Pitch precursor production by distillation

Details Pitch precursor production by distillation Pitch precursor production by distillation

1992-08-25

1995-07-04

Myers, Helane E.

Mineral oils: processes and products

Oxidation of mineral oils

To form asphalts, tars or pitches

208 22, 208 39, C10G 2700

Patent

active

054297397

ABSTRACT:
An improved wiped film evaporator (WFE) process for removing low molecular weight species from a hydrocarbyl mixture is disclosed, wherein partial oxidation of a hydrocarbyl mixture precedes the WFE step. Faster rates of distillation are achieved without significant deterioration of hydrocarbyl product properties. Such products can include carbon fiber precursor materials. Similar faster rates are provided by adding higher softening point hydrocarbyl materials with or without prior partial oxidation.

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