Synthesis of Nanoparticles with Novel Technology: High-Gravity Reactive Precipitation

摘要: On the basis of analysis key engineering factors predominating in a reactive precipitation process, new method called high-gravity (HGRP), which means that takes place conditions, is presented here for massive production nanoparticles. A rotating packed-bed reactor was designed to generate acceleration higher than gravitational on Earth. The syntheses nanoparticles CaCO3, aluminum hydroxide, and SrCO3 were employed demonstrate advantages industrial potentials this technology, where typical gas−liquid−solid, gas−liquid, liquid−liquid multiphase reaction systems involved. Experimental results show mean size CaCO3 particles can be controlled adjusted range 17−36 nm through change operation conditions such as levels, fluid flow rates, reactant concentrations. Nanofibrils hydroxide 1−10 diameter 50−300 le...