撞击流-沉淀法制备超细阻燃剂-硼酸锌  

Preparation of ultra-fine flame retardant-Zinc Borate by Precipitation in Impinging Streams

作　　者：周玉新[1,2] 曹礼洪[1,2] 邹放[1,2] 

机构地区：[1]武汉工程大学化工与制药学院 [2]绿色化工过程省部共建教育部重点实验室,湖北武汉430073

出　　处：《化学工程与装备》2010年第4期7-10,共4页Chemical Engineering & Equipment

基　　金：国家自然科学基金(No29276260;20076043)

摘　　要：以七水合硫酸锌和硼砂为原料,十二烷基苯磺酸钠为分散剂,运用新型的撞击流反应器进行了制备超细阻燃剂—硼酸锌的实验研究,探讨了反应温度、硫酸锌与四硼酸钠的摩尔比(锌硼比)、液固比(质量比)和反应时间等因素对产品收率的影响,确定了适宜的工艺条件为:反应时间为6h;锌硼比为1.02:1;液固比为4.5:1;反应温度为80℃。产品用XRD、TEM进行了表征,结果表明产品纯度较高,平均粒径约为20～40nm。Using seven hydrated zinc sulfate and borax as raw materials for the SDBS dispersant, Zinc Borate, an ultra-fine flame retardant, was prepared in impinging streams reactor. The reaction temperature, the molar ratio of sulfuric acid Zinc to sodium borate （Zn/B）, the ratio of liquid to solid and reaction time can be determined to study the product yield. The optimum conditions were as follows： reaction time being 6h, the ratio of Zn/B being 1.02：1, the ratio of liquid-solid being 4.5：1, the reaction temperature being 80℃. Products were characterized with XRD and TEM. The result shows that purity of product is higher when average size of particle is about 20 to 40 nm.

关 键 词：阻燃剂 硼酸锌 浸没循环撞击流反应器 

分 类 号：TQ314.248[化学工程—高聚物工业]