Red Dog Mine

The Red Dog zinc/lead deposit in northwest Alaska is the second largest zinc deposit ever discovered. Being developed by Cominco Alaska with startup scheduled for

Read More »

Slags as Ceramic Raw Materials

Slags generated by the ferrous-metals industry can be used to produce high-tech ceramic materials. The properties of these ceramics can be controlled by judicious choices

Read More »

Copper Oxide In-Situ Leaching Wellfield Design

Table of ContentsComponents of Wellfield DesignGeological ConsiderationsWell Completion MethodsCopper Recovery and Sweep EfficiencyCopper Loadings and Reagent Consumption Copper oxide deposits that may be considered for

Read More »

Acid Rain and Smelter Agreement

Table of ContentsCopper Price Changes and ProfitabilityThe Mexican-American Smelter AgreementU.S. Leaching Acid Disposal and Smelter AvoidanceSO2 Pollution ControlImpacts of Early Smelter Closure In July 1985,

Read More »

Carbonate Buffer in Soil

Data from analysis of mineralogy, water extracts, and groundwater demonstrate the significance of the neutralization of the acid from the tailings by the carbonate in

Read More »

Heap Leach Solution Irrigation

Table of ContentsDrip Tubing InstallationOperational Benefits of Drip Irrigation Drip Irrigation Disadvantages The application of drip irrigation in Heap Leach,  has been proven to be a significant improvement

Read More »

Vacuum Induction Melting

Table of ContentsIngot MeltingIngot ProcessingPreparation of Test SpecimensTest Procedure and ResultsTensile TestsCharpy V-Notch TestsFatigue Tests The effect of fluoride inclusions on the properties of titanium

Read More »

Electrowinning Mercury in Gold Pregnant Solution

Table of ContentsLaboratory InvestigationsElectrolytic Cell DesignTest ProcedureTests Using Steel Wool Cathode Synthetic GoldSynthetic SilverTests Using Mercury-Coated Cathode MaterialsSteel WoolPlatinum FoilCopper PlateCopper WoolTests using Mill Solutions and

Read More »