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WO1993015833A1 - Boulettes fibreuses oleophiles - Google Patents

Boulettes fibreuses oleophiles Download PDF

Info

Publication number
WO1993015833A1
WO1993015833A1 PCT/NO1993/000020 NO9300020W WO9315833A1 WO 1993015833 A1 WO1993015833 A1 WO 1993015833A1 NO 9300020 W NO9300020 W NO 9300020W WO 9315833 A1 WO9315833 A1 WO 9315833A1
Authority
WO
WIPO (PCT)
Prior art keywords
wood
pulp
particles
drying
oil
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/NO1993/000020
Other languages
English (en)
Inventor
Arne Nicolai Soteland
Einar BØHMER
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.)
COGITO CONSULTING AS
Original Assignee
COGITO CONSULTING AS
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 COGITO CONSULTING AS filed Critical COGITO CONSULTING AS
Priority to CA002127252A priority Critical patent/CA2127252A1/fr
Publication of WO1993015833A1 publication Critical patent/WO1993015833A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B15/00—Cleaning or keeping clear the surface of open water; Apparatus therefor
    • E02B15/04—Devices for cleaning or keeping clear the surface of open water from oil or like floating materials by separating or removing these materials
    • E02B15/10—Devices for removing the material from the surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02—Separation of non-miscible liquids
    • B01D17/0202—Separation of non-miscible liquids by ab- or adsorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02—Separation of non-miscible liquids
    • B01D17/0208—Separation of non-miscible liquids by sedimentation
    • B01D17/0214—Separation of non-miscible liquids by sedimentation with removal of one of the phases
    • 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
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/68—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
    • C02F1/681—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water by addition of solid materials for removing an oily layer on water
    • 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
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20—Controlling water pollution; Waste water treatment
    • Y02A20/204—Keeping clear the surface of open water from oil spills

Definitions

  • Products of unbleached and bleached cellulose have also been suggested for this purpose. These products are mostly hydrophylic by nature, and therefore it has been necessary to add significant amounts of chemicals like wax emulsions, resins, alum etc. in order to make the product hydrophobic. This is absolutely necessary if the product is intended for use in open sea.
  • Such products are mentioned in NO Patent No. 117.169, and the application of organic materials like saw dust with a particle size pre- ferably from 0,25 to 2 mm is described therein.
  • chemicals like methyl-trichloro-silane are used in order to achieve a hydrophobic effect, and no attempt is made to utilize the chemicals which is present in the wood itself.
  • the idea that the chemicals in the wood might be used to attain a hydrophobic effect has apparently not occurred to the inventors of NO patent No. 137.688. It should also be added that the density of the product are given to be in the range of 3,2 - 24 kg/m 3 , and this is much lower than the density of the particles made in accordance with the present inven- tion.
  • the problem may be expressed as how to make porous partic ⁇ les with sufficient strength not to disentegrate in open sea under the mechanical strains involved and with a hydro- phobic sur-face which will permit only a minimum of water to be absorbed. It should be added that it is virtually impossible to prevent water from penetrating in the vapour phase. This amount will be a function of the water tempera ⁇ ture, its vapour pressure and also the time the particles are in contact with the water.
  • the simplest process will be to treat wood chips rich in extractives in modern refiners without use of chemicals , but at higher temperatures.
  • the tempera ⁇ tures will frequently be between 115° and 130°C, but tempe ⁇ ratures down to about 100° may be accepted during the defi- bration process.
  • This thermo-mechanical pulp will be dried at higher temperature while rotating, and the pulp is natu ⁇ rally acidified by the organic acids liberated during the drying process and the subsequent storage. It will however, also be possible to make a satisfactory product by impreg ⁇ nating the chips with chemicals such as alkali and/or sul- fite.
  • the pulp will in this case be called CTMP (Chemi- Thermo-Mechanical-Pulp) , and the advantage of this process is that the defibration will be more complete and the average fiber length greater.
  • CTMP Chemical- Thermo-Mechanical-Pulp
  • the main part of the pulp was converted to spherical particles of varying sizes, and after complete drying and storage at a somewhat higher temperature for some days, the particles had developed a hydrophobic surface enabling them to float on water for a couple of days. At the same time the particles willingly absorbed oil in an amount corresponding to several times the weight of the fibers.
  • Example 2 The main part of the pulp was converted to spherical particles of varying sizes, and after complete drying and storage at a somewhat higher temperature for some days, the particles had developed a hydrophobic surface enabling them to float on water for a couple of days. At the same time the particles willingly absorbed oil in an amount corresponding to several times the weight of the fibers.
  • Example 2 The main part of the pulp was converted to spherical particles of varying sizes, and after complete drying and storage at a somewhat higher temperature for some days, the particles had developed a hydrophobic surface enabling them to float on water for a couple of days. At the same time the particles willingly absorbed oil
  • a load of Norwegian pine like the wood used in Example l was impregnated with 1% NaOH and 3% sodium sulfite.
  • the impregnated chips were treated in the refiner at 115°C in two stages as mentioned in a preceding paragraph to a Freeness of 200 CSF.
  • the solid content from the refiners was about 22%.
  • the pulp was dried at 110"C to a solid content of 10% under slow rotation. The pulp was then stored for a few days at a slightly elevated temperature. The greater part of the particles were spherical in shape, and all of them developed a hydrophobic surface.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Structural Engineering (AREA)
  • Analytical Chemistry (AREA)
  • Medicinal Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Mechanical Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Public Health (AREA)
  • Materials Engineering (AREA)
  • Paper (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

Matière oléophile de forme arrondie et sphérique, constituée de pâte thermomécanique ou d'une autre pâte à haut rendement contenant au moins 2 % en poids (par rapport au poids du bois) des constituants naturels extractifs du bois, ces constituants étant utilisés pour rendre la matière hydrophobe et oléophile par le durcissement artificiel de la matière à une température supérieure à 100 °C en moins de 5 minutes.
PCT/NO1993/000020 1992-02-07 1993-02-03 Boulettes fibreuses oleophiles Ceased WO1993015833A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002127252A CA2127252A1 (fr) 1992-02-07 1993-02-03 Pastilles de fibre absorbant les huiles

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO920499 1992-02-07
NO920499A NO175804C (no) 1992-02-07 1992-02-07 Oljeabsorberende materiale, samt fremgangsmåte ved fremstilling derav

Publications (1)

Publication Number Publication Date
WO1993015833A1 true WO1993015833A1 (fr) 1993-08-19

Family

ID=19894851

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO1993/000020 Ceased WO1993015833A1 (fr) 1992-02-07 1993-02-03 Boulettes fibreuses oleophiles

Country Status (4)

Country Link
AU (1) AU3576693A (fr)
CA (1) CA2127252A1 (fr)
NO (1) NO175804C (fr)
WO (1) WO1993015833A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19757071A1 (de) * 1997-12-20 1999-06-24 Univ Freiberg Bergakademie Verfahren zur Herstellung von hydrophoben, lose schüttbaren und gut schwimmfähigen spänigen Produkten aus nachwachsenden und/oder bio-stämmigen Rohstoffen sowie aus Harzen und/oder Wachsen mit hohen Erweichungspunkten von größer/gleich 60 DEG C
RU2135261C1 (ru) * 1997-12-05 1999-08-27 Инженерная компания института катализа-XXI Фильтрующий материал
WO1999049949A1 (fr) * 1998-03-31 1999-10-07 Oy Sanfix Finland Ab Procede et filtre de purification de l'eau
WO2003008120A3 (fr) * 2001-07-17 2003-10-02 Zhi-Wei Liang Processus de sechage thermochimique oxydatif destine a modifier les caracteristiques hydrophiles/hydrophobes de substances organiques naturelles
RU2277967C2 (ru) * 2001-07-17 2006-06-20 Зи-Вей ЛИАНГ Способ окислительной термохимической сушки для изменения гидрофильных/гидрофобных свойств натуральных органических веществ
US9040608B2 (en) 2010-04-01 2015-05-26 Evonik Degussa Gmbh Curable mixture

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE507898C2 (sv) * 1996-09-05 1998-07-27 Bo Soedergren Industriprodukte Absorptionsmedel för vätskor samt förfarande för framställning av sådant medel

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0094363A1 (fr) * 1982-05-10 1983-11-16 Papyrus Kopparfors AB Composition absorbant de l'huile en forme de particules et procédé pour l'utilisation de cette composition pour absorber de l'huile

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0094363A1 (fr) * 1982-05-10 1983-11-16 Papyrus Kopparfors AB Composition absorbant de l'huile en forme de particules et procédé pour l'utilisation de cette composition pour absorber de l'huile

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2135261C1 (ru) * 1997-12-05 1999-08-27 Инженерная компания института катализа-XXI Фильтрующий материал
DE19757071A1 (de) * 1997-12-20 1999-06-24 Univ Freiberg Bergakademie Verfahren zur Herstellung von hydrophoben, lose schüttbaren und gut schwimmfähigen spänigen Produkten aus nachwachsenden und/oder bio-stämmigen Rohstoffen sowie aus Harzen und/oder Wachsen mit hohen Erweichungspunkten von größer/gleich 60 DEG C
WO1999049949A1 (fr) * 1998-03-31 1999-10-07 Oy Sanfix Finland Ab Procede et filtre de purification de l'eau
WO2003008120A3 (fr) * 2001-07-17 2003-10-02 Zhi-Wei Liang Processus de sechage thermochimique oxydatif destine a modifier les caracteristiques hydrophiles/hydrophobes de substances organiques naturelles
RU2277967C2 (ru) * 2001-07-17 2006-06-20 Зи-Вей ЛИАНГ Способ окислительной термохимической сушки для изменения гидрофильных/гидрофобных свойств натуральных органических веществ
US7544635B2 (en) 2001-07-17 2009-06-09 Zhi-Wei Liang Process for changing hydrophilic/hydrophobic characteristics
US9040608B2 (en) 2010-04-01 2015-05-26 Evonik Degussa Gmbh Curable mixture

Also Published As

Publication number Publication date
AU3576693A (en) 1993-09-03
NO920499D0 (no) 1992-02-07
CA2127252A1 (fr) 1993-08-19
NO175804B (no) 1994-09-05
NO175804C (no) 1994-12-14
NO920499L (no) 1993-08-09

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