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近年来,从煤矸石(洗矸)中回收硫铁矿的工作受到了各级领导部门的极大重视,为了完成回收煤系硫铁矿的任务,在全国煤炭系统有条件的地区应大力开展选硫工作。
In recent years, the work of recovering pyrite from coal gangue (washed gangue) has drawn great attention from leading departments at all levels. In order to complete the task of recovering coal-based pyrite, it should be vigorously carried out in areas where the coal system in the country is qualified Sulfur election work.