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Title: Method for the production of ultrafine particles by electrohydrodynamic micromixing

Abstract

The present invention relates to a method for the rapid production of homogeneous, ultrafine inorganic material via liquid-phase reactions. The method of the present invention employs electrohydrodynamic flows in the vicinity of an electrified injector tube placed inside another tube to induce efficient turbulent mixing of two fluids containing reactive species. The rapid micromixing allows liquid-phase reactions to be conducted uniformly at high rates. This approach allows continuous production of non-agglomerated, monopispersed, submicron-sized, sphere-like powders.

Inventors:
 [1];  [1];  [2]
  1. Knoxville, TN
  2. Oak Ridge, TN
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
OSTI Identifier:
873882
Patent Number(s):
6265025
Assignee:
Lockheed Martin Energy Research Corporation (Oak Ridge, TN)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
DOE Contract Number:  
AC05-96OR22464
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; production; ultrafine; particles; electrohydrodynamic; micromixing; relates; rapid; homogeneous; inorganic; material; via; liquid-phase; reactions; employs; flows; vicinity; electrified; injector; tube; placed; inside; induce; efficient; turbulent; mixing; fluids; containing; reactive; species; allows; conducted; uniformly; rates; approach; continuous; non-agglomerated; monopispersed; submicron-sized; sphere-like; powders; ultrafine particles; fine particles; organic material; placed inside; phase reaction; continuous production; reactive species; rapid production; turbulent mixing; phase reactions; fine particle; active species; approach allows; containing reactive; material via; tube placed; ultrafine particle; inorganic material; fluids containing; allows liquid; /427/264/428/

Citation Formats

DePaoli, David W, Hu, Zhong Cheng, and Tsouris, Constantinos. Method for the production of ultrafine particles by electrohydrodynamic micromixing. United States: N. p., 2001. Web.
DePaoli, David W, Hu, Zhong Cheng, & Tsouris, Constantinos. Method for the production of ultrafine particles by electrohydrodynamic micromixing. United States.
DePaoli, David W, Hu, Zhong Cheng, and Tsouris, Constantinos. Mon . "Method for the production of ultrafine particles by electrohydrodynamic micromixing". United States. https://www.osti.gov/servlets/purl/873882.
@article{osti_873882,
title = {Method for the production of ultrafine particles by electrohydrodynamic micromixing},
author = {DePaoli, David W and Hu, Zhong Cheng and Tsouris, Constantinos},
abstractNote = {The present invention relates to a method for the rapid production of homogeneous, ultrafine inorganic material via liquid-phase reactions. The method of the present invention employs electrohydrodynamic flows in the vicinity of an electrified injector tube placed inside another tube to induce efficient turbulent mixing of two fluids containing reactive species. The rapid micromixing allows liquid-phase reactions to be conducted uniformly at high rates. This approach allows continuous production of non-agglomerated, monopispersed, submicron-sized, sphere-like powders.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2001},
month = {1}
}

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Works referenced in this record:

Preparation and properties of uniform size colloids
journal, April 1993


Mixing with an Electrostatic Field
journal, February 1962


Pumping, spraying, and mixing of fluids by electric fields
journal, June 1998


Electrohydrodynamic mixing and instability induced by co-linear fields and conductivity gradients
journal, January 1977


Dielectrophoretic Process for Liquid-Liquid Mixing
journal, May 1966


Sol−Gel Synthesis and Catalytic Properties of Sulfated Zirconia Catalysts
journal, January 1996