BR7707975A - Aperfeicoamento em processo para tratamento de uma polpa lignocelulosica ou celulosica - Google Patents

Aperfeicoamento em processo para tratamento de uma polpa lignocelulosica ou celulosica

Info

Publication number
BR7707975A
BR7707975A BR7707975A BR7707975A BR7707975A BR 7707975 A BR7707975 A BR 7707975A BR 7707975 A BR7707975 A BR 7707975A BR 7707975 A BR7707975 A BR 7707975A BR 7707975 A BR7707975 A BR 7707975A
Authority
BR
Brazil
Prior art keywords
lignocellulosic
treating
processing
cellulosic pulp
cellulosic
Prior art date
Application number
BR7707975A
Other languages
English (en)
Inventor
A Kerr
R Kibblewhite
Original Assignee
New Zealand Dev Finance
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
Priority claimed from NZ18278276A external-priority patent/NZ182782A/xx
Application filed by New Zealand Dev Finance filed Critical New Zealand Dev Finance
Publication of BR7707975A publication Critical patent/BR7707975A/pt

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

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)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
BR7707975A 1976-12-01 1977-11-30 Aperfeicoamento em processo para tratamento de uma polpa lignocelulosica ou celulosica BR7707975A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NZ18278276A NZ182782A (en) 1976-12-01 1976-12-01 Treatment of cellulosic or ligno cellulosic pulp with gaseous ammonia
NZ18431277 1977-06-07

Publications (1)

Publication Number Publication Date
BR7707975A true BR7707975A (pt) 1978-09-05

Family

ID=26649651

Family Applications (1)

Application Number Title Priority Date Filing Date
BR7707975A BR7707975A (pt) 1976-12-01 1977-11-30 Aperfeicoamento em processo para tratamento de uma polpa lignocelulosica ou celulosica

Country Status (8)

Country Link
US (1) US4227964A (pt)
JP (1) JPS5394603A (pt)
AU (1) AU3102077A (pt)
BR (1) BR7707975A (pt)
CA (1) CA1102969A (pt)
FI (1) FI773597A (pt)
NO (1) NO774099L (pt)
SE (1) SE7713518L (pt)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5037663A (en) * 1981-10-14 1991-08-06 Colorado State University Research Foundation Process for increasing the reactivity of cellulose-containing materials
NZ204019A (en) * 1982-05-11 1986-09-10 Pulp Paper Res Inst Heat treatment of pulp fibres
US5102501A (en) * 1982-08-18 1992-04-07 James River-Norwalk, Inc. Multiple layer fibrous web products of enhanced bulk and method of manufacturing same
US4597930A (en) * 1983-07-11 1986-07-01 Szal John R Method of manufacture of a felted fibrous product from a nonaqueous medium
US4913773A (en) * 1987-01-14 1990-04-03 James River-Norwalk, Inc. Method of manufacture of paperboard
US4869782A (en) * 1988-02-12 1989-09-26 James River-Norwalk, Inc. Method of producing high bulking anfractuous cellulosic fiber using anhydrous liquid ammonia
US5906894A (en) * 1994-03-25 1999-05-25 Weyerhaeuser Company Multi-ply cellulosic products using high-bulk cellulosic fibers
US5843278A (en) * 1997-02-14 1998-12-01 Potlatch Corporation Method of producing soft paper products
US20030150065A1 (en) * 1998-12-30 2003-08-14 Sheng-Hsin Hu Liquid ammonia explosion treatment of wood fibers
US7815876B2 (en) 2006-11-03 2010-10-19 Olson David A Reactor pump for catalyzed hydrolytic splitting of cellulose
US7815741B2 (en) 2006-11-03 2010-10-19 Olson David A Reactor pump for catalyzed hydrolytic splitting of cellulose

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE602890C (de) * 1928-06-06 1934-09-18 E J Du Pont De Nemours & Co Verfahren zur Herstellung von besonders saugfaehigem papieraehnlichem Stoff aus Cellulose
CA752864A (en) * 1965-10-12 1967-02-14 Pulp And Paper Research Institute Of Canada Extraction of fibrous cellulosic material with ammonia following treatment with chlorine, chlorine dioxide or other reagents
CA849982A (en) * 1967-12-15 1970-08-25 M. Clayton David Process for producing wood pulp
US3630828A (en) * 1968-05-13 1971-12-28 Pulp Paper Res Inst Bleaching of a low-density, substantially uncompacted, porous fluffed cellulosic pulp
CA864409A (en) * 1969-04-14 1971-02-23 H. Andrews Douglas Pulp bleaching process
US3652305A (en) * 1970-02-24 1972-03-28 Thomas E Cook Moldable hydrated magnesium oxide and the formation of molded articles therefrom
SE360128C (sv) * 1970-08-25 1983-08-02 Mo Och Domsjoe Ab Sett att bleka cellulosamassa med en syreinnehallande gas i nervaro av alkali
US3707436A (en) * 1971-03-22 1972-12-26 Kimberly Clark Co Exploding of ammonia impregnated wood chips
US3740311A (en) * 1971-05-24 1973-06-19 Pulp Paper Res Inst Delignification of cellulosic pulp with ammonia gas followed by heating in the presence of oxygen
GB1381728A (en) 1971-10-01 1975-01-29 Thillaimuthu J Production of cellulose pulp for paper and paper board
US3832276A (en) * 1973-03-07 1974-08-27 Int Paper Co Delignification and bleaching of a cellulose pulp slurry with oxygen
US3951734A (en) * 1974-10-11 1976-04-20 Weyerhaeuser Company Ammonia-ketone pulping process
US4002526A (en) * 1975-10-10 1977-01-11 International Paper Company Oxygen-alkali delignification of low consistency wood pulp

Also Published As

Publication number Publication date
NO774099L (no) 1978-06-02
FI773597A (fi) 1978-06-02
CA1102969A (en) 1981-06-16
SE7713518L (sv) 1978-06-02
US4227964A (en) 1980-10-14
JPS5394603A (en) 1978-08-18
AU3102077A (en) 1979-06-07

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