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Information × Registration Number 0312U003493, 0105U005669 , R & D reports Title Research of the adsorption, flotation-adsorption and flotation-extraction concentratings of extractants solutions. popup.stage_title Дослідження адсорбційного, флотоадсорбційного та флотоекстракційного концентрування розчинів екстрагентів Head Sazonova Valentina Fedorovna, Registration Date 27-09-2012 Organization Odesa I.I.Mechnikov national university.Pervomaisk institute. popup.description2 Laws of isolation true soluble and fine-emulsified extractants by adsorption and flotation methods and lanthanum by flotation-extraction method are studied. By the analysis of adsorption isotherms and its thermodynamic characteristics (?G0, ?H0, ?S0) the mechanism of tributyl phosphate (TBP) adsorption on silica gel and kaolin from water and 1- 6М sulphuric acid solutions is positioned. The obtained data allow to predict rational conditions of TBP desorption and its subsequent production recycle. It is positioned, that additional, after flotation, adsorption of fatty acids on superfine paraffin allows to reduce their residual concentration in tens times - to values (0,142-0,273 mg/l), close to maximum concentration limit (0,05 mg/l). The received depth of purification allows to direct treated water on biofilters. The adsorption role of alkylcarboxylates lanthanum (ACL) on a surface of fatty acids (extractants) superfine drops is positioned at flotation-extraction isolation of lanthanum which consists that concentration ACL on a surface of drops in tens times exceeds their concentration in an organic phase. By means of the theory of stability of hydrophobic colloids (theory DLFO) for a heterocoagulation case the influence explanation рН medium, concentration and lengths of a hydrocarbonic radical of chlorides of primary aliphatic amines on efficiency of flotation isolation TBP is yielded. The results received in work can be considered as a scientific substantiation of creation of technological processes of isolation extractants and rare earths from sewage for the purpose of their purification and salvaging of valuable components. Product Description popup.authors Кожемяк Марина Анатоліївна Менчук Василь Васильович Перлова Ольга Вікторівна Пузирьова Ірина Василіївна Пуріч Олександр Миколайович Сагайдак Євгенія Володимірівна Синькова Людмила Олександрівна Солдаткіна Людмила Михайлівна Стрельцова Олена Олексіївна Тимчук Алла Федорівна Ширикалова Анжела Олексіївна popup.nrat_date 2020-04-02 Close