论文部分内容阅读
分析了目前过磷酸钙的生产过程,认为在过程后续阶段反应环境不利于硫酸和磷矿间进行质量交换。为搭建一个平台使硫酸和磷矿粉之间的反应渠道始终畅通,提出无熟化过磷酸钙工艺与二水物磷酸生产过程类似,通过提高矿粉细度和搅拌强度,降低硫酸浓度和反应温度,达到提高转化率的目的。过磷酸钙生产新工艺取消了化成、熟化工序,环保,节能,符合当前产业政策。
The current production process of SSP is analyzed, and the reaction environment is not conducive to the quality exchange between sulfuric acid and phosphate rock at the subsequent stage of the process. In order to build a platform to make the reaction channel between sulfuric acid and phosphate rock powder always unobstructed, it is proposed that the uncured calcium superphosphate process is similar to the phosphoric acid production process of dihydrate, and the fineness and agitation intensity of ore powder are reduced to reduce the concentration of sulfuric acid and the reaction temperature , To achieve the purpose of improving the conversion rate. The new technology of the production of superphosphate canceled the chemical into, curing process, environmental protection, energy saving, in line with the current industrial policy.