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。
The test above demonstrates that this method is suitable for removing complex chemical industrial type ammonia nitrogen wastewater.
试验证明该工艺比较适用于复杂的化工类氨氮废水的去除。
Fibrous cobalt complex, a precursor of fibrous cobalt powders, can be prepared by coordination precipitation, using ammonia, oxalate and cobalt chloride as the raw materials.
以氨水、草酸和氯化钴为原料，通过配位沉淀制备得到了纤维钴粉前驱体———纤维状复杂钴盐粉末。
Until recently, the findings of anaerobic oxidizing (anammox) bacteria and ammonia-oxidizing archaea (AOA) indicate that ammonia oxidation and the prokaryotes participate in this process are complex.
近年来厌氧氨氧化细菌和氨氧化古菌的发现，提示环境中氨氧化过程及其微生物驱动者的复杂性。
Using ammonium carbonate to produce complex fertilizer is one of ways to adjust product structure for small size ammonia plant.
把碳铵加工成复肥，是小氮肥厂调整产品结构的一种选择。
Using ammonium carbonate to produce complex fertilizer is one of ways to adjust product structure for small size ammonia plant.
把碳铵加工成复肥，是小氮肥厂调整产品结构的一种选择。
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