(1. 中国铝业股份有限公司 郑州研究院，郑州 450041；
2. 中南大学 化学化工学院，长沙 410083)
摘 要: 运用数学软件对粒度分布振荡曲线进行定量解析，发现各振荡曲线可表示为同样的函数形式。综合考虑曲线拟合效果及曲线方程的复杂性，采用函数对典型粒度分布振荡曲线进行拟合，相关系数R 均大于0.99，该函数适用于粒径范围内大部分氢氧化铝粒子粒度分布曲线的拟合。本研究成果可为种分过程中氢氧化铝粒度分布的模拟提供数学模型，可为生产中氢氧化铝粒度分布的预报及控制提供技术支撑。
关键字: 粒度分布；振荡曲线；氢氧化铝；种分附聚过程；模拟
hydroxide in seeded agglomeration process
（1. Zhengzhou Research Institute, Aluminum Corporation of China Limited, Zhengzhou 450041, China;
2. School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China）
Abstract:Quantitative analysis on oscillation curves of PSD was carried on by applying software called 1stOpt. The results show that all oscillation curves can be expressed as a function. Considering the fitting effect of curves and the complexity of fitting functions comprehensively, a function was adopted to fit typical oscillation curves of particle size distribution(PSD). The correlation coefficients of fitting are all lager than 0.99, and the fitting function is also suitable for PSD curves of most particles. The results can provide a mathematic model for a simulation of PSD of aluminum hydroxide in the seeded precipitation process, and they are also helpful to broadcast and control the PSD of aluminum hydroxide for alumina refinery.
Key words: particle size distribution; oscillation curve; aluminum hydroxide; seeded agglomeration process; simulation
