منابع مشابه
Molecular design of the phenol type extractants
A method of optimisation of new extractants structure using the desirable function has been developed. Earlier the desirable function has been proposed by Harrington (Ind Qual Control 21: 494-498, 1965) for the optimisation of processes with several response functions. The developed method of optimisation of new extractants structure has been used for construction of phenolic type extractants (...
متن کاملPhysicochemical study of extractants for extraction of rare earth element
Background: In nuclear technology, the solvent extraction is an important step for recovery of rare earth materials, purification, radionuclide production, and preparation of nuclear reactor materials. Tributyl phosphate (TBP) and toluene are taken as extractant and diluent, respectively, for study of extraction efficiency for rare earth element like CeO2. Methods: In the present paper, idea of...
متن کاملLanthanide sorbent based on magnetite nanoparticles functionalized with organophosphorus extractants
In this work, an adsorbent was prepared based on the attachment of organophosphorus acid extractants, namely, D2EHPA, CYANEX 272, and CYANEX 301, to the surface of superparamagnetic magnetite (Fe3O4) nanoparticles. The synthesized nanoparticles were coated with oleic acid, first by a chemisorption mechanism and later by the respective extractant via physical adsorption. The obtained core-shell ...
متن کاملRemediation of Uranium-Contaminated Concrete Using Various Extractants
A great amount of radioactive concrete waste was produced from the decontamination and decommissioning of a research reactor and uranium conversion plant at KAERI. To reduce the volume of concrete waste, a separation technology of porous fine cement paste from the gravel and aggregate in concrete through a thermal and mechanical treatment was developed [1]. However, since some gravel and aggreg...
متن کاملTreatment of phosphogypsum waste using suitable organic extractants
Phosphogypsum (PG) is a residue of the phosphate fertilizer industry that has relatively high concentrations of harmful radioactive materials. The reduction in concentration of the radionuclides from PG was investigated. The removal process is based on leaching of radionuclides using suitable organic extractants. The studied radionuclides were 226Ra, 210Pb, 238U and 40K. The factors affect the ...
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ژورنال
عنوان ژورنال: RESOURCES PROCESSING
سال: 1995
ISSN: 1883-9150,0912-4764
DOI: 10.4144/rpsj1986.42.96