GB1003646A - Improved deinking process - Google Patents

Improved deinking process

Info

Publication number
GB1003646A
GB1003646A GB4124062A GB4124062A GB1003646A GB 1003646 A GB1003646 A GB 1003646A GB 4124062 A GB4124062 A GB 4124062A GB 4124062 A GB4124062 A GB 4124062A GB 1003646 A GB1003646 A GB 1003646A
Authority
GB
United Kingdom
Prior art keywords
aqueous solution
paper
flotation
fibres
inking
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
GB4124062A
Inventor
Kenneth Jordan Lissant
William Mather Boaz
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.)
Baker Petrolite LLC
Original Assignee
Petrolite 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 Petrolite Corp filed Critical Petrolite Corp
Priority to GB4124062A priority Critical patent/GB1003646A/en
Priority to DE1962P0030552 priority patent/DE1300823C2/en
Publication of GB1003646A publication Critical patent/GB1003646A/en
Priority to FR915019A priority patent/FR1453204A/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
    • 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

Abstract

A process of de-inking paper products comprises pulping imprinted paper with a caustic free aqueous solution consisting essentially of minor amounts of an oxyalkylated alcohol, oxyalkyloted phenol or oxyalkylated water and thereupon separating the paper from the aqueous solution. The waste paper after being sorted, dusted, macerated and subdivided into small pieces is introduced into the aqueous solution which contains about 001%-2% of the organic reagent. After heating, the excess liquid is separated, and the fibre content washed, if desired. A filter of the Oliver type which comprises a perforated drum through which the liquid is drawn leaving a mat of fibres on the outer surface may be used. The fibres may then be bleached. The ink may be removed from the aqueous solution by filtration, centrifugation, settling and deviating or by flotation. In the latter case the pulp may also be separated by flotation from the aqueous solution at the same time. The de-inking may be carried out at, or above or below, room temperature. Lists of the alcohols, phenols and alkylene oxides which may be used to form the organic reagents are given together with the preferred relative proportions.
GB4124062A 1962-10-31 1962-10-31 Improved deinking process Expired GB1003646A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB4124062A GB1003646A (en) 1962-10-31 1962-10-31 Improved deinking process
DE1962P0030552 DE1300823C2 (en) 1962-10-31 1962-11-12 PROCESS FOR REMOVING PRINTED PAPER PRODUCTS
FR915019A FR1453204A (en) 1962-10-31 1965-11-10 Cellulose product de-inking process

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB4124062A GB1003646A (en) 1962-10-31 1962-10-31 Improved deinking process
DE1962P0030552 DE1300823C2 (en) 1962-10-31 1962-11-12 PROCESS FOR REMOVING PRINTED PAPER PRODUCTS
FR915019A FR1453204A (en) 1962-10-31 1965-11-10 Cellulose product de-inking process

Publications (1)

Publication Number Publication Date
GB1003646A true GB1003646A (en) 1965-09-08

Family

ID=26198350

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4124062A Expired GB1003646A (en) 1962-10-31 1962-10-31 Improved deinking process

Country Status (3)

Country Link
DE (1) DE1300823C2 (en)
FR (1) FR1453204A (en)
GB (1) GB1003646A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4110379A1 (en) * 1991-03-28 1992-10-01 Kleemann Stephan METHOD OF TREATMENT OF ALTPAP
WO2021227249A1 (en) * 2020-05-15 2021-11-18 山鹰国际控股股份公司 Low-grammage writing paper and preparation method therefor

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2243340C2 (en) * 1972-04-26 1983-08-25 Great Eastern Packing & Paper Stock Corp., Richmond, Va. Use of an ethoxylated aliphatic mono-oil or diol for the environmentally friendly bleaching of printed waste paper
US6784146B1 (en) 2000-10-27 2004-08-31 Kemira Chemicals, Inc. Deinking method and composition for wastepaper

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE740664C (en) * 1939-10-22 1944-03-31 Ig Farbenindustrie Ag Process for the production of white paper stock from waste paper

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4110379A1 (en) * 1991-03-28 1992-10-01 Kleemann Stephan METHOD OF TREATMENT OF ALTPAP
DE4110379C2 (en) * 1991-03-28 1994-03-31 Kleemann Stephan Method and means for ink removal from waste paper
WO2021227249A1 (en) * 2020-05-15 2021-11-18 山鹰国际控股股份公司 Low-grammage writing paper and preparation method therefor

Also Published As

Publication number Publication date
DE1300823C2 (en) 1976-08-12
DE1300823B (en) 1969-08-07
FR1453204A (en) 1966-06-03

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