Central South University

Hunan Research Institute for Nonferrous Metals

Daixiong Chen

Wei Sun

Qiqi Zhou

Jianyu Zhu

Bo Hu

Yanhong Dong

Mengfei Liu

Chenyang Zhang

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.

Preparation of copper(II)-ammonia complex ion sulfidization activator and sulfidization flotation method for copper oxide ore

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Hunan, China

Daixiong Chen