CAJ | 학술논문

以间歇碳化法制备纳米碳酸钙的工艺为基础，以压电超声波辅助合成为方法，以实现工业化生产优质的纳米碳酸钙为目的，确定了超声辐照下纳米碳酸钙的合成反应罐结构及合成装置系统的设计，并探讨了超声波辐照下工艺过程各影响因素与纳米碳酸钙粒径的关系。图示了反应体系的传热、传质效果及与粒径的关系。结果表明，影响压电超声在碳化法合成纳米碳酸钙的粒径主要因素有料浆初始温度、C a(O H )2乳液浓度、C O 2的流量。在自制的装置中，制备出10～30nm 优质的纳米碳酸钙产品，为纳米碳酸钙粉料的生产提供了另种方法。
이간헐탄화법제비납미탄산개적공예위기출，이압전초성파보조합성위방법，이실현공업화생산우질적납미탄산개위목적，학정료초성복조하납미탄산개적합성반응관결구급합성장치계통적설계，병탐토료초성파복조하공예과정각영향인소여납미탄산개립경적관계。도시료반응체계적전열、전질효과급여립경적관계。결과표명，영향압전초성재탄화법합성납미탄산개적립경주요인소유료장초시온도、C a(O H )2유액농도、C O 2적류량。재자제적장치중，제비출10～30nm 우질적납미탄산개산품，위납미탄산개분료적생산제공료령충방법。
This method is based on interm ittent carbonization method for preparation of nanometer calcium carbonate. It adopts piezoelectric ultrasonic assisted synthesis method, aims to realize industrialized production of high quality nanometer calcium carbonate, settles synthetic reaction tank structure and the design of synthetic gear system of nanometer calcium carbonate under ultrasound irradiation, and discusses the relationship between the influence factors and nano calcium carbonate particle size under ultrasonic irradiation process. The graph indicates the relationship between the heat transfer of reaction system , mass transfer effect and the particle size. The results show that the main factors affecting the particle size are initial tem perature of slurry, Ca (OH )2 slurry em ulsion concentration, and flow rate of CO2. In a homemade device, the high quality nano calcium carbonate products of 10 ~ 30 nm are produced, and this provides another method for the production of nanometer calcium carbonate powder.