Solubility and Surface Adsorption Characteristics of Metal Oxides to High Temperature.

Wesolowski, D. J. ; Machesky, M. L. ; Ziemniak, S. E. ; Xiao, C. ; Palmer, D. A. ; Anovitz, L. M. ; Benezeth, P.

Technical Information Center Oak Ridge Tennessee

关键词: Aqueous solutions;    High temperature;    Metals;    Oxides;    Solubility;   

RP-ID  :  DE2004821956

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

The interaction of high temperature aqueous solutions with mineral surfaces plays a key role in many aspects of fossil, geothermal and nuclear energy production. This is an area of study in which the subsurface geochemical processes that determine brine composition, porosity and permeability changes, reservoir integrity, and fluid flow rates overlap with the industrial processes associated with corrosion of metal parts and deposition of solids in pipes and on heat exchanger surfaces. The sorption of ions on mineral surfaces is also of great interest in both the subsurface and 'above ground' regimes of power production, playing a key role in subsurface migration of contaminants (nuclear waste disposal, geothermal brine re-injection, etc.) and in plant operations (corrosion mitigation, migration of radioactive metals from reactor core to heat exchanger, etc.). In this paper, results of the solubility and surface chemistry of metal oxides relevant to both regimes are summarized.