Chemistry and catalysis in supercritical media Metadata

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Title

  • Main Title Chemistry and catalysis in supercritical media

Creator

  • Author: Tumas, W.
    Creator Type: Personal
  • Author: Morgenstern, D.
    Creator Type: Personal
  • Author: Feng, S.
    Creator Type: Personal

Contributor

  • Sponsor: United States. Department of Energy. Assistant Secretary for Human Resources and Administration.
    Contributor Type: Organization
    Contributor Info: USDOE Assistant Secretary for Human Resources and Administration, Washington, DC (United States)

Publisher

  • Name: Los Alamos National Laboratory
    Place of Publication: New Mexico
    Additional Info: Los Alamos National Lab., NM (United States)

Date

  • Creation: 1997-07-01

Language

  • English

Description

  • Content Description: This is the final report of a three-year, Laboratory-Directed Research and Development (LDRD) project at the Los Alamos National Laboratory (LANL). The aim of this research is to explore the potential of supercritical fluids as reaction media for stoichiometric and catalytic chemical transformations in an effort to develop new, environmentally-friendly methods for chemical synthesis or processing. This approach offers the possibility of opening up substantially different chemical pathways, increasing selectivity while enhancing reaction rates, facilitating downstream separations and mitigating the need for hazardous solvents. The authors describe investigations into a number of catalytic processes for which carbon dioxide represents a viable solvent replacement. In several cases they have observed significant enhancements in selectivity and/or reactivity relative to conventional organic solvents. They have investigated the following catalytic processes: (a) selective oxidation including dihydroxylation and epoxidation, (b) asymmetric hydrogenation and hydrogen transfer reduction, (c) Lewis acid catalyzed acylation and alkylation, and (c) coupling of amines with carbon dioxide to make isocyanates.
  • Physical Description: 15 p.

Subject

  • Keyword: Isocyanates
  • Keyword: Chemical Industry
  • Keyword: Oxidation
  • Keyword: Hydrogenation
  • Keyword: Carbon Dioxide
  • Keyword: Acylation
  • STI Subject Categories: 32 Energy Conservation, Consumption, And Utilization
  • Keyword: Catalysis
  • STI Subject Categories: 40 Chemistry
  • Keyword: Alkylation
  • Keyword: Supercritical Gas Extraction
  • Keyword: Hydrogen Transfer

Source

  • Other Information: PBD: [1997]

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Report

Format

  • Text

Identifier

  • Other: DE97007835
  • Report No.: LA-UR--97-1476
  • Grant Number: W-7405-ENG-36
  • DOI: 10.2172/505272
  • Office of Scientific & Technical Information Report Number: 505272
  • Archival Resource Key: ark:/67531/metadc692902

Note

  • Display Note: OSTI as DE97007835