基于响应曲面法优化硫酸铵结晶  

Optimisation of Ammonium Sulphate Crystallization Based on Response Surface Methodology

作　　者：李锐 姜永华 张燕玲 陈昆庆 黄帮福[2] 李露[2] LI Rui;JIANG Yonghua;ZHANG Yanling;CHEN Kunqing;HUANG Bangfu;LI Lu(Yunnan Tianlang Energy Saving&Environmental Protection Group Co.,Ltd.,Anning 650302,Yunnan,China;Faculty of Metallurgical and Energy Engineering,Kunming University of Science and Technology,Kunming 650093,China)

机构地区：[1]云南天朗节能环保集团有限公司,云南安宁650302 [2]昆明理工大学冶金与能源工程学院,昆明650093

出　　处：《硅酸盐学报》2022年第3期782-790,共9页Journal of The Chinese Ceramic Society

基　　金：安宁市科技计划项目[安科技字2019(07)号];云南省应用基础研究计划面上项目(202001AT070029,2019FB077);钢铁冶金及资源利用省部共建教育部重点实验室开放基金项目(FMRUlab-20-4)。

摘　　要：采用冷却结晶和筛分法研究了响应曲面法设计下pH值、Fe;浓度、搅拌速率各因素不同水平对平均粒径和变异系数影响程度,构建了平均粒径2次回归模型和C·V·值2FI回归模型,深入探究了各影响因素之间交互作用,研究表明:各因素对平均粒径和C·V·值影响程度为母液pH>搅拌速率>Fe^(3+)质量浓度;各因素之间交互作用对晶体平均粒径和C·V·值影响程度为AC>BC>AB;当母液p H为5.5、搅拌速率为150 r/min、Fe^(3+)质量浓度为0.3 g/L时,可得到平均粒径为0.985 mm、C·V·为793.719的晶体;经验证模型值与实验值误差较小,回归模型具有良好拟合度和可靠性。The influences of pH value,Fe;mass concentration,and stirring rate and their interactions on the ammonium sulfate crystallization were investigated via cooling crystallization and sieving based on a response surface methodology.An average particle size quadratic orthogonal model and a variation coefficient 2FI orthogonal model were proposed.The interactions among the various factors were analyzed.The results show that pH value (A)>stirring rate (C)>Fe^(3+)ions concentration (B) is a decreased order for the parameter effects on the average particle size and variation coefficient.Their interactions have a decreased effect order (i.e.,AC>BC>AB) on the average particle size and variation coefficient.When pH value is 5.5,stirring rate is 150 r/min,and Fe^(3+)ions concentration is 0.3 g/L,the average particle size and variation coefficient of the ideal crystals is 0.985 mm and 793.719,respectively.

关 键 词：响应曲面法 PH值 铁离子浓度 搅拌速率 硫酸铵 结晶 交互作用 

分 类 号：TQ042[化学工程]