Global Patent Index - EP 1993968 A1

EP 1993968 A1 20081126 - A PROCESS FOR THE PRODUCTION OF REACTIVE BLAST FURNACE SLAG

Title (en)

A PROCESS FOR THE PRODUCTION OF REACTIVE BLAST FURNACE SLAG

Title (de)

VERFAHREN ZUR HERSTELLUNG VON REAKTIVER HOCHOFENSCHLACKE

Title (fr)

PROCESSUS DE PRODUCTION DE LAITIER DE HAUT FOURNEAU REACTIF

Publication

EP 1993968 A1 20081126 (EN)

Application

EP 06779912 A 20060731

Priority

  • IB 2006002077 W 20060731
  • IN 641DE2006 A 20060310

Abstract (en)

[origin: WO2007105029A1] The invention particularly relates to a process for increasing the reactivity of ground granulated blast furnace slag using surface activation through short mechanical activation time (10-60 min) and it starts to hydrate in short time (48 h or less) when mixed with water without any chemical additive and completely hydrates in maximum 28 days forming cementitious product. The products produced by the process of present invention may be of different particle sizes and shapes, different specific surface areas, different surface charge (Zeta potential) and different reactivity. The reactive blast furnace slag shall be useful in Portland Slag Cement (PSC), Geopolymer, immobilisation and stabilisation of toxic wastes and newer nano-composite materials.

IPC 8 full level

C04B 18/14 (2006.01); C04B 18/04 (2006.01)

CPC (source: EP)

C04B 18/141 (2013.01); Y02W 30/91 (2015.05)

C-Set (source: EP)

C04B 18/141 + C04B 20/026

Citation (search report)

See references of WO 2007105029A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

WO 2007105029 A1 20070920; AU 2006340282 A1 20070920; CA 2645348 A1 20070920; CN 101405237 A 20090408; EP 1993968 A1 20081126; KR 20080102294 A 20081124

DOCDB simple family (application)

IB 2006002077 W 20060731; AU 2006340282 A 20060731; CA 2645348 A 20060731; CN 200680053979 A 20060731; EP 06779912 A 20060731; KR 20087024594 A 20081008