Titration of Cyanide Solutions
Cyanide Leaching

Cyanide Solution Strength Test

The strength of the cyanide solutions is tested by silver nitrate, using 10 c.c. of the strong and weak solutions respectively (diluted to about 100

Read More »
Gold Extraction

Chemical Precipitation on Mercury

The Chemical Precipitation on Mercury of the Gilmour – Young Process is a method that has been employed at the Santa Francisca Mine, Nicaragua. The ore

Read More »

Cyanide in the Stamp Battery

Use of Cyanide in the Stamp Battery to treat the ore direct from the stamp milling battery instead of first passing it over amalgamated plates. Ore

Read More »
Gold Extraction

Treatment of tellurides without roasting

Table of ContentsTreatment of ConcentratesTreatment of Ore Slimes by Filter PressingTreatment of Sulpho-Telluride Ore Among other suggestions for rendering the presence of oxygen in cyanide

Read More »
cyanide-arrangement
Cyanide Leaching

Zinc Dust Precipitation

The Merrill System or method or Zinc Dust Precipitation was introduced in 1897 at Marysville, Montana; in the plant of the Montana Mining Co., and subsequently at

Read More »
hydraulic-jaw-crusher
Crushing & Screening

Rock Crushers

This invention relates to jaw rock crushers. In such known crushers, eccentrics or unbalanced rotors drive one or two oppositely situated swing jaws. The disadvantage

Read More »
Average amount of gold in tailings
Gold Extraction

Gold Chlorination Process in VAT

Table of ContentsThe Munktell Chlorination ProcessThe Cassel-Hinman Bromine ProcessPermanganate Chlorination ProcessChlorination The Munktell Chlorination Process This method was devised by W. Munktell, who seems to

Read More »
Theis Process
Gold Extraction

The Barrel Gold Chlorination Process

Table of ContentsWorking Principles of Barrel ChlorinationMechanical Difficulties of LeachingHow Gold Precipitates after ChlorinationFerrous SulphateSulphuretted HydrogenSulphurous AcidCharcoalCopper Sulphide and Iron SulphideElectrical PrecipitationHow Barrel Chlorination WorksBromination The

Read More »
The Vats
Gold Extraction

Plattner Gold Chlorination Process

Table of ContentsPlattner Chlorination Process How to Use the Plattner Chlorination ProcessChlorination VatsHow to Load Ore in the VATSHow to Generate Chlorine GasOre Impregnation Time by Chlorine GasChemical Reactions

Read More »