Noah's pitch process

Details Noah's pitch process Noah's pitch process

2008-01-15

2008-01-15

Caldaeola, Glenn (Department: 1764)

Mineral oils: processes and products

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

By distillation

C208S022000, C208S040000, C208S044000, C208S049000, C208S050000, C208S067000, C208S072000, C208S085000, C208S131000

Reexamination Certificate

active

07318891

ABSTRACT:
A process for producing pitch from pitch precursors, such as wood tar, coal tar or petroleum fractions is disclosed. Direct contact heat exchange of the pitch precursor with molten metal, preferably maintained as a metal continuous bath, heats the pitch precursor to a temperature sufficient to induce thermal polymerization reactions and produce a pitch product.

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