石膏转化法由氯化钾制取硫酸钾

Conversion of Gypsum and Potassium Chloride to Potassium Sulphate in Aqueous Ammonia

石膏转化法由氯化钾制取硫酸钾何凯王向荣（太原工业大学化学工程系，太原０３００２４）关键词多项式拟和硫酸钾石膏氨１前言硫酸钾主要用于对氯离子敏感的亚麻、茶叶、烟草、柑桔等经济作物，它可由硫酸或其化合物与氯化钾的转化制得。１９世纪由德国开发的硫酸转化氯...

On the basis of theoretic analysis of the phase diagram on system of K +,Ca 2+ ,NH + 4‖Cl -,SO 2- 4-H 2O, manufacturing technology of potassium sulphate from gypsum and potassium chloride in aqueous ammonia was realized by one step method. Influences of the various factors to conversion yield of KCl was investigated. Conversion yield of KCl and purity of product were 94% and 86.5% respectively. Optimizing technological parameters and polynomial mathematic models were acquired from a series of single factor tests.