【摘要】 结合定转子反应器的结构及特点, 提出了定转子反应器制备纳米碳酸钙的新工艺。采用Ca(OH)2H2O CO2 多相反应体系, 考察了气液逆流及并流操作对碳化反应时间的影响。XRD分析结果表明产品为方解石型碳酸钙; 通过TEM观测可知, 产品为平均粒径50~60 nm的立方形纳米碳酸钙。更多还原

【Abstract】 A new route of preparing nanoCaCO 3 by RotorStator Reactor(RSR) was presented on the basis of the analysis of the structure and characteristics of RSR. By adopting a multiphase reaction system of Ca(OH) 2H 2OCO 2, the influences of operating conditions like gasliquid cocurrent and countercurrent on carbonation time were investigated. XRD analysis showed that the product was calcite calcium carbonate. TEM images indicated that the product was cubic calcium carbonate with mean particle size of 50～60nm.更多还原