VMS Volcanogenic Massive Sulphide Ore Deposits & Mineralization

VMS_Volcanogenic_Massive_Sulphide_Ore_Deposits_&_Mineralization

If we start with VMS Volcanogenic Massive Sulphide Ore Deposits and their Mineralization we see from this image shows some of the sulphide chimneys associated with the model black smoker VMS deposit. VMS will emit black plume of hot water venting from one of the chimneys. You’ll remember this cross section from reads on both porphyry deposits and epithermal, […]

How to Separate Copper from Lead by Cu Depression

Lead_Concentrate_and_Copper_Depression_from_Reverse

  How you separate Pb from Cu depends on how much of each metal is present.  You best depress the metal that’s the most present, the metal you have the most of & you float the metal you have the least of. In this case, flotation of a small amount of lead from the copper concentrate would […]

What Ore Testing is Required For Mill Selection

bond operating work index

Beginners might ask what grinding test data is required in order to properly size a grinding mill. After the grind requirements are established, testing for the selec­tion of comminution circuits and mill size can be initiated and can include the following: Primary Autogenous Media Competency Primary Autogenous and Semi-Autogenous Pilot Plant Secondary Autogenous (Pebble) Testing […]

Copper Assay Method Review

Sodium Peroxide Fusion ICP

If we review the Code 8-Peroxide ICP-Sodium Peroxide Fusion ICP (Sodium peroxide fusion, acid dissolution followed by ICP/OES) This method is fine for the copper total assay. That is all that should be used for the balances of flotation tests. If taking the copper sulphide number (Cu(s)) ie: the total copper number and subtracts the “copper […]

Flotation Foam

Character

The process depends upon the fact that minerals with a metallic lustre, when treated in the form of a wetted pulp, adhere to oil, while earthy minerals do not. Two distinct operations are involved; first, the separation of the metallic mineral from the gangue by means of oil; second, the extraction of the mineral from […]

Galvanox Copper Leaching Process

galvanox process

  The following is a description of the testing procedure for scoping studies for candidate Galvanox Process materials and concentrates. This document will cover both the procedure for individual tests as well as considerations and strategies for testing regimes. Galvanox testing regimes will be different depending on the mineralogy, grade, particle size distribution, pyrite:chalcopyrite ratio […]