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:
Dec. 11, 2018
Filed:
Apr. 24, 2016
Applicant:
Yadian Xie, Painted Post, NY (US);
Inventors:
Yadian Xie, Painted Post, NY (US);
Duygu Kocaefe, Chicoutimi, CA;
Wei Liu, Guiyang, CN;
Shuai Zhang, Shenzhen, CN;
Yuanyuan Sun, Shenzhen, CN;
Assignee:
Other;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C22B 3/26 (2006.01); C02F 1/00 (2006.01); C22B 21/00 (2006.01); C22B 3/42 (2006.01); C22B 3/44 (2006.01); C22B 59/00 (2006.01);
U.S. Cl.
CPC ...
C22B 21/0023 (2013.01); C02F 1/00 (2013.01); C22B 3/0005 (2013.01); C22B 3/42 (2013.01); C22B 3/44 (2013.01); C22B 59/00 (2013.01);
Abstract
An object of the present invention is to provide a novel method for extracting ultra high purity alumina from wastewater. Wastewater is recycled, filtered, concentrated and pretreated in order to mix with alkali solution and extraction agent PX-17, undergoing 2 times of purification, adding control agent SX-1 and high temperature heat treatment to finally obtain ultra high purity nano-alumina particles which purity reaches as 99.999% and particle size reaches as 20˜200 nm.