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1. 发明专利

PT1849767E PROCESSO PARA A PRODUÇÃO DE ISOCIANATOS 未知
公开(公告)号：PT1849767E
公开(公告)日：2009-12-29
申请号：PT07007795
申请日：2007-04-17
申请人： BAYER MATERIALSCIENCE AG , BAYER MATERIALSCIENCE LLC
发明人： LORENZ WOLFGANG , BOEHM MATTHIAS , BRADY BILL , PFERDEHIRT DONALD
IPC分类号： C07C263/10

2. 发明专利

PL1849767T3 Sposób wytwarzania izocyjanianów 未知
公开(公告)号：PL1849767T3
公开(公告)日：2010-03-31
申请号：PL07007795
申请日：2007-04-17
申请人： BAYER MATERIALSCIENCE LLC , BAYER MATERIALSCIENCE AG
发明人： LORENZ WOLFGANG , BÖHM MATTHIAS , BRADY BILL , PFERDEHIRT DONALD
IPC分类号： C07C263/10

3. 发明专利

DE602007002941D1 未知
公开(公告)号：DE602007002941D1
公开(公告)日：2009-12-10
申请号：DE602007002941
申请日：2007-04-17
申请人： BAYER MATERIALSCIENCE AG , BAYER MATERIALSCIENCE LLC
发明人： LORENZ WOLFGANG , BOEHM MATTHIAS , BRADY BILL , PFERDEHIRT DONALD
IPC分类号： C07C263/10
摘要： Isocyanates are produced by a) reacting at least one amine with phosgene, optionally in the presence of a solvent to produce the corresponding isocyanate and a stream containing hydrogen chloride, phosgene and optionally solvent, low-boiling compounds and inert substances is obtained, b) separating the stream containing hydrogen chloride, phosgene and optionally solvent, low-boiling compounds and inert substances in an at least two-stage sequence of absorption steps that includes (1) at least one isothermal absorption step and (2) at least one adiabatic absorption step, to obtain (i) a hydrogen chloride stream containing phosgene in concentrations of at most 0.5 wt.% (based on the weight of the hydrogen chloride stream) and (ii) a liquid phosgene stream, and c) recycling the liquid phosgene stream (ii) to the reaction of amine with phosgene.

4. 发明专利

ES2334065T3 PROCEDIMIENTO DE PRODUCCION DE ISOCIANATOS. 未知
公开(公告)号：ES2334065T3
公开(公告)日：2010-03-04
申请号：ES07007795
申请日：2007-04-17
申请人： BAYER MATERIALSCIENCE LLC , BAYER MATERIALSCIENCE AG
发明人： LORENZ WOLFGANG , BOHM MATTHIAS , BRADY BILL , PFERDEHIRT DONALD
IPC分类号： C07C263/10
摘要： Un procedimiento de producción de un isocianato, que comprende: a) hacer reaccionar al menos una amina con fosgeno, opcionalmente en la presencia de un disolvente, para producir un isocianato correspondiente y una corriente que contiene cloruro de hidrógeno, fosgeno y opcionalmente disolvente, compuestos de bajo punto de ebullición y sustancias inertes, b) separar la corriente que contiene cloruro de hidrógeno, fosgeno y opcionalmente disolvente, compuestos de bajo punto de ebullición y sustancias inertes en una secuencia al menos de dos fases de etapas de absorción que comprende (1) al menos una etapa de absorción isotérmica y (2) al menos una etapa de absorción adiabática, para obtener (i) una corriente de cloruro de hidrógeno que contiene no más de 0,5% en peso, basándose en el peso total de la corriente de cloruro de hidrógeno, de fosgeno y (ii) una corriente de fosgeno líquido, y c) reciclar la corriente de fosgeno líquido (ii) a la etapa a).

5. 发明专利

JP2007291106A Method for producing isocyanate 有权
标题翻译：生产异氰酸酯的方法
公开(公告)号：JP2007291106A
公开(公告)日：2007-11-08
申请号：JP2007114351
申请日：2007-04-24
申请人： Bayer Materialscience Llc , バイエルマテリアルサイエンスエルエルシーBayer MaterialScience LLC
发明人： LORENZ WOLFGANG , BOEHM MATTHIAS , BRADY BILL , PFERDEHIRT DONALD
IPC分类号： C07C263/10 , C07C263/20 , C07C265/02 , C07C265/12
CPC分类号： C07C263/10 , C01B7/0706 , C01B7/0731 , C07C263/20 , C07C265/14
摘要： PROBLEM TO BE SOLVED: To provide a method carried out so as to achieve at most 0.5 mass% residual concentration of phosgene in a hydrogen chloride stream when an isocyanate is produced and a stream containing hydrogen chloride, phosgene and optionally a solvent, a low-boiling compound and an inert substance from phosgenation of an amine is purified. SOLUTION: The method for producing the isocyanate is provided. The method comprises (a) a step of reacting the amine with phosgene in the presence or absence of the solvent and affording a stream containing the corresponding isocyanate, hydrogen chloride, phosgene and optionally the solvent, low-boiling compound and inert substance, (b) a step of separating the stream in a step having an absorption step of at least two-stage sequences of at least one isothermal absorption step and at least one adiabatic absorption step and providing (i) the hydrogen chloride stream containing ≤0.5 mass% of phosgene based on the total mass of the hydrogen chloride stream and (ii) a liquid phosgene stream and (c) a step of recirculating the liquid phosgene stream (ii) through the step (a). COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种方法，当产生异氰酸酯和含有氯化氢，光气和任选的溶剂的流体时，在氯化氢料流中达到至多0.5质量％的光气残留浓度，纯化低沸点化合物和来自胺的光气化的惰性物质。解决方案：提供了制备异氰酸酯的方法。该方法包括（a）在存在或不存在溶剂的情况下使胺与光气反应的步骤，并提供含有相应的异氰酸酯，氯化氢，光气和任选的溶剂的低沸点化合物和惰性物质的流（b ）在具有至少两个等温吸收步骤和至少一个绝热吸收步骤的至少两级序列的吸收步骤的步骤中分离料流的步骤，并且提供（i）含有≤0.5质量％基于氯化氢流的总质量和（ii）液体光气流的光气，和（c）通过步骤（a）使液体光气流（ii）再循环的步骤。版权所有（C）2008，JPO＆INPIT

6. 发明专利

JP2010143900A Method for producing isocyanate in gas phase 有权
标题翻译：在气相中生产异氰酸酯的方法
公开(公告)号：JP2010143900A
公开(公告)日：2010-07-01
申请号：JP2009284086
申请日：2009-12-15
申请人： Bayer Materialscience Ag , バイエルマテリアルサイエンスアクチエンゲゼルシャフトBayer MaterialScience AG
发明人： BISKUP KLAUS , BRUNS RAINER , LORENZ WOLFGANG , PADEKEN LARS , PENNEMANN BERND , POHL FRITZ , RAUSCH ANDREAS , STEFFENS FRIEDHELM
IPC分类号： C07C263/10 , C07C265/14
CPC分类号： C07C263/10 , C07C265/14
摘要： PROBLEM TO BE SOLVED: To provide a method for gas-phase phosgenation of an aromatic diamine on a large commercial scale while minimizing the formation of solid materials.
SOLUTION: The method for producing m-toluene diisocyanate comprises supplying a reactor with a gaseous phosgene flow and gaseous m-toluenediamine generated by evaporating liquid m-toluenediamine in at least one evaporator.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供在大规模工业规模下芳族二胺气相光气化的方法，同时最小化固体材料的形成。解决方案：制备间甲苯二异氰酸酯的方法包括向反应器供应气态光气流和通过在至少一个蒸发器中蒸发液体间甲苯二胺产生的气体间甲苯二胺。版权所有（C）2010，JPO＆INPIT

7. 发明专利

JP2010138171A Method for producing isocyanate in gas phase 有权
标题翻译：在气相中生产异氰酸酯的方法
公开(公告)号：JP2010138171A
公开(公告)日：2010-06-24
申请号：JP2009274288
申请日：2009-12-02
申请人： Bayer Materialscience Ag , バイエルマテリアルサイエンスアクチエンゲゼルシャフトBayer MaterialScience AG
发明人： BISKUP KLAUS , BRUNS RAINER , LORENZ WOLFGANG , POHL FRITZ , STEFFENS FRIEDHELM , MICHELE VOLKER
IPC分类号： C07C263/10 , C07C265/14
CPC分类号： C07C263/10 , C07C265/14
摘要： PROBLEM TO BE SOLVED: To provide a production method of aromatic isocyanate by reacting one or more aromatic primary amine with phosgene in the gas phase.
SOLUTION: The phosgene and primary aromatic amine are reacted at a temperature above the boiling temperature of the amine in a reactor having a reaction space which is essentially rotationally symmetric to the direction of flow. The flow rate, averaged over the cross-section, of the reaction mixture along the axis of the essentially rotationally symmetric reaction space in the section of the reaction space in which the conversion of the amine groups into isocyanate groups is 4-80%, is not more than 8 m/s. The flow rate, averaged over the cross-section, of the reaction mixture along the axis of the essentially rotationally symmetric reaction space in the section of the reaction space in which the conversion of the amine groups into isocyanate group is 4-80%, is always below the flow rate averaged over the cross-section at the start of the section.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：待解决的问题：通过在气相中使一种或多种芳族伯胺与光气反应来提供芳族异氰酸酯的制备方法。解决方案：光气和伯芳基胺在具有反应空间的反应器中在高于沸点温度的温度下反应，反应空间基本上与流动方向旋转对称。反应混合物沿反应空间的基本上旋转对称的反应空间的轴线的横截面平均流速，其中胺基转化为异氰酸酯基的反应空间为4-80％，为不超过8米/秒。反应混合物沿反应空间的基本上旋转对称的反应空间的轴线的横截面平均流速，其中胺基转化为异氰酸酯基的反应空间为4-80％，为总是低于在该段开始的横截面上平均的流量。版权所有（C）2010，JPO＆INPIT

8. 发明专利

JP2008150378A Process for producing toluene diisocyanate 审中-公开
标题翻译：生产二苯甲酸二甲酯的方法
公开(公告)号：JP2008150378A
公开(公告)日：2008-07-03
申请号：JP2007325509
申请日：2007-12-18
申请人： Bayer Materialscience Ag , バイエルマテリアルサイエンスアクチエンゲゼルシャフトBayer MaterialScience AG
发明人： LORENZ WOLFGANG , PADEKEN LARS , PENNEMANN BERND , STEFFENS FRIEDHELM , WEISMANTEL LOTHAR
IPC分类号： C07C263/10 , C07C265/14
CPC分类号： C07C263/10 , C07C209/62 , C07C265/14 , C07C211/51
摘要： PROBLEM TO BE SOLVED: To provide a simple process for producing TDI in which the cost and the energy consumption necessary for the post-treatment of residues are minimum, and further, the loss in the yield of TDI and the formation of residual substances to be discarded are both minimum.
SOLUTION: The process for producing TDI comprises reacting toluenediamine with phosgene, to form crude toluene diisocyanate, purifying the crude toluene diisocyanate by distillation to form purified toluene diisocyanate and a mixture containing toluene diisocyanate and a distillation residue of toluene diisocyanate, continuously mixing the mixture with water at a temperature of lower than 230°C under absolute pressure of less than 30 bar, reacting the above mixture under the same conditions in one or more tubular reactors connected in series, to form toluenediamine and, optionally, purifying the resultant toluenediamine component and recirculating at least a part of the purified toluenediamine to the reaction step.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种生产TDI的简单方法，其中残留物后处理所需的成本和能耗最小，此外，TDI产量的损失和残留物的形成要丢弃的物质都是最小的。解决方案：制备TDI的方法包括使甲苯二胺与光气反应，形成粗甲苯二异氰酸酯，通过蒸馏纯化粗甲苯二异氰酸酯，形成纯化甲苯二异氰酸酯和含甲苯二异氰酸酯和甲苯二异氰酸酯蒸馏残余物的混合物，连续混合该混合物在低于230℃的温度下，绝对压力小于30巴，在相同的条件下，在一个或多个串联连接的管式反应器中使上述混合物反应，形成甲苯二胺，并任选地纯化所得物甲苯二胺组分并将至少一部分纯化的甲苯二胺再循环至反应步骤。版权所有（C）2008，JPO＆INPIT

9. 发明专利

JP2009196991A Method for producing isocyanate 有权
标题翻译：生产异氰酸酯的方法
公开(公告)号：JP2009196991A
公开(公告)日：2009-09-03
申请号：JP2009029230
申请日：2009-02-12
申请人： Bayer Materialscience Ag , バイエルマテリアルサイエンスアクチエンゲゼルシャフトBayer MaterialScience AG
发明人： LORENZ WOLFGANG , BOEHM MATTHIAS , ADAMSON RICHARD , STEFFENS FRIEDHELM , HIELSCHER ANKE
IPC分类号： C07C263/10 , C07C263/20 , C07C265/00
CPC分类号： C01B7/035 , C07C263/10 , C07C263/20 , C07C265/14 , C07C265/12
摘要： PROBLEM TO BE SOLVED: To provide a method for producing a solvent-free isocyanate by providing a possibility of reducing the quantity of the solvent required in the flow of dephosgenated isocyanate, in this case, the isocyanate flow must be separated in the post-treatment, that is, by higher phosgene concentration in the solvent totally carried out in the circulating route. SOLUTION: An appropriate amine is reacted with phosgene, condensing the gas mixture thereby obtained, stripping the liquid phase thereby obtained, the solvent so retained in liquid form is returned to the reaction stage of amine and phosgene, and in the case of selectable method, the total quantity of the solvent in the circulating route is constant and the quantity of the solvent for the refining of hydrogen chloride can be increased, in case a further treatment appropriately selected is thus required. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：待解决的问题：为了提供通过提供减少未脱磷酸酯流动所需的溶剂量的可能性来制备无溶剂的异氰酸酯的方法，在这种情况下，异氰酸酯流动必须在后处理，即在循环路线中完全进行的溶剂中较高的光气浓度。解决方案：将合适的胺与光气反应，冷凝由此得到的气体混合物，汽提由此获得的液相，所以保持液态的溶剂返回到胺和光气的反应阶段，在可选择的方法中，循环路线中溶剂的总量是恒定的，并且因此需要进一步处理适当选择的情况下，可以提高氯化氢精制溶剂的量。版权所有（C）2009，JPO＆INPIT

10. 发明专利

JP2008150379A Process for producing toluenediamine by catalytic hydrogenation of dinitrotoluene 有权
标题翻译：通过催化氢化生产甲苯二胺的方法
公开(公告)号：JP2008150379A
公开(公告)日：2008-07-03
申请号：JP2007326311
申请日：2007-12-18
申请人： Bayer Materialscience Ag , バイエルマテリアルサイエンスアクチエンゲゼルシャフトBayer MaterialScience AG
发明人： POHL FRITZ , LORENZ WOLFGANG , PADEKEN LARS , PENNEMANN BERND , STEFFENS FRIEDHELM , WIECHERS GERHARD
IPC分类号： C07C209/36 , C07B61/00 , C07C211/50
CPC分类号： C07C209/36 , C07C211/50
摘要： PROBLEM TO BE SOLVED: To provide a process for producing toluenediamine by which the disadvantages in background techniques described in the specification are avoided. SOLUTION: A solution is achieved by the process for producing the toluenediamine in which the dinitrotoluene has a content of carbon dioxide, in either physically dissolved or chemically bonded form, of COPYRIGHT: (C)2008,JPO&INPIT

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