Output list
Other
Published 2014
Patent, WO 2014030048 A1
A process of extracting copper from copper sulphide minerals which is enhanced at solution potentials exceeding 700 mV SHE, in the absence of any microorganism, by contacting the minerals in a pre-treatment phase using an acid solution at a high chloride content containing dissolved copper.
Other
A chloride method for bioleaching
Published 2012
Patent, WO 2012001501 A1
A method of recovering copper wherein a copper sulphide mineral is subjected to a chloride leach cycle, and then to a bioleach cycle in which the mineral is heated with a chloride-containing solution from the chloride leach.
Other
Recovery of platinum group metals from platinum group metal-containing materials
Published 2011
Patent, WO 2011/140593 A1
There is provided a process for extracting platinum group metals from a platinum group metal-containing material, in particular spent automotive catalyst. The process involves roasting said material under oxidative conditions and further roasting said material under reducing conditions, then contacting said roasted material with a chloride leaching solution in the presence of an oxidising agent to produce a leachate solution containing he platinum group metals. The platinum group metals may be recovered from the leachate solution by subjecting the leachate solution to conventional recovery techniques, such as electrowinning, solvent extraction, gas-reduction or adsorption, and in particular cementation.
Other
Published 2007
Patent, WO 2007134344 A1
A tank leaching method to recover copper from a slurry of a copper sulphide mineral concentrate and an acidic or mixed chloride/sulphate solution. Leaching takes place in the presence of dissolved oxygen and the surface potential of the mineral is maintained below 600 mV (vs. SHE).
Other
Recovery of nickel from laterite ores
Published 1996
Patent, 1 - 17
No abstract available
Other
Acid leaching of rare-earth metals from oxide ores or sludges
Published 1989
Patent, 1 - 20
No abstract available
Other
Measurement of the concentration of carbon particles in suspensions thereof
Published 1983
Patent, 1 - 18
No abstract available
Other
Measuring rates of dissolution
Published 1974
Patent, 1 - 15
No abstract available
Other
Measuring the concentration of a constituent in a chemical reaction mass
Published 1974
Patent, 1 - 14
No abstract available