Raw Coal Tar
Tar is a liquid black product, more or less viscous and having a variable, very complex composition. It is resulted from the coal coking process, where the volatile parts of the coal are separated during the heating stage then forming gases. Those gases carry a certain quantity of tar, either dragged or in vapor shape, which is then decanted and forms the Coal Tar.
The tar produced in Coke Ovens is a mixture of an extremely complex organic compound, in which there are mainly aromatic hydrocarbons, ranging from substances with light oils and pitches. Tar is sold to downstream companies that perform its fractioning. In addition to that, we produce Coal Tar Sludge, which is a mixture of coal and tar particles that is recycled back into the process.
Main Features
Physic-chemical Characteristics (Reference)
| Moisture content | 2.20 % (max < 5%) |
| Density at 50º C | 1.170 |
| IQ - Insoluble in Quinoline | 2.0% |
| IT - Insoluble in Toluene | 7.05% (max < 15%) |
| PCS - Higher Calorific Power | 8,500 Kcal / kg |
| Fractional Distillation up to 300º C | 25% |
| Fractional Distillation 300C ~ 355º C | 15% |
| Fractional Distillation > 355º C | 60% |
Specific Generation (Reference)
| ITEM | SPECIFIC GENERATION | MONTHLY GENERATION | |
|---|---|---|---|
| Tar | 34,69 | Kg / t Raw Coke | 5.500 |
| Coal Tar sludge | 1,22 | Kg / t Raw Coke | 150 |
Coal Tar Co-products
Two types of products can be obtained from the distillation of tar: pure products, such as naphthalene, and complex mixtures, such as creosotes and pitches; the latter ones comprise the most important fraction.
| PRODUCT | % |
|---|---|
| Disinfectant Oil | 1 |
| Naphthalene | 6 |
| Creosote Oil | 10 |
| Anthracene Oil | 33,3 |
| Pitches | 47 |
| Wash Oil | 2 |
| Light oils | 0,7 |
Applications
Due to the extensive number of coal tar derivatives, it is highly valued in the chemical industry, since its co-products can have many applications in several areas.
| PRODUCT | APPLICATIONS |
|---|---|
| DISINFECTANT OIL | Disinfectants |
| NAPHTHALENE | Phytalic Anhydride / Chemical Industry / Various Pharmaceutical Applications (dyes, herbicides, etc...). |
| CREOSOTE OIL | 1Wood preservation / Chemical Industry |
| ANTHRACENE OIL | Carbon Black (raw material for making rubber) |
| PITCHES | Industries such as: Aluminum / Refractory / Ferro-alloy |
Contact:
Eng. Pedro Augusto de Carvalho FilhoSales Executive
Tel: (+55 27) 3348-1084 
E-mail: pedro.carvalho@arcelormittal.com
ArcelorMittal Tubarão
Av. Brigadeiro Eduardo Gomes, 930
Jardim Limoeiro, Serra,
Espírito Santo
Zip Code 29163-970. PCE 41
Siderúrgica produtora de placas de aço, aços planos, bobinas e laminados a quente.
