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Study of processes of solubility of rare metal minerals and development of methods for trace elements determination in rocks associations, water, and soils

ABSTRACT

Report on the research project: 141 p., 4 chapters, 36 tables, 25 figures, 109 references.

The object of the research: rare elements in rocks, minerals, soils and natural waters.

The purpose of the research is to investigate the solubility processes in the "mineral-solution" system, which determine the entry of chemical elements into the migration cycle of the hypergenesis zone, and to determine the content of rare elements in rocks, water, and soils.

Research methods: general chemical analysis; atomic absorption analysis; potentiometric analysis, ICP-MS (using MX radiation during sample preparation), electron microscopy method.

The results of the conducted research complement the idea of the incongruent mechanism of weathering of accessory minerals, and their dissolution in the zone of hypergenesis and indicate the significant role of complex formation.

Solubility processes of accessory minerals Be, Zr, and Nb in solutions of mineral and organic acids were studied. Schemes of the decomposition of rocks and minerals for the determination of rare elements for the method of mass spectrometry with inductively coupled plasma (ICP-MS) have been developed.

New data on the content of rare elements in rocks, minerals, soils, and natural waters of Ukraine were obtained, which is important in determining the geochemical background.

The distribution of heavy metals, rare elements in the soil cover, and natural waters of urbanized, industrially polluted areas and conditionally clean landscapes was studied using biogeochemical indicators.

Authors:

Kuraieva Iryna Volodymyrivna

Samchuk Anatolii Ivanovych

Stadnyk Volodymyr Oleksiiovych

Krasiuk Olha Petrivna

Zlobina Kateryna Serhiivna

Akimova Oksana Rostyslavivna

Voitiuk Yuliia Yuriivna

Other authors:

Keywords:

solubility, rare elements, thermodynamic factors, gibbs energy, biogeochemistry, hydrogeochemistry

Head of the research:

Kuraieva Iryna Volodymyrivna

Samchuk Anatolii Ivanovych

Registration Card (RC):

0106U008932

Execution period of the research:

2007 - 2011