G - Physics – 01 – N
Patent
G - Physics
01
N
182/2, 73/93
G01N 30/02 (2006.01) B01D 15/08 (2006.01) C07C 7/12 (2006.01) G01N 33/28 (2006.01)
Patent
CA 1209056
-18- LIQUID CHROMATOGRAPHIC SEPARATION OF HYDROCARBONS Abstract There is disclosed a method for the separation and identification of components contained in hydro- carbon mixtures, such as paraffins, olefins, napthenes and/or aromatics, by liquid chromatography by use of a chromatographic column packed with a microparticulate material having a pore size of less than about 500 .ANG. and possessing aromaticity, preferably polystyrene/ divinyl benzene having a pore size of less than about 100 .ANG., the microparticulate material being slurry packed in a medium comprising a C5 to C8 alkane. The hydrocarbon mixture is passed through the packed column using a C5 to C8 alkane as the mobile phase; and the paraffins, olefins, napthenes, and/or aromatics are separately eluted and identified. Also provided by this invention is an apparatus for the characterization and separation of paraffins, olefins, napthenes, and aromatics contained in hydrocarbon mixtures, the apparatus comprising: a chromatographic column packed with a microparticulate material having a pore size of less than about 500 .ANG. and possessing aromaticity, and slurry packed in a medium comprising a C5 to C8 alkane; injection means for injecting a sample of the hydrocarbon mixture into said column; solvent reservoir means and pump means to provide a C5 to C8 alkane as the mobile phase to said column; and detector means to detect and identify said paraffins, olefins, napthenes, and aromatics as they are eluted from said column.
432436
R. William Wray & Associates
Varian Associates Inc.
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