IT939196B - De inchiostrazione di materia pri ma per carta rigenerata e sua depu razione per appesantimento dai con taminanti di peso specifico vicino a quelle delle fibre - Google Patents

De inchiostrazione di materia pri ma per carta rigenerata e sua depu razione per appesantimento dai con taminanti di peso specifico vicino a quelle delle fibre

Info

Publication number
IT939196B
IT939196B IT3102371A IT3102371A IT939196B IT 939196 B IT939196 B IT 939196B IT 3102371 A IT3102371 A IT 3102371A IT 3102371 A IT3102371 A IT 3102371A IT 939196 B IT939196 B IT 939196B
Authority
IT
Italy
Prior art keywords
depu
taminants
inking
ration
weighting
Prior art date
Application number
IT3102371A
Other languages
English (en)
Italian (it)
Original Assignee
Bergstrom Paper Co
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 Bergstrom Paper Co filed Critical Bergstrom Paper Co
Application granted granted Critical
Publication of IT939196B publication Critical patent/IT939196B/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
    • 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
    • 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
IT3102371A 1971-01-22 1971-11-12 De inchiostrazione di materia pri ma per carta rigenerata e sua depu razione per appesantimento dai con taminanti di peso specifico vicino a quelle delle fibre IT939196B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10883471A 1971-01-22 1971-01-22

Publications (1)

Publication Number Publication Date
IT939196B true IT939196B (it) 1973-02-10

Family

ID=22324313

Family Applications (1)

Application Number Title Priority Date Filing Date
IT3102371A IT939196B (it) 1971-01-22 1971-11-12 De inchiostrazione di materia pri ma per carta rigenerata e sua depu razione per appesantimento dai con taminanti di peso specifico vicino a quelle delle fibre

Country Status (6)

Country Link
US (1) US3635788A (enExample)
JP (1) JPS5033162B1 (enExample)
CA (1) CA990220A (enExample)
DE (1) DE2117017C3 (enExample)
GB (1) GB1289926A (enExample)
IT (1) IT939196B (enExample)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5234543A (en) * 1991-10-03 1993-08-10 International Paper Company Deinking method using ink agglomeration
US5500082A (en) * 1993-04-26 1996-03-19 North Carolina State University Deinking of xerographic printed wastepaper using long chain alcohol
US5580446A (en) * 1994-10-20 1996-12-03 International Paper Company Screen, vortex apparatus for cleaning recycled pulp and related process
US6245195B1 (en) * 1996-03-19 2001-06-12 Westvaco Corporation Decontamination of waste papers
US7534322B2 (en) * 2004-09-29 2009-05-19 International Paper Company Method of deinking recycled paper employing centrifigal cleaners
FR2964119A1 (fr) * 2010-08-24 2012-03-02 Luzenac Europ Sas Procede de traitement d'une pate a papier

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1707604A (en) * 1927-09-28 1929-04-02 Richardson Co Deinking paper
US3085927A (en) * 1960-11-16 1963-04-16 Int Paper Co Process for preparation of fibers having differing characteristics
US3486619A (en) * 1968-01-24 1969-12-30 Wikdahl Nils Anders Lennart Method of removing impurities from a fiber suspension

Also Published As

Publication number Publication date
GB1289926A (enExample) 1972-09-20
CA990220A (en) 1976-06-01
US3635788A (en) 1972-01-18
JPS5033162B1 (enExample) 1975-10-28
DE2117017B2 (de) 1974-08-22
DE2117017A1 (de) 1972-08-03
DE2117017C3 (de) 1975-05-22

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