Coal Tar Pitch

Coal Tar Pitch is used by a variety of industries and is referred to by different names viz. Soft Pitch, Hard Medium Pitch, Hard Pitch, Extra Hard Pitch, Blended Pitch and Pulverised Pitch (Pitch Powder).

A few typical industry applications are tabulated below:

Parameters Specifications
Industry For Alumnium Industry For Graphite Industry For Refractories
  Soderberg Process Pre-bake Smelter Process    
Softening Point (R&B) 90 to 105 101 to 113 95 to 110 80 to 90
Coking Value (%) (conerdom) 53 min. 54 min. 53 min. 45 min.
Toluene Insoluble (%) 30 min. 32 min. 22 min. 20 min.
Quinoline Insoluble (%) 8 to 12 7 min. 10 to 16 8 max.
Ash (%) 0.30 max. 0.25 max. 0.30 max. 0.30 max
Moisture (%) 0.20 max 0.50 max. 0.50 max. nil

The specifications are indicative and could vary as per customer requirements.