Study on Vacuum Roasting Pretreatment of Carbonaceous Gold Concentrates Based on Nonoxidation Technology

Table 1

Chemical composition of the sample.

Element	Mg	Al	Si	P	S	Cl	K	Ca	V
Wt%	1.78	2.64	31.78	0.35	4.72	0.02	0.6	1.78	0.54
Element	Ti	Cr	Mn	Fe	Ni	Cu	Zn	Sr	Ba
Wt%	0.19	0.09	0.12	3.62	0.05	0.15	0.10	0.09	0.64
Element	Y	Zr	As	Hg	Sb	Se	Au(g/t)
Wt%	0.01	0.01	0.05	0.01	0.02	0.01	15.52