1 - 25 of 4
Number of results to display per page
CreatorTitleDescriptionSubjectDate
1 Miller, Jan D.Gold flotation from Colorado River sand with the air-sparged hydrocyclonePilot-scale tests indicate that effective concentration of fine gold from Colorado River sands can be achieved by flotation with the air-sparged hydrocyclone. The fine sands (55% -kOQ mesh and 0 01 opt *) from gravity concentration were processed with a 5-cm air-sparged hydrocyclone (capacity -1.0 t...Gold; Hydrocyclones; Sand; Flotation1986
2 Miller, Jan D.Solvent extraction reagents for gold recovery from alkaline cyanide solutionsThree different solvent extraction systems for the recovery of gold from alkaline cyanide solutions are reviewed. These include the modified amine extractants in which the basicity of simple alkyl amines, with respect to the aurocyanide anion, is controlled by the addition of alkyl phosphorous ester...Solvents; Extraction; Gold; Alkaline cyanide; Amine extractants; Solvating extractants; Substituted guanidines1993
3 Miller, Jan D.Significance of graphitic structural features in gold adsorption by carbonThe nature of surface sites for the adsorption of gold from alkaline cyanide solutions has been investigated using samples of synthetic, highly-oriented pyrolytic graphite (HOPG). This HOPG material offers an idealized graphite structure enabling the independent study of the graphitic basal-plane ...Graphite carbons; Gold; Adsorption1992
4 Miller, Jan D.Spectroscopic analysis of passivation reactions for carbonaceous matter from carlin trend oresAbstract. Three different refractory carbonaceous gold ores from the Carlin operation in northeastern Nevada were investigated to characterize the effect of passivation treatments on the nature of the carbonaceous material. The carbonaceous material was chemically isolated from the ores and pass...Gold; Chlorine; Cyanidation1990
1 - 25 of 4