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:
Aug. 14, 2018
Filed:
Nov. 16, 2016
China University of Geosciences (Wuhan), Wuhan, Hubei, CN;
Chunjie Yan, Hubei, CN;
Sen Zhou, Hubei, CN;
Luru Jing, Hubei, CN;
Chen Liu, Hubei, CN;
Youfa Zhu, Hubei, CN;
Zhenhua Wang, Hubei, CN;
Xujian Li, Hubei, CN;
Tian Liang, Hubei, CN;
CHINA UNIVERSITY OF GEOSCIENCES (WUHAN), Wuhan, Hubei, CN;
Abstract
A method for recycling rare earth from a wastewater from rare earth mining or from rare earth smelting, includes the steps of: removing oil from the wastewater to obtain a degreased wastewater; purifying the degreased wastewater to obtain a purified wastewater using a pretreatment system; recycling rare earth from the purified wastewater to obtain a rare earth slurry and a low rare earth wastewater using a rare earth recycling tank; treating the low rare earth wastewater to obtain ammonia gas using an ammonium degassing device; and converting the ammonia gas to obtain aqueous ammonia using an aqueous ammonium preparing system.