WO2003014468A2 - Utilisation d'emulsions lors du desencrage - Google Patents

Utilisation d'emulsions lors du desencrage Download PDF

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Publication number
WO2003014468A2
WO2003014468A2 PCT/EP2002/008683 EP0208683W WO03014468A2 WO 2003014468 A2 WO2003014468 A2 WO 2003014468A2 EP 0208683 W EP0208683 W EP 0208683W WO 03014468 A2 WO03014468 A2 WO 03014468A2
Authority
WO
WIPO (PCT)
Prior art keywords
oil
saturated
fatty acid
waste paper
use according
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/EP2002/008683
Other languages
German (de)
English (en)
Other versions
WO2003014468A3 (fr
Inventor
Ingo Von Medvey
Thomas Rajcsanyi
Johann Schulte
Joachim Werres
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.)
Stockhausen GmbH and Co KG
Original Assignee
Stockhausen GmbH and Co KG
Chemische Fabrik Stockhausen GmbH
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 Stockhausen GmbH and Co KG, Chemische Fabrik Stockhausen GmbH filed Critical Stockhausen GmbH and Co KG
Priority to EP02760308A priority Critical patent/EP1417375A2/fr
Publication of WO2003014468A2 publication Critical patent/WO2003014468A2/fr
Publication of WO2003014468A3 publication Critical patent/WO2003014468A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
    • D21C5/02—Working-up waste paper
    • D21C5/025—De-inking
    • D21C5/027—Chemicals therefor
    • 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
    • Y02W30/64—Paper recycling

Definitions

  • the present invention relates to the use of oil-in-water emulsions to reduce the dirt points when deinking waste paper materials.
  • EP 0 027 922 A1 teaches a flotation agent for removing pigments from waste paper, consisting of a carboxylic acid ester and 0 to 10% by weight, based on the ester, of a surface-active compound.
  • EP 0 906 465 B1 teaches a deinking process, preferably flotation deinking, in which an alkaline earth metal dispersion is added to the pulp slurry in an amount sufficient to remove the printing ink from the slurry and to increase the brightness of the pulp.
  • EP 0 823 949 B1 teaches a process for deinking waste paper materials which have dye pigments.
  • the waste paper is processed into a slurry, which is mixed with an aqueous medium that contains a surface-active substance.
  • EP 0 738 341 discloses a collector for decolorizing waste paper using the flotation process, which contains a polyester.
  • DE-OS 27 56 711 B1 claims a process in which the waste paper is impregnated with surface-active agents and, if appropriate, alkalis and treated with terpenic hydrocarbons and alcohols or their mixture with the addition of carrier substances which contain calcium soaps, and the suspension formed is treated in the usual way.
  • a saturated or unsaturated fatty alcohol a saturated or unsaturated fatty acid, a fatty acid monoalkyl ester, a fatty acid amide or a fatty acid monoalkylamide of a saturated or unsaturated fatty acid, the fatty alcohol, the fatty acids and fatty acid residues of the listed compounds having 8 to 30 carbon atoms.
  • Mono- or polyester of a saturated or unsaturated carboxylic acid or dicarboxylic acid having 4 to 30 carbon atoms and a monoalcohol and / or a polyol, with the exception of polyethylene glycols, are preferably used as the oil phase, alone or in a mixture.
  • the oil phase very particularly preferably has di-n-butyl adipate.
  • the oil component is preferably emulsified in water by means of a suitable, known emulsifier, preferably at least one oil-in-water emulsifier and / or at least one emulsifying aid.
  • emulsifiers and emulsifying aids are in Ulimann's Encycl. of ind. Chem Vol. 9, pages 312-325 (19). This text passage is hereby introduced as a reference and is therefore considered part of the disclosure.
  • the hydrophobic phase mainly represents the active ingredient.
  • hydrophobic oil components saturated hydrocarbons such as octane, tetradecane, octadecane, icodecane, decene, hexadecene and technical alpha-olefins,
  • Fatty alcohols such as octanol, dodecanol, tridecanol, hexadecanol, octadecanol, behenyl alcohol, Fatty acids such as capric acid, stearic acid, melissic acid, oleic acid and linolenic acid,
  • Fatty acid esters such as stearyl acid methyl ester, palmitic acid octadecyl ester, oleic acid octyl ester, glycerol mono- and trioleate, ethylene glycol dilaurate, sorbitan stearates and oleates as well as esters, especially diesters of aliphatic and / or aromatic di- and / or tricarboxylic acids such as Ci and C- I3 alkyl esters 2 - C ⁇ 2 dicarboxylic acids such as oxalic acid, malonic acid, succinic acid, glutaric acid, adipic acid, pimelic acid, l suberic acid, sebacic acid, malic acid, tartaric acid, citeronic acid, phthalic acid, dodecanoic acid, C9-dicarboxylic acid (trimethyladipic acid) and maleic acid and fumaric acid.
  • esters are: di-n-butyl oxalate, di-n-butylmalonate, di-n-butyl succinate, di-n-butyl glutarate, di-n-butyl adipate, di-n-butyl suberate, di-n-butyl sebacate, dimethyl adipate, Diethyl adipate, di-n-propyl adipate, diisopropyl adipate, diisobutyl adipate, di-tert-butyl adipate, di-isoamyl adipate, di-n-hexyl adipate, di- (2-ethylbutyl) adipate, di- (2-ethylhexyl) adipate, diisodecyl adipate, diisodecyl adipate, diisodecyl adipate, diisodecyl adipate,
  • Fatty acid amides such as stearylamide, coconut fatty acid butylamide, acetic acid oleylamide and ethylene bisstearylamide.
  • Terpenes such as menthol or orange terpene (companySmer Baltician HG, Hamburg).
  • hydrocarbons or hydrocarbon mixtures are paraffin oil or mineral oil.
  • Fats and oils on a native basis are also suitable, in particular vegetable oils and preferably rapeseed oil.
  • the saturated or unsaturated fatty alcohols which according to the invention as Emulsion components can be used by known methods, for. B. the oxo synthesis as oxo alcohols or after the Guerbet reaction available as Guerbet alcohols.
  • Polyoxyalkylene compounds based on alkylene oxides and / or fatty acid glycerides of C 2 -C 8 fatty acids are those which are described, inter alia, in DE-AS-1 270 542 and EP 0 247 509 B1.
  • terpenes When terpenes are used, they are preferably used in a mixture with a saturated or unsaturated fatty alcohol.
  • the proportion of the oil phase in the oil-in-water emulsion is 1-90% by weight, preferably 1-50% by weight and particularly preferably 5-30% by weight, based on the total oil-in-water Emulsion.
  • oil-in-water emulsions to be used according to the invention are used as such or in dilution with water or water- and / or solvent-containing mixtures.
  • the oil-in-water emulsion to be used according to the invention can be added to the waste paper at any location before the first flotation.
  • the addition is preferably already made in the pulper, in which the waste paper is crushed and mixed with water.
  • the pulper is operated in such a way that the pulp slurry is preferably at least 3.5, particularly preferably 4-24, very particularly preferably 6-16 and most preferably 8-12 hours in the presence of the oil-in-water Emulsion swells.
  • 0.5-20.0 g, preferably 3.0-10.0 g and particularly preferably 5.0-8.0 g of the oil-in-water emulsion are preferably used per kilogram of waste paper stock.
  • the oil-in-water emulsions described can be used in any deinking process. However, they are preferably used for neutral inking, which is described, for example, in the weekly paper paper paper 11/12, pages 754-764. This publication is hereby introduced as a reference and is therefore part of the disclosure.
  • the experimental plant had a pulper, a first flotation, a dispersion and a second flotation. All tests were carried out with this system using aged German telephone books of editions 97/98 and 98/99. In all experiments, 0.75% by weight of H 2 O 2 , 0.8% by weight of NaOH, 2.0% by weight of water glass and 0.8% by weight of Olinor were added to the waste paper in the pulper. The percentages by weight relate in each case to the pulp content of the dispersion. Olinor is a product of NOPCO Paper Technology GmbH, Düsseldorf, Federal Republic of Germany.
  • the dirt spots [mm 2 / m 2 ] were determined in each test after the 1st or 2nd flotation using an image analyzer (DOT Counter 2.0). The determination was made according to the Voith-Sulzer method: Determination of dirt spots in the visible range:
  • Rapid-Köthen laboratory sheets with 80 g / m 2 (lutro) area-related mass are produced from the sample to be tested.
  • the number of sheets per measuring point is matched to the respective quality requirement and is for
  • the dirt spot is measured on both sides of the sheets with a measuring area of 100 cm 2 each on the DOT Counter 2.0.
  • the DOT Counter 2.0 is a scanner for determining the size, number and area of particles. Ten size classes are freely programmable, with the smallest resolution being 50 ⁇ m. The average of the individual measurements is given.
  • the whiteness is measured with an Elrepho 2000, filter 0 110 mm.
  • the measurement is carried out in accordance with DIN 53145 / Part 1 + 2, ISO 2469 and ISO 2470.
  • Tallofin ® is a trademark of Stockhausen GmbH & Co. KG., Bäkerpfad 25, D-47805 Krefeld.
  • the test conditions correspond to those of the comparative test. However, in addition to the chemicals mentioned above, the waste paper was also mixed with 1 g Talofin ® DB per kilogram of waste paper.
  • test conditions correspond to those of the comparative test. However, in addition to the chemicals mentioned above, 0.2 g Talofin ® S 1449 per kilogram of waste paper was added to the waste paper in the pulper.
  • the test conditions correspond to those of the comparative test. However, in addition to the chemicals mentioned above, the waste paper was additionally mixed with 0.4 g Talofin ® S 1449 per kilogram of waste paper.
  • Figure 1 shows the first section of the test facility.
  • Figure 2 shows the second section of the test facility.
  • a further 0.4% by weight of Serfax MT 90 is added before the second flotation.
  • the whiteness is measured with an Elrepho 2000, filter 0 110 mm.
  • the measurement is carried out in accordance with DIN 53145 / Part 1 + 2, ISO 2469 and ISO 2470.
  • the brightness is measured according to DIN 5033.
  • inventive examples were carried out either with TALLOFIN ® DB.
  • Tallofin ® is a trademark of Stockhausen GmbH & Co. KG., Bäkerpfad 25, D-47805 Krefeld.

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Toxicology (AREA)
  • Paper (AREA)
  • Colloid Chemistry (AREA)

Abstract

L'invention concerne l'utilisation d'émulsions de type aqueux pour la réduction des points de salissure lors du désencrage de pâte à papier de récupération.
PCT/EP2002/008683 2001-08-08 2002-08-03 Utilisation d'emulsions lors du desencrage Ceased WO2003014468A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP02760308A EP1417375A2 (fr) 2001-08-08 2002-08-03 Utilisation d'emulsions lors du desencrage

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2001138029 DE10138029A1 (de) 2001-08-08 2001-08-08 Verwendung von Emulsionen beim Deinking
DE10138029.1 2001-08-08

Publications (2)

Publication Number Publication Date
WO2003014468A2 true WO2003014468A2 (fr) 2003-02-20
WO2003014468A3 WO2003014468A3 (fr) 2003-10-02

Family

ID=7694211

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/008683 Ceased WO2003014468A2 (fr) 2001-08-08 2002-08-03 Utilisation d'emulsions lors du desencrage

Country Status (3)

Country Link
EP (1) EP1417375A2 (fr)
DE (1) DE10138029A1 (fr)
WO (1) WO2003014468A2 (fr)

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT66681B (de) * 1912-10-03 1914-09-25 Johannes Jacobus Werst Verfahren zum Trennen von Abfall-Faserstoffen von ihren Beimengungen, Farben und Verunreinigungen.
DE2756711C2 (de) * 1977-12-20 1979-02-15 J.M. Voith Gmbh, 7920 Heidenheim Verfahren zum Deinken von bedrucktem Altpapier
DE2941783A1 (de) * 1979-10-16 1981-04-30 Hoechst Ag, 6000 Frankfurt Flotationsmittel zur entfernung von pigmenten aus altpapier
DE3123353C2 (de) * 1981-06-12 1984-09-13 Akzo Gmbh, 5600 Wuppertal Verfahren zum Deinken von bedrucktem Altpapier
GB2121071B (en) * 1982-06-01 1985-10-09 Ferguson And Menzies Limited Liquid soaps
US4618400A (en) * 1984-12-28 1986-10-21 Shell Oil Company Wastepaper deinking process
DE3729446C2 (de) * 1987-09-03 1997-04-10 Akzo Gmbh Mittel zum Deinken von Altpapier und Verfahren zur Herstellung desselben
DE3923393A1 (de) * 1989-07-14 1991-01-17 Henkel Kgaa Verfahren zur altpapieraufbereitung
JP2887796B2 (ja) * 1990-12-28 1999-04-26 三菱石油株式会社 古紙再生用脱墨剤
JPH0694633B2 (ja) * 1991-05-31 1994-11-24 花王株式会社 脱墨剤
US5876559A (en) * 1991-06-25 1999-03-02 International Paper Company Deinking of impact and non-impact printed paper by an agglomeration process
US5258099A (en) * 1992-07-17 1993-11-02 Shell Oil Company Office wastepaper deinking process using fatty alcohols
US5417807A (en) * 1993-05-27 1995-05-23 Kao Corporation Deinking formulation for flexographic inks
WO1995000699A1 (fr) * 1993-06-23 1995-01-05 Bim Kemi Ab Collecteur destine a etre utilise dans le desencrage de papiers de rebut selon le procede de flottation
JP2992210B2 (ja) * 1994-10-20 1999-12-20 花王株式会社 古紙再生用脱墨剤
GB9423454D0 (en) * 1994-11-21 1995-01-11 Allied Colloids Ltd Deinking processes and novel polymers for use in these
DE19525365A1 (de) * 1995-07-12 1997-01-16 Bayer Ag Papierhilfsmittel mit wiederkehrenden Succinyleinheiten
US5658427A (en) * 1995-08-01 1997-08-19 Geo Specialty Chemicals, Inc. Ethoxylated soya glycerides with glycols as deinking collector modifiers
CA2258786A1 (fr) * 1996-06-20 1997-12-24 Peter M. Robinson Procede de desencrage

Also Published As

Publication number Publication date
EP1417375A2 (fr) 2004-05-12
WO2003014468A3 (fr) 2003-10-02
DE10138029A1 (de) 2003-02-27

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