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Technical transformation of Yunnan Copper Co.'s sulphuric acid systems

XU Yimin ( Yunnan Copper Co., Ltd., Kunming,Yunnan, 650102 , China)  
The technical transformation of Yunnan Coppers 4 sulphuric acid systems with a total design capacity of 428 kt/a is described including the retrofit of electrostatic precipitator, packed tower and converter and installation of treatment devices for sewage and tail gas. The total design capacity rose to 590 kt/a and both water effluent and SO, emission were up to national standards.
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