GB198854A - A new or improved process for removing ink from printed papers - Google Patents

A new or improved process for removing ink from printed papers

Info

Publication number
GB198854A
GB198854A GB951522A GB951522A GB198854A GB 198854 A GB198854 A GB 198854A GB 951522 A GB951522 A GB 951522A GB 951522 A GB951522 A GB 951522A GB 198854 A GB198854 A GB 198854A
Authority
GB
United Kingdom
Prior art keywords
paper
acid
pulp
oleic
water
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
GB951522A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB198854A publication Critical patent/GB198854A/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
    • 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

  • Physical Water Treatments (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Paper (AREA)

Abstract

In removing ink from printed paper, in the recovery of pulp for paper making, the paper is pulped, and the oily constituent of the ink is removed by treating the pulped paper at 50 DEG to 100 DEG C., for about 1 hour, with an emulsion of oleic or other liquid fatty acid in an aqueous solution of sodium sulphoricinate or other alkaline salt of a sulphated acid such as sulpho-oleic, sulpho-ricinic or sulphoresinic acid. An emulsion of oleic acid and alkaline oleate may be used. Toluene, xylene, or other volatile hydrocarbons or other liquids of lower density than, and not miscible with, water are added together with tepid water, and the mass agitated, when the carbon and pigments are separated from the pulp and absorbed. For separating the liquids, high-speed centrifugal filters are used, the pulp being retained and the water and hydrocarbon driven out. The hydrocarbon is recovered by distillation.
GB951522A 1922-03-15 1922-04-03 A new or improved process for removing ink from printed papers Expired GB198854A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR559897T 1922-03-15

Publications (1)

Publication Number Publication Date
GB198854A true GB198854A (en) 1923-06-14

Family

ID=9873436

Family Applications (1)

Application Number Title Priority Date Filing Date
GB951522A Expired GB198854A (en) 1922-03-15 1922-04-03 A new or improved process for removing ink from printed papers

Country Status (3)

Country Link
DE (1) DE396071C (en)
FR (1) FR559897A (en)
GB (1) GB198854A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL84209C (en) * 1952-02-09 1900-01-01
DE3123353C2 (en) * 1981-06-12 1984-09-13 Akzo Gmbh, 5600 Wuppertal Process for deinking printed waste paper

Also Published As

Publication number Publication date
DE396071C (en) 1924-05-23
FR559897A (en) 1923-09-22

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