THE SORPTION OF NON-FERROUS METAL-IONS BY CHELATING RESINS
Journal Title: Nature & Science - Year 2024, Vol 6, Issue 3
Abstract
Abstract Conditions of sorption equilibrium of copper, zinc, cadmium and lead-ions by chelatforming resins Amberlite IRC-748 and Duolite C 467 depending on the degree of neutralization of their ionogenic groups, the acidity of the medium and concentration of solutions were studied. Sorption isotherms were established, Langmuir and Freundlich models were proposed. In all cases, the selectivity is governed by the enthalpy factor with heat release and entropy reduction. . Changing the experimental conditions (without interruption and with interruption) significantly affects the rate of ion sorption by the studied ion exchangers. This allows us to conclude that internal diffusion plays a significant role in the processes under study. Thermodynamic of these processes is considered at ideal ionite phase - the activity coefficients of absorbed ions in a solid phase haven't been taken into account. The calculated values of the diffusion coefficient, activation energy, activation entropy, enthalpy, free energy and entropy multiplier of all studied processes are given.
Authors and Affiliations
Mahnur Jafarli, Huseyn Imanov
Keywords
Related Articles
- EP ID EP748941
- DOI 10.36719/2707-1146/42/21-27
- Views 31
- Downloads 0
QOBUSTAN RAYONUNUN DAĞ BOZ-QƏHVƏYİ (ŞABALIDI) TORPAQLARININ AQROFİZİKİ VƏ AQROKİMYƏVİ XASSƏLƏRİ
Xülasə Məqalədə Qobustan rayonunun Ərəbşahverdi kəndi ərazisində dağ boz-qəhvəyi (şabalıdı) torpaqların yaxşılaşdırılmasında çoxillik paxlalı otların rolu əvəzsizdir. Eroziya prosesi bu torpaqların morfoloji əlamətlər...
THE NATURE OF THE CONCEPT OF PRIMARY MEDICAL AID AND ITS PSYCHOLOGICAL ASPECTS
Abstract Healthcare reform is perhaps one of the most discussed topics in social policy today. In the 1990s, the health care reforms carried out in many countries of the world mainly separated the provision and financ...
INTRA-DISCIPLINARY AND INTER-DISCIPLINARY INTEGRATION IN THE TEACHING OF THE LANGUAGE OF CHEMISTRY
Abstract In this article, the intra- and interdisciplinary integration of chemistry language teaching is discussed in order to achieve quality education in the teaching of chemistry. It was noted that quality educatio...
Metal-Based Matrix Materials
Abstract One of the components of the fuel composition of dispersion nuclear fuel is a non-fissile material (matrix), which ensures its high radiation resistance. Despite the fact that dispersion nuclear fuel is used...
AŞINMA PROSESLƏRİ. AŞINMA PROSESLƏRİNDƏ ARDICILLIQ
Xülasə Məqalədə aşınma prosesləri- fiziki aşınma ( temperatur aşınması, şaxta aşınması, insonlyasiya aşınması, mexaniki aşınma ), kimyəvi aşınma ( hidratlaşma, hidrat suyu elyüvi çöküntüləri ), bioloji və ya üzvi aşın...