The influence of hydrothermal conditions on synthesis of analcime and a composite material ZrO2- analcime as well as zirconomolybdate coverings with ion exchange properties was studied using narrow fractions of aluminosilicate microspheres with a high content of a glass phase (91-95 wt. %). The possibility to synthesize ZrO2-analcime composites of narrow particle size distributions with maximum of about 40 μm and 6 μm under hydrothermal treatment at 150 °С was demonstrated starting from microspheres with Si/Al=2.7 and applying different regimes of a reaction mixture agitation. A microsphere material of a “core-shell” type such as ZrMo2O7(OH)2(H2O)2@(SiO2-Al2O3)glass with the nanostructured covering was prepared. Sorption properties of the materials regarding Nd3+, Sr2+ and Cs+ were studied under equilibrium conditions by means of determination of sorption isotherms and their fitting by the Langmuir model. Sorption parameters were determined including distribution coefficients which reach the values of 104−105 mL/g
When resolving cross-border disputes, courts inevitably face the need for legal qualification of the dispute. The complexity of the process of qualifying disputed legal relations is due to many reasons, such as the need to consider the content of foreign law, the presence in different jurisdictions of different mechanisms of the legal qualification of legal relations, as well as the level of development of private international law in a particular country. The features of various types of qualifications have been studied in this paper, taking into account the current trends in the development of private international law. Methods: The disclosure of the topic was carried out from the standpoint of general scientific methods (sociological, systemic, structural-functional, historical), the method of theoretical analysis, special scientific methods (comparative jurisprudence, technical and legal analysis, concretization, interpretation). The methodological basis of the study was the method of the theory of knowledge. The purpose of the study: To determine the essence of the legal qualification of private international relations, analyze the various stages of the legal qualification of cross-border relations in the Russian jurisdiction, identify their features, and formulate the rules of qualification that have applied significance based on the norms of positive law and the Russian doctrine. Results: The stages of the legal qualification of cross-border relations were identified, its essence was determined, and the signs of legal qualification for certain contractual obligations were revealed. The paper analyzes the current capabilities of the lex fori and lex causae qualification methods, as well as justifies the prospects and advantages of independent qualification methods.
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