The results of studies on sulphatization refinement of mattes, containing platinum metals, it. The perspective of technology concentration of platinum metals from the products of processing man-made waste on a scheme «smelting matte – sulphatization» are justify.
Shows the shortcomings of traditional roasting-selenide technology of extraction of selenium. The results of studies on the development of reagentless electrochemical method of removing it. A basic technological scheme of obtaining technical selenium in terms of electroextraction was offer.
A thermodynamic analysis of the system Se – H 2 O was prospect. Plotted dependences the concentrations of selenium oxyanions from the pH of the solution and polarization graphs for various materials of the anode. Draw conclusions about the regularities of selenium electroextraction from selenium solutions.
A review of prospective industrial sources of platinum metals and modern technologies to process them has been done. The need for introducing new methods of involvement in the production of man-made platinum-containing materials has been substantiated.
The results of studies on the intensification of the process of sorption extraction of iridium with highly basic anion exchanger AMP from sulfate solutions has been done. The effect of oxidant on the parameters of sorption of iridium has been described. Dependence of extraction of iridium in the sorbent from the temperature of the process and flowing anionite has been established. The perspective of the method of anionite sorption of platinum metals with highly basic sorbent AMP has been proved.
В настоящее время для разработки пологонаклонных пластов создано и разрабатывается значительное количество механизированных комплексов, разделенных условно на три поколения ...