Gas Phase Manufacture of Particulates in Aerosol Reactors

气溶胶反应器中颗粒物的气相制造

• 批准号: 8908197
• 负责人: Sotiris Pratsinis
• 金额: $ 9.5万
• 依托单位: University of Cincinnati Main Campus
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-10-01 至 1992-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8908197&HistoricalAwards=false
• 关键词: Gas; Phase; Manufacture; Particulates; Aerosol

This research is an experimental and theoretical study of the interplay of reaction kinetics (both homogeneous and particle surface controlled) with aerosol dynamics (particle growth, coagulation, migration, and deposition) in aerosol reactors and the influence of these factors on product powder characterization. Special emphasis will be placed of the effect of dopants on the size distribution of the resulting particles. As a case study, production of titanium oxide powders formed by the oxidation of halide vapors in a furnace reactor will be investigated by FTIR spectroscopy, near real time aerosol sizing, and microscopy of captured particles. Aerosol reactors are used in manufacture of carbon blacks, pigments, powders for advanced ceramics, and lighwave guides. Current design of such reactors is largely empirical. This research should help put the design of such reactors on a firmer basis and lead to greater quality control of the powder produced.

本研究是一项实验和理论研究， 反应动力学相互作用（均相和颗粒 表面控制）与气溶胶动力学（颗粒生长， 凝结、迁移和沉积）在气溶胶反应器中 以及这些因素对产品粉末的影响 特征化 将特别强调 掺杂剂对所得到的 粒子 作为案例研究， 卤化物蒸气在炉中氧化形成的粉末 反应器将通过FTIR光谱法进行研究，接近真实的 时间气溶胶大小测定和捕获颗粒的显微镜检查。 气溶胶反应器用于制造炭黑， 颜料、高级陶瓷粉末和光波导管。 目前这种反应堆的设计主要是经验性的。 这 研究应该有助于把这种反应堆的设计放在一个 更坚实的基础，并导致更好的粉末质量控制 制作。