When processing hard coal tar approximately 10 % naphthalene and 35–40 % industrial oils result, which are needed for many different industrial applications in just as many different quality and processing stages. Naphthalene products are used especially in the chemical and construction industries. Above all they form the basis for superplasticisers, which improve the flow properties of concrete at lower water content. Industrial oils, amongst them carbon black oil, are needed in the chemical industry and the carbon black industry.

After further industrial processing of the naphthalene products and industrial oils to make indispensable constituents needed for use in daily life. They are either used in the leather industry and in the building industry or made into car tyres or pharmaceuticals.

Environmentally conscious production

For the RÜTGERS Group, it is matter of concern in all sectors of the company to be effectively involved in environmental conservation. We also use the environmentally friendly crystallisation and distillation in closed systems method during the production of naphthalene.