Mass production of nanoparticles by high gravity reactive precipitation technology with low cost--颗粒学报PARTICUOLOGY

Chen, J., & Shao, L. (2003). Mass production of nanoparticles by high gravity reactive precipitation technology with low cost. China Particuology, 1(2), 64-69. https://doi.org/10.1016/S1672-2515(07)60110-9

Mass production of nanoparticles by high gravity reactive precipitation technology with low cost

Jianfeng Chen ^*, Lei Shao

Research Center of the Ministry of Education for High Gravity Engineering and Technology, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China

10.1016/S1672-2515(07)60110-9

Volume 1, Issue 2, June 2003, Pages 64-69

Received 19 February 2003, Accepted 18 March 2003, Available online 27 November 2007.

E-mail: chenjf@mail.buct.edu.cn

Highlights

Abstract

Mass production of nanoparticles at low cost has attracted much attention from industrial and academic circles. In this paper, a novel method, the high gravity reactive precipitation (HGRP) technology, of manufacturing CaCO₃ nanoparticles, presently scaled-up to an annual capacity of 10,000 tons, is presented. This paper describes the process principle, the process design and experiments on the syntheses of 15-30 nm CaCO₃, 30-50 nm SiO₂, 20-30 nm TiO₂, 20-60 nm ZnO, 20-30 nm ZnS, 30 nm SrCO₃, 40-70 nm BaTiO₃, stick-like nano BaCO₃ as well as nano-fibrillar aluminum hydroxide measuring 1-10 nm in diameter and 50-300 nm in length, using liquid-liquid, gas-liquid and gas-liquid-solid reactant systems. The advantage of using the HGRP technology is illustrated by comparison to conventional methods.

Graphical abstract

Keywords

nanoparticles; high gravity reactive precipitation; rotating packed bed; synthesis

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