This article reports a method of preparation of metal-copper-powder with cuprammonia by directIy chemical method.

本文报导了一种用化学方法直接从氨溶液的方法。

This technology is used in the filtration of cuprammonia liquor in the cuprammonia wash section of an ammonia plant with satisfactory results...

该技术用于合成氨洗系统过滤氨液,使用效果令人满意。