萃取沉淀法制备纳米CaCO_3的研究  

Preparation of Nanometer CaCO_3 by Extraction-Sedimentation

作　　者：王春艳[1] 王春柳 

机构地区：[1]承德石油高等专科学校电气与电子工程系,河北承德067000 [2]滦平县卫生监督所,河北承德067000

出　　处：《承德石油高等专科学校学报》2015年第1期14-15,20,共3页Journal of Chengde Petroleum College

摘　　要：利用2-乙基己基膦酸单2-乙基己基脂（P507）在常温条件下萃取CaCl0溶液中的ca^2＋再用饱和（NH4）2 CO3溶液从负载ca^2＋溶液中进行反萃制备CaCO3沉淀，并对该纳米制备方法的生成机理进行了讨论。TEM和XRD测试表明：粒子基本呈球形，粒径平均约为30～40nm。此实验方法为纳米CaCO3的制备提供了新途径。The experiment utilizes 2-ethylhexyl phosphonic acid mono 2-ethylhexyl grease （P507） extraction Ca^2＋ from CaCl2 solution, reoccuping saturation carbonate ammonium solution direct strip- ping-precipitation of calcium carbonate from P507 loaded Ca^2＋ , getting sedimentation CaCO3. TEM and XRD analysis shows that particles assume spherical in shape with the average size of particles ranging from 30 to 40 nm, providing a new method for preparation of nanometer CaCO3. The paper also discusses on the making mechanism of the nanometer device.

关 键 词：萃取 纳米 CACO3 

分 类 号：TQ32[化学工程—合成树脂塑料工业]