精矿产量、品位和金属回收率是选矿生产中三个重要的技术经济指标。两年多来,在批林整风运动的推动下,我们紧密结合生产实际,学习和运用唯物辨证法,不断总结正反两个方面的经验教训,正确处理精矿产量、品位与回收率的辩证关系,努力寻求提高精矿产量、品位和回收率的有效途径。经过反复实践,现在这三项指标都有了显著提高。精矿产量:1972年达到130万吨,比1971年增长6.6%;1973年头 Concentrate production, grade and metal recovery rate are three important technical and economic indicators in beneficiation production. In the past two years, driven by the campaign of rectifying forests and rectifying the wind, we closely combined with the actual production, studied and applied the materialistic dialectics, and constantly summed up the positive and negative experiences and lessons and properly handled the dialectical evidence of the yield, grade and recovery of concentrate Relationship, and strive to improve the yield, grade and recovery of effective ways. After repeated practice, these three indicators have now been significantly improved. Concentrate production: in 1972 reached 1.3 million tons, an increase of 6.6% over 1971; the first of 1973