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  • Conference paper
    Janakat ME, Kitchens CL, Hallett JP, Lu X, Maxey NB, Donaldson M, Liotta CL, Eckert CAet al., 2005,

    Diffusion and viscosity in gas-expanded liquids

    Gas-expanded liquids are a new class of tunable solvents in which novel applications in separations and catalysis depend on the interactions of solutes with the cybotactic region. Diffusion coefficients of benzene, pyridine, pyrimidine, pyrazine, and 1,3,5-triazine by the Taylor-Aris dispersion technique in CO<inf>2</inf>-methanol mixtures are presented. Viscosities of the CO<inf>2</inf>-methanol mixtures are determined by measuring the pressure drop across a tube. These data will be compared with measurements of viscosity in the cybotactic region obtained by the rotation of a chromaphore. The comparison of these with the Stokes-Einstein relationship will help elucidate differences between bulk and local properties. This is an abstract of a paper presented at the AIChE Annual Meeting and Fall Showcase (Cincinnati, OH 10/30/2005-11/4/2005).

  • Journal article
    Eckert CA, Liotta CL, Bush D, Brown JS, Hallett JPet al., 2004,

    Sustainable reactions in tunable solvents

    , JOURNAL OF PHYSICAL CHEMISTRY B, Vol: 108, Pages: 18108-18118, ISSN: 1520-6106
  • Journal article
    Lazzaroni MJ, Bush D, Jones R, Hallett JP, Liotta CL, Eckert CAet al., 2004,

    High-pressure phase equilibria of some carbon dioxide-organic-water systems

    , FLUID PHASE EQUILIBRIA, Vol: 224, Pages: 143-154, ISSN: 0378-3812
  • Journal article
    West KN, Hallett JP, Jones RS, Bush D, Liotta CL, Eckert CAet al., 2004,

    C02-induced miscibility of fluorous and organic solvents for recycling homogeneous catalysts

    , INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, Vol: 43, Pages: 4827-4832, ISSN: 0888-5885
  • Conference paper
    Jones RS, Lu J, Hallett JP, Pollet P, Kass DS, Lazzaroni MJ, Liotta CL, Eckert CAet al., 2004,

    Switchable solvents for recovering homogeneous catalysts

    , ISSN: 0065-7727

    To enjoy the benefits of homogeneous reactions with heterogeneous separations, novel solvent systems called Organic-Aqueous Tunable Systems are designed. Adding CO <inf>2</inf> to a miscible water-organic system, e.g., THF and water, will cause a phase split since the addition of CO <inf>2</inf> to THF increased the hydrophobicity of the THF. Hydrophobic reactants and a hydrophilic catalyst can be dissolved in one aqueous-organic solution. Once the reaction has been run homogeneously, CO <inf>2</inf> pressure can be used to split the water from the organic phase allowing for an easy separation of product and catalyst. The water and catalyst can now be easily recycled. This technique can be used with existing aqueous biphasic reactions to eliminate any mass transfer limitations; similar systems are also applicable for biocatalysis to bring substrates into intimate contact with the enzyme catalyst. This is an abstract of a paper presented at the 227th ACS National Meeting (Anaheim, CA 3/28/2004-4/1/2004).

  • Journal article
    Lu J, Lazzaroni J, Hallett JP, Bommarius AS, Liotta CL, Eckert CAet al., 2004,

    Tunable solvents for homogeneous catalyst recycle

    , INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, Vol: 43, Pages: 1586-1590, ISSN: 0888-5885
  • Conference paper
    Thomas CA, Pollet P, Hallett JP, Jones RS, Ablan CD, Jessop PG, Eckert CA, Liotta CLet al., 2004,

    Recycle of homogeneous catalysts by tunable solvents.

    , 227th National Meeting of the American-Chemical Society, Publisher: AMER CHEMICAL SOC, Pages: U1239-U1239, ISSN: 0065-7727
  • Conference paper
    Jones RS, Lu J, Hallett JP, Pollet P, Kass DS, Lazzaroni MJ, Liotta CL, Eckert CAet al., 2004,

    Switchable solvents for recovering homogeneous catalysts.

    , 227th National Meeting of the American-Chemical Society, Publisher: AMER CHEMICAL SOC, Pages: U1242-U1242, ISSN: 0065-7727
  • Journal article
    Schneider PM, Bender K, Mayr WR, Parson W, Hoste B, Decorte R, Cordonnier J, Vanek D, Morling N, Karjalainen M, Carlotti CMP, Sabatier M, Hohoff C, Schmitter H, Pflug W, Wenzel R, Patzelt D, Lessig R, Dobrowolski P, O'Donnell G, Garafano L, Dobosz M, de Knijff P, Mevag B, Pawlowski R, Gusmao L, Vide MC, Alonso AA, Fernández OG, Nicolás PS, Kihlgreen A, Bär W, Meier V, Teyssier A, Coquoz R, Brandt C, Germann U, Gill P, Hallett J, Greenhalgh Met al., 2004,

    STR analysis of artificially degraded DNA - results of a collaborative European exercise

    , FORENSIC SCIENCE INTERNATIONAL, Vol: 139, Pages: 123-134, ISSN: 0379-0738
  • Journal article
    Ablan CD, Hallett JP, West KN, Jones RS, Eckert CA, Liotta CL, Jessop PGet al., 2003,

    Use and recovery of a homogeneous catalyst with carbon dioxide as a solubility switch

    , CHEMICAL COMMUNICATIONS, Pages: 2972-2973, ISSN: 1359-7345

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