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:
Apr. 04, 2023
Filed:
Aug. 03, 2020
Hunan Research Institute for Nonferrous Metals, Hunan, CN;
Central South University, Hunan, CN;
Daixiong Chen, Hunan, CN;
Chenyang Zhang, Hunan, CN;
Wei Sun, Hunan, CN;
Bo Hu, Hunan, CN;
Jianyu Zhu, Hunan, CN;
Mengfei Liu, Hunan, CN;
Qiqi Zhou, Hunan, CN;
Yanhong Dong, Hunan, CN;
HUNAN RESEARCH INSTITUTE FOR NONFERROUS METALS, Changsha, CN;
Central South University, Changsha, CN;
Abstract
The disclosure relates to mineral processing, and more particularly to a copper(II)-ammonia complex ion sulfidization activator, and its preparation and application. A molar ratio of NHto Cuin the active ingredient of the copper(II)-ammonia complex ion sulfidization activator is 2:1-4:1. The preparation method includes: dropwise adding an ammonia solution to a copper salt solution; and adjusting the mixture to pH 6-7.2 with dilute sulfuric acid to obtain the copper(II)-ammonia complex ion sulfidization activator. During the sulfidization flotation for the copper oxide ore, the copper(II)-ammonia complex ion sulfidization activator is added and mixed uniformly with the ore slurry prior to the introduction of the sulfidizing agent.