WO 2021/124261 A1

Method of producing cement clinker and a second calcined material

(22) 18.12.2020

(43) 24.06.2021

(57) A method of producing cement clinker and a second calcined material, wherein the cement clinker is produced in a first production line and the second calcined material is produced from a raw material in a second production line by carrying out the following steps: e) optionally drying the raw material in a dryer, g) calcining the optionally dried raw material in a rotary kiln to obtain the second calcined material, wherein the sensible heat of a hot gas in the first production line is used as a heat source in the calcining step g) for calcining the raw material, and wherein the rotary kiln exhaust gas coming from the calcining step g) is introduced into the first production line for the secondary combustion of the rotary kiln exhaust gas.

(71) Holcim Technology Ltd, Grafenauweg 10, 6300 Zug (CH)

(84) ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)

x

Related articles:

Issue 2021-6 WO 2021/001781 A1

Clinker

(22) 02.07.2020 (43) 07.01.2021 (57) The present invention relates to clinker, in particular cement clinker. The invention provides a method of preparing clinker and extends to clinker prepared in...

more
Issue 2021-5 WO 2021/006155 A1

Sludge processing method and cement manufacturing system

(22) 01.07.2020 (43) 14.01.2021 (57) This cement manufacturing system comprises: a suspension pre-heater for pre-heating a cement raw material; a calcining furnace for calcining the pre-heated cement...

more
Issue 2017-7-8 WO 2017/072047 A1

Method for producing a cement clinker substitute which is made primarily of calcined clay

(22) 21.10.2016 (43) 04.05.2017 (57) The invention relates to a method for producing a cement clinker substitute which is made primarily from calcined clay, wherein at least two different clay raw...

more
Issue 2017-7-8 EP 2 870 116 B1

Method and system for producing cement clinker from raw cement mixture

(22) 02.07.2013 (45) 17.05.2017 (57) The invention relates to a method for producing a cement clinker substitute which is made primarily from calcined clay, wherein at least two different clay raw...

more
Issue 2021-5 WO 2021/079368 A1

Novel flux/mineralizer for cement clinkering and method of manufacture thereof

(22) 22.10.2020 (43) 29.04.2021 (57) This invention discloses a method for producing a flux/mineralizer for cement clinkering that contains CaF2 and other residues of fluoride salts. The...

more