The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 19, 2010
Filed:
Sep. 09, 2005
Chia-chen LI, Hsinchu, TW;
Mu-jen Young, Hsinchu, TW;
Ruey-fu Shih, Hsinchu, TW;
Ming-chang Wen, Hsinchu, TW;
Meu-hui Chang, Hsinchu, TW;
Chia-Chen Li, Hsinchu, TW;
Mu-Jen Young, Hsinchu, TW;
Ruey-Fu Shih, Hsinchu, TW;
Ming-Chang Wen, Hsinchu, TW;
Meu-Hui Chang, Hsinchu, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
The present invention discloses a process for preparing a hydrophobic fluid containing metal oxide nanoparticles dispersed therein such as heat transfer fluids or lubricant fluids, including introducing an alkaline aqueous solution (aqueous phase) and an organic solution of an organic acid metal salt (hydrophobic phase) into a rotating packed bed, the two solutions flowing radially through the rotating packed bed under a great centrifugal force, so that the aqueous phase and the hydrophobic phase contact with each other, reactants in the two phases undergo reactions at the interface of the two phases rapidly, and thus metal oxide nanoparticles are formed. The metal oxide nanoparticles stably dispersed in the hydrophobic phase, which is nanofluid.