Oxidative fluorination of iridium metal for urban mining: Kinetic studies

The process of oxidative fluorination of a compact iridium metal has been studied. For this purpose, tetrafluoridobromates(III) of alkali and alkaline-earth metals were chosen as oxidizing agents with numerous advantages. The main results of this work include the kinetic dependencies for the two following processes: 1) interaction of iridium with molten potassium tetrafluoridobromate; and 2) interaction of iridium with a solution of potassium tetrafluoridobromate in liquid bromine trifluoride. In both cases it has been found out that iridium can be transformed into its soluble fluorinated derivative; the reaction with molten potassium tetrafluoridobromate proceeds almost 50 times faster (in comparison to the interaction in BrF3 solution) and can be potentially applied for the practical purposes

Development of module of automatic chromatography data systematization for increasing the efficiency of trade gasoline blending process

The main aim of the study is to increase the efficiency of gasoline blending process counting the changes of feedstock, influencing on qualitative characteristics of trade gasolines. The counting became possible using computer program of gasolines octane numbers calculation "Compounding" in conjunction with the developed module of automatic chromatographic analysis data systematization. The relevance of the study is caused by the need to increase production volumes of trade gasolines that meet gasoline quality standards. Practical results: the extended formalized set of 110 hydrocarbon components, key contributors in gasoline octane number formation, was created applying the method of mathematic modeling. The new module of automatic chromatography analysis data systematization was developed in Borland "Delphi 7" workspace. In conjunction with program of gasoline octane numbers calculation "Compounding" it provides to develop blending recipes of trade gasolines marks Regular-92, Premium and Super-98, corresponding to the current Euro-2, Euro-3, Euro-4 and Euro-5 quality standards. Implementation of the module allows taking into account changes feedstock composition, varying the recipes of trade gasolines blending and formulating recommendations for involving different-composited feedstock into the blending process. Precision of the developed recipes provides the economy of expensive components, and allows getting essential economic benefit for refineries