摘要
研究铝酸钠溶液的盐酸中和过程对氢氧化铝晶体的形貌、晶型和铝酸钠溶液分解率的影响。结果表明：随着反应体系pH值的下降，氢氧化铝的形貌不断发生变化，且pH值越大，晶体越粗大；不论pH值如何变化，氢氧化铝的晶型总是gibbsite型；铝酸钠溶液的分解率随溶液pH值降低而升高。
Procedure for precipitating aluminium hydroxide from sodium aluminate solution was investigated, and hydrochloric acid was used as neutralization agent. Effects of pH value on the crystal morphology, crystal type and sodium aluminate decomposition ratio were studied. The experimental results show that the crystal morphology of aluminium hydroxide varies with the decreasing pH value of the solution, in addition, the higher the pH value, the larger the crystallites of the precipitates. No matter how the pH value changes, the precipitates always are gibbsite. The decomposition rate increases with the decrease of pH value.
出处
《中国有色金属学报》
EI
CAS
CSCD
北大核心
2008年第E01期264-267,共4页
The Chinese Journal of Nonferrous Metals
基金
国家重点基础研究计划资助项目（2007CB613501）
关键词
铝酸钠
氢氧化铝
中和
纳米丝
sodium aluminate
aluminium hydrate
neutralization
nano-fibre
