硅酸盐通报2011，Vol.30Issue(2)：298-303,6.
超声波强化硫脲漂白高岭土的试验研究
Experiment Research on Bleaching Kaolin with Thiourea Strengthed by Ultrasonic
摘要
Abstract
Beihai kaolin was used as raw material, thiourea as a reducing agent, the strengthening effect of using ultrasonic radiation in bleaching kaolin was studied. The effect of ultrasound frequency, power and processing time on the bleaching was investigated. The samples were characterized by means of XRD and SEM. The results showed that, the bleaching of kaolin with thiourea was significantly enhanced by ultrasonic. When the amount of thiourea was 0.5％ of kaolin, and bleaching time was 40 min, whiteness of calcined kaolin increased only from 83％ to 87％. However, using ultrasonic enhanced bleaching,when ultrasonic frequency was 40 kHz, ultrasonic power was 300 W, and processing time was 40 min,whiteness of calcined kaolin can be up to approximately 89％. The result was similar to that with 0.6％thiourea and reaction at 90 ℃ for 40 min.关键词
超声波/高岭土/硫脲/除铁/烧成白度Key words
ultrasonic/ kaolin/ thiourea/ iron removal/ calcined whiteness分类
矿业与冶金引用本文复制引用
夏光华,赵晓东,苏小丽..超声波强化硫脲漂白高岭土的试验研究[J].硅酸盐通报,2011,30(2):298-303,6.基金项目
江西省科技支撑重点计划目(2008AE00147) （2008AE00147）
