  Klaus Joachim Muller-Engel

发明人： Frank Hütten ,  Otto Machhammer ,  Thomas Daniel ,  Markus Ottenbacher ,  Daniel Pfeiffer ,  Stefanie Herzog ,  Manfred Heilig ,  Klaus Joachim Muller-Engel

IPC分类号： C08F222/02 ,  C08G16/02 ,  C08F216/34

CPC分类号： C08G63/81 ,  C07C51/252 ,  C07C51/42 ,  C07C51/47 ,  C07C57/04 ,  Y02P20/582

摘要： An aqueous solution containing 10% by weight of acrylic acid and its conjugate base. The solution further contains, based on the amount of acrylic acid and its conjugate base: at least 50 ppm of propionic acid and its conjugate base; at least 200 ppm of formic acid and its conjugate base; at least 3000 ppm of acetic acid and it conjugate base; at most 10 ppm of benzoic acid and its conjugate base; at most 10 ppm of maleic anhydride, maleic acid, and their conjugate bases; at most 10 ppm of phthalic anhydride, phthalic acid, and their conjugate bases; at most 50 ppm of acrolein; at most 50 ppm of benzaldehyde; at most 50 ppm of 2-furaldehyde; and at least 20 mol % of at least one alkali metal cation. A process for preparing this solution and the use of this solution for preparation of a polymer by free-radical polymerization.

摘要翻译： 含有10重量％丙烯酸及其共轭碱的水溶液。 该溶液还包含基于丙烯酸及其共轭碱的量：至少50ppm丙酸及其共轭碱; 至少200ppm的甲酸及其共轭碱; 至少3000ppm的乙酸及其共轭碱; 至多10ppm的苯甲酸及其共轭碱; 至多10ppm的马来酸酐，马来酸及其共轭碱; 至多10ppm的邻苯二甲酸酐，邻苯二甲酸及其共轭碱; 至多50ppm的丙烯醛; 至多50ppm的苯甲醛; 至多50ppm的2-糠醛; 和至少20摩尔％的至少一种碱金属阳离子。 制备该溶液的方法以及通过自由基聚合制备聚合物的该溶液的用途。

公开(公告)号：US07897812B2

公开(公告)日：2011-03-01

申请号：US11751202

申请日：2007-05-21

申请人： Otto Machhammer ,  Klaus Joachim Mueller-Engel ,  Martin Dieterle

发明人： Otto Machhammer ,  Klaus Joachim Mueller-Engel ,  Martin Dieterle

IPC分类号： C07C51/16 ,  C07B41/00

CPC分类号： C07C45/35 ,  C07C45/33 ,  C07C51/215 ,  C07C51/252 ,  C07C47/22 ,  C07C57/04

摘要： A process for preparing acrolein or acrylic acid or a mixture thereof as the target product from propane, in which propane is partially dehydrogenated under heterogeneous catalysis in a reaction zone A, molecular hydrogen formed is at least partly combusted to water, any water present in the product gas A formed in reaction zone A is removed therefrom and product gas A is otherwise used to charge a reaction zone B in which propylene formed in reaction zone A is partially oxidized in the presence of remaining propane to give the target product. The target product is removed from the product gas B formed in reaction zone B and propane present in the remaining residual gas is absorbed therefrom into a solvent and, after release from the absorbate, recycled into reaction zone A.

摘要翻译： 制备丙烯醛或丙烯酸或其混合物的方法作为丙烷的目标产物，其中丙烷在反应区A中在非均相催化下部分脱氢，形成的分子氢至少部分地燃烧到水中，存在于 在反应区A中形成的产物气体A被除去，产物气体A另外用于给反应区B充电，其中反应区A中形成的丙烯在剩余的丙烷存在下被部分氧化，得到目标产物。 将目标产物从反应区B中形成的产物气体B中除去，剩余的残余气体中存在的丙烷从其中吸收到溶剂中，并且在从吸收物质释放后再循环到反应区A中。