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:
May. 01, 2007
Filed:
Mar. 05, 2002
Yingyan Zhou, Liaoning, CN;
Shoushan Gao, Liaoning, CN;
Hongxia LI, Liaoning, CN;
Kaiming Wang, Liaoning, CN;
Xiaoqi LI, Liaoning, CN;
Lixiang LI, Liaoning, CN;
Chuangeng Wen, Liaoning, CN;
Yingyan Zhou, Liaoning, CN;
Shoushan Gao, Liaoning, CN;
Hongxia Li, Liaoning, CN;
Kaiming Wang, Liaoning, CN;
Xiaoqi Li, Liaoning, CN;
Lixiang Li, Liaoning, CN;
Chuangeng Wen, Liaoning, CN;
Anshan University of Science and Technology, Liaoning, P.R., CN;
Abstract
The present invention discloses a process for producing nanometer powders, comprising the following steps: (a) providing reactant solution A and reactant solution B that can rapidly react to form precipitate; (b) continuously adding said solution A and solution B into a mixing and reacting precipitator with a stator and a rotor in operation, respectively; and (c) post-treating the precipitate-containing slurry discharged continuously from the mixing and reacting precipitator. The present process could produce nanometer powders with adjustable particle size, good homogeneity in size and good dispersity. The method also has the characteristics of high production yield, simplicity in process and low consumption of energy. It could be applied to produce various nanometer powders of metals, oxides, hydroxides, salts, phosphides and sulfides as well as organic compounds.