The 97 European Study Group with Industry (97 ESGI) was held at Santiago de Compostela from 11th to 14th November, 2013. One of the problem was treated in this ESGI is the problema I: "Electric scale-up for a slag heating furnace" that is described in the report attached.

The success of the ESGI are the unique format which has been copied around the world, in which mathematics community work on reduced groups to study problems, presented by industry. These problems are presented from any economic sector thanks to the Mathematics' transversality.

The objective is to present ESGI capabilities of Mathematics and its applicability in a large part of the challenges and needs of the industrial, bringing small, medium and large companies a technology with great potential, with highly qualified researchers and that does not require large investments to use.