WO2003018504A1 - Procede de production d'un element constituant ou d'un article absorbant a partir de dechets de papier - Google Patents

Procede de production d'un element constituant ou d'un article absorbant a partir de dechets de papier Download PDF

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Publication number
WO2003018504A1
WO2003018504A1 PCT/SE2002/001474 SE0201474W WO03018504A1 WO 2003018504 A1 WO2003018504 A1 WO 2003018504A1 SE 0201474 W SE0201474 W SE 0201474W WO 03018504 A1 WO03018504 A1 WO 03018504A1
Authority
WO
WIPO (PCT)
Prior art keywords
fibres
rest
dry content
product
moulding
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/SE2002/001474
Other languages
English (en)
Inventor
Bozena Nenna Olsson
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.)
Kemimaklarna Int AB
Original Assignee
Kemimaklarna Int AB
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
Application filed by Kemimaklarna Int AB filed Critical Kemimaklarna Int AB
Priority to EP02759033A priority Critical patent/EP1419120A1/fr
Priority to JP2003523171A priority patent/JP2005500924A/ja
Publication of WO2003018504A1 publication Critical patent/WO2003018504A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • B01J20/24—Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K1/00—Housing animals; Equipment therefor
    • A01K1/015—Floor coverings, e.g. bedding-down sheets ; Stable floors
    • A01K1/0152—Litter
    • A01K1/0154—Litter comprising inorganic material
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K1/00—Housing animals; Equipment therefor
    • A01K1/015—Floor coverings, e.g. bedding-down sheets ; Stable floors
    • A01K1/0152—Litter
    • A01K1/0155—Litter comprising organic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • 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
    • 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
    • C04B28/02—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 hydraulic cements other than calcium sulfates
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/32—Materials not provided for elsewhere for absorbing liquids to remove pollution, e.g. oil, gasoline, fat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2220/00—Aspects relating to sorbent materials
    • B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
    • B01J2220/48—Sorbents characterised by the starting material used for their preparation
    • B01J2220/4812—Sorbents characterised by the starting material used for their preparation the starting material being of organic character
    • B01J2220/4825—Polysaccharides or cellulose materials, e.g. starch, chitin, sawdust, wood, straw, cotton
    • B01J2220/4831—Polysaccharides or cellulose materials, e.g. starch, chitin, sawdust, wood, straw, cotton having been subjected to further processing, e.g. paper, cellulose pulp
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2220/00—Aspects relating to sorbent materials
    • B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
    • B01J2220/48—Sorbents characterised by the starting material used for their preparation
    • B01J2220/4875—Sorbents characterised by the starting material used for their preparation the starting material being a waste, residue or of undefined composition
    • B01J2220/4887—Residues, wastes, e.g. garbage, municipal or industrial sludges, compost, animal manure; fly-ashes
    • 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

Definitions

  • the invention relates to a process for the production of a recycle product, such as a building component product or an absorbent product.
  • the recycle product comprising at least rest fibres obtained from the recycle process for wasted paper material.
  • the invention also relates to the recycle products obtained by the process, such as building component products and absorbing products and their use.
  • the paper material may be reused within the paper industry for the production of different kinds of papers.
  • the wasted paper material contains several unwanted components, which are necessary to be removed. Examples of such components are adhesives, colours and printing inks.
  • the rest fibres comprises except for fibres, calcium and additives, such as lime, talc, colours and printing inks.
  • the rest fibres are mainly burned, which most often result in huge amounts of ashes, approximately 40-50% of the total amount of the rest fibres, due to the presence of high amount of minerals within the rest fibres.
  • the rest fibres have also been used in several processes to produce new products such as paper sheets, absorbent materials and building materials.
  • the processes which has been used so far either comprises addition of water or other components, such as the environmentally dangerous polyacrylamide to obtain a rest fibre mixture which is suitable to form new rest fibre products prior to drying the produced rest fibre.
  • a process which enables reuse of the rest fibres again and again to full-fill the future requirements to reuse materials from nature and also use materials, which are harmless to human beings.
  • the invention relates to a process for producing a recycle product, such as a building component product or a absorbent product.
  • the recycle products comprises rest fibres obtained as a waste product during the recycle process of wasted paper material, such as recycling of wasted newspapers, magazines, catalogues, advertising handouts and paper boxes.
  • wasted paper material such as recycling of wasted newspapers, magazines, catalogues, advertising handouts and paper boxes.
  • the recycle products being produced during the recycling of wasted paper material when new paper pulp is produced for the production new recycled paper materials.
  • the invention relates to a process for producing a building component product comprising the steps of providing rest fibres obtained as a waste during the recycling process of wasted paper material comprising at least a) from about 40 to about 85 % dry content of fibres, b) from about 10 to about 85 % dry content of calcium and from about 0.1 to about 20 % dry content of pigment and/or ink and moulding the building component product.
  • the invention relates to a process for producing an absorbent product comprising providing rest fibres obtained as a waste during the recycling process of wasted paper material comprising at least a) from about 40 to about 85 % dry content of fibres, b) from about 10 to about 85 % dry content of calcium and from about 0.1 to about 20 % dry content of pigment and/or ink and shaping the recycle product.
  • the invention also relates to products produced by the above mentioned processes, such as building and absorbing products and use of the processes or products.
  • the invention provides completely new processes for the production of recycle products wherein the recycle products comprises rest fibres obtained as a waste product during the recycle process of wasted paper material. Furthermore, the process saves our environment resources, such as the reuse of the rest fibres and minimal use of water and furthermore is a low cost process.
  • the process may be used for the production of absorbing and building component products and the produced products may be reused again and again without any need of purification to remove compound which are dangerous such as being cancerogenic for human beings or environmentally unfavourable.
  • rest fibres is intended to mean rest fibres which are discarded during the recycle process of wasted paper material wherein the recycle process is done to obtain new paper pulp.
  • the rest fibres comprise components such as fibres, calcium pigment and/or ink and one or more components used during the process for the production of paper pulp.
  • the paper pulp may further be used for the production of new paper.
  • wasted paper material is intended to mean paper material such a papers, magazines, catalogues, advertising handout, paper boxes etc, i.e., paper which has been treated with different components such as pigments, ink, adhesives, plastic layers etc. Paper material, which have been discarded.
  • pigment is intended to mean any pigment used to colour a paper or pigments of pictures.
  • ink is intended to mean any kind of ink, such as printing ink used in the paper industry.
  • the invention relates to a process for the production of recycled products, such as building- or absorbing products.
  • the process uses rest fibres, which has been discarded during the recycling of wasted paper material, which means the rest fibres are obtained when new paper pulp are produced from wasted paper material.
  • the paper pulp may be used for the production of new recycled papers.
  • the rest fibres, which are obtained as waste are often discarded and result in huge heaps, which uses a lot of space.
  • the rest fibres comprise different components, such as fibres, minerals, pigment and inks. Examples of minerals are potassium and calcium.
  • the components present in the rest fibres are components from the wasted paper material or components, additives, added during a known recycling process. However, the components within the rest fibres are environmentally friendly or present in acceptable amounts. Acceptable amounts being amounts, which are accepted as being non-harmful for human being and environmentally friendly to the environment.
  • the rest fibres used in the process comprises a) from about 40 to about 85 % dry content of fibres, b) from about 10 to about 85 % dry content of calcium and from about 0.1 to about 20 % (dry content) of pigment and/or ink, preferably at least a) from about 50 to about 60 % dry content of fibres, b) from about 15 to about 85 % dry content of calcium and from about 0.1 to about 20 % dry content of pigment and/or ink.
  • the calcium content may vary and be within the range of from about 10-85 % dry content or from about 20-85 % dry content, e.g., 30-85 % dry content or 40-85 % dry content, e.g., 50-85 % dry content.
  • the rest fibres may furthermore contain potassium in an amount ranging from about 0.1-10 % dry content and also minor amounts of other components which are of no importance for the recycle product of the invention.
  • the dry content of the rest fibres in the recycle product is of importance since if the dry content is to high the recycle product may be attacked by microorgansims, such as fungus. Microorganisms which may be present within the rest fibres or which may come in contact with the recycle product upon use of the rest fibres.
  • the dry content may be at least 60 %, preferably at least 80 %, 80-100 % such as 85 %. Therefor a step of drying may be needed if the rest fibres are not dry enough, i.e., has a dry content of at least 60 %.
  • the process may comprise a step of drying the rest fibres to a dry content to at least 60 %, such as from about 80 % to about 100%, e.g., from about 85 % to about 100% prior to producing (moulding or shaping) the recycle product.
  • the invention relates to a process for producing a building component product comprising providing rest fibres obtained as a waste during the recycling process of wasted paper material comprising at least a) from about 40 to about 85 % dry content of fibres, b) from about 10 to about 85 % dry content of calcium and from about 0.1 to about 20 % dry content of pigment and/or ink and moulding the building component product.
  • the moulding may be performed by several methods and examples of methods are injection-moulding, compression-moulding, press-moulding and cast- moulding.
  • a step of drying the rest fibres to a dry content to at least 60 %, such as from about 80 % to about 100%, e.g., from about 85 % to about 100% may be added prior to moulding the recycle product.
  • a step of sieving may be performed prior to moulding under certain circumstances. The sieving is performed to distribute the particles of the rest fibres into different groups upon their size, such as from ⁇ 2mm to > 8mm, e.g., ⁇ 2mm, 2-4 mm, 4-6.3 mm, > 6.3 mm or > 8 mm.
  • the sieved rest fibres particles are then subjected to a further step of moulding or die-casting to produce a recycle product. Drying may be performed either prior to sieving or after sieving.
  • an additional component such as a binding agent may be added to the rest fibres prior to the rest fibres being exposed to any treatment, such as drying, sieving or being moulding.
  • a binding agent examples include calcium lignosulphonate (WAFEX), polypropylene, polyvinylalcohol (HDPE) or ureaformaldehyde.
  • Calcium lignosulphonate, polypropylene, polyvinylalcohol and ureaformaldehyde are binding agents, which aid in binding the rest fibres into a building component product, such as plastic composites or plastic granulates used for the production of plastic products.
  • Ureaformaldehyde may be added to an amount of between 0.1 % -15 %. Examples of moulded products comprising additional components are found in example 2,4 and 5.
  • Examples of products, which may be produced by the process are different kind of building materials such as ceiling panels, facade panels, roof tiles, isolating material, sheets, such as floor sheets furniture and furniture parts, acoustic panels, panels for sound and heat insulation, sound elimination, pallets, transportation boxes, floors for containers, toys, consumer items and production of different kinds of fibres concrete and fibre cement.
  • Other examples are moulded parts for the car industry and different kind of packages including disposable cat boxes.
  • moulded sheets comprising foamed concrete in which between 20-30 % of concrete is mixed with 70-80 % of rest fibres using a method well-known for a person skilled in the art.
  • the foamed concrete sheets may have a thickness of approximately 25 mm, a format of about 600 x 600 mm and a weight being from about 5 to about 6 kg/m 2 .
  • an absorbent product comprising: providing rest fibres obtained as a waste during the recycling process of wasted paper material comprising at least a) from about 40 to about 85 % dry content of fibres, b) from about 10 to about 85 % dry content of calcium and from about 0.1 to about 20 % dry content of pigment and/or ink and shaping the absorbent product. Additionally a step of drying the rest fibres to a dry content to at least 60 %, such as from about 80 % to about 100%, e.g., from about 85 % to about 100% may be added prior to shaping the recycle product.
  • a step of sieving may be performed prior to shaping under certain circumstances.
  • a step of sieving fibres from calcium thereby, the process enables the shaping of an absorbing product which comprising calcium as a core and fibres as a coat (example 1).
  • an excellent absorbent material may be obtained, which can absorb excretion from animals, such as cats, cows, horses and pigs.
  • the recycle product may further absorb chemical compounds such as N, S, Cl, P and also different kinds of leakage products such as oil and other non environmental friendly chemical solutions.
  • the rest fibres of the absorbent product first absorb the excretion or chemical compound, which after being absorbed diffuse into the core comprising of calcium.
  • the calcium absorbs, neutralises and maintains the excretion or chemical compound within the core, which is coated with the fibres. Thereby, the excretion or chemical compound remains within the core of the absorbent product and wont diffuse back out from the absorbent product. Additionally the absorbent product has an efficient possibility to absorb NH 4 , thereby it may be used in stables, in the horse boxes to absorb the excretion from horses. Another advantage is that the absorbent product is light and easy for young people to carry around and thereby suitable for use in stables. The absorbent product may also be used in horse training areas.
  • the absorption recycle product may comprise certain additives such as antioxidants, pigments, perfumes, binding agents or mixtures thereof.
  • Moulded recycle products were produced using rest fibres using following moulding parameters; moulding former diameter - 140 mm compression moulding pressure - 300 bar moulding time - 90 sec,
  • the final moulding products containing binding agents were dried in a hot blast furnace at 60° C for at least 12 hours.
  • the rest fibres were either directly moulded or mixed with a binding agent prior to moulding. 80 g of rest fibres was mixed with the binding agent to a homogenous mixture and moulded using the above mentioned parameters.
  • the binding agents including the used amounts are shown in table 1.
  • the binding agent were mixed with appropriate amount of water and homogenised under stirring prior to mixing with the rest fibres.
  • the binding agent polyvinylalcohol was mixed and heated to 75 ° C.
  • the binding agent WAFEX was obtained from BORREGAARD Ligno Tech. and polyvinyalcohol 72 000 obtained from MERCH Schuchardt.
  • moulding former diameter 140 mm compression moulding pressure - 50 bar moulding time - 15 min
  • the rest fibres were mixed with a binding agent and water prior to moulding. 300 g of rest fibres was mixed with 450 g of binding agent and 350 g water was added and mixed to a homogenous mixture and moulded using the above mentioned parameters. 150 g of water was emitted during the moulding (see table 2).
  • moulded recycle product using ureaformaldehyde Moulded recycle products were produced using rest fibres using following moulding parameters; moulding former diameter - 140 mm heating the moulder to 150 °C prior to moulding compression moulding pressure - 100 bar moulding time - 4 min, including aeration for 2 sec every 30 second
  • the final moulding products dried at room temperature.
  • the rest fibres were mixed with the binding agent prior to moulding. 850 g of rest fibres was mixed with 150 g of binding and mixed to a homogenous mixture and moulded using the above mentioned parameters.
  • the moulded recycle product may be used as a plastic composite.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Environmental Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Zoology (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Inorganic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Health & Medical Sciences (AREA)
  • Civil Engineering (AREA)
  • Public Health (AREA)
  • Paper (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Processing Of Solid Wastes (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

Cette invention concerne un procédé de fabrication d'un produit de recyclage, qui comprend au moins des déchets de fibres provenant d'un processus de recyclage d'un matériau à base de déchets de papier contenant au moins: a) environ 40 à 85 % de teneur en matières séches de fibres; b) environ 10 à 85 % de teneur en matières séches de calcium et environ 0,1 à 20 % de teneur en matières séches de pigment et/ou d'encre. Elle concerne également un procédé de fabrication de produits de recyclage, tels que des éléments constituants ou des articles absorbants. Elle concerne en outre des produits de recyclage obtenus par le procédé de l'invention.
PCT/SE2002/001474 2001-08-23 2002-08-20 Procede de production d'un element constituant ou d'un article absorbant a partir de dechets de papier Ceased WO2003018504A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP02759033A EP1419120A1 (fr) 2001-08-23 2002-08-20 Procede de production d'un element constituant ou d'un article absorbant a partir de dechets de papier
JP2003523171A JP2005500924A (ja) 2001-08-23 2002-08-20 製紙における廃物から建築物構成材又は吸収材生成品を製造する方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0102801A SE0102801D0 (sv) 2001-08-23 2001-08-23 Recycle product
SE0102801-8 2001-08-23

Publications (1)

Publication Number Publication Date
WO2003018504A1 true WO2003018504A1 (fr) 2003-03-06

Family

ID=20285098

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2002/001474 Ceased WO2003018504A1 (fr) 2001-08-23 2002-08-20 Procede de production d'un element constituant ou d'un article absorbant a partir de dechets de papier

Country Status (5)

Country Link
EP (1) EP1419120A1 (fr)
JP (1) JP2005500924A (fr)
CN (1) CN1556777A (fr)
SE (1) SE0102801D0 (fr)
WO (1) WO2003018504A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102776806A (zh) * 2012-07-26 2012-11-14 刘保军 一种用造纸废料制作成型板材的方法
CN103785668A (zh) * 2014-01-23 2014-05-14 桂林奇峰纸业有限公司 一种处理造纸废渣的方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI402113B (zh) * 2010-01-08 2013-07-21 Acl Footwear Co Ltd Recycling newspapers to create methods of drawing moisture resistant items

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4221751A (en) * 1979-03-07 1980-09-09 Board Of Control Of Michigan Technological University Articles molded from papermill sludge
WO1990011978A1 (fr) * 1989-03-31 1990-10-18 Fosse Limited Produit cellulosique, son procede de production et ses emplois
EP0515959A2 (fr) * 1991-05-23 1992-12-02 Hard Ag Granulés et procédé pour les obtenir
US5196061A (en) * 1988-01-15 1993-03-23 Thomas Robert C Cementitious composite that includes delignified cellulosic material and process of making it
US5496441A (en) * 1993-05-26 1996-03-05 Tran Industrial Research Inc. Utilization of deinking by-product in building materials
US5724915A (en) * 1995-07-07 1998-03-10 Sanyo Chemical Industries, Ltd. Material for the treatment of pet excretion and method of producing the same material
EP0928842A2 (fr) * 1995-06-07 1999-07-14 Marcal Paper Mills, Inc. Particules grossières humides et procédé de fabrication des particules grossières humides
DE19839240A1 (de) * 1998-08-28 2000-03-02 Ytong Deutschland Ag Hygienegranulat
US6146498A (en) * 1997-04-30 2000-11-14 Kimberly-Clark Worldwide, Inc. Wound product cores and processes for making them

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4221751A (en) * 1979-03-07 1980-09-09 Board Of Control Of Michigan Technological University Articles molded from papermill sludge
US5196061A (en) * 1988-01-15 1993-03-23 Thomas Robert C Cementitious composite that includes delignified cellulosic material and process of making it
WO1990011978A1 (fr) * 1989-03-31 1990-10-18 Fosse Limited Produit cellulosique, son procede de production et ses emplois
EP0515959A2 (fr) * 1991-05-23 1992-12-02 Hard Ag Granulés et procédé pour les obtenir
US5496441A (en) * 1993-05-26 1996-03-05 Tran Industrial Research Inc. Utilization of deinking by-product in building materials
EP0928842A2 (fr) * 1995-06-07 1999-07-14 Marcal Paper Mills, Inc. Particules grossières humides et procédé de fabrication des particules grossières humides
US5724915A (en) * 1995-07-07 1998-03-10 Sanyo Chemical Industries, Ltd. Material for the treatment of pet excretion and method of producing the same material
US6146498A (en) * 1997-04-30 2000-11-14 Kimberly-Clark Worldwide, Inc. Wound product cores and processes for making them
DE19839240A1 (de) * 1998-08-28 2000-03-02 Ytong Deutschland Ag Hygienegranulat

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102776806A (zh) * 2012-07-26 2012-11-14 刘保军 一种用造纸废料制作成型板材的方法
CN103785668A (zh) * 2014-01-23 2014-05-14 桂林奇峰纸业有限公司 一种处理造纸废渣的方法

Also Published As

Publication number Publication date
CN1556777A (zh) 2004-12-22
EP1419120A1 (fr) 2004-05-19
JP2005500924A (ja) 2005-01-13
SE0102801D0 (sv) 2001-08-23

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