×

Liquids

  • US 8,992,798 B2
  • Filed: 06/28/2011
  • Issued: 03/31/2015
  • Est. Priority Date: 04/07/2004
  • Status: Active Grant
First Claim
Patent Images

1. A process for dissolving an organic, inorganic, or biological material, the process comprising contacting the organic, inorganic, or biological material with an ionic liquid, the ionic liquid comprising an anion and a cation characterised in that the cation is a tertiary nitrogen-containing cation of the formula (I)
N+HRR′

  • R″





    (I)wherein;

    R is a hydrocarbyl group optionally interrupted by one or more ether or thioether linkages, and substituted with one or more substituents selected from nitrogen-containing functional groups, alkenyl, alkoxy, carbonyl and carboxyl groups;

    or from thiol, alkythio, sulphonyl, thiocyanate, isothiocyanate, azido, hydrazino, halogen, boronate and silyl groups;

    R′ and

    R″

    , which may be the same or different, each represent H or a hydrocarbyl group optionally interrupted by one or more ether or thioether linkages, and optionally substituted with one or more substituents selected from nitrogen-containing functional groups, alkyl, alkenyl, alkoxy, hydroxy, carbonyl and carboxyl groups;

    or from thiol, alkythio, sulphonyl, thiocyanate, isothiocyanate, azido, hydrazino, halogen, boronate and silyl groups; and

    any two or three of R, R′ and

    R″

    may be joined together with the N to form a cyclic group.

View all claims
  • 4 Assignments
Timeline View
Assignment View
    ×
    ×