Processing coal tar yields roughly 10 percent naphthalene and 35–40 percent industrial oils. These products, in a wide range of quality and processing levels, are needed for a wide variety of industrial applications
After industrial processing, products made from naphthalene and industrial oils are indispensable constituents of many articles used in daily life. They are used, for example, in the leather industry and the construction sector, and are processed into items such as car tires and pharmaceuticals.
Naphthalene products, in particular, are used in chemical and construction industries, forming the basis for products such as superplasticizers, which improve the flow properties of concrete with lower water contents. Industrial oils, chiefly carbon black oil, are used in the chemical and carbon black industries.
- Carbon Black Oils
- Impregnation Oils
- Other Oils
The essential feedstock for many chemical processes, and therefore an indispensable part of many industries, naphthalene is one of most versatile raw materials in the world. Alongside ortho-xylene, naphthalene is an essential ingredient for the synthesis of phthalic anhydride (PA), which plays an important role in the production of plastics. PA is also used in the pharmaceutical, dyestuff and agro-industries. In addition, naphthalene is used in tanning agents in the leather industry, as well as in construction, where it is needed as an additive for superplasticizers that enhance the flow properties of concrete.
Rain Carbon Inc.’s RÜTGERS facilities produce up to 120,000 metric tons of naphthalene per year at Cherepovets, Hamilton, Zelzate, including the world's largest naphthalene plant at our 70,000 metric ton Castrop-Rauxel site in Germany.
Tar oils are used in the production of carbon black feedstock. Rain Carbon Inc.’s (RCI) RÜTGERS plants produce specially designed, high-tech carbon black oils, feedstocks which are processed by our customers into industrial carbon black for a wide variety of uses, including pigments for plastics, rubber and printer toners. The most important application of carbon black is in the tire industry, where it exerts a major influence on tire properties; for instance, on rolling resistance and wet performance. Carbon black increases tire life by improving wear resistance and UV protection.
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Creosote oils or impregnation oils are used to preserve wood products, such as railway tie sleepers, and utility and telephone poles. Impregnation oils were the core products around which the RÜTGERS Group was originally founded. Today, Rain Carbon Inc. (RCI) still produces creosote oil at several of its RÜTGERS plants, mainly for use in the North American and European impregnation markets.
Rain Carbon Inc. (RCI) offers a wide range of oils produced at its RÜTGERS facilities, including heating oils for industry, fluxing oils for road building, oil and gas exploration, bunker oils and wash oils.