Aromatic pitch from asphaltene-free steam cracker tar fractions

Details Aromatic pitch from asphaltene-free steam cracker tar fractions Aromatic pitch from asphaltene-free steam cracker tar fractions

1982-02-08

1984-02-14

Gantz, Delbert E.

Mineral oils: processes and products

Asphalts, tars, pitches and resins; making, treating and...

Chemical modification of asphalt, tar, pitch or resin

208 22, 208 40, 4234474, 4234476, 423448, 423449, C10C 100, C10C 300, C10C 120

Patent

active

044315120

ABSTRACT:
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 deasphaltenated middle fraction of a steam cracker tar feedstock. The middle fraction is rich in 2, 3, 4, and 5 polycondensed aromatic rings. The pitch is characterized as being relatively free of impurities and ash.

REFERENCES:
patent: 3721658 (1973-03-01), Dickakian
patent: 4086156 (1978-04-01), Dickakian
patent: 4271006 (1981-06-01), Dickakian

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