Acid-Base Behavior in Hydrothermal Processing of Wastes - Final Report

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A major obstacle to development of hydrothermal oxidation technology has been a lack of scientific knowledge of chemistry in hydrothermal solution above 350 C, particularly acid-base behavior, and transport phenomena, which is needed to understand corrosion, metal-ion complexation, and salt precipitation and recovery. Our objective has been to provide this knowledge with in situ UV-visible spectroscopic measurements and fully molecular computer simulation. Our recent development of relatively stable organic UV-visible pH indicators for supercritical water oxidation offers the opportunity to characterize buffers and to monitor acid-base titrations. These results have important implications for understanding reaction pathways and yields for decomposition ... continued below

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Johnston, K. & Rossky, P. December 1, 2000.

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Description

A major obstacle to development of hydrothermal oxidation technology has been a lack of scientific knowledge of chemistry in hydrothermal solution above 350 C, particularly acid-base behavior, and transport phenomena, which is needed to understand corrosion, metal-ion complexation, and salt precipitation and recovery. Our objective has been to provide this knowledge with in situ UV-visible spectroscopic measurements and fully molecular computer simulation. Our recent development of relatively stable organic UV-visible pH indicators for supercritical water oxidation offers the opportunity to characterize buffers and to monitor acid-base titrations. These results have important implications for understanding reaction pathways and yields for decomposition of wastes in supercritical water.

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INIS; OSTI as DE00775047

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  • Other Information: PBD: 1 Dec 2000

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  • Report No.: DOE/ER/14687
  • Report No.: Project Number 54506
  • Grant Number: FG07-96ER14687
  • DOI: 10.2172/775047 | External Link
  • Office of Scientific & Technical Information Report Number: 775047
  • Archival Resource Key: ark:/67531/metadc725367

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • December 1, 2000

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  • Sept. 29, 2015, 5:31 a.m.

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  • April 20, 2016, 6:37 p.m.

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Johnston, K. & Rossky, P. Acid-Base Behavior in Hydrothermal Processing of Wastes - Final Report, report, December 1, 2000; United States. (digital.library.unt.edu/ark:/67531/metadc725367/: accessed December 12, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.