WO2004108621A3 - Procede pour enrichir des cendres volantes - Google Patents

Procede pour enrichir des cendres volantes Download PDF

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Publication number
WO2004108621A3
WO2004108621A3 PCT/US2004/016266 US2004016266W WO2004108621A3 WO 2004108621 A3 WO2004108621 A3 WO 2004108621A3 US 2004016266 W US2004016266 W US 2004016266W WO 2004108621 A3 WO2004108621 A3 WO 2004108621A3
Authority
WO
WIPO (PCT)
Prior art keywords
fly ash
ash beneficiation
beneficiation
heating
melts
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2004/016266
Other languages
English (en)
Other versions
WO2004108621A2 (fr
Inventor
Hugh H Wang
Stephen M Bryan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cemex Inc
Original Assignee
Cemex Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US10/249,935 external-priority patent/US20040231566A1/en
Application filed by Cemex Inc filed Critical Cemex Inc
Publication of WO2004108621A2 publication Critical patent/WO2004108621A2/fr
Publication of WO2004108621A3 publication Critical patent/WO2004108621A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00—Hydraulic cements
    • C04B7/24—Cements from oil shales, residues or waste other than slag
    • C04B7/243—Mixtures thereof with activators or composition-correcting additives, e.g. mixtures of fly ash and alkali activators
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04—Waste materials; Refuse
    • C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
    • C04B18/08—Flue dust, i.e. fly ash
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Civil Engineering (AREA)
  • Processing Of Solid Wastes (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

L'invention concerne un procédé pour convertir des cendres volantes faiblement réactives en matière pouzzolanique très réactive, comprenant la combustion des cendres volantes, jusqu'à ce qu'au moins une partie des cendres volantes fonde ; puis le refroidissement rapide des cendres volantes. Lesdites cendres volantes vitrifiées ainsi obtenues présentent des propriétés de cimentation améliorées par rapport aux cendres volantes non traitées.
PCT/US2004/016266 2003-05-20 2004-05-20 Procede pour enrichir des cendres volantes Ceased WO2004108621A2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US24993003A 2003-05-20 2003-05-20
US10/249,935 US20040231566A1 (en) 2003-05-20 2003-05-20 Process for Fly Ash Beneficiation
US10/249,935 2003-05-30
US10/249,930 2003-05-30

Publications (2)

Publication Number Publication Date
WO2004108621A2 WO2004108621A2 (fr) 2004-12-16
WO2004108621A3 true WO2004108621A3 (fr) 2005-06-16

Family

ID=33513597

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/016266 Ceased WO2004108621A2 (fr) 2003-05-20 2004-05-20 Procede pour enrichir des cendres volantes

Country Status (1)

Country Link
WO (1) WO2004108621A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2168930A4 (fr) * 2007-05-10 2011-11-30 Cementos Portland Vaderrivas S A Matériau vitreux possédant des propriétés de cimentation et son procédé de fabrication
ES2779231T3 (es) * 2012-03-14 2020-08-14 Mercury Capture Intellectual Property Llc Procedimiento de tratamiento de carbón activado y residuos de combustión del carbón
EP4230584A3 (fr) * 2016-01-19 2023-12-13 Solidia Technologies, Inc. Nouvelles chimies du ciment

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4977837A (en) * 1990-02-27 1990-12-18 National Recovery Technologies, Inc. Process and apparatus for reducing heavy metal toxicity in fly ash from solid waste incineration
US5521132A (en) * 1994-09-01 1996-05-28 The United States Of America As Represented By The Secretary Of The Navy Ash-based ceramic materials
US5584255A (en) * 1995-06-07 1996-12-17 Proler Environmental Services, Inc. Method and apparatus for gasifying organic materials and vitrifying residual ash
DE19630151A1 (de) * 1995-07-25 1997-01-30 Ebara Corp Verfahren zum Schmelzen von Asche
US5616160A (en) * 1993-05-24 1997-04-01 Corning Incorporated Process for vitrifying incinerator ash
US5935885A (en) * 1996-04-09 1999-08-10 Vortec Corporation Manufacture of ceramic tiles from fly ash

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4977837A (en) * 1990-02-27 1990-12-18 National Recovery Technologies, Inc. Process and apparatus for reducing heavy metal toxicity in fly ash from solid waste incineration
US5616160A (en) * 1993-05-24 1997-04-01 Corning Incorporated Process for vitrifying incinerator ash
US5521132A (en) * 1994-09-01 1996-05-28 The United States Of America As Represented By The Secretary Of The Navy Ash-based ceramic materials
US5584255A (en) * 1995-06-07 1996-12-17 Proler Environmental Services, Inc. Method and apparatus for gasifying organic materials and vitrifying residual ash
DE19630151A1 (de) * 1995-07-25 1997-01-30 Ebara Corp Verfahren zum Schmelzen von Asche
US5935885A (en) * 1996-04-09 1999-08-10 Vortec Corporation Manufacture of ceramic tiles from fly ash

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
BARBIERI ET AL.: "Vitrification of fly ash from thermal power stations", GLASS TECHNOLOGY, vol. 38, no. 5, 1997, pages 165 - 170, XP000703365 *
HIGASHI ET AL., 7TH ISWA INT'L CONGRESS AND EXHIBITION, vol. 2, 27 October 1996 (1996-10-27) - 1 November 1996 (1996-11-01), pages II/24 - II/242 *
ITO: "Vitrification of fly ash by swirling flow furnace", WASTE MGMT., vol. 16, no. 5/6, 1997, pages 453 - 460, XP004063876 *
MILOSAVLJEVIC ET AL.: "Flash vitrification of fly ash", REWAS-GLOBAL SYMPOSIUM ON RECYCLING WASTE TRMT, 1999, pages 295 - 300 *

Also Published As

Publication number Publication date
WO2004108621A2 (fr) 2004-12-16

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