钴资源氨法回收研究进展

钴作为一种重要的战略资源,在合金材料、催化材料和电池材料等方面具有重要作用.在钴的典型湿法回收过程中,氨法浸出相比于酸法浸出,具有浸出液纯净、流程短、成本低等优点,在钴矿物的冶炼和二次资源的回收过程中都具有广泛应用.对近些年国内外钴资源的氨法回收过程进行了系统总结,包括氨浸原理、氨浸过程以及氨浸液中钴的回收.在氨浸过程...

Ammonia recovery of research progress of cobalt resources

As an important strategic resource, cobalt plays an important role in alloy materials, catalytic materials and battery materials. In the typical hydrometallurgical recovery process of cobalt, ammonia leaching has the advantages of pure leaching solution, short process, and low cost. It is widely used in the smelting of cobalt minerals and the recovery of secondary resources. The ammonia recovery process of cobalt resources at home and abroad in recent years have been systematically summarized in this article, including the principle and process of ammonia leaching, and the recovery of cobalt in the ammonia leaching solution. In the ammonia leaching process, the right choice of ammonia-ammonium salt leaching system is very important, and according to the composition of the raw materials, add a certain reducing agent or oxidant to increase the leaching rate. The current methods for recovering and preparing cobalt products from ammonia leaching liquid still have disadvantages such as high cost and small processing volume. Therefore, developing efficient and economical methods for recovering and preparing cobalt products from ammonia leaching liquid will become the focus of future research.