Results 231 to 240 of about 11,365 (265)
Some of the next articles are maybe not open access.
Improvement of thiosulfate stability in gold leaching
Mining, Metallurgy & Exploration, 2003Ammonium thiosulfate is a noncyanide lixiviant for gold leaching. However, the major problem with this leaching method has been the high consumption of reagents. To leach a mild-refractory copper-bearing gold ore, the authors used a reagent combination of 0.3M (NH 4 ) 2 S 2 O 3 , 0.03M CuSO 4 and 3M NH3 at pH 10.2 for 24 hours.
C. Xia, W. T. Yen, G. Deschenes
openaire +1 more source
ETHODOLOGICAL FOUNDATIONS OF ELECTROCHEMICAL GOLD LEACHING
News of the Tula state university. Sciences of EarthThe results of a study of new technologies for extracting goldfrom stubborn raw materials in filtration columns with modeling of leaching processes are presented. The prospects of electrochemical methods of metal extraction from solutions with a combination of electrochemical softening of solutions with electrodialysis desalination and concentration ...
openaire +1 more source
Cold-weather gold heap-leaching operational methods
JOM, 1997As techniques and operational philosophies have advanced, gold heap-leaching operations have moved into progressively colder regions. As such, various operational techniques or combinations of operating techniques are dictated by latitude and site topography. Cold-weather heap leaching can be grouped into two basic regions: arctic and near-arctic.
openaire +1 more source
Optimization of Catalysts and Conditions in Gold(I) Catalysis—Counterion and Additive Effects
Chemical Reviews, 2021Zhichao Lu, Sagar R Mudshinge, Bo Xu
exaly
Homogeneous and Heterogeneous Gold Catalysis for Materials Science
Chemical Reviews, 2021Kohei Sekine +2 more
exaly
Main Avenues in Gold Coordination Chemistry
Chemical Reviews, 2021Raquel P Herrera, M Concepción Gimeno
exaly