IT1014516B - Processo per deinchiostrare e ridurre in pasta sminuzzato di legno - Google Patents

Processo per deinchiostrare e ridurre in pasta sminuzzato di legno

Info

Publication number
IT1014516B
IT1014516B IT3081973A IT3081973A IT1014516B IT 1014516 B IT1014516 B IT 1014516B IT 3081973 A IT3081973 A IT 3081973A IT 3081973 A IT3081973 A IT 3081973A IT 1014516 B IT1014516 B IT 1014516B
Authority
IT
Italy
Prior art keywords
deinking
paste
reducing
chopped wood
chopped
Prior art date
Application number
IT3081973A
Other languages
English (en)
Italian (it)
Original Assignee
Gaf Corp
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 Gaf Corp filed Critical Gaf Corp
Application granted granted Critical
Publication of IT1014516B publication Critical patent/IT1014516B/it

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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D21C3/222—Use of compounds accelerating the pulping processes
    • 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

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Toxicology (AREA)
  • Paper (AREA)
IT3081973A 1972-11-01 1973-10-31 Processo per deinchiostrare e ridurre in pasta sminuzzato di legno IT1014516B (it)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05302657 US3846227A (en) 1972-11-01 1972-11-01 Deinking of waste paper with an aqueous solution containing an n-alkyllactam solvent
US38124073A 1973-07-20 1973-07-20

Publications (1)

Publication Number Publication Date
IT1014516B true IT1014516B (it) 1977-04-30

Family

ID=26973043

Family Applications (1)

Application Number Title Priority Date Filing Date
IT3081973A IT1014516B (it) 1972-11-01 1973-10-31 Processo per deinchiostrare e ridurre in pasta sminuzzato di legno

Country Status (6)

Country Link
US (1) US3846227A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS49108303A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE2353771A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (2) FR2204737A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (2) GB1417353A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
IT (1) IT1014516B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3963560A (en) * 1972-11-01 1976-06-15 Gaf Corporation Composition for deinking waste paper
CA1249903A (en) * 1984-05-10 1989-02-14 Christopher C. Mollett Composition and method of deinking of recycled cellulosic material
ATE138648T1 (de) * 1986-06-27 1996-06-15 Isp Investments Inc Oberflächenaktive laktame
DE3811025A1 (de) * 1988-03-31 1989-10-12 Gruenau Gmbh Chem Fab Verfahren zum de-inken von bedrucktem altpapier
US5286346A (en) * 1988-11-23 1994-02-15 Henkel Kommanditgesellschaft Auf Aktien Deinking of wastepaper with quaternized hydroxyethyl cellulose
EP0483571B1 (de) * 1990-10-30 1995-02-01 BK LADENBURG GmbH, Gesellschaft für chemische Erzeugnisse Verfahren zur Wiedergewinnung von Fasern durch Flotationsdeinken aus Altpapier
DE4110379C2 (de) * 1991-03-28 1994-03-31 Kleemann Stephan Verfahren und Mittel zur Druckfarbenentfernung aus Altpapier
US5234543A (en) * 1991-10-03 1993-08-10 International Paper Company Deinking method using ink agglomeration
US5342483A (en) * 1992-12-10 1994-08-30 Magnetic Separation Engineering, Inc. Process for deinking paper using water-soluble alcohols
US5520780A (en) * 1993-11-30 1996-05-28 Dxresources Corporation Method and apparatus for de-inking newsprint using counterflow extractor
ES2241408B1 (es) * 2002-11-13 2006-12-16 Universitat Politecnica De Catalunya Nuevo material a partir de residuos de papel impreso de alta calidad yy su metodo de obtencion.

Also Published As

Publication number Publication date
GB1417354A (en) 1975-12-10
FR2248368A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1975-05-16
GB1417353A (en) 1975-12-10
JPS49108303A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1974-10-15
FR2248368B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1977-03-25
FR2204737A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1974-05-24
DE2353771A1 (de) 1974-05-09
US3846227A (en) 1974-11-05

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