专利名称：Process for the preparation of a solution of
an alkali metal phosphate
发明人：GRADL, REINHARD, DR.,HEYMER, GERO, DR.申请号：EP85103425.6申请日：19850322公开号：EP0158195B1公开日：19890315
摘要：this invention concerns a process for the production of an aqueous
alkaliphosphatl\ösung by mixing a solution of phosphoric acid in an organic water oronly limited mischbaren solvent; counter current with an aqueous alkalil\ösung, withthe organic and aqueous phase in volumenverh\ältnissen greater than 1: 1 areused.this leads to mixing of the two phases in a reaction zone, each with a mixing and atrennzone coverswith the mischzone by direct contact with the trennzone says that withinor directly below the trennzone.in addition, the organic phase in the aqueous phase iscontinuously dispersed before the beginning of the implementation, by mixing andtrennzone with an aqueous alkaliphosphatl\ösung fillingthen the or the end of thephases orfrom the reaction zone so as to stopthe two phases that the trennschichtconsiderably above the ceiling of the mischzone is kept and also the two phases of thereaction zone in such a total provides,that in the mischzone a volume ratio of organic:aqueous phase of 4: 6 to 2: 8 is generated.
申请人：HOECHST AKTIENGESELLSCHAFT,HOECHST AKTIENGESELLSCHAFT
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