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Vila-seca I: Spain's first chlorine production factory

Chlorine, which is produced together with caustic soda, is the central product of the Vila-seca I plant. The total production capacity of this plant is almost 1 million tonnes per year. Part of the chlorine produced is used to manufacture inorganic derivatives (sodium hypochlorite and hydrochloric acid) at the same plant; another part is supplied to the Vila-seca II plant for the production of PVC; and a third part is sold by pipeline to an external customer.

Between 2015 and 2020, this factory undertook a major modernisation and expansion of its facilities, with an investment of over 60 million euros. As a result of these actions, it now has the largest electrolysis plant in Spain. Since the end of 2017, all production has been obtained using membrane cell technology, the most advanced and sustainable technology.

The workforce at Vila-seca I is made up of almost 150 people. This factory, together with those of Tarragona and Vila-seca II, make up the Tarragona industrial complex, which in turn is integrated into the Ercros chlorine derivatives division.