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.
本文巯基乙
的合成工艺进行
研究,认为硫氢化钠法和硫代硫
钠法生产成本低,适宜于
矿用巯基乙
的生产,而硫脲法可得到
高浓度的巯基乙
。
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.
本文巯基乙
的合成工艺进行
研究,认为硫氢化钠法和硫代硫
钠法生产成本低,适宜于
矿用巯基乙
的生产,而硫脲法可得到
高浓度的巯基乙
。
Three maceral groups,vitrinite,fusinite and exinite,seperated from Britain coal and their gasification kinetics in CO2 have been investigated by TGA at the pressure of 0.
英国煤进行
显微组分的分离富集,得到
镜质组、丝质组和稳定组三种富集物。
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