Method for the production of ultrafine particles by electrohydrodynamic micromixing

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:

DePaoli, David W ^[1]; Hu, Zhong Cheng ^[1]; Tsouris, Constantinos ^[2]

Knoxville, TN
Oak Ridge, TN

Issue Date:: 2001-01-01

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

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Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T428/2989 - Microcapsule with solid core [includes liposome]

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
B01J13/0047 - {containing a metal oxide}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T428/2985 - Solid-walled microcapsule from synthetic polymer
Y10T428/2984 - Microcapsule with fluid core [includes liposome]

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
B01J13/0026 - {containing a liquid organic phase}
B01J13/0008 - {Sols of inorganic materials in water}
B01J13/0086 - {Preparation of sols by physical processes

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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.

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                    DePaoli, David W, Hu, Zhong Cheng, & Tsouris, Constantinos. Method for the production of ultrafine particles by electrohydrodynamic micromixing.  United States.

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                    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.

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@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

Matijevic, Egon
Chemistry of Materials, Vol. 5, Issue 4
https://doi.org/10.1021/cm00028a004

Mixing with an Electrostatic Field
journal, February 1962

Cropper, W. P.; Seelig, H. S.
Industrial & Engineering Chemistry Fundamentals, Vol. 1, Issue 1
https://doi.org/10.1021/i160001a009

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

Tsouris, Costas; Shin, Won-Tae; Yiacoumi, Sotira
The Canadian Journal of Chemical Engineering, Vol. 76, Issue 3
https://doi.org/10.1002/cjce.5450760331

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

Hoburg, J. F.; Melcher, J. R.
Physics of Fluids, Vol. 20, Issue 6
https://doi.org/10.1063/1.861967

Dielectrophoretic Process for Liquid-Liquid Mixing
journal, May 1966

Holland, B. O.
Industrial & Engineering Chemistry Fundamentals, Vol. 5, Issue 2
https://doi.org/10.1021/i160018a009

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

Li, Binghui; Gonzalez, Richard D.
Industrial & Engineering Chemistry Research, Vol. 35, Issue 9
https://doi.org/10.1021/ie9600046

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Similar Records

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

Abstract

Citation Formats

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

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