SYSTEMATIC STUDY OF METAL ION SORPTION ON SELECTED GEOLOGIC MEDIA Covers Enhanced Oil Recovery Research on these studies: Ion Exchange Characteristics of Enhanced Oil Recovery Systems Selection of Multiple Tracers for Enhanced Oil Recovery Systems Sesquiannual Report—1978 For the period: April 1977 through September 1978

摘要

This report summarizes results of the first year and a half of a research program on equilibria of inorganic ions between selected minerals and aqueous solutions covering a wide range of composition. The work is motivated by needs of information for enhanced oil recovery and isolation of nuclear waste, as well as by interest in the fundamental chemistry. Emphasis during the period has been on development of techniques;adsorption of alkali metal ions, alkaline earth ions, and rare earth ions on clays, particularly montmorillonite, and determination of the extent to which behavior can be correlated by ideal ion-exchange equations;canvass of effects of purification of minerals and of differences in properties between natural samples from different sources;evalua¬tion of divalent transition element ions as tracers for underground water flow; and adsorption measurements of certain actinides of particular importance in nuclear wastes.