公开(公告)号：US06252073B1

公开(公告)日：2001-06-26

申请号：US09369459

申请日：1999-08-06

申请人： Manfred Schmidt ,  Christoph Klatte ,  Kurt Kunz ,  Josef Leutner ,  Jürgen Ohlemacher ,  Hans Peter Krimmer

发明人： Manfred Schmidt ,  Christoph Klatte ,  Kurt Kunz ,  Josef Leutner ,  Jürgen Ohlemacher ,  Hans Peter Krimmer

IPC分类号： C07D25126

CPC分类号： C07D251/26

摘要： A method for producing alkali metal salts or alkaline earth metal salts of 2,4-dicloro-6-hydroxy-s-triazine, especially the sodium salt, by reacting cyanuric chloride with an alkali hydroxide or alkaline earth hydroxide. 1 to 2.5 Equivalents of alkali hydroxide or alkaline earth hydroxide per mole cyanuric chloride in the form of an aqueous solution or suspension are placed in a receiver and cyanuric chloride in powder form or in the form of an aqueous suspension is added while maintaining a pH in the range of 9.5 to 14 and cooling. If less than a stoichiometric amount is added to the receiver, the remaining amount of alkali hydroxide or alkaline earth hydroxide is added during and/or after the addition of cyanide chloride, while maintaining the pH. The method can be carried out on an industrial scale and formation of the salt of monochlorodihydroxytriazine is largely avoided.

摘要翻译： 通过使氰尿酰氯与碱金属氢氧化物或碱土金属氢氧化物反应来制备2,4-二氯-6-羟基-s-三嗪，特别是钠盐的碱金属盐或碱土金属盐的方法。 1至2.5当量的碱金属氢氧化物或碱土金属氢氧化物/水溶液或悬浮液形式的每摩尔氰尿酰氯置于接收器中时，加入粉末形式的氰尿酰氯或水悬浮液的形式，同时保持pH 范围为9.5〜14，冷却。 如果向接收器中加入少于化学计量的量，则在保持pH值的同时，在加入氰化氯的过程中和/或之后加入碱金属氢氧化物或碱土金属氢氧化物的剩余量。 该方法可以在工业规模上进行，大大避免了单氯二羟基三嗪盐的形成。