高性能白炭黑的制备方法  

Preparation of High Quality Silica

作　　者：蒋红华 王亚纳[2] 王帅[2] 阮建成[2] JIANG Honghua;WANG Yana;WANG Shuai;RUAN Jiancheng(Hangzhou Xinde Environmental Protection Technology Co.Ltd,Jiande,Zhejiang 311604;College of Chemical and Biological Engineering,Zhejiang University,Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology,Hangzhou,310027)

机构地区：[1]杭州新德环保科技有限公司,浙江建德311604 [2]浙江大学化学工程与生物工程学院,浙江省化工高效制造技术重点实验室,杭州310027

出　　处：《化工生产与技术》2020年第2期17-20,I0002,共5页Chemical Production and Technology

摘　　要：为制备高性能的的白炭黑,以硅酸钠溶液和硫酸溶液为原料,开发了一种2段式制备方法,并进行了反应条件的优化。结果表明,在硅酸钠浓度40 mmol/L,硫酸的浓度1mol/L,一段、二段反应温度分别为40、60℃,终点pH为8的条件下,得到DBP吸油量为3.45 mL/g的优质白炭黑产品。该方法具有操作简单、反应条件温和、产品性能稳定的特点,为工业化制备优质白炭黑提供一定的指导意义。In order to prepare high-quality Silica,a two-stage method was developed to use sodium silicate solution and sulfuric acid solution as raw materials.And through the optimization of reaction conditions,under the conditions of sodium silicate concentration40 mmol/L,first-stage reaction temperature of 40℃,second-stage reaction temperature of 60℃,and end point pH of 8,high-quality silica with DBP of 3.45 mL/g was obtained.The method has the characteristics of simple operation,warm reaction conditions and stable product performance,and provides certain guiding significance for the industrial preparation of high-quality silica.

关 键 词：白炭黑 沉淀法 比表面积 吸油量 

分 类 号：TQ424.29[化学工程]