119348 ⎘
Obtaining copper; Preliminary treatment with modification of the copper constituent by roasting Sulfating or sulfiding roasting
RECOVERY METHOD FOR VALUABLE METALS IN COPPER ANODE SLIME
#2Oxygen injection in fluid bed ore concentrate roasting
#3Method of copper concentrate sulfation and leaching
#4METHOD FOR OBTAINING COPPER FROM CUPRIFEROUS ARSENOSULPHIDE AND/OR ANTIMONY SULPHIDE ORES OR ORE CONCENTRATES
#5METHOD FOR OBTAINING COPPER AND PRECIOUS METALS FROM COPPER-IRON SULPHIDE ORES OR ORE CONCENTRATES