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第 35 卷第 10 期 精 细 化 工 Vol.35, No.10
2018 年 10 月 FINE CHEMICALS Oct. 2018

功能材料
均一粒径 BaSO 微球的合成及产率
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郭晓燕 1,2,4 ，刘丽霞 ，刘月姣 ，孔敏方 ，靳海波 2,4* ，范代娣
（1. 西北大学 化学工程学院，陕西 西安 710069；2. 北京石油化工学院 化学工程学院，北京 102617；
3. 北京化工大学 化学工程学院，北京 100029；4. 燃料清洁化及高效催化减排技术北京市重点实验室，
北京 102617）

摘要：以 BaCl 2 、Na 2 SO 4 为原料，乙二胺四乙酸二钠（EDTA2Na）为络合剂，采用络合法合成了均一粒径的
BaSO 4 微球，并利用 XRD、FTIR、XRF、SEM 及 DLS 对 BaSO 4 微球进行了表征。考察了 EDTA2Na 用量、反
应物浓度、反应温度、二次调节 pH 对 BaSO 4 微球形貌和产率的影响。BaSO 4 微球合成的最佳条件为：c(BaCl 2 )=
1.0 mol/L，n(EDTA2Na)∶n(BaCl 2 ) ∶n(Na 2 SO 4 )=1∶1∶1，反应温度 55 ℃，pH=9.0。结果表明：合成产物是
BaSO 4 ，单分散且粒径在 1.3~1.8 μm 范围内的微球占总颗粒数量的 47.01%，产率为 74.15%。二次调节 pH=7.0
可将 BaSO 4 的收率由 74.15%提高至 87.88%，但除了获得粒径 1.5~2 μm 的 BaSO 4 微球外，还会获得大量亚微米
级 BaSO 4 颗粒，导致产物粒径均一性下降。
关键词：BaSO 4 ；微球；均一粒径；功能材料
中图分类号：TQ 050.4+21 文献标识码：A 文章编号：1003-5214 (2018) 10-1641-06

Synthesis and Yield of BaSO 4 Microspheres with Uniform Sizes

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GUO Xiao-yan 1,2,4 , LIU Li-xia , LIU Yue-jiao , KONG Min-fang , JIN Hai-bo 2,4* , FAN Dai-di
（1. College of Chemical Engineering, Northwest University, Xi'an 710069, Shaanxi, China; 2. School of Chemical
Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China; 3. College of Chemical Engineering,
Beijing University of Chemical Technology, Beijing 100029, China; 4. Beijing Key Laboratory of Fuels Cleaning and
Advanced Catalytic Emission Reduction Technology, Beijing 102617, China）
Abstract: BaSO 4 microspheres with uniform sizes were synthesized by complexation method using BaCl 2
and Na 2SO 4 as raw materials in the presence of EDTA2Na. The as-prepared samples were characterized by
XRD, FTIR, XRF，SEM and DLS. The factors affecting the morphology and yield of BaSO 4 microspheres
such as dosage of EDTA2Na, concentration of reactants, reaction temperature and secondary adjusting the
pH value were investigated. The optimizing conditions for the preparation of BaSO 4 microspheres were
obtained as follows: c(BaCl 2)=1.0 mol/L, n(EDTA2Na)∶n(BaCl 2)∶n(Na 2SO 4)=1∶1∶1，reaction
temperature 55 ℃ and pH=9.0. The results showed that monodispersed BaSO 4 microspheres having
various sizes from 1.3 to 1.8 μm account for 47.01% of all particles were obtained with a yield of 74.15%.
Secondary adjusting the pH=7.0 could improve the yield of BaSO 4, increasing to 87.88% from 74.15%.
However, in addition to BaSO 4 microspheres with a particle size of 1.5~2 μm, a large number of sub-micron
grade BaSO 4 particles were also obtained, which resulted in a decrease in the uniformity of the particle sizes
of the product.
Key words: BaSO 4; microspheres; uniform particle size; functional materials
Foundation items: National Natural Science Foundation of China (21506171); Project of Construction of
Innovative Teams and Teacher Career Development for Universities and Colleges under Beijing
Municipality (IDHT20180508)

收稿日期：2017-09-27; 定用日期：2018-04-13; DOI: 10.13550/j.jxhg.20170781
基金项目：国家自然科学基金项目（21506171）；北京市属高校高水平教师队伍建设支持计划高水平创新团队建设计划项目
（IDHT20180508）
作者简介：郭晓燕（1982—），女，讲师，博士生。联系人：靳海波（1969—），教授，博士，电话：010-81292208，E-mail：jinhaibo@bipt.edu.cn。
范代娣（1966—），女，教授，博士，E-mail：fandaidi@nwu.edu.cn。