Cominco公司已开发出一种湿法炼铜新工艺。利用该工艺从精矿中提铜不会产生废气和粉尘。comhco公司正在寻找机会拟将其投入工业规模的应用。据悉，Cominco下属的工程公司开发和试验这项称之为CESL的湿治技术共耗资3000万加元，历时5年。C0minco’k司称，该技术是由几项成熟的已 Cominco company has developed a new wet-process copper technology. Using this process to extract copper from concentrate does not produce exhaust gas and dust. comhco company is looking for opportunities to put it into industrial scale applications. It is reported that Cominco subsidiary engineering company to develop and test this called CESL wet treatment technology cost a total of 30 million Canadian dollars, which lasted 5 years. C0minco’k Division said that the technology is made up of several mature already