Covestro, one of the world’s largest polymer companies, celebrated 50 years of chlorine production together with its employees, customers, and partners including NRW site manager Dr. Klaus Jaeger, plant manager Dr. Johann Rechner and Board member Dr. Klaus Schäfer.
The annual capacity of the plant at its start in 1967 was 50,000 metric tons. From that time, several expansions were carried out. Electrolysis was increased on a nearly annual basis. Today, the Dormagen plant has an annual production capacity of 480,000 tons, the company’s largest chlorine production facility in the world.
Dr. Klaus Schäfer, the member of the Covestro Board of Management responsible for Production and Technology, said, “A 50th anniversary of a production facility is a special occasion. It is even more special when it involves chlorine production, which is at the heart of our facility. Over the past 50 years, we have substantially reduced the amount of energy required for chlorine production.”
Conversion to membrane technology has reduced energy consumption by around 30 percent, which is one the greatest technical achievement. The membrane process required a better quality of salt, which also enabled new and more environmentally friendly transport options. Salt was received by ship to the Dormagen Rhine port and was loaded on trucks for transport to the plant. In the new slurry process, the salt is suspended in water at the port and then pumped to the plant via pipes. This resulted in saving of about 80 truck trips per day than before.
NRW site manager Dr. Klaus Jaeger is proud of the plant’s reliability and the performance of its employees as well. Two additional loading stations for rail tank cars and another tank for hydrochloric acid having already been approved for further expansion.