Identification and cleavage of breakable single bonds by selective oxidation, reduction, and hydrolysis. Quarterly report No. 15, April 1-June 30, 1982
Objective is to study the structure of bituminous coal. The program began with studies of the fraction of Illinois No. 6 coal that is toluene-insoluble, pyridine-soluble (TIPS). This report describes further investigations of TIPS fractions, the preparation of a new lot, their fractionation by gel permeation chromatography, and their oxidations by aqueous NaOCl and Ce(IV). It is shown that benzylamine dissolves only 1.3% of the carbon in pyridine-extracted coal in 5 extractions (4 h), but 7.3% in 16 days. A concentrated benzylamine extract was almost wholly soluble in pyridine. Increases in hydroxyl and amine groups when coal is extracted by N-containing solvents, are compared. Silylation of TIPS fractions soluble and insoluble in alcoholic KOH results in similar hydroxyl contents differing in molecular weight. Black acids were tested for diaryl ketone. A literature review indicates that in connecting links Ar-(CH/sub 2/)/sub n/-Ar in coal liquefaction, n should be 2 or more. Pyridine extractions of nine coals are summarized. 10 figures, 11 tables. (DLC)
- Research Organization:
- SRI International, Menlo Park, CA (USA)
- DOE Contract Number:
- AC22-78ET11423
- OSTI ID:
- 7075839
- Report Number(s):
- DOE/ET/11423-T5; ON: DE82021276
- Country of Publication:
- United States
- Language:
- English
Similar Records
Identification and cleavage of breakable single bonds by selective oxidation, reduction, and hydrolysis. Quarterly report No. 16, July 1-October 31, 1982
Identification and cleavage of breakable single bonds by selective oxidation, reduction, and hydrolysis. Quarterly report No. 7, April 1-June 30, 1980
Related Subjects
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
010600 -- Coal
Lignite
& Peat-- Properties & Composition
ALKALI METAL COMPOUNDS
AMINES
AROMATICS
AZINES
BITUMINOUS COAL
BLACK COAL
CARBONACEOUS MATERIALS
CERIUM COMPOUNDS
CHEMICAL BONDS
CHEMICAL REACTIONS
CHROMATOGRAPHY
COAL
COAL LIQUEFACTION
COAL LIQUIDS
ENERGY SOURCES
EXTRACTION
FLUIDS
FOSSIL FUELS
FUELS
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
HYDROGEN COMPOUNDS
HYPOCHLOROUS ACID
INORGANIC ACIDS
LIQUEFACTION
LIQUIDS
MAGNETIC RESONANCE
MANGANESE COMPOUNDS
MATERIALS
MOLECULAR STRUCTURE
MOLECULAR WEIGHT
NUCLEAR MAGNETIC RESONANCE
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXIDATION
OXYGEN COMPOUNDS
PERMANGANATES
POTASSIUM COMPOUNDS
POTASSIUM PERMANGANATES
PYRIDINES
RARE EARTH COMPOUNDS
RESEARCH PROGRAMS
RESONANCE
SEPARATION PROCESSES
SILICON COMPOUNDS
SOLUBILITY
SOLVENT EXTRACTION
STRUCTURAL CHEMICAL ANALYSIS
THERMOCHEMICAL PROCESSES
TOLUENE
TRANSITION ELEMENT COMPOUNDS