Jan 01, 1989· The lead antimony sulphides appear to have properties resembling those of galena, which implies poorer flotation at high pH and the possibility of depressing them with dichromate . Where dichromate is used for subsequent separation of a copper lead concentrate, this means that the lead antimony minerals will wind up in the lead concentrate.

Dec 01, 2020· The refractory gold ore at Wiluna has been a challenge for more than a century. A novel method of treating the most refractory ore using smelting was developed in the mid 1930s and implemented until the recovery of a more conventional method used for the majority of the ore was improved sufficiently toe more economic than smelting.

24. 1000kg / 24 ,273.10 USD 25kg / 24 ,273.10 USD. Quantity. Add to Quote. Product Attachments. Product detail description. Lead Nitrate 99 is used for activation of antimony sulphide minerals and to reactivate copper sulphides depressed with cyanide.

United States Antimony Corporation USAC NYSE uamy is a rapidly growing naturalpany that is increasing its raw material supply of antimony from properties in Mexico and third parties around the world. USAC has produced various antimony products since 1969 and is a fully integrated mining, transportation, milling, smelting, andpany. USAC