广西高岭土漂白试验研究  

Research on Bleaching Test of Kaolin from Guangxi

作　　者：管俊芳[1] 杨文[1] 魏婷婷[1] 曾伟能 杨增良 俞燕强[1] 

机构地区：[1]武汉理工大学资源与环境工程学院,湖北武汉430070 [2]茂名高岭科技有限公司,广东茂名525026

出　　处：《非金属矿》2010年第5期24-26,共3页Non-Metallic Mines

摘　　要：以广西高岭土为研究对象,采用Φ50mm水力旋流器溢流产品为原料,进行高岭土还原漂白试验研究。研究了硫酸用量、加药次数、保险粉用量和草酸用量等对漂白效果的影响。结果表明,硫酸用量为22.08kg/t,分次加入,保险粉用量为6%,草酸用量为4%,矿浆浓度为16%,反应时间为30min。该高岭土经还原漂白后,白度从54.53%提升到75.44%,且大部分理化指标达到搪瓷、橡塑和陶瓷工业用二级以上标准。The kaolin which was from Changle Guangxi province was determined as the object of study.The overflow product of Φ50mm hydrocyclone was taken as raw materials and bleaching experiments of the samples were studied.The effect of the experiment of amount of sulfric acid,the number of agent dosing,sodium hydrosulfite dosage and the amount of oxalic acid to bleaching were researched,the results showed that amount of sulfric acid was 22.08 kg/t and added into with 8 times.Sodium hydrosulfite doesage was reched 6% and the amount of oxalic acid was 4%,pulp density was 16% and reaction time was 30 minuts.After reduction bleaching of the samples,the whitness increased from 54.53% to 75.44% and most physicochemical index accord with more than secondary national standard of enamel,rubber,plastic and ceramic industry.

关 键 词：高岭土 还原漂白 保险粉 白度 

分 类 号：TD97[矿业工程—选矿]