An Overview of Technologies and Selective Depressing Agents for Separating Chalcopyrite and Talc : Table 1

Table 1: Depressors for talc.

Classification	Agent name
Organic compounds	Carboxymethylcellulose [9,37-39]
	Chitosan [40,41]
	Guar gum [9,11,42-45]
	Locust bean gum [40,41]
	Gum arabic [46]
	Sesbania gum [47]
	Tragacanth gum [48]
	Galactomannan [49]
	Lignosulfonate [50-53]
	Dextrin and modified starch [54,55]
Inorganic salts	Combination of ZnSO₄ and Na₂CO₃ [56]
	Metal salts containing Al³⁺, Cr³⁺,Mg²⁺, Ca²⁺, etc. [10,51,55]
	Water glass, sodium hexametaphosphate, etc. [57,58]