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Coal tar distillation

Pitch

Features

Coal tar is a by-product generated while processing coking coal into low ash metallurgical coke in a recovery-type coke oven plant. Coal tar accounts for around 3.5-4% of coke produced. Coal tar pitch is a complex chemical with 22 chemical and physical properties obtained through coal tar distillation, which involves the conversion of coal tar into a variety of intermediate chemical products. The residue is coal tar pitch, which is further processed into quality coal tar pitch of desired chemical and physical properties. At, Himadri, coal tar pitch is derived from the processing of high temperature coal tar using state-of-art technologies.

Applications
Grade Applications
Aluminium grade pitch In pre-baked anode and Soderberg in aluminium manufacture
Graphite Grade binder pitch In graphite electrode manufacture
Graphite Grade zero QI coal tar impregnating pitch In graphite electrode, nipple impregnation and UHP grade electrode manufacture
Mesophase pitch In needle coke, carbon/carbon composites, advanced carbon material and carbon fibres
Special pitches In refactories carbon paste, paints/ultramarine blue and water proofing, among others
Qualities and specifications

Binder Pitch of aluminium & graphite industry Download PDF

Impregnation pitch for graphite industry Download PDF

Mesophase pitch (under development)

Special pitch Download PDF

Packaging

Pitch is marketed in solid and liquid form. Solid pitch is available in bulk bags and jumbo bags. Liquid pitch is supplied with the help of the Company’s dedicated fleet of specialised tanker. Himadri also has bulk liquid pitch terminal to load up to 6,000 MT at Haldia port and is currently constructing a new liquid pitch terminal at Lonkou port in China, capable of loading 12,000 MT of liquid coal tar and pitch.

 

Contact: tarproducts@himadri.com

Naphthalene

Features

Naphthalene is used in the manufacture of SNF, beta naphthol, phthalic anhydride, tanning agents, moth balls and domestic disinfectants. During the distillation process, approximately 8-9% naphthalene is recovered for use dye and organic compound intermediates in fine chemicals and pharmaceuticals. Globally, coal tar is the major source of naphthalene.

Applications
  • Dyes and dyestuff intermediates
  • Tanning agents
  • Super plasticiser manufacture, as a raw material
  • Pharmaceuticals
  • Disinfectants (especially in households)
Qualities and specifications

Technical naphthalene Download PDF

Refined naphthaleneDownload PDF

Packaging

Available in solid flake form and packed in 50 kg and 500 kg HDPE bags.

Oils

Features

Different fractions of oils are produced during the coal tar distillation process ranging between boiling point 180șC and 350șC

Applications
Grade Applications
Light creosote oils In paints and asphalt liquefying, manufacture of phenolics disinfectants
Wash oil/Wood preservative oil In benzene extraction from the coke oven gas and wood preservative as BS 4164, AWWA C203 and IS 15337 (2003) standards
Anthracene oil In carbon black manufacture as a feedstock and in coal tar enamel manufacture
Qualities and specifications

Light creosote oils Download PDF

Wash oil/Wood preservative oil Download PDF

Anthracene oil Download PDF

Packaging

Available in liquid tanker and 200 kgs drums.

 

Contact: tarproducts@himadri.com