Some results of the project have been presented in the International Conference Wastes 2017, held in Porto, 25th and 26th September. This gave a publication in the book of selected proceedings F.A. Castro; J. Santos; P. Lacerda; R. Pacheco; T. Teixeira; A. Silva; E. Soares; J. Machado e M. Abreu – Employment of industrial wastes […]
Dessulphurization/ dephosphorization tests complete
The dessulphurizations/ dephosphorization tests have been done, by adding different mixtures of materials / wastes, rich in calcium compounds or calcium containing alloys. The typology of the desulphurization and dephosphorization process corresponding to the objective of this project is the reaction of sulfur (S) and phosphorus (P) elements with components of the following type: reactive […]
Decarburization of stainless steel tests running
During the project, and starting in December 2016, several tests were performed with injection of an argon-oxygen mixture with 8% by volume of this last gas. The intended reaction is: C + ½ O2 —> CO Whose chemical equilibrium constant is expressed by K = P CO / (a C x P O2 1 / […]
First injection tests being done
The first injection tests with the injection prototype have been done. They allowed to verify operating systems and suitability to run experimental test, both for the injection of gases as for solid powders. Following photos show some of the operations.
Injection system developed
The purpose of the system is to inject gases – either alone or in conjunction with reactive powders – into a liquid steel furnace to promote the modification of inclusions or carbon oxidation of the steel. The system must be capable of reliably and repeatably inflating to both the system itself and adjacent employees. It […]