SE324285B - - Google Patents

Info

Publication number
SE324285B
SE324285B SE15966/68A SE1596668A SE324285B SE 324285 B SE324285 B SE 324285B SE 15966/68 A SE15966/68 A SE 15966/68A SE 1596668 A SE1596668 A SE 1596668A SE 324285 B SE324285 B SE 324285B
Authority
SE
Sweden
Application number
SE15966/68A
Inventor
T Norin
J Gierer
Original Assignee
T Norin
J Gierer
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 T Norin, J Gierer filed Critical T Norin
Priority to SE15966/68A priority Critical patent/SE324285B/xx
Priority to US875564A priority patent/US3694309A/en
Priority to CA067857A priority patent/CA933307A/en
Priority to FI693390A priority patent/FI45572C/fi
Publication of SE324285B publication Critical patent/SE324285B/xx

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
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
SE15966/68A 1968-11-22 1968-11-22 SE324285B (enrdf_load_stackoverflow)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SE15966/68A SE324285B (enrdf_load_stackoverflow) 1968-11-22 1968-11-22
US875564A US3694309A (en) 1968-11-22 1969-11-10 Lignin-preserving bleaching of cellulose pulp
CA067857A CA933307A (en) 1968-11-22 1969-11-19 Lignin-preserving bleaching of cellulose pulp
FI693390A FI45572C (fi) 1968-11-22 1969-11-21 Menetelmä ligniinin säilyttämiseksi valkaistaessa selluloosamassaa.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE15966/68A SE324285B (enrdf_load_stackoverflow) 1968-11-22 1968-11-22

Publications (1)

Publication Number Publication Date
SE324285B true SE324285B (enrdf_load_stackoverflow) 1970-05-25

Family

ID=20301509

Family Applications (1)

Application Number Title Priority Date Filing Date
SE15966/68A SE324285B (enrdf_load_stackoverflow) 1968-11-22 1968-11-22

Country Status (4)

Country Link
US (1) US3694309A (enrdf_load_stackoverflow)
CA (1) CA933307A (enrdf_load_stackoverflow)
FI (1) FI45572C (enrdf_load_stackoverflow)
SE (1) SE324285B (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985005386A1 (en) * 1984-05-15 1985-12-05 Flinck Karl Evert Method of bleaching fibre pulp for the production of paper and p aperboard

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4029543A (en) * 1971-12-14 1977-06-14 Mo Och Domsjo Mechanically freeing wood fibers in the presence of spent peroxide bleaching liquor
SE413684C (sv) * 1974-09-23 1987-05-18 Mo Och Domsjoe Ab Forfarande for framstellning av cellulosamassa i utbytesomradet 65-95 %
US4229202A (en) * 1976-12-20 1980-10-21 Great Circle Associates Wastewater treatment with ultraviolet disinfection and increased capacity
DE3207157C1 (de) * 1982-02-27 1983-06-09 Degussa Ag, 6000 Frankfurt Verfahren zur Herstellung von halbgebleichten Zellstoffen
US5274139A (en) * 1993-02-26 1993-12-28 University Of Florida Method for effective reaction between oxygen and organic substance utilizing regenerable hydroperioxide oxidant
US6706143B1 (en) 1996-03-19 2004-03-16 International Paper Company Minimizing chlorinated organics in pulp bleaching processes
US7052578B2 (en) * 2000-01-28 2006-05-30 Martin Marietta Magnesia Specialties, Inc. Process employing magnesium hydroxide in peroxide bleaching of mechanical pulp
US20080110584A1 (en) * 2006-11-15 2008-05-15 Caifang Yin Bleaching process with at least one extraction stage
EP3551790B1 (en) * 2016-12-06 2023-04-05 Re:NewCell AB Cellulose fibers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985005386A1 (en) * 1984-05-15 1985-12-05 Flinck Karl Evert Method of bleaching fibre pulp for the production of paper and p aperboard

Also Published As

Publication number Publication date
FI45572C (fi) 1972-07-10
FI45572B (enrdf_load_stackoverflow) 1972-04-04
CA933307A (en) 1973-09-11
US3694309A (en) 1972-09-26

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