高岭土除铁增白酸水处理工艺优化研究
Optimization of Acid Water Treatment Process for Iron Removal and Whitening of Kaolin
王晶晶 1王志国 1代雷孟 1陈帝龙 1李炳华 1梁锡治1
作者信息
- 1. 中非高岭茂名新材料有限公司,广东 茂名 525000
- 折叠
摘要
以茂名高岭土生产过程中产生的除铁增白酸水为研究对象,在现有水处理工艺分析及试验研究基础上,提出"重力沉降—石灰中和—氧化曝气—絮凝沉淀"处理的优化工艺.结果表明,经重力沉降高岭土回收率可达到 90%,质量达到GB/T14563-2020《高岭土及其试验方法》中涂料行业用水洗高岭土指标要求,后续处理过程中絮凝剂PAC用量可减少70%.并探讨处理水回用对分散剂六偏磷酸钠用量的影响.
Abstract
Based on the analysis and experimental research of the existing water treatment process,an optimal process of"gravity sedimentation-lime neutralization-oxidation aeration-flocculation precipitation"was proposed for the removal of iron and whitening acid from the production of Maoming kaolin.The results show that the recovery rate of kaolin by gravity sedimentation can reach 90%,and the quality can meet the index requirements of the coating industry to wash kaolin with water in GB/T14563-2020"Kaolin and its test methods",and the dosage of flocculant PAC in the subsequent treatment process can be reduced by 70%.The influence of treatment water reuse on the amount of sodium hexametaphosphate dispersant was also discussed.
关键词
高岭土/酸水/水处理工艺/重力沉降/絮凝剂Key words
kaolin/acid water/water treatment technology/gravity settlement/flocculant引用本文复制引用
基金项目
中国建筑材料工业地质勘查中心(中国非金属矿工业有限公司)揭榜挂帅项目(建地科[2022]04号)
出版年
2024
国家科技期刊平台
NSTL
万方数据