Vapour phase hydrogenation of furfural was employed to produce 2 methylfuran through a copper ammonia complex catalyst.
采用负载型铜氨络合物催化剂进行糠醛气相加氢制2 甲基呋喃。
The property of copper-ammonia complex and its function mechanism on leaching of gold with ammonia and thiosulfate are discussed.
介绍了铜氨配合物的性质及其在氨和硫代硫酸盐浸金中的作用，分析并探讨了铜氨配合物的催化作用和氧化作用。
Cobalt can be converted into complex ion by excess ammonia and then recovered as highly pure metal cobalt powder by replacing with zinc powder.
所得少量浓缩液去掉铁等杂质之后，加过量氨使钴形成络合物，再用锌粉置换出金属钴粉。
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