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加拿大EQuity Silver有限公司设计并制造应用了从银—金—铜浮选精矿中还原锑、砷的浸出装置。由于矿石中含有有害杂质砷和锑,使得长期销售合同应当得到的项目经费而不能得到。该浸出装置使资源利用得以开发。此装置始用于 1981年第三季度。
Canada EQuity Silver Ltd. designs and manufactures leaching plants for the reduction of antimony and arsenic from silver-gold-copper flotation concentrates. As the ore contains arsenic and antimony harmful impurities, making the long-term sales contract should receive the project funding can not be obtained. The leaching device enables exploitation of resources. This device was first used in the third quarter of 1981.