NO171997C - Fremgangsmaate og apparat for forbedring av egenskapene til trefibre i mekanisk masse ved sulfonering i flere trinn - Google Patents

Fremgangsmaate og apparat for forbedring av egenskapene til trefibre i mekanisk masse ved sulfonering i flere trinn

Info

Publication number
NO171997C
NO171997C NO855245A NO855245A NO171997C NO 171997 C NO171997 C NO 171997C NO 855245 A NO855245 A NO 855245A NO 855245 A NO855245 A NO 855245A NO 171997 C NO171997 C NO 171997C
Authority
NO
Norway
Prior art keywords
sulphonation
fiber
improving
procedure
multiple steps
Prior art date
Application number
NO855245A
Other languages
English (en)
Other versions
NO855245L (no
NO171997B (no
Inventor
Serge B Beaulieu
Original Assignee
Bear Island Paper Co
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 Bear Island Paper Co filed Critical Bear Island Paper Co
Publication of NO855245L publication Critical patent/NO855245L/no
Publication of NO171997B publication Critical patent/NO171997B/no
Publication of NO171997C publication Critical patent/NO171997C/no

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
    • D21C9/001—Modification of pulp properties
    • D21C9/002—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives
    • D21C9/004—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives inorganic compounds
    • 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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D21C3/26—Multistage processes
    • D21C3/266—Multistage processes the same pulping agent being used in all stages

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Multicomponent Fibers (AREA)
  • Preliminary Treatment Of Fibers (AREA)
NO855245A 1984-12-31 1985-12-23 Fremgangsmaate og apparat for forbedring av egenskapene til trefibre i mekanisk masse ved sulfonering i flere trinn NO171997C (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/687,977 US4708771A (en) 1984-12-31 1984-12-31 Two stage process for sulfonating mechanical pulp fibers

Publications (3)

Publication Number Publication Date
NO855245L NO855245L (no) 1986-07-01
NO171997B NO171997B (no) 1993-02-15
NO171997C true NO171997C (no) 1993-05-26

Family

ID=24762615

Family Applications (1)

Application Number Title Priority Date Filing Date
NO855245A NO171997C (no) 1984-12-31 1985-12-23 Fremgangsmaate og apparat for forbedring av egenskapene til trefibre i mekanisk masse ved sulfonering i flere trinn

Country Status (6)

Country Link
US (1) US4708771A (no)
AU (1) AU588006B2 (no)
CA (1) CA1250702A (no)
FI (1) FI90441C (no)
NO (1) NO171997C (no)
SE (1) SE468818B (no)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5522967A (en) * 1994-05-27 1996-06-04 Kimberly-Clark Corporation Sulfonated cellulose and method of preparation
US5703225A (en) * 1995-12-13 1997-12-30 Kimberly-Clark Worldwide, Inc. Sulfonated cellulose having improved absorbent properties
US6500947B1 (en) * 2001-08-24 2002-12-31 Weyerhaeuser Company Superabsorbent polymer
US20030034136A1 (en) * 2002-07-19 2003-02-20 Neogi Amar N. Superabsorbent cellulosic fiber
US20030035950A1 (en) * 2002-07-19 2003-02-20 Neogi Amar N. Superabsorbent cellulosic fiber
US20030034137A1 (en) * 2002-07-19 2003-02-20 Neogi Amar N. Superabsorbent cellulosic fiber
US20030024663A1 (en) * 2002-07-19 2003-02-06 Neogi Amar N. Superabsorbent cellulosic fiber
US20100175840A1 (en) * 2007-06-12 2010-07-15 Hart Peter W High yield and enhanced performance fiber
US20080308239A1 (en) 2007-06-12 2008-12-18 Hart Peter W Fiber blend having high yield and enhanced pulp performance and method for making same
WO2008153565A1 (en) 2007-06-12 2008-12-18 Meadwestvaco Corporation A fiber blend having high yield and enhanced pulp performance and method for making same
GB201304717D0 (en) 2013-03-15 2013-05-01 Imerys Minerals Ltd Paper composition

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA554831A (en) * 1958-03-25 A. Ohlin Erik Method of producing semi-pulp from wood
US179103A (en) * 1876-06-27 Improvement in the processes for manufacturing paper-pulp from wood
US3711366A (en) * 1966-08-03 1973-01-16 Kokusaku Pulp Ind Co Ltd Digesting lignocellulosic material with sodium hydroxymethylsulfonate
US3607618A (en) * 1967-11-06 1971-09-21 Process Dev Corp Wood-pulping process
CA1075857A (en) * 1976-02-20 1980-04-22 Price Company Limited (The) Chemical pretreatment of wood prior to making refiner groundwood
US4145246A (en) * 1976-07-19 1979-03-20 Crown Zellerbach Corporation Process for making high-strength, high-yield sulfite-modified thermomechanical pulp and a linerboard composition produced therefrom
CA1071805A (en) * 1977-10-25 1980-02-19 Ontario Paper Company Limited (The) Drainage and wet stretch improvement in mechanical pulps
CA1177607A (en) * 1981-06-10 1984-11-13 David M. Mackie Chemical treatment of mechanical wood pulp
US4502918A (en) * 1981-06-10 1985-03-05 Macmillan Bloedel Limited Two-stage chemical treatment of mechanical wood pulp with sodium sulfite
US4486267A (en) * 1983-11-14 1984-12-04 Mead Corporation Chemithermomechanical pulping process employing separate alkali and sulfite treatments

Also Published As

Publication number Publication date
CA1250702A (en) 1989-03-07
FI855119A0 (fi) 1985-12-20
FI90441C (fi) 1994-02-10
US4708771A (en) 1987-11-24
FI90441B (fi) 1993-10-29
NO855245L (no) 1986-07-01
SE8506079L (sv) 1986-07-01
FI855119A (fi) 1986-07-01
AU5027785A (en) 1986-07-10
SE468818B (sv) 1993-03-22
NO171997B (no) 1993-02-15
AU588006B2 (en) 1989-09-07
SE8506079D0 (sv) 1985-12-20

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