The object of this invention is to overcome the deficiency of the present technology, and to provide a method of utilizing copper circuit board liquid waste to produce high purity copper sulfate, which is low cost, high efficiency, low energy consumption, well effect of cleaning impurity, high purity of the finished product.

Feature of the invention is to make the traditional preparation of the crude copper sulfate and recrystallization copper sulfate into one process, reducing the process to improve the efficiency; Meanwhile, integrating three steps of highly efficient impurity removal in the process to improve product purity effectively. At the same time in the preparation of copper sulfate process, you can control the size of the final product particle to meet different customer requirements, so the process has good social and economic benefits.

We have applied for patent protection for the technology, patent application number: 201210312805.0