Application No. / Patent No.: 95111223
The present invention provides a direct production of copper sulfate with copper technology, including ore crushing,

extraction, filter press, separation, transformation, washing, concentration, crystallization, drying and other processes.

Its characteristics are that the process suitable for any type and the high, low copper, nitrate, or nitrate as a catalyst to

sodium sulfide or copper sulfide precipitation for separation of agent, without high temperature baking can be produced

directly using Tong Kuang Liu Suan copper, and may incorporate the silica and ferrous sulfate, copper harvest rates of up to

80 ~ 90%, the product quality better than the industry level. Investment big or small, margin for the cost of 2 times
Especially suitable for the development and utilization of low grade copper ore.
Filing date: January 20, 1995
Open Date: July 24, 1996
Authorized the announcement date:
The applicant / patentee: Leshan City Star Chemical Institute
Applicant Address: Sichuan Leshan City Guanying Town
Inventor Design by: Zhiqiang; Maohua Lin
Patent Agent: Patent Office of Leshan City
Agent: Yong Li Ke
Patent Type: Patent
Key words: C01G3/10