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SOLID PERSALT PARTICLES; CONTINUOUS PROCESS AND APPARATUS IN WHICH A CONCENTRATED AQUEOUS HYDROGEN PEROXIDE SOLUTION IS REACTED WITH AT LEAST ONE ALKALI METAL SALT IN A CRYSTALLISER CLASSIFIER PLANT
SOLID PERSALT PARTICLES; CONTINUOUS PROCESS AND APPARATUS IN WHICH A CONCENTRATED AQUEOUS HYDROGEN PEROXIDE SOLUTION IS REACTED WITH AT LEAST ONE ALKALI METAL SALT IN A CRYSTALLISER CLASSIFIER PLANT
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机译:硬石膏颗粒;结晶分级机中至少一种碱金属盐与浓过氧化氢水溶液反应的连续过程和装置
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摘要
A continuous process for the mfr. of solid particles of at least one per-salt of an alkali metal, comprises reacting a conc. aq. soln. of H2O2 with an aq. conc. soln. of at least one alkali metal salt and crystallising the resulting per-salt in a crystalliser/classifier appts. The crystalliser has a clarification zone situated above a stirred zone, across which an ascending current of super-saturated per-salt soln. flows, the latter contg. particles moving in opposite direction to that of the soln. The crystalliser is situated above a classifier in which the particles elute, and accumulate in the lower part, where they are then racked.
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