Mineral oils: processes and products – Asphalts – tars – pitches and resins; making – treating and... – By distillation
Patent
1992-08-06
1994-07-05
Myers, Helane
Mineral oils: processes and products
Asphalts, tars, pitches and resins; making, treating and...
By distillation
208 22, 208 39, 208 41, C10G 900, C10G 1100
Patent
active
053264576
ABSTRACT:
Carbon electrode impregnating pitch is made from coal tar by centrifugation of the coal tar to remove particulates, followed by milling and distilling the remaining material.
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Aristech Chemical Corporation
Krayer William L.
Myers Helane
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