WO1994027924A3 - Utilization of deinking by-product in building materials - Google Patents

Utilization of deinking by-product in building materials Download PDF

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Publication number
WO1994027924A3
WO1994027924A3 PCT/CA1994/000299 CA9400299W WO9427924A3 WO 1994027924 A3 WO1994027924 A3 WO 1994027924A3 CA 9400299 W CA9400299 W CA 9400299W WO 9427924 A3 WO9427924 A3 WO 9427924A3
Authority
WO
WIPO (PCT)
Prior art keywords
product
deinking
gypsum
drywall
building
Prior art date
Application number
PCT/CA1994/000299
Other languages
French (fr)
Other versions
WO1994027924A2 (en
Inventor
Hoc Nghia Tran
Original Assignee
Tran Ind Res Inc
Hoc Nghia Tran
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 GB9310891A external-priority patent/GB9310891D0/en
Application filed by Tran Ind Res Inc, Hoc Nghia Tran filed Critical Tran Ind Res Inc
Priority to AU69219/94A priority Critical patent/AU6921994A/en
Publication of WO1994027924A2 publication Critical patent/WO1994027924A2/en
Publication of WO1994027924A3 publication Critical patent/WO1994027924A3/en

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
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
    • 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
    • C04B18/18—Waste materials; Refuse organic
    • C04B18/24—Vegetable refuse, e.g. rice husks, maize-ear refuse; Cellulosic materials, e.g. paper, cork
    • C04B18/241—Paper, e.g. waste paper; Paper pulp
    • C04B18/243—Waste from paper processing or recycling paper, e.g. de-inking sludge
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00612—Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
    • C04B2111/0062—Gypsum-paper board like materials
    • 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

Abstract

Deinking by-product from wastepaper recycling operations is incorporated into drywall or other gypsum-based building products, such as building blocks. The deinking by-product is diluted and mixed with stucco (calcium sulfate hemihydrate). The resulting slurry preferably is subjected to an initial dewatering, following the on-set of hardening of the gypsum, and drywall or other building product is formed from the dewatered material. A significant loading of fibrous material in the drywall sheet or other gypsum product is achieved using the procedure, imparting improved flexural strength to the product. The preferred procedure also may be used to incorporate pulp mill clarifier sludge and virgin or recycled wood pulp into the building product. A pattern of depressions may be formed in one or both faces of the sheet to decrease the overall weight of product.
PCT/CA1994/000299 1993-05-26 1994-05-25 Utilization of deinking by-product in building materials WO1994027924A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU69219/94A AU6921994A (en) 1993-05-26 1994-05-25 Utilization of deinking by-product in building materials

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB9310891A GB9310891D0 (en) 1993-05-26 1993-05-26 Utilization of deinking sludge in building materials
GB9310891.8 1993-05-26
US08/175,119 1993-12-29
US08/175,119 US5496441A (en) 1993-05-26 1993-12-29 Utilization of deinking by-product in building materials

Publications (2)

Publication Number Publication Date
WO1994027924A2 WO1994027924A2 (en) 1994-12-08
WO1994027924A3 true WO1994027924A3 (en) 1995-02-09

Family

ID=26302952

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA1994/000299 WO1994027924A2 (en) 1993-05-26 1994-05-25 Utilization of deinking by-product in building materials

Country Status (2)

Country Link
AU (1) AU6921994A (en)
WO (1) WO1994027924A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6572736B2 (en) * 2000-10-10 2003-06-03 Atlas Roofing Corporation Non-woven web made with untreated clarifier sludge
WO2015126336A1 (en) * 2014-02-24 2015-08-27 Çam Caner A panel based on the waste remaining from the waste paper recycling process and the method for the manufacture of the same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3188751A (en) * 1962-10-29 1965-06-15 Hydrand Corp Method of producing building aggregate utilizing sludge residue from paper de-inking process
EP0492121A1 (en) * 1990-12-20 1992-07-01 Peter Wolters Process of treating sludge from paper production effluents and use of this sludge
DE4127929A1 (en) * 1991-08-23 1993-02-25 Bold Joerg Continuous mfr. of fibre-reinforced plasterboard - from waste paper fibres and gypsum of controlled density and particle size
US5196061A (en) * 1988-01-15 1993-03-23 Thomas Robert C Cementitious composite that includes delignified cellulosic material and process of making it

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3188751A (en) * 1962-10-29 1965-06-15 Hydrand Corp Method of producing building aggregate utilizing sludge residue from paper de-inking process
US5196061A (en) * 1988-01-15 1993-03-23 Thomas Robert C Cementitious composite that includes delignified cellulosic material and process of making it
EP0492121A1 (en) * 1990-12-20 1992-07-01 Peter Wolters Process of treating sludge from paper production effluents and use of this sludge
DE4127929A1 (en) * 1991-08-23 1993-02-25 Bold Joerg Continuous mfr. of fibre-reinforced plasterboard - from waste paper fibres and gypsum of controlled density and particle size

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
C.O. THOMAS ET AL: "WASTE PAPER FIBERS IN CEMENTITIOUS COMPOSITES", ABSTRACT BULLETIN OF THE INSTITUTE OF PAPER CHEMISTRY, vol. 57, no. 10, April 1987 (1987-04-01), APPLETON US, pages 1441, XP000013099 *
SB. NAUCH: "MANUFACTURE OF FIBERBOARDS FROM WASTE-PAPER PROCESSING WASTES", ABSTRACT BULLETIN OF THE INSTITUTE OF PAPER CHEMISTRY, vol. 57, no. 7, January 1988 (1988-01-01), APPLETON US, pages 956, XP000008891 *

Also Published As

Publication number Publication date
AU6921994A (en) 1994-12-20
WO1994027924A2 (en) 1994-12-08

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