Preparative gel permeation chromatographic separation of solvent refined coal. [Tetrahydrofuran and chloroform; evaluation of 3 column packings]

Journal Article · Fri Apr 01 04:00:00 EST 1977 · Anal. Chem.; (United States)

DOI:https://doi.org/10.1021/ac50012a008· OSTI ID:7310372

Coleman, W M; Wooton, D L; Dorn, H C; Taylor, L T

A preparative quantitative separation of THF- and CHCl/sub 3/-soluble solvent refined coal (Pittsburgh No. 8) has been demonstrated employing gel permeation chromatographic techniques utilizing three column packings: a styrene--divinyl benzene packing (Bio-Beads S-X4), a cross-linked poly(N-acryloylmorpholine) polymer (Enzacryl Gel K-1), and a modified alkylated dextran (Sephadex LH-20). Each packing material is evaluated based on the extent and time of separation and the cost of materials. The percent recovery in the Bio-Bead case is greater than 95 percent. Average molecular weights via vapor phase osmometry on the four sized fractions of THF-soluble SRC from Bio-Beads suggests that a separation according to molecular weight has been achieved. The description of a short tapered glass column to economically carry out these preparative separations is described.

• Research Organization: Virginia Polytechnic Inst. and State Univ., Blacksburg
• OSTI ID: 7310372
• Journal Information: Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Journal Issue: 4 Vol. 49:4; ISSN ANCHA
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405 -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105* -- Separation Procedures
CHLORINATED ALIPHATIC HYDROCARBONS
CHLOROFORM
CHROMATOGRAPHY
ECONOMICS
EFFICIENCY
EXTRACTION APPARATUSES
EXTRACTION COLUMNS
FUELS
FURANS
HALOGENATED ALIPHATIC HYDROCARBONS
HETEROCYCLIC COMPOUNDS
MOLECULAR WEIGHT
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
SEPARATION PROCESSES
SOLVENT-REFINED COAL