SE8007949L - METHODS FOR DEVICATION OF SECONDARY FIBERS - Google Patents

METHODS FOR DEVICATION OF SECONDARY FIBERS

Info

Publication number
SE8007949L
SE8007949L SE8007949A SE8007949A SE8007949L SE 8007949 L SE8007949 L SE 8007949L SE 8007949 A SE8007949 A SE 8007949A SE 8007949 A SE8007949 A SE 8007949A SE 8007949 L SE8007949 L SE 8007949L
Authority
SE
Sweden
Prior art keywords
ether group
deinking
chain
fiber
replaced
Prior art date
Application number
SE8007949A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE456250B (en
Inventor
J E Maloney
R E Freis
T R Oakes
Original Assignee
Economics Lab
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 Economics Lab filed Critical Economics Lab
Publication of SE8007949L publication Critical patent/SE8007949L/en
Publication of SE456250B publication Critical patent/SE456250B/en

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

Washing methods of deinking secondary cellulose fiber (i.e., removing unwanted non-cellulose materials therefrom) involve deinking the fiber with surface-active agent comprising: an oxyethylene glycol chain, wherein one terminal hydroxyl of the chain has been replaced with an ether group selected from an aliphatic ether group and an alkylaromatic ether group, and the other terminal hydroxyl of the chain has been replaced with an ether group selected from a polyoxypropylene group and a benzyl ether group. The present washing method of deinking reduces or eliminates objectionable foam, potentially provides energy savings yet maintains or improves the quality of the deinked fiber.
SE8007949A 1979-11-13 1980-11-12 WASHING METHOD FOR PREPARING FROM POLLUTANTS FREE SE456250B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US9374479A 1979-11-13 1979-11-13

Publications (2)

Publication Number Publication Date
SE8007949L true SE8007949L (en) 1981-05-14
SE456250B SE456250B (en) 1988-09-19

Family

ID=22240461

Family Applications (4)

Application Number Title Priority Date Filing Date
SE8007949A SE456250B (en) 1979-11-13 1980-11-12 WASHING METHOD FOR PREPARING FROM POLLUTANTS FREE
SE8601383A SE456251B (en) 1979-11-13 1986-03-25 WASHING METHOD FOR PREPARING DEVELOPED, SECOND FIBER THROUGH AN INTERMEDIATE SUSPENSION OF SECOND FIBER, IN WHICH PARTICLES OF PRINTED WAVES ARE DISTRIBUTED
SE8601384A SE456252B (en) 1979-11-13 1986-03-25 METHOD TO REDUCE THE QUANTITY OF FOAM CREATED IN A PROCESS OF WASHING TYPE FOR DEVICATION OF SECOND FIBER
SE8601385A SE456253B (en) 1979-11-13 1986-03-25 WASHING METHOD FOR MANUFACTURE OF DEVICED SECOND FIBERS WITH A POINT OF SECOND FIBERS CONTAINING PRINT

Family Applications After (3)

Application Number Title Priority Date Filing Date
SE8601383A SE456251B (en) 1979-11-13 1986-03-25 WASHING METHOD FOR PREPARING DEVELOPED, SECOND FIBER THROUGH AN INTERMEDIATE SUSPENSION OF SECOND FIBER, IN WHICH PARTICLES OF PRINTED WAVES ARE DISTRIBUTED
SE8601384A SE456252B (en) 1979-11-13 1986-03-25 METHOD TO REDUCE THE QUANTITY OF FOAM CREATED IN A PROCESS OF WASHING TYPE FOR DEVICATION OF SECOND FIBER
SE8601385A SE456253B (en) 1979-11-13 1986-03-25 WASHING METHOD FOR MANUFACTURE OF DEVICED SECOND FIBERS WITH A POINT OF SECOND FIBERS CONTAINING PRINT

Country Status (7)

Country Link
BR (1) BR8007390A (en)
CA (1) CA1151812A (en)
FI (1) FI73015C (en)
GB (1) GB2063326B (en)
IT (1) IT1134201B (en)
NO (1) NO160385C (en)
SE (4) SE456250B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4820379A (en) * 1986-10-16 1989-04-11 Ppg Industries, Inc. Method for deinking wastepaper with a halogenated polyethylene oxide and a polymeric material
EP0464059B1 (en) * 1989-03-15 1995-02-22 Woodfree Limited Method of de-inking waste paper materials
US5417808A (en) * 1991-08-30 1995-05-23 Lion Corporation Deinking composition for flotation and deinking method
DE69303264T2 (en) * 1993-02-10 1996-10-31 Lion Corp Decolorization composition for flotation and decolorization process
SK113096A3 (en) * 1994-03-08 1997-02-05 Buckman Labor Inc Agent for deinking printing ink and a method of deinking
JP4233867B2 (en) * 2000-08-07 2009-03-04 花王株式会社 Flotation deinking method
WO2015006362A1 (en) * 2013-07-11 2015-01-15 Invista Technologies S.A.R.L. Processes for removal of contaminants from cellulosic material

Also Published As

Publication number Publication date
NO160385C (en) 1989-04-12
SE8601385L (en) 1986-03-25
IT8025845A0 (en) 1980-11-07
FI73015C (en) 1987-08-10
GB2063326A (en) 1981-06-03
SE8601384D0 (en) 1986-03-25
GB2063326B (en) 1984-10-03
SE456252B (en) 1988-09-19
SE456253B (en) 1988-09-19
SE456250B (en) 1988-09-19
FI803553L (en) 1981-05-14
SE8601383D0 (en) 1986-03-25
NO803412L (en) 1981-05-14
SE8601384L (en) 1986-03-25
NO160385B (en) 1989-01-02
SE456251B (en) 1988-09-19
IT1134201B (en) 1986-08-13
SE8601383L (en) 1986-03-25
SE8601385D0 (en) 1986-03-25
CA1151812A (en) 1983-08-16
BR8007390A (en) 1981-05-26
FI73015B (en) 1987-04-30

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