ES277138A1 - A procedure for the treatment of the foam formed in the flotation of old paper or similar (Machine-translation by Google Translate, not legally binding) - Google Patents

A procedure for the treatment of the foam formed in the flotation of old paper or similar (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES277138A1
ES277138A1 ES277138A ES277138A ES277138A1 ES 277138 A1 ES277138 A1 ES 277138A1 ES 277138 A ES277138 A ES 277138A ES 277138 A ES277138 A ES 277138A ES 277138 A1 ES277138 A1 ES 277138A1
Authority
ES
Spain
Prior art keywords
flotation
translation
foam
machine
legally binding
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.)
Expired
Application number
ES277138A
Other languages
Spanish (es)
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.)
JM Voith GmbH
Original Assignee
JM Voith 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 JM Voith GmbH filed Critical JM Voith GmbH
Publication of ES277138A1 publication Critical patent/ES277138A1/en
Expired 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/02—Foam dispersion or prevention
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/001—Flotation agents
    • B03D1/004—Organic compounds
    • B03D1/008—Organic compounds containing oxygen
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • D21B1/30—Defibrating by other means
    • D21B1/32—Defibrating by other means of waste paper
    • D21B1/325—Defibrating by other means of waste paper de-inking devices
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/66—Pulp catching, de-watering, or recovering; Re-use of pulp-water
    • D21F1/70—Pulp catching, de-watering, or recovering; Re-use of pulp-water by flotation
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Physical Water Treatments (AREA)

Abstract

A method for treating the foam formed in the flotation of printed old paper or the like, suspended in water, by the addition of soapy flotation agents to the suspension containing metal ions, foam, which is separated from the surface of the suspension , characterized in that the foam is extinguished and that the pumpable slurry thus formed is then separated, preferably by means of a helical continuous-working centrifuge or an intermittent working centrifuge, the latter intercalating compensating vessels between the flotation cells and the centrifuges, to obtain a slurry of 30 - 40% dry matter content, containing the residual substances, especially the typographical ink and the particles of the printing dyes, and a clean clarifying liquid, which can be used again for the floatation. (Machine-translation by Google Translate, not legally binding)
ES277138A 1961-05-18 1962-05-08 A procedure for the treatment of the foam formed in the flotation of old paper or similar (Machine-translation by Google Translate, not legally binding) Expired ES277138A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT390161A AT251397B (en) 1961-05-18 1961-05-18 Process for processing the foam formed during flotation of printed waste paper or the like suspended in water

Publications (1)

Publication Number Publication Date
ES277138A1 true ES277138A1 (en) 1963-03-01

Family

ID=3556971

Family Applications (1)

Application Number Title Priority Date Filing Date
ES277138A Expired ES277138A1 (en) 1961-05-18 1962-05-08 A procedure for the treatment of the foam formed in the flotation of old paper or similar (Machine-translation by Google Translate, not legally binding)

Country Status (6)

Country Link
AT (1) AT251397B (en)
BE (1) BE617823A (en)
CH (1) CH402586A (en)
DE (1) DE1517227C3 (en)
ES (1) ES277138A1 (en)
NL (1) NL278502A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2610581B1 (en) * 1976-03-13 1977-08-11 Voith Gmbh J M METHOD AND DEVICE FOR THE OBTAINING RELATIVELY PURE FIBER SUSPENSIONS IN THE PROCESSING OF WASTE PAPER
SE431570B (en) * 1978-11-17 1984-02-13 Celleco Ab PROCEDURE FOR RECOVERY OF CELLULOSA FIBERS FROM RECOVERY PAPERS
DE2904326C3 (en) * 1979-02-05 1982-05-13 Naamloze Vennootschap Papierfabriek Gennep, Gennep Process and device for deinking pulp suspensions
DE3005815C2 (en) * 1980-02-16 1982-09-23 J.M. Voith Gmbh, 7920 Heidenheim Device for deinking waste paper
DE4206748A1 (en) * 1992-03-04 1993-09-09 Voith Gmbh J M Used paper recycling
EP0558908B1 (en) * 1992-03-04 1997-04-02 J.M. Voith GmbH Process and treatment of waste paper
DE102004020339A1 (en) * 2004-04-26 2005-11-10 Voith Paper Patent Gmbh Process for flotation of contaminants from an aqueous paper fiber suspension

Also Published As

Publication number Publication date
DE1517227A1 (en) 1969-02-13
BE617823A (en) 1962-09-17
DE1517227C3 (en) 1975-07-17
AT251397B (en) 1966-12-27
NL278502A (en) 1900-01-01
CH402586A (en) 1965-11-15

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