A hydrometallurgical testing program to define the basic criteria, like recovery and sulfuric acid consumption, for a commercial heap leach system design, to process the oxide Copper (Chrysocola). Leach parameters such as, amount of sulfuric acid in the cure solution, cure technique, particle size of the material, leach solution’s flowrate application, leach solution’s acid strength … Read more
The test method developed to determine the permeability of ore under increased confining pressure was modified from the Bureau of Reclamation test standard, Designation E-14 (Bureau of Reclamation, 1974). The test apparatus consists of a 12 inch diameter steel cylinder, bottom porous stone, base plate with a drain, porous top plate, reaction frame, and a … Read more
In the environmental treatment field, if the water hyacinth root is to be considered as a viable treatment method for metal-bearing waste streams, sorption data and the corresponding isotherm parameters must be generated and made available to the scientific and engineering communities. The maximum sorption uptake value is an important feature of the sorbent characterizing … Read more
Preparation of ZrO2 from ZrCl4: The products of chlorinated zircon which consist mainly of zirconium tetrachloride and silicon tetrachloride are collected under the afore-mentioned conditions. This collected ZrCl4 is calcined at 900°C for 1 hour to produce commercial grade of ZrO2. Fig. (5) shows that a maximum recovery of ZrO2 of – 92% is obtained from … Read more
In view of the poor floatabilities of fine particles their treatment prior to flotation becomes essential and aggregation is a means for improving the recoveries. Many of the variables which govern the flotation process also influence the aggregation mechanism and may be classified into physical, chemical and geometrical. Earlier investigations report the effects of particle … Read more
Some copper deposits presents a small amount of fluorine associated with copper sulfide ores. Depending on the initial fluorine content and the mineralogical characteristics of the ore, the fluorine may report to the copper concentrate as an impurity. Fluorine levels of more than 200 ppm are subject to penalties in their commercialization. The presence of … Read more