首页> 外文会议>14th international symposium on industrial crystallization : Abstracts of papers >MATHEMATICAL MODELING AND OPTIMIZATION OF CALCIUM SULPHATE DIHYDRATE AND HEMIHYDRATE CRYSTALLIZATION STAGE, THE STAGE OF CALCIUM SULPHATE DIHYDRATE RECRYSTALLIZATION IN CONTINUOUS INDUSTRIAL P_2O_5 PRODUCTION BY DIFFERENT METHODS
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MATHEMATICAL MODELING AND OPTIMIZATION OF CALCIUM SULPHATE DIHYDRATE AND HEMIHYDRATE CRYSTALLIZATION STAGE, THE STAGE OF CALCIUM SULPHATE DIHYDRATE RECRYSTALLIZATION IN CONTINUOUS INDUSTRIAL P_2O_5 PRODUCTION BY DIFFERENT METHODS

机译:不同方法连续工业生产P_2O_5的硫酸钙二水合物和半水合物结晶阶段的数学建模和优化,硫酸钙二水合结晶过程

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Kinetics of crystallization of different modifications of calcium sulphaternduring the forming process of extractional phosphoric acid was studied in this work.rnMechanism of forming the and growing of crystals of different modifications ofrncalcium sulphate was found, and mechanism of recrystallization of calcium sulphaterndihydrate into the hemihydrate of calcium sulphate was also found . Designedrncontinuous original way of sulphuric acid feeding for the industrial forming of arnphosphoric acid by the dihydrate method , leaded to significant increasing ofrnproduction. For dihydrate - hemihydrate method was developed the technologicalrnscheme , allowing to get an acid with high contents of P_2O_5.
机译:研究了萃取磷酸形成过程中不同形式的亚硫酸钙的结晶动力学。rn发现了不同修饰形式的硫酸钙晶体的形成和生长机理,并研究了二水合磺胺二水钙重结晶为钙半水合物的机理。硫酸盐也被发现。通过二水合物法设计连续连续的硫酸供料方法,以工业化生产阿氨基磷酸,导致产量的显着提高。对于二水合物-半水合物的方法已经发展起来,可以得到高P_2O_5含量的酸。

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