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公开(公告)号：US07425247B2
公开(公告)日：2008-09-16
申请号：US10530917
申请日：2004-02-13
IPC分类号： B01D3/34 , B01D3/42 , C01B21/14 , C01C1/00 , C07C239/00
CPC分类号： C01B21/1445 , B01D3/343 , Y10S203/06
摘要： This invention relates to a method for producing an aqueous solution of free hydroxylamine (HA) by simultaneous countercurrent treatment of a HA salt with ammonia or ammonia water, then separating the HA by distillation and reconcentrating the aqueous HA solution in a countercurrent with a stripping medium. The stripping medium used according to the invention is a mixture of steam and a non-condensable inert gas and the process temperature at a defined pressure is controlled by the quantity of non-condensable inert gas at the column inlet. The preferred non-condensable inert gas is nitrogen. This results in increased safety and a reduction in losses of the method for producing aqueous solutions of free HA.
摘要翻译： 本发明涉及通过与氨或氨水同时对HA盐进行逆流处理，然后通过蒸馏分离HA和将HA水溶液再次与汽提介质逆流再浓缩来制备游离羟胺（HA）的水溶液的方法 。 根据本发明使用的汽提介质是蒸汽和不可冷凝惰性气体的混合物，并且在限定压力下的工艺温度由塔入口处的不可冷凝惰性气体的量来控制。 优选的不可冷凝惰性气体是氮气。 这导致提高游离HA的水溶液的安全性和减少生产水溶液的方法的损失。
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公开(公告)号：US20060032734A1
公开(公告)日：2006-02-16
申请号：US10530917
申请日：2004-02-13
CPC分类号： C01B21/1445 , B01D3/343 , Y10S203/06
摘要： This invention relates to a method for producing an aqueous solution of free hydroxylamine (HA) by simultaneous countercurrent treatment of a HA salt with ammonia or ammonia water, then separating the HA by distillation and reconcentrating the aqueous HA solution in a countercurrent with a stripping medium. The stripping medium used according to the invention is a mixture of steam and a non-condensable inert gas and the process temperature at a defined pressure is controlled by the quantity of non-condensable inert gas at the column inlet. The preferred non-condensable inert gas is nitrogen. This results in increased safety and a reduction in losses of the method for producing aqueous solutions of free HA.
摘要翻译： 本发明涉及通过与氨或氨水同时对HA盐进行逆流处理，然后通过蒸馏分离HA和将HA水溶液再次与汽提介质逆流再浓缩来制备游离羟胺（HA）的水溶液的方法 。 根据本发明使用的汽提介质是蒸汽和不可冷凝惰性气体的混合物，并且在限定压力下的工艺温度由塔入口处的不可冷凝惰性气体的量来控制。 优选的不可冷凝惰性气体是氮气。 这导致提高游离HA的水溶液的安全性和减少生产水溶液的方法的损失。
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公开(公告)号：US07608236B2
公开(公告)日：2009-10-27
申请号：US10562984
申请日：2004-07-28
申请人： Wolfgang Löbel , Thomas Strecker , Joachim Seidler
发明人： Wolfgang Löbel , Thomas Strecker , Joachim Seidler
CPC分类号： B01J8/222 , B01F3/04531 , B01F7/00275 , B01F7/00558 , B01F7/00641 , B01F15/066 , B01F2003/04673 , B01F2215/0422 , B01F2215/0431 , B01J21/18 , B01J23/42 , B01J2208/00141 , B01J2208/0084 , B01J2208/00867 , B01J2219/0025 , C01B21/1418
摘要： A method of producing hydroxylammonium salts by catalytic reaction of nitrogen monoxide with hydrogen in a diluted aqueous solution of mineral acid in the presence of platinum catalysts suspended on a support in multiple subsequent reaction stages. This reaction takes place in a stirred reactor wherein a gas inlet and distribution system is provided in the lower part of the stirred reactor, a disk agitator is placed immediately above, the hub with bearing surface or support mounting angled, concave and tilted agitator blades that rotate their angled or concave sides in the direction of motion, and a two-blade agitator is provided on the agitator shaft in the upper part of the stirred reactor, its individual leaves being offset like lamellas so that they constantly wet the reactor cap when rotating.
摘要翻译： 在多种后续反应阶段中，在悬浮在载体上的铂催化剂存在下，在无机酸的稀释水溶液中，通过一氧化氮与氢气的催化反应生产羟铵盐的方法。 该反应发生在搅拌反应器中，其中在搅拌反应器的下部设置气体入口和分配系统，将盘式搅拌器立即放置在上方，具有支承表面的轮毂或支撑件安装倾斜的，倾斜和倾斜的搅拌器叶片， 在运动方向上旋转其倾斜或凹入的侧面，并且在搅拌反应器上部的搅拌器轴上设置双叶片搅拌器，其单独的叶片像薄片一样偏移，使得当旋转时它们不断地润湿反应器盖 。
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公开(公告)号：US20070172407A1
公开(公告)日：2007-07-26
申请号：US10562984
申请日：2004-07-28
申请人： Wolfgang Lobel , Thomas Strecker , Joachim Seidler
发明人： Wolfgang Lobel , Thomas Strecker , Joachim Seidler
IPC分类号： C01B21/20
CPC分类号： B01J8/222 , B01F3/04531 , B01F7/00275 , B01F7/00558 , B01F7/00641 , B01F15/066 , B01F2003/04673 , B01F2215/0422 , B01F2215/0431 , B01J21/18 , B01J23/42 , B01J2208/00141 , B01J2208/0084 , B01J2208/00867 , B01J2219/0025 , C01B21/1418
摘要： The invention relates to a method of producing hydroxylammonium salts by catalytic reaction of nitrogen monoxide with hydrogen in a diluted aqueous solution of mineral acid in the presence of platinum catalysts suspended on a support in multiple subsequent reaction stages. According to the invention, this reaction takes place in a stirred reactor wherein a gas inlet and distribution system is provided in the lower part of the stirred reactor, a disk agitator is placed immediately above, the hub with bearing surface or support of which comprising angled, concave and tilted agitator blades that rotate their angled or concave sides in the direction of motion, and a two-blade blade agitator is provided on the agitator shaft in the upper part of the stirred reactor, its individual leaves being offset like lamellas so that they constantly wet the reactor cap when rotating. It is an advantage of the method according to the invention that the reduction reaction, due to the effect of the special agitating apparatus, surprisingly proceeds at an extraordinarily high rate, facilitating increased throughput without the need to enlarge the reaction chamber.
摘要翻译： 本发明涉及通过在多个后续反应阶段中悬浮在载体上的铂催化剂存在下，在稀土的无机酸水溶液中一氧化氮与氢气的催化反应生产羟铵盐的方法。 根据本发明，该反应在搅拌反应器中进行，其中气体入口和分配系统设置在搅拌反应器的下部，盘式搅拌器立即放置在上方，该轮毂具有承载表面或其支撑件，其包括成角度 ，倾斜的倾斜搅拌器叶片，其在运动方向上旋转其倾斜或凹入的侧面，并且在搅拌反应器的上部的搅拌器轴上设置双叶片搅拌器，其单独的叶片像薄片一样偏移，使得 他们在旋转时不断润湿反应器盖。 根据本发明的方法的优点在于，由于特殊搅拌装置的作用，还原反应出人意料地以非常高的速率进行，促进了生产量的增加，而不需要扩大反应室。
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