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11. 发明申请

US20080207954A1 Method for Producing Polyoxymethylene Dimethyl Ethers From Methanol and Formaldehyde 失效
公开(公告)号：US20080207954A1
公开(公告)日：2008-08-28
申请号：US11917528
申请日：2006-06-12
申请人： Eckhard Stroefer , Hans Hasse , Sergej Blagov
发明人： Eckhard Stroefer , Hans Hasse , Sergej Blagov
IPC分类号： C07C41/09
CPC分类号： C07C41/48 , C07C41/56 , C07C41/58 , C08G2/08 , C07C43/30
摘要： A process for preparing tri- and tetraoxymethylene glycol dimethyl ether (POMDMEn=3,4) by reacting formaldehyde with methanol and subsequently working up the reaction mixture by distillation, comprising the steps of: a) feeding aqueous formaldehyde solution and methanol into a reactor and reacting; b) feeding the reaction mixture a into a reactive evaporator and separating into a low boiler fraction b1 comprising formaldehyde, water, methanol, methylene glycol, polyoxymethylene glycols, hemiformals, methylal and polyoxymethylene glycol dimethyl ethers (POMDMEn>1), and a high boiler fraction b2, and recycling the high boiler fraction b2 into the reactor (step a)); c) feeding the low boiler fraction b1 into a first distillation column and separating into a low boiler fraction c1 comprising formaldehyde, water, methylene glycol, methanol, hemiformals, methylal, di-, tri- and tetraoxymethylene glycol dimethyl ether (POMDMEn=2,3,4), and a high boiler fraction c2, and recycling the high boiler fraction c2 into the reactive evaporator (step b)); d) feeding the low boiler fraction c1 into a second distillation column and separating into a low boiler fraction d1 and a high boiler fraction d2 consisting of formaldehyde, water, methylene glycol, polyoxymethylene glycols, tri- and tetraoxymethylene glycol dimethyl ether (POMDMEn=3,4); e) feeding the high boiler fraction d2 into a phase separation apparatus and separating into an aqueous phase e1 consisting of formaldehyde, water, methylene glycol and polyoxymethylene glycols, and an organic phase e2 comprising tri- and tetraoxymethylene glycol dimethyl ether (POMDMEn=3,4); f) feeding the organic phase e2 into a third distillation column and separating into a low boiler fraction f1 consisting of formaldehyde, water, methylene glycol and polyoxymethylene glycols, and a high boiler fraction f2 consisting of tri- and tetraoxymethylene glycol dimethyl ether (POMDMEn=3,4).

12. 发明授权

US07414159B2 Separation of liquid mixtures in a film evaporator 失效
标题翻译：在薄膜蒸发器中分离液体混合物
公开(公告)号：US07414159B2
公开(公告)日：2008-08-19
申请号：US10547733
申请日：2004-03-03
申请人： Eckhard Stroefer , Neven Lang , Ute Lichtfers , Ulrich Steinbrenner , Hans Hasse
发明人： Eckhard Stroefer , Neven Lang , Ute Lichtfers , Ulrich Steinbrenner , Hans Hasse
IPC分类号： C07C41/18
CPC分类号： B01D1/225 , B01D1/305 , C08G2/08 , C08G2/24
摘要： A liquid mixture comprising at least one readily volatile and at least one sparingly volatile component is separated in a film evaporator by a process in which (i) a continuous stream of a liquid starting material mixture is provided, (ii) a liquid film is produced from the continuous stream and is brought into contact with a heat exchange surface of the Mm evaporator, (ii) the liquid film is partly evaporated, a gas stream enriched with the at least one readily volatile component and a liquid stream enriched with the at least one sparingly volatile component being obtained, wherein (iv) the heat exchange surface is coated with a catalytically active material which (v) catalyzes, in the liquid film, a chemical reaction in which at least one readily volatile component is formed.
摘要翻译：包含至少一种容易挥发的和至少一种微量挥发性组分的液体混合物在膜蒸发器中通过以下方法分离，其中（i）提供液体原料混合物的连续流，（ii）产生液膜从所述连续流中并与所述膜蒸发器的热交换表面接触，（ii）所述液膜部分蒸发，富含所述至少一种易挥发组分的气流和至少富含至少获得一种微量挥发性组分，其中（iv）热交换表面涂覆有催化活性材料，该催化活性材料（v）在液膜中催化形成至少一种容易挥发的组分的化学反应。

13. 发明授权

US07345207B2 Production of high-concentration formaldehyde solutions 失效
标题翻译：生产高浓度甲醛溶液
公开(公告)号：US07345207B2
公开(公告)日：2008-03-18
申请号：US10547732
申请日：2004-03-04
申请人： Eckhard Stroefer , Neven Lang , Hans Hasse , Thomas Grützner , Michael Ott
发明人： Eckhard Stroefer , Neven Lang , Hans Hasse , Thomas Grützner , Michael Ott
IPC分类号： G07C45/78 , C08G8/04
CPC分类号： C07C45/002 , C07C45/82 , C07C47/04
摘要： Process for preparing high-concentration formaldehyde solutions having a CH2O content of ≧50% by weight from an aqueous formaldehyde solution having a lower CH2O content by evaporation of part of this solution (partial evaporation), in which the aqueous formaldehyde solution is heated to an evaporation temperature T at which the gas phase becomes enriched in water relative to the liquid phase and the gas phase formed is taken off continuously or discontinuously, wherein the evaporation temperature T obeys the relationship: T[° C.]
摘要翻译：通过蒸发具有较低CH 2 O 2含量的甲醛水溶液制备CH 2 O 2含量> 50重量％的高浓度甲醛溶液的方法该部分溶液（部分蒸发），其中甲醛水溶液被加热到气相相对于液相富集水的蒸发温度T，形成的气相连续或不连续地取出，其中蒸发温度T遵循以下关系：<？in-line-formula description =“In-line Formulas”end =“lead”？> T [°C。] <°C] <？in-line-formula description =“In-line Formulas”end =“tail”？> <？in-line-formula description =“In-line Formulas”end =“lead”？>其中T < （c）= A + Bx（c / 100）+ Cx（c / 100）2 + Dx（c / 100）3 < line-formula description =“In-line Formulas”end =“tail”？> A = + 68.759，B = + 124.77，C = -12.851，D = -10.095，其中c是瞬时CH 2， / 在蒸发期间甲醛水溶液的重量百分比为20〜99重量％。

14. 发明申请

US20060185513A1 Method for preparing highly concentrated, gaseous formaldehydes 失效
标题翻译：制备高浓度气态甲醛的方法
公开(公告)号：US20060185513A1
公开(公告)日：2006-08-24
申请号：US10547440
申请日：2004-03-03
申请人： Eckhard Stroefer , Neven Lang , Ulrich Steinbrenner , Hans Hasse , Thomas Grutzner
发明人： Eckhard Stroefer , Neven Lang , Ulrich Steinbrenner , Hans Hasse , Thomas Grutzner
IPC分类号： B01D19/00
CPC分类号： C07C45/002 , C07C45/82 , C07C47/04
摘要： Process for preparing high-concentration gaseous formaldehyde having a molar CH2O:H2O ratio of ≧0.6 from an aqueous formaldehyde solution by evaporation of at least part of the solution, in which the aqueous formaldehyde solution is heated to a vaporization temperature T and the gas phase formed is taken off, wherein the evaporation temperature T obeys the relationship: T[° C.]≧T′min[° C.] where T′min(c)=A+B×(c/100)+C×(c/100)2+D×(c/100)3 and A=+68.759, B=+124.77, C=−12.851, D=−10.095, where c is the instantaneous CH2O content of the aqueous formaldehyde solution during the evaporation in percent by weight and is from 20 to 99% by weight.
摘要翻译：从甲醛水溶液中制备具有摩尔CH 2 H 2 O:H 2 O 2比值> 0.6的高浓度气态甲醛的方法，通过蒸发至少部分溶液，其中将甲醛水溶液加热至蒸发温度T，取出形成的气相，其中蒸发温度T遵循以下关系：<？in-line-formula description =“In-line formula”end = “lead”？> T [°C]> = T'分钟<°C。<？in-line-formula description =“In-line Formulas”end =“tail”？> 其中T'分钟（c）= A + Bx（c / 100）+ Cx（c / 100）2 + Dx（c / 100） / SUP>和A = + 68.759，B = + 124.77，C = -12.851，D = -10.095，其中c是蒸发期间甲醛水溶液的瞬时CH 2 O 2含量百分比为20〜99重量％。

15. 发明申请

US20100130756A1 METHOD FOR PRODUCING TRIOXANE FROM TRIOXYMETHYLENE GLYCOL DIMETHYL ETHER 审中-公开
标题翻译：从三甲基乙二醇二甲基醚生产三氧化硅的方法
公开(公告)号：US20100130756A1
公开(公告)日：2010-05-27
申请号：US12593964
申请日：2008-03-27
申请人： Eckhard Stroefer , Neven Lang , Markus Siegert , Hans Hasse
发明人： Eckhard Stroefer , Neven Lang , Markus Siegert , Hans Hasse
IPC分类号： C07D323/06
CPC分类号： C07D323/06
摘要： A process for preparing trioxane from trioxymethylene glycol dimethyl ether (POMDMEn=3) by converting trioxymethylene glycol dimethyl ether in the presence of an acidic catalyst and subsequent distillative workup of the reaction mixture, comprising the steps of: a) feeding trioxymethylene glycol dimethyl ether (POMDMEn=3) or a mixture comprising trioxymethylene glycol dimethyl ether into a reactor and converting it in the presence of an acidic catalyst to a mixture a comprising trioxane, formaldehyde, water, methylene glycol (MG), polyoxymethylene glycols (MGn>1), methanol, hemiformals (HF), methylal (POMDMEn=1) and polyoxymethylene glycol dimethyl ethers (POMDMEn>1); b) distillatively separating the reaction mixture a into a low boiler fraction b1 comprising trioxane, formaldehyde, water, methylene glycol, methanol, hemiformal (HFn=1), methylal and dioxymethylene glycol dimethyl ether (POMDMEn=2), and a high boiler fraction b2 comprising polyoxymethylene glycols (MGn>1), hemiformals (HFn>1) and polyoxymethylene glycol dimethyl ethers (POMDMEn>2); c) distillatively separating the low boiler fraction b1 into a low boiler fraction c1 comprising formaldehyde, water, methylene glycol, methanol, hemiformal (HFn=1), methylal and dioxymethylene glycol dimethyl ether (POMDMEn=2), and a high boiler fraction c2 comprising trioxane.
摘要翻译：一种通过在酸性催化剂存在下转化三甘醇二甲醚和随后的反应混合物的蒸馏后处理由三甘醇二甲醚（POMDMEn = 3）制备三恶烷的方法，包括以下步骤：a）将三亚甲基二醇二甲醚 POMDMEn = 3）或包含三亚甲基二醇二甲醚的混合物加入到反应器中并在酸性催化剂存在下将其转化为包含三恶烷，甲醛，水，亚甲基二醇（MG），聚氧化亚甲基二醇（MGn1），甲醇，半缩甲醛（HF），甲缩醛（POMDMEn = 1）和聚氧化亚甲基二醇二甲醚（POMDMEn> 1）; b）将反应混合物a蒸馏分离成包含三恶烷，甲醛，水，亚甲基二醇，甲醇，半缩甲醛（HFn = 1），甲缩醛和二甲亚甲基二醇二甲醚（POMDMEn = 2）的低沸点馏分b1和高沸点馏分 b2包含聚甲醛二醇（MGn> 1），半缩甲醛（HFn1）和聚甲醛二醇二甲醚（POMDMEn> 2）; c）将低沸点馏分b1蒸馏分离成包含甲醛，水，亚甲基二醇，甲醇，半缩甲醛（HFn = 1），甲缩醛和二羟甲基二醇二甲醚（POMDMEn = 2）的低沸点馏分c1，以及高锅炉馏分c2 包括三恶烷。

16. 发明申请

US20070272540A1 Method for separating trioxane from a trioxane/formaldehyde/water mixture by means of pressure change rectification 有权
公开(公告)号：US20070272540A1
公开(公告)日：2007-11-29
申请号：US10583698
申请日：2004-12-21
申请人： Markus Siegert , Neven Lang , Eckhard Stroefer , Achim Stammer , Thorsten Friese , Hans Hasse
发明人： Markus Siegert , Neven Lang , Eckhard Stroefer , Achim Stammer , Thorsten Friese , Hans Hasse
IPC分类号： B01D3/00 , C07D323/06
CPC分类号： C07D323/06
摘要： A process for removing trioxane from a use stream I of formaldehyde, trioxane and water, by a) providing a use stream I which comprises formaldehyde as the main component and trioxane and water as the secondary components, b) mixing the use stream I with a recycle stream VII which comprises trioxane as the main component and formaldehyde and water as the secondary components to obtain a feed stream Ia which comprises formaldehyde as the main component and trioxane and water as the secondary components, c) distilling the use stream Ia in a first distillation stage at a pressure of from 0.1 to 2.5 bar to obtain a stream II which comprises formaldehyde as the main component and water as the secondary component, and a stream III which comprises trioxane as the main component and water and formaldehyde as the secondary components, d) distilling the stream III, optionally after removing low boilers from the stream III in a low boiler removal stage, in a second distillation stage at a pressure of from 0.2 to 17.5 bar, the pressure in the second distillation stage being from 0.1 to 15 bar higher than the pressure in the first distillation stage, to obtain a stream IV which consists substantially of trioxane and a stream V which comprises trioxane as the main component and water and formaldehyde as the secondary components, e) optionally mixing the stream V with a stream IX which comprises water as the main component to obtain a stream Va having a higher water content than the stream V, the stream Va comprising trioxane as the main component and water and formaldehyde as the secondary components, f) distilling the stream V or Va in a third distillation stage at a pressure of from 1 to 10 bar to obtain a stream VI which consists substantially of water and the recycle stream VII which comprises trioxane as the main component and water and formaldehyde as the secondary components

17. 发明申请

US20100145079A1 METHOD FOR PRODUCING CYCLIC FORMALDEHYDE DERIVATIVES FROM POLYOXY DIALKYL ETHERS 审中-公开
标题翻译：从多羟基二烷基醚生产环状甲醛衍生物的方法
公开(公告)号：US20100145079A1
公开(公告)日：2010-06-10
申请号：US12532430
申请日：2008-03-27
申请人： Eckhard Stroefer , Neven Lang , Markus Siegert , Hans Hasse
发明人： Eckhard Stroefer , Neven Lang , Markus Siegert , Hans Hasse
IPC分类号： C07D323/06
CPC分类号： C07D323/06
摘要： A process for preparing trioxane from trioxymethylene glycol dimethyl ether (POMDMEn=3) by converting trioxymethylene glycol dimethyl ether in the presence of an acidic catalyst and subsequent distillative workup of the reaction mixture, comprising the steps of: a) feeding trioxymethylene glycol dimethyl ether (POMDMEn=3) or a mixture comprising trioxymethylene glycol dimethyl ether into a reactor and converting it in the presence of an acidic catalyst to a mixture a comprising trioxane, formaldehyde, water, methylene glycol (MG), polyoxymethylene glycols (MGn>1), methanol, hemiformals (HF), methylal (POMDMEn=1) and polyoxymethylene glycol dimethyl ethers (POMDMEn>1); b) distillatively separating the reaction mixture a into a low boiler fraction b1 comprising formaldehyde, water, methylene glycol, methanol, hemiformal (HFn=1), methylal and dioxymethylene glycol dimethyl ether (POMDMEn=2), and a high boiler fraction b2 comprising trioxane, polyoxymethylene glycols (MGn>1), hemiformals (HFn>1) and polyoxymethylene glycol dimethyl ethers (POMDMEn>2); c) distillatively separating the high boiler fraction b2 into a low boiler fraction c1 comprising trioxane, and a high boiler fraction c2 comprising polyoxymethylene glycols (MGn>1), hemiformals (HFn>1) and polyoxymethylene glycol dimethyl ethers (POMDMEn>2).
摘要翻译：一种通过在酸性催化剂存在下转化三甘醇二甲醚和随后的反应混合物的蒸馏后处理由三甘醇二甲醚（POMDMEn = 3）制备三恶烷的方法，包括以下步骤：a）将三亚甲基二醇二甲醚 POMDMEn = 3）或包含三亚甲基二醇二甲醚的混合物加入到反应器中并在酸性催化剂存在下将其转化为包含三恶烷，甲醛，水，亚甲基二醇（MG），聚氧化亚甲基二醇（MGn1），甲醇，半缩甲醛（HF），甲缩醛（POMDMEn = 1）和聚氧化亚甲基二醇二甲醚（POMDMEn> 1）; b）将反应混合物a蒸馏分离成包含甲醛，水，亚甲基二醇，甲醇，半缩甲醛（HFn = 1），甲缩醛和二甲亚甲基二醇二甲醚（POMDMEn = 2）的低沸点馏分b1，以及高沸点馏分b2，三氧杂环己烷，聚甲醛（MGn> 1），半缩甲醛（HFn1）和聚甲醛二醇二甲醚（POMDMEn> 2）; c）将高沸点馏分b2蒸馏成包含三恶烷的低沸点馏分c1和包含聚甲醛二醇（MGn> 1），半缩甲醛（HFn1）和聚甲醛二醇二甲醚（POMDMEn2）的高沸点馏分c2。

18. 发明申请

US20070106096A1 Separation of liquid mixtures in a film evaporator 失效
标题翻译：在薄膜蒸发器中分离液体混合物
公开(公告)号：US20070106096A1
公开(公告)日：2007-05-10
申请号：US10547733
申请日：2004-03-03
申请人： Eckhard Stroefer , Neven Lang , Ute Lichtfers , Ulrich Steinbrenner , Hans Hasse
发明人： Eckhard Stroefer , Neven Lang , Ute Lichtfers , Ulrich Steinbrenner , Hans Hasse
IPC分类号： C07C41/03
CPC分类号： B01D1/225 , B01D1/305 , C08G2/08 , C08G2/24
摘要： A liquid mixture comprising at least one readily volatile and at least one sparingly volatile component is separated in a film evaporator by a process in which (i) a continuous stream of a liquid starting material mixture is provided, (ii) a liquid film is produced from the continuous stream and is brought into contact with a heat exchange surface of the Mm evaporator, (ii) the liquid film is partly evaporated, a gas stream enriched with the at least one readily volatile component and a liquid stream enriched with the at least one sparingly volatile component being obtained, wherein (iv) the heat exchange surface is coated with a catalytically active material which (v) catalyzes, in the liquid film, a chemical reaction in which at least one readily volatile component is formed.
摘要翻译：包含至少一种容易挥发的和至少一种微量挥发性组分的液体混合物在膜蒸发器中通过以下方法分离，其中（i）提供液体原料混合物的连续流，（ii）产生液膜从所述连续流中并与所述膜蒸发器的热交换表面接触，（ii）所述液膜部分蒸发，富含所述至少一种易挥发组分的气流和至少富含至少获得一种微量挥发性组分，其中（iv）热交换表面涂覆有催化活性材料，该催化活性材料（v）在液膜中催化形成至少一种容易挥发的组分的化学反应。

19. 发明申请

US20060211841A1 Method for the preparation of highly concentrated formaldehyde solutions 失效
标题翻译：制备高浓度甲醛溶液的方法
公开(公告)号：US20060211841A1
公开(公告)日：2006-09-21
申请号：US10547732
申请日：2004-03-04
申请人： Eckhard Stroefer , Neven Lang , Hans Hasse , Thomas Grützner , Michael Ott
发明人： Eckhard Stroefer , Neven Lang , Hans Hasse , Thomas Grützner , Michael Ott
IPC分类号： C08G14/02 , C08G8/04
CPC分类号： C07C45/002 , C07C45/82 , C07C47/04
摘要： Process for preparing high-concentration formaldehyde solutions having a CH2O content of ≧50% by weight from an aqueous formaldehyde solution having a lower CH2O content by evaporation of part of this solution (partial evaporation), in which the aqueous formaldehyde solution is heated to an evaporation temperature T at which the gas phase becomes enriched in water relative to the liquid phase and the gas phase formed is taken off continuously or discontinuously, wherein the evaporation temperature T obeys the relationship: T[° C.]
摘要翻译：通过蒸发具有较低CH 2 O 2含量的甲醛水溶液制备CH 2 O 2含量> 50重量％的高浓度甲醛溶液的方法该部分溶液（部分蒸发），其中甲醛水溶液被加热到气相相对于液相富集水的蒸发温度T，形成的气相连续或不连续地取出，其中蒸发温度T遵循以下关系：<？in-line-formula description =“In-line Formulas”end =“lead”？> T [°C。] <°C] （c）= A + Bx（c / 100）+ Cx（c / 100））^{2 + Dx（c / 100）3和A = + 68.759，B = + 124.77，C = -12.851，D = -10.095，其中c是瞬时蒸发期间甲醛水溶液的CH 2 O 2 O含量为重量百分比，为20〜99％ ht。}

20. 发明授权

US08835673B2 Process for preparing isocyanates 有权
标题翻译：异氰酸酯的制备方法
公开(公告)号：US08835673B2
公开(公告)日：2014-09-16
申请号：US13513595
申请日：2010-12-03
申请人： Torsten Mattke , Eckhard Stroefer , Julia Leschinski , Radwan Abdallah , Axel Franzke , Michael Bock
发明人： Torsten Mattke , Eckhard Stroefer , Julia Leschinski , Radwan Abdallah , Axel Franzke , Michael Bock
IPC分类号： C07C263/04
CPC分类号： C07C263/04 , C07C265/12 , C07C265/14
摘要： Process for preparing aromatic isocyanates by reacting the corresponding formamides with an oxygen-comprising gas over noble metal catalysts at temperatures of from 300 to 600° C. and a contact time of from 1 to 1000 ms, wherein: a. the formamide is vaporized before entering the reaction zone, b. the reaction mixture obtained is quenched with an alcohol-comprising quenching liquid and c. the urethane formed is dissociated into isocyanate and alcohol.
摘要翻译：通过使贵金属催化剂上的相应的甲酰胺与含氧气体在300-600℃的温度和1至1000ms的接触时间下反应来制备芳族异氰酸酯的方法，其中：a。甲酰胺在进入反应区之前蒸发，b。得到的反应混合物用含醇的淬火液骤冷，c。所形成的聚氨酯被分解成异氰酸酯和醇。

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