Extraction chemistry of some bidentate organophosphorus compounds

• Main Authors: Martella, L.L., Navratil, J.D., Santiago, W.F.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Rockwell International. Rocky Flats Plant. 1978
• Subjects: Transplutonium Elements; Elements; 37 Inorganic; Organic; Physical And Analytical Chemistry; Organic Compounds; Nitric Acid; Chelating Agents; Solvent Extraction; Carboxylic Acid Salts; Plutonium; Esters; Actinides; Rare Earths; Inorganic Acids; Metals; Sulfuric Acid; Solvent Properties; Transuranium Elements 400105* > Separation Procedures; Organic Phosphorus Compounds; Uranium; Carbonic Acid Derivatives; Phosphonic Acid Esters; Organic Nitrogen Compounds; Extraction; Hydrogen Compounds; Carbamates; Americium; Separation Processes; Carbonic acid
• Online Access: https://digital.library.unt.edu/ark:/67531/metadc1184415/

The extraction chemistry of methylenediphosphonates, carbamoylphosphonates, and carbamoylmethylenephosphonates has been investigated. The bidentate organophosphorus compounds extract actinides strongly, extract lanthanides, iron, gallium, molybdenum, titanium, vanadium, and zirconium partially, and do not extract most other elements from 5 to 7 M nitric acid. The properties of the extractants and extraction mechanisms are discussed. The effect of complexing agents on the extraction of actinides and lanthanides is also presented.