FI 20225556 A1

Method of upgrading industrial furnace by-products (into cement clinkers)

(22) 20.06.2022

(43) 21.12.2023

(57) Provided herein is a method of treating and upgrading industrial furnace byproducts, such as steelmaking slag and incinerator bottom ash (IBA) into valuable products, the method comprising the steps (a) providing the industrial furnace by-product, (b) subjecting the industrial furnace by-product to separation crushing to obtain crushed industrial furnace byproducts, (c) subjecting the crushed industrial furnace by-products to one or more magnetic separation step(s) to separate magnetic and non-magnetic particles, and (d) optionally subjecting said non-magnetic particles to fine grinding to obtain fine grinded particles. The fine grinded particles can then be used to produce cement clinkers in kiln.

(71) Magsort Oy (FI)

x

Related articles:

Issue 02/2024 WO 2023/242570 A1

Cementitious binder composition, a method for preparing the same and its uses

(22) 14.06.2023 (43) 21.12.2023 (57) A dry cementitious composition is provided, the composition comprising: a binder comprising ground granulated blast-furnace slag (GGBS), fly ash (FA) or a mixture...

more
Issue 3/2020 WO 2019/231229 A1

Method for preparing chemical gypsum having SO3 content of 38 % or greater (weight basis) by preparing alkali neutralizer using industrial byproducts containing steel slag or calcium oxide as major raw materials and neutralizing waste acid by dry method

(22) 29.05.2019 (43) 05.12.2019 (57) The present invention relates to a method for preparing chemical gypsum having a SO3 content of 38?% or greater by preparing an alkali neutralizer using, as major...

more
Issue 2/2022 NATIONAL COUNCIL FOR CEMENT AND BUILDING MATERIALS (NCCBM)

Phase quantification of Indian industrial clinkers containing minor oxides

1 Introduction Increasing concern regarding Green House Gas (GHG) emissions combined with economical benefits lead the cement manufacturing sector, one of the energy intense sectors, to use various...

more
Issue 02/2024 US 2023/0406773 A1

Low density lightweight particles for use in gypsum and other cementitious mixtures

(22) 15.06.2023 (43) 21.12.2023 (57) A composition is provided including a low density light-weight gypsum or cementitious mix including low density lightweight mineral or polymer based particles with...

more
Issue 7/2023 WO 2023/100099 A1

Cement manufacturing plant and method of operating a cement manufacturing plant

(22) 31.11.2022 (43) 08.06.2023 (57) A cement manufacturing plant comprises a raw meal mill, at least one preheater string, a clinker furnace and a clinker cooler comprising a first section and a...

more