	US 11,667,989 B2
	Metallic ore pellets
Eduardo Da Costa, Angleur (BE); and Marc Pelletier, Saint-Mande (FR)
Assigned to S. A. Lhoist Recherche et Developpement, Ottignies-Louvain-la- (BE)
Appl. No. 16/464,511
Filed by S. A. Lhoist Recherche et Developpement, Ottignies-Louvain-la-Neuve (BE)
PCT Filed Nov. 30, 2017, PCT No. PCT/EP2017/080986 § 371(c)(1), (2) Date May 28, 2019, PCT Pub. No. WO2018/100064, PCT Pub. Date Jun. 7, 2018.
Claims priority of application No. PCT/EP2016/079338 (WO), filed on Nov. 30, 2016.
Prior Publication US 2020/0190623 A1, Jun. 18, 2020
Int. Cl. C22B 1/243 (2006.01); C22B 1/24 (2006.01)

CPC C22B 1/243 (2013.01) [C22B 1/2406 (2013.01)]

8 Claims

1. A process for manufacturing metallic ore fluxed pellets, comprising the steps of:

feeding a fine metallic ore concentrate into a container, wherein said fine metallic ore concentrate presents a Blaine fineness comprised between 1500 cm²/g and 2500 cm²/g;

feeding a binder in said container;

adjusting moisture in said container to form a wet mixture;

balling and sieving said wet mixture into crude metallic ore fluxed pellets;

wherein said binder is a compound which includes magnesium, the compound comprising a semi-hydrated dolime fitting the general formula aCa(OH)₂·bMg(OH)₂·cMgO, a, b and c being weight fractions wherein the weight fraction b of Mg(OH)₂is between 0.5 and 19.5% by weight with respect to the total weight of said semi-hydrated dolime.