Looking for Partnership
Looking for Lead Partner
We, the scientific group of the Institute of Chemistry of the Academy of Sciences of Moldova (Moldova is an associated country), have a large experience in participating in different international projects, inclusive FP7 and H2020. We are looking for a leader of the Consortium, to be a part, for the call: CE-SC5-01-2018: Methods to remove hazardous substances and contaminants from secondary raw materials, RIA Research and Innovation action, two-stage, 27 February 2018 17:00:00. Our Contribution: The optimal conditions for achieving the innovative hydrometallurgical-electrochemical process will be determined by the methods of chemical thermodynamics, which play an essential role in the design of innovative schemes and processes developed for the valorization of industrial waste containing precious metals. With regard to complexity and a great deal of experimentation, a current task will be to apply thermodynamic research methods for describing complex experiments and their prediction in those cases where the experiment is impossible or difficult to carry out. The Moldovan team will use a new thermodynamic approach to complex chemical equilibrium research, taking into account complexity of reactions in multicomponent heterogeneous systems under real conditions. Its essence consists in the thermodynamic analysis of the conditions of realization of different processes based on the global thermodynamic characteristics. In order to optimize the process and regulate the composition of the system it will be necessary in the region of optimal concentrations to have a minimum sensitivity and high buffering action relative to the substances in use. The thermodynamic characteristics of the technological processes and the thermodynamic properties of the substances involved will be investigated. Their reciprocal relationships with different physicochemical properties will form the basis of the systematization of the experimental material, the fundamental search for the optimal conditions of technological processes or the suppression of unwanted processes.
Heavy metals content, even in trace amount in different type of samples (vegetation, biological, geological, foodstuff, etc.) will be determined using high sensitive analytical technique - neutron activation analysis using the methodology, developed and tested in the Joint Institute of Nuclear Research. Neutron activation analysis is an analytical technique for qualitative and quantitative determination of elements based on the measurement of characteristic radiation from radionuclides formed directly or indirectly by neutron irradiation of the material. NAA advantages include high sensitivity, good selectivity, good accuracy, independence of matrix effects, nondestructive nature; possibility of simultaneously determining a large number of elements; independence of the results on the form of chemical compounds, easy procedure for samples preparation. Since NAA requires access to a nuclear reactor, the method is less widely applied than other analytical techniques for elemental analysis. Samples are irradiated at the fast pulsed reactor IBR-2 in the Frank Laboratory of Neutron Physics of the Joint Institute for Nuclear Research, Dubna. Unique three-circuit reactor cooling system allows necessary conditions for samples irradiation without destruction – temperature 60-700С. Determination of metal content in solution ca be done using atomic adsorption spectrometry.
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