This thesis mainly introduced that ureas and semicarbazides were synthesized by oxidation of corresponding thioureas and thiosemicarbazides using 30% peroxide as oxidant.
本文主要介绍了以30%浓双氧水作为氧化剂氧化硫脲、氨
硫脲来制备相应
脲和氨
脲类化合物。
This thesis mainly introduced that ureas and semicarbazides were synthesized by oxidation of corresponding thioureas and thiosemicarbazides using 30% peroxide as oxidant.
本文主要介绍了以30%浓双氧水作为氧化剂氧化硫脲、氨
硫脲来制备相应
脲和氨
脲类化合物。
Using sodium hydrosulphide or sodium thiosulfate as materials,the production cost of TGA is low.While,a high content of TGA can be obtained with thiourea as reactant.
本文对乙酸
合成工艺进行了比较研究,认为硫氢化钠法和硫代硫酸钠法生产成本低,适宜于选矿用
乙酸
生产,而硫脲法可得到较高浓
乙酸。
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