As a especially effective collector for processing copper sulphide ore, methyl sulphonamide features good selectiveness and strong collection.

甲基氨酯作铜矿选矿的特别有效的捕收剂,具有选择好、捕收力强的特。

It was found that the sulphonamide group and the substituents on nitrogen atom within the molecule would effect the properties of these dyes.

坚牢度和光谱特,发胺基和在它的氮原子上的取代基会影响该类染料的能。