TGA

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.

对英国煤进行了显微分分离富集，得到了、丝和稳定三种富集物。

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.

本文对巯基乙酸合成工艺进行了比较研究,认为氢化钠法和酸钠法生产成本低,适宜于选矿用巯基乙酸生产,而脲法可得到较高浓度巯基乙酸。