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11. 发明公开

EP3498689A1 A PLANT AND METHOD FOR PURIFYING AN ISOMERIC MONOMER, SUCH AS 4,4'-METHYLENE DIPHENYL DIISOCYANATE, FROM A CRUDE MIXTURE 审中-公开
公开(公告)号：EP3498689A1
公开(公告)日：2019-06-19
申请号：EP17207511.1
申请日：2017-12-14
申请人： Sulzer Chemtech AG
发明人： The designation of the inventor has not yet been filed
IPC分类号： C07C263/20 , C07C265/14
摘要： The present invention relates to a plant for preparing a purified isomeric monomer from a mixture of different isomeric monomers, wherein the plant comprises a distillation apparatus, which comprises:
a) a distillation column including a structured packing,
b) a source for a mixture of different isomeric monomers,
c) an evaporator,
d) an overhead vapor condenser,
e) optionally, an overhead vacuum system and
f) a flow-controlled reflux system,
wherein the overhead vapor condenser comprises a shell and tube arrangement and is embodied so as to directly subcool the condensate to less than 47°C, and wherein the flow-controlled reflux system comprises a heater, which is embodied so as to reheat a partial stream of the condensate formed in the overhead vapor condenser up to 190 °C.
Moreover, the present invention relates to a process for preparing a purified isomeric monomer and in particular to a process for purifying 4,4'-methylene diphenyl diisocyanate from a mixture of different isomers of methylene diphenyl diisocyanate, which contains 4,4'-methylene diphenyl diisocyanate and at least one of 2,2'-methylene diphenyl diisocyanate and 2,4'-methylene diphenyl diisocyanate, wherein the process is performed in the plant as described above.

12. 发明公开

EP3293173A1 METHOD FOR PRODUCING ISOCYANATE 有权转让
标题翻译：生产异氰酸酯的方法
公开(公告)号：EP3293173A1
公开(公告)日：2018-03-14
申请号：EP17188407.5
申请日：2014-03-28
申请人： Asahi Kasei Kabushiki Kaisha
发明人： SHINOHATA, Masaaki , TAKEUCHI, Kouji , FUJIMOTO, Naoki , MIYAKE, Nobuhisa
IPC分类号： C07C263/04 , C07C263/20 , C07C265/14 , C07C269/04 , C07C271/06
CPC分类号： C07C263/04 , C07C269/04 , Y02P20/51 , C07C265/14 , C07C271/06
摘要： A method for producing an isocyanate, comprising: a carbamation step of generating an N-substituted carbamate from an organic primary amine, urea and an organic hydroxy compound according to a carbamation reaction, and then recovering a first gaseous phase component containing the urea and/or a compound having a carbonyl group derived from the urea, the organic hydroxy compound, and ammonia; a condensation step of condensing the first gaseous phase component with a condenser; an isocyanate production step of producing an isocyanate by subjecting the N-substituted carbamate to pyrolysis; an ammonia absorption step of allowing a second gaseous phase component containing ammonia recovered as a gaseous phase component from the condenser as a main component, to be absorbed by absorption water, and generating gas-absorbed water; and an ammonia stripping step of heating the gas-absorbed water to separate ammonia from the gas-absorbed water.
摘要翻译： 1。一种异氰酸酯的制造方法，其特征在于，包括：根据氨基甲酰化反应从有机伯胺，尿素和有机羟基化合物生成N-取代氨基甲酸酯的氨基甲酸酯化工序，然后回收含有尿素和/ 或具有衍生自脲，有机羟基化合物和氨的羰基的化合物; 使第一气相组分与冷凝器冷凝的冷凝步骤; 通过对N-取代氨基甲酸酯进行热分解来制造异氰酸酯的异氰酸酯制造工序; 氨回收工序，将从冷凝器回收的含有氨作为气相成分的第二气相成分作为主要成分吸收在吸收水中，生成吸收气体的水; 以及加热所述吸收气体的水以从所述气体吸收水中分离氨的氨汽提步骤。

13. 发明公开

EP2982664A4 METHOD FOR PRODUCING XYLYLENE DIISOCYANATE AND DEVICE FOR PRODUCING XYLYLENE DIISOCYANATE 有权转让
标题翻译：用于生产苯二甲基二和器具，用于产生苯二甲基
公开(公告)号：EP2982664A4
公开(公告)日：2016-11-16
申请号：EP14778071
申请日：2014-03-28
申请人： MITSUI CHEMICALS INC
发明人： TAKAMATSU KOJI , SONE HIDEKI , SASAKI MASAAKI
IPC分类号： C07C263/04 , C07C263/20 , C07C265/14
CPC分类号： C07C263/04 , B01J19/24 , B01J2219/24 , C07C263/20 , C07C265/14
摘要： A method for producing xylylene diisocyanate includes a thermal decomposition step of thermally decomposing xylylene dicarbamate; a first separation step of separating, from the thermal decomposition product obtained in the thermal decomposition step, an isocyanate-containing component containing xylylene diisocyanate as a main component and an alcohol-containing component containing alcohol as a main component and containing xylylene diisocyanate as a subcomponent; a second separation step of separating xylylene dicarbamate and alcohol from the alcohol-containing component obtained in the first separation step; and a returning step of returning xylylene dicarbamate obtained in the second separation step to the thermal decomposition step.

14. 发明授权

EP2640696B1 VERFAHREN ZUR AUFREINIGUNG VON 4,4'-METHYLENDIPHENYLDIISOCYANAT ENTHALTENDEN MISCHUNGEN 有权
标题翻译：法提纯4,4-含有异氰酸酯混合工
公开(公告)号：EP2640696B1
公开(公告)日：2016-08-10
申请号：EP11787657.3
申请日：2011-11-15
申请人： BASF SE
发明人： BOCK, Michael , THIELE, Kai , MURRER, Gabriele
IPC分类号： C07C263/20 , C07C265/14
CPC分类号： C07C263/20 , C07C265/14

15. 发明授权

EP1717223B1 Verfahren zur Reinigung von Isocyanaten 有权转让
公开(公告)号：EP1717223B1
公开(公告)日：2016-07-20
申请号：EP06118257.2
申请日：2003-12-16
申请人： BASF SE
发明人： Wölfert, Andreas , Pallasch, Hans-Jürgen , Stroefer, Eckhard , Blankertz, Heinrich-Josef
IPC分类号： C07C263/10 , C07C263/20 , C07C265/14
CPC分类号： B01D3/141 , C07C263/10 , C07C263/20 , C07C265/14

16. 发明公开

EP3036217A1 VERFAHREN ZUR GEWINNUNG VON ORGANISCHEN ISOCYANATEN AUS DESTILLATIONSRÜCKSTÄNDEN DER ISOCYANATHERSTELLUNG 有权
标题翻译： PROCESS FOR从蒸馏残余物的异氰酸酯生产OBTAINING有机异氰酸酯
公开(公告)号：EP3036217A1
公开(公告)日：2016-06-29
申请号：EP14750749.5
申请日：2014-08-14
申请人： Covestro Deutschland AG
发明人： TIDOW, Klaus , HECKING, Andreas , BUSCH, Jan , RICHTER, Frank , STEFFENS, Friedhelm
IPC分类号： C07C263/20 , C07C265/14
CPC分类号： C07C263/20 , C07C265/14
摘要： The present invention relates to a process for obtaining an organic isocyanate from a phosgenation product comprising the isocyanate, comprising the following steps: a) workup of the phosgenation product, the workup comprising at least one distillation step in which a first portion of the organic isocyanate is removed as distillate and a distillation residue comprising a second portion of the organic isocyanate is obtained, b) workup of the distillation residue obtained in a), the workup comprising at least one distillation step which is conducted at a temperature of up to 110°C at a pressure of not more than 1 mbar, wherein at least 50% by weight of the second portion of the organic isocyanate is removed from the distillation residue.
摘要翻译：本发明涉及一种用于从光气化产物获取有机异氰酸酯包括异氰酸酯，其包含以下步骤：a）后处理，以光气化产物，所述后处理包括至少一个蒸馏步骤，其中有机异氰酸酯的第一部分是作为馏出物取出并蒸馏残余物，其包括有机异氰酸酯的第二部分获得，b）以A中得到的蒸馏残余物）的后处理，后处理包括至少一个蒸馏步骤的所有其在高达110℃的温度下进行。在不超过1毫巴，worin至少50％的重量的有机异氰酸酯的第二部分的压力从蒸馏残余物除去。

17. 发明授权

EP2128128B1 Ammoniumchloridabtrennung aus der Gasphase 失效转让
标题翻译：从气相氯化铵去除
公开(公告)号：EP2128128B1
公开(公告)日：2015-07-29
申请号：EP09006704.2
申请日：2009-05-19
申请人： Bayer Intellectual Property GmbH
发明人： Hansen, Sven, Michael, Dr. , Schneider, Ralf, Dr. , Schwethelm, Bernd , Schiefer, Rolf , Dreher, Jürgen
IPC分类号： C07C263/20 , C07C263/10 , C07C265/00
CPC分类号： C07C263/10 , C07C263/20 , C07C265/14 , C07C265/12

18. 发明授权

EP1912934B1 Verfahren zur Herstellung von Diisocyanaten 有权
标题翻译：一种二异氰酸酯的制备方法
公开(公告)号：EP1912934B1
公开(公告)日：2014-02-26
申请号：EP06792617.0
申请日：2006-07-31
申请人： BASF SE
发明人： WÖLFERT, Andreas , KNÖSCHE, Carsten , HEILIG, Manfred , STROEFER, Eckhard
IPC分类号： C07C263/20 , C07C263/10 , C07C265/14
CPC分类号： C07C263/10 , C07C263/20 , C07C265/14

19. 发明授权

EP2210873B1 PROCESS FOR PRODUCING POLYISOCYANATE 有权
标题翻译：用于生产POLYISOCYANAT
公开(公告)号：EP2210873B1
公开(公告)日：2014-02-12
申请号：EP08850149.9
申请日：2008-11-10
申请人： Mitsui Chemicals, Inc.
发明人： MAEBA, Koji , NOGUCHI, Haruhiko , KAMATSUKI, Tatsuki , SASAKI, Masaaki
IPC分类号： C07C263/20 , B01D3/14 , B01D3/32 , C07C265/14
CPC分类号： C07C263/20 , B01D3/14 , B01D3/141 , C07C265/14

20. 发明公开

EP2670732A2 ISOCYANATE MANUFACTURE 审中-公开
标题翻译： ISOCYANATHERSTELLUNG
公开(公告)号：EP2670732A2
公开(公告)日：2013-12-11
申请号：EP12742362.2
申请日：2012-02-03
申请人： Warsaw Orthopedic, Inc.
发明人： BHATTACHARYYA, Subhabrata , BURELLO, Marco , GOPAL, Damodara , GUELCHER, Scott
IPC分类号： C07C263/10 , C07C291/10 , C07C261/02 , C07C263/20 , C07B63/00
CPC分类号： C07C263/10 , C08G18/10 , C08G18/4833 , C08G18/771 , C07C265/14 , C08G18/42
摘要： The present invention encompasses the finding that improvements can be achieved in manufacture of isocyanates through the use of a substitute for or a precursor of phosgene. Methods and compositions utilized in accordance with the present invention can be useful in situations in which it is difficult to use phosgene, and in particular gaseous phosgene. In some embodiments, a substitute for or a precursor of phosgene used in accordance with the present invention for preparing isocyanates is or comprises diphosgene (ClCO2CCl3).

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