Delayed multi-recycling system based on copper containing iron scrap

针对汽车电机铁芯、电器废料等含铜废铁的利用，提出了一种综合回收系统，该系统包括：（1）含铜废铁在铸铁厂用于生产铸造容器（Cu;含重金属的粉尘在容器中存放几十年，当重金属和铜作为人工资源变得有价值时，在此系统上，本研究取得了以下结果：（1）如果将含铁废钢带入铸铁厂，可以合理地进行普通铸铁件和容器的生产。（2）确定了含铜（Cu ≤ 7%）容器的铸造性能和抗腐蚀性能。(3)On推荐了提高容器内粉尘表观密度的方法，即不加热加压法。（4）当粉尘和/或容器变有价值时，重金属的回收可采用干法和湿法冶炼相结合的方法，铜的回收可采用熔融氧化法。有效利用废热。

To use copper containing iron scrap, e.g. motor core from car and electric apparatus scrap, is proposed the multi-recycling system, which is composed of ;(1)Copper containing iron scrap is used in iron casting works to produce cast container (Cu;≧7%),(2)Dust containing heavy metals is stored in the container for a few ten years,(3)When heavy metals and copper become valuable as artificial resources, elements will be recovered by smelting.On this system, next results are obtained by this study ;(1)If iron containing iron scrap is brought in iron casting works, production of both of normal iron cast and the container can be practiced reasonably.(2)Castinability and the anti-corrosion property of copper containing(Cu≧7%) container are confirmed.(3)On the method of increasing the apparent density of dust in the container, pressing without heating is recommended.(4)When dust and/or container become valuable, recovery of heavy metals can be practiced by the combination of dry and wet smelting, and that of copper can be carried out by melting and oxidation., using exhaust heat effectively.