【摘要】 用硫酸对磷石膏进行净化的同时制备硫酸钙晶须。结果表明,采用粒度为90～71μm的磷石膏与30%的硫酸混合,在温度为78℃,固液比为0.2 g/mL条件下反应30 min,制得的硫酸钙晶须产量较大,形貌较好、较均匀。更多还原

【Abstract】 Phosphogypsum was purified with sulfuric acid to prepare the calcium sulfate whisker. The results showed that reacting 30 min under the conditions of the mixture of the phosphogypsum particle size of 90 ～71 μm,the sulfuric acid of 30 %,the temperature of 78 ℃ and the solid-liquid ratio of 0. 2 g/mL,the calcium sulfate prepared was bigger yield,better morphology and more uniform.更多还原