BOPI 11 BR/2024 REPERTOIRE NUMERIQUE 30 (73) LUOSSAVAARA-KIIRUNAVAARA AB, P.O. Box 952, 971 28 LULEÅ (SE) (74) Cabinet Spoor & Fisher Inc. Ngwafor & Partners, The House of Gideon, Golf/Bastos Quater, Opposite The American Embassy, Entrance-Saint John Paul II Boulevard, P.O. Box 8211, YAOUNDE (CM). (57) Reduction reactor and process of effecting reduction of iron ore material to reduced iron material. The process comprising to feed (101) iron ore material into a reduction reactor (1) at a top portion (la) thereof, creating a gravitational tlow of the material in the reduction reactor from the top portion (1 a), axial ly downwards towards a bottom portion (lb) of the reduction reactor (1); to feed (102) a heated reduction gas into the reduction rcactor (1) at the top portion (la) of the reduction reactor, such that the reduction gas creates a co-current flow with the gravitational flow of the material in the reduction reactor (1), and by means of the reduction gas reducing (103) the iron ore material to reduced iron material in the reduction reactor. Fig. 1 (11) 21716 Consulter le mémoire (51) C04B 28/04 (2023.01) (21) 1202400224 - PCT/EP2023/050426 (22) 10/01/2023 (30) EP n° 22382031.7 du 19/01/2022 (54) Cementitious compositions having biomass ashes, especially bagasse ashes, and uses thereof. (72) PASCUAL, Thomas (ES) (73) Sika Technology AG, Zugerstrasse 50, 6340 BAAR (CH) (74) S.C.P AKKUM, AKKUM & Associates, No. 1777, rue 6.261, Yaoundé 2, Auditorium Jean Paul II boulevard, Face Brigade de Gendarmerie, Mbankolo, B.P. 4966, YAOUNDE (CM). (57) The present invention relates to cementitious compositions comprising or consisting of a) a hydraulic binder itself comprising (in each case relative to the total dry weight of hydraulic binder) ai) 50 - 92 w%, preferably 70 - 77.55 w% of Ordinary Portland 5 Cement, aii) 5 -5 0 w%, preferably 21 - 30 w% of biomass ash, preferably bagasse ash, b) 0.01 - 0.5 w%, preferably 0.1 - 0.45 w% (relative to the total dry weight of the cementitious composition) of cellulose ether, c) optionally 0.05 - 2.5 w%, preferably 0.1 -1 w% (relative to the total dry weight of the cementitious composition) of redispersible polymer powder, and d) optionally at least one activator 10 selected from alkali metal or alkaline earth metal salts of hydroxide, formate, chloride, sulphate, and/or nitrate. The present invention also relates to uses of such cementitious compositions especially as tile adhesive. ________________________________________ (11) 21717 Consulter le mémoire (51) A01N 25/10 (2023.01) ; A01N 25/18 (2023.01)
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