GB191126019A - New or Improved Method of Producing Paper Pulp from Old Paper, and Removing Ink or Colour from the Old Paper to be so Treated. - Google Patents

New or Improved Method of Producing Paper Pulp from Old Paper, and Removing Ink or Colour from the Old Paper to be so Treated.

Info

Publication number
GB191126019A
GB191126019A GB191126019DA GB191126019A GB 191126019 A GB191126019 A GB 191126019A GB 191126019D A GB191126019D A GB 191126019DA GB 191126019 A GB191126019 A GB 191126019A
Authority
GB
United Kingdom
Prior art keywords
paper
pulp
colour
old paper
old
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
Inventor
Carl Kurtz-Haehnle
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
Application granted granted Critical
Publication of GB191126019A publication Critical patent/GB191126019A/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

  • Paper (AREA)

Abstract

26,019. Hahnle, C. Kurtz-. Nov. 21. Pulp, preparation of.-In removing ink or colour from old paper in the production of pulp, the paper is soaked with diluted lye, preferably a solution of sodium peroxide or of a peroxide of an alkaline earth such as magnesium peroxide, then delivered by a sieve c, Fig. 1, through light pressure rolls e, f, g, h, which squeeze out the superfluous liquid, to a rotating screw conveyer m, Fig. 3, the pitch of which decreases towards its upper end. This conveyer carries the material over perforations n through which the squeezed-out liquor drains. The mass is then mixed with water and reduced to fibres by agitation, after which it is carried on a sieve c, Fig. 2, under sprinklers p which wash away the impurities. Any construction of agitating-apparatus may be used, but that described in Specification 24,372/10 is particularly suitable.
GB191126019D 1911-11-21 1911-11-21 New or Improved Method of Producing Paper Pulp from Old Paper, and Removing Ink or Colour from the Old Paper to be so Treated. Expired GB191126019A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191126019T 1911-11-21

Publications (1)

Publication Number Publication Date
GB191126019A true GB191126019A (en) 1912-11-21

Family

ID=32568753

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191126019D Expired GB191126019A (en) 1911-11-21 1911-11-21 New or Improved Method of Producing Paper Pulp from Old Paper, and Removing Ink or Colour from the Old Paper to be so Treated.

Country Status (1)

Country Link
GB (1) GB191126019A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113073491A (en) * 2021-02-10 2021-07-06 徐州利华环保科技有限公司 Multi-circulation type automatic paper pulp impurity screening device and working method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113073491A (en) * 2021-02-10 2021-07-06 徐州利华环保科技有限公司 Multi-circulation type automatic paper pulp impurity screening device and working method thereof

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