For decades already, EBNER-plants are operated in the factory of a viscose fiber producer in Germany for the purpose of spin bath treatment. In the view of this history and the satisfaction of the customer with the available plants, EBNER has in 2012 been awarded the contract for planning, supplying and erecting a plant for spin bath regeneration and production of sodium sulfate from spin bath that has been polluted due to the fiber production process.
In viscose fiber factories, where a chemical reaction takes place during the spinning process in which sodium sulfate and water develop from soda lye and sulfuric acid, the so-called spin bath is exhausted and diluted. In former times this spin bath was used once and then drained as waste water. This caused enormous environmental problems and high operating costs, and made it absolutely necessary to regenerate the spin bath and lead it back into the process, respectively recover a saleable product from the sodium sulfate contained in the spin bath.