摘要
反应温度、反应物浓度和ＣＯ２流速等因素决定立方体碳酸钙的形成。当控制温度在１５～２５℃，Ｃａ（ＯＨ）２固含量为５％～１２％时，生成较为理想的０．１～２μｍ的立方体碳酸钙。研究证明，碳化率在３０％以前产物呈无定形态，３０％以后转变成立方体晶形。
The formation of cubic precipitated CaCO3 is controlled by reaction temperature,concentrations of the reactive substances and flow rate of CO2.When the temperature is 15￣25 and the content of Ca(OH)2 is 5%￣12%,cubic precipitated CaCO3 of 0.1￣2 m is formed.The experiments show that when the rate of carbonation is<30%,the product is amorphous,but cubic CaCO3 is formed after the rate of carbonation is>30%.Under this condition,the crystal type of CaCO3 is no more depending on the rate of CO2.
出处
《化学世界》
CAS
CSCD
1999年第3期126-129,共4页
Chemical World
