碳分法制取高纯氢氧化铝微粉
来源期刊：中南大学学报(自然科学版)1994年第2期
论文作者：上官正 王晓峰
文章页码：182 - 185
关键词：碳分; 铝酸钠溶液; 氢氧化铝微粉
Key words：carbonation; aluminate solution; superfine and extrapure aluminium hydroxide
摘 要：用二氧化碳气体两段碳酸化经深度脱硅,硅量指数μ(Si)为5000～10000的工业铝酸钠溶液,制得粒度为1.0μm以下,纯度大于99.9%的氢氧化铝,并找到了最佳的工艺和技术条件.
Abstract: The aluminate solution from ahmina refiriery was desilicated with the ddition of calciumhydroalumocarbonate getting high silica index μSi(5000～10 000). This solution was carbon-ated in two steps and special Al(OH)3 with size below 1.0μm and pourity over 99.9%wasprepared.The optimum conditfions in wliich this Al(OH)3 is prepared have been determined.
