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Method for the production of ultrafine particles by electrohydrodynamic micromixing

United States Patent

July 24, 2001
View the Complete Patent at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
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.
DePaoli; David W. (Knoxville, TN), Hu; Zhong Cheng (Knoxville, TN), Tsouris; Constantinos (Oak Ridge, TN)
Lockheed Martin Energy Research Corporation (Oak Ridge, TN)
09/ 398,108
September 16, 1999
GOVERNMENT LICENSE RIGHTS This invention was made with Government support under Contract No. DE-AC05-96RO22464 awarded by the U.S. Department of Energy to Lockheed Martin Energy Research Corp., and the Government has certain rights in this invention.