Structure-Property Relation of Polyhydroxyl and Polycarboxylic Xanthate

5 Structure-Property Relation of Polyhydroxyl and Polycarboxylic Xanthate 

The influence of three kinds of polyhydroxyl xanthate and four kinds of polycarboxylic xanthate on arsenopyrite and pyrrhotite flotation are further examined in order to compare the effect of the depressant structure on their depressing action. The formulae of three polyhydroxyl xanthates are shown in Table 5.3 and their depression on arsenopyrite flotation is given in Fig. 5.34. It is obvious that the depressing ability of polyhydroxyl xanthates is in the order of GX3 GX2 GXl. The more the hydroxyl groups in the depressant polyhydroxyl 

2-hydroxyl ethyl dithio carbonic sodium GXl (HOICzHiOCSSNa 160 

3 dihydroxyl propyl dithio carbonic sodium GX2 (HOIzCjHsOCSSN 190 

five hydroxyl heptyl dithio carbonic sodium GX3 (HOIsCsHgOCSSN 280 

---