## 4 Conclusions  
Based on the results presented in this paper, it seems feasible to create agglomerates with sufficient physical properties to withstand handling in a steel plant by the innovative approach of using paper fibres as reinforcement and the stamp press with its high manufacturing pressures. This way, and in contrast to the current state of the art, an agglomerate can be produced that will only include secondary raw materials as well as binders and fibres, which will contribute to a reduction of oxides by the increased carbon content. A cement- or water-glass-based binding system, which would introduce materials without use for the metallurgical melting process, can be avoided while still achieving sufficient compression strength of the agglomerates. Future research for this project will focus on the melting and reduction behaviour of the investigated recipes. Subsequently, pilot-scale production of selected recipes, as well as industrial-scale testing in electric arc furnaces for steelmaking, is planned. To make the conclusions regarding the influence of \begin{table}
\begin{tabular}{c c c c c c c c c} \hline \hline  & \multicolumn{2}{c}{**BRICK 1**} & \multicolumn{2}{c}{**BRICK 2**} & \multicolumn{2}{c}{**BRICK 3**} & \multicolumn{2}{c}{**BRICK 4**} \\ \cline{2-9}  & **C (\%)** & **S (\%)** & **C (\%)** & **S (\%)** & **C (\%)** & **S (\%)** & **C (\%)** & **S (\%)** \\ \hline BRICK X PIECE 1 & 15.5 & 0.176 & 14.5 & 0.148 & 14.9 & 0.15 & 15.3 & 0.17 \\ BRICK X PIECE 2 & 15 & 0.165 & 14.7 & 0.155 & 15.1 & 0.158 & 15.2 & 0.164 \\ BRICK X PIECE 3 & 15.2 & 0.159 & 14.8 & 0.17 & 14.9 & 0.163 & 15.2 & 0.16 \\ BRICK X PIECE 4 & 15 & 0.14 & 14.8 & 0.161 & 15 & 0.15 & 15 & 0.153 \\ BRICK X PIECE 5 & 14.9 & 0.155 & 15 & 0.164 & 14.8 & 0.143 & 15.4 & 0.17 \\ MEAN (\%) & 15.1 & 0.16 & 14.8 & 0.16 & 14.9 & 0.15 & 15.2 & 0.16 \\ SD (\%) & 0.2 & 0.01 & 0.2 & 0.01 & 0.1 & 0.01 & 0.1 & 0.01 \\ RSD (\%) & 1.4 & 7.45 & 1.1 & 4.73 & 0.7 & 4.56 & 0.9 & 3.94 \\ \hline \hline \end{tabular}
\end{table} 
Table 16: LECO analysis. Figure 20: Fracture surface of produced briquettes using starch as binder (a,b). fibre addition and manufacturing pressure on compression strength more robust, additional tests with different recipes and an extended range of manufacturing pressures would be useful. The results achieved so far can already be applied by research institutes and companies trying to develop new ways to agglomerate and recycle especially fine metallurgical residues and waste materials. Conceptualisation, T.E., M.A., D.M. and S.S.; validation, T.E. and M.A. ; investigation, T.W., S.P., M.A. and A.A.; resources, I.U. ; writing--original draft preparation, T.E., T.W., M.A. and S.P. ; writing--review and editing, T.E., M.A., D.M. and S.S.; visualisation, T.E., S.P., M.A., D.M. and S.S.; supervision, T.E, C.M. and T.F. This project received funding from the European Commission from the Research Fund for Coal and Steel under grant agreement no. 754197. This paper reflects only the authors' view and the Commission is not responsible for any use that may be made of the information it contains. The authors declare no conflict of interest. The funders had no role in the design of the study; in the collection, analyses or interpretation of data; in the writing of the manuscript; or in the decision to publish the results. The following abbreviations are used in this manuscript: