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Aromatic pitch production from coal derived distillate

Patent ·
OSTI ID:6785178
A process and a product of the process for preparing a pitch suitable for carbon artifact manufacture features a pitch having a weight content of between 80 and 100 percent toluene insolubles. The pitch is derived from a substantially deasphaltenated middle fraction of a feedstock, such as a coal distillate. The middle fraction is rich in 3, 4, 5 and 6 polycondensed aromatic rings. The pitch is characterized as being relatively free of impurities and ash.
Assignee:
Exxon Research and Engineering Co.
Patent Number(s):
US 4448670
OSTI ID:
6785178
Country of Publication:
United States
Language:
English

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Related Subjects

01 COAL, LIGNITE, AND PEAT
010402 -- Coal
Lignite
& Peat-- Purification & Upgrading
02 PETROLEUM
020500* -- Petroleum-- Products & By-Products
ALKYLATED AROMATICS
AROMATICS
CARBON FIBERS
CHEMICAL COMPOSITION
COAL LIQUIDS
COAL TAR
DEASPHALTING
DISTILLATES
ENERGY SOURCES
EXTRACTION
FIBERS
FLUIDS
FOSSIL FUELS
FUELS
HYDROCARBONS
LIQUIDS
MOLECULAR WEIGHT
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM
PETROLEUM DISTILLATES
PETROLEUM FRACTIONS
PITCHES
PROCESSING
PRODUCTION
PURIFICATION
SEPARATION PROCESSES
SOLUBILITY
TAR
TOLUENE