BR7307566D0 - Processo para extracao alcalina de um tipo de polpa pre-tratada para fabricacao de papel - Google Patents

Processo para extracao alcalina de um tipo de polpa pre-tratada para fabricacao de papel

Info

Publication number
BR7307566D0
BR7307566D0 BR7566/73A BR756673A BR7307566D0 BR 7307566 D0 BR7307566 D0 BR 7307566D0 BR 7566/73 A BR7566/73 A BR 7566/73A BR 756673 A BR756673 A BR 756673A BR 7307566 D0 BR7307566 D0 BR 7307566D0
Authority
BR
Brazil
Prior art keywords
type
treated pulp
alkaline extraction
paper manufacture
paper
Prior art date
Application number
BR7566/73A
Other languages
English (en)
Portuguese (pt)
Inventor
N Liebergott
Original Assignee
Pulp E Paper Research Inst Of
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 Pulp E Paper Research Inst Of filed Critical Pulp E Paper Research Inst Of
Publication of BR7307566D0 publication Critical patent/BR7307566D0/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
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/1026—Other features in bleaching processes

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Medicines Containing Plant Substances (AREA)
BR7566/73A 1972-09-29 1973-09-28 Processo para extracao alcalina de um tipo de polpa pre-tratada para fabricacao de papel BR7307566D0 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA152,905A CA973661A (en) 1972-09-29 1972-09-29 Press alkaline extraction of cellulosic pulp

Publications (1)

Publication Number Publication Date
BR7307566D0 true BR7307566D0 (pt) 1974-09-05

Family

ID=4094565

Family Applications (1)

Application Number Title Priority Date Filing Date
BR7566/73A BR7307566D0 (pt) 1972-09-29 1973-09-28 Processo para extracao alcalina de um tipo de polpa pre-tratada para fabricacao de papel

Country Status (9)

Country Link
US (1) US3874992A (OSRAM)
JP (1) JPS5214326B2 (OSRAM)
AR (1) AR201116A1 (OSRAM)
BR (1) BR7307566D0 (OSRAM)
CA (1) CA973661A (OSRAM)
FI (1) FI63793C (OSRAM)
FR (1) FR2201369B1 (OSRAM)
NO (1) NO141617C (OSRAM)
SE (1) SE405488B (OSRAM)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE415581B (sv) * 1977-04-18 1980-10-13 Mo Och Domsjoe Ab Forfarande for perocidblekning av hogutbytesmassa
US4238281A (en) * 1979-04-30 1980-12-09 Canadian International Paper Company Simplified bleaching process
US4806203A (en) * 1985-02-14 1989-02-21 Elton Edward F Method for alkaline delignification of lignocellulosic fibrous material at a consistency which is raised during reaction
US5085734A (en) * 1989-02-15 1992-02-04 Union Camp Patent Holding, Inc. Methods of high consistency oxygen delignification using a low consistency alkali pretreatment
US5409570A (en) * 1989-02-15 1995-04-25 Union Camp Patent Holding, Inc. Process for ozone bleaching of oxygen delignified pulp while conveying the pulp through a reaction zone
US5525195A (en) * 1989-02-15 1996-06-11 Union Camp Patent Holding, Inc. Process for high consistency delignification using a low consistency alkali pretreatment
US5211811A (en) * 1989-02-15 1993-05-18 Union Camp Patent Holding, Inc. Process for high consistency oxygen delignification of alkaline treated pulp followed by ozone delignification
US5173153A (en) * 1991-01-03 1992-12-22 Union Camp Patent Holding, Inc. Process for enhanced oxygen delignification using high consistency and a split alkali addition
US5188708A (en) * 1989-02-15 1993-02-23 Union Camp Patent Holding, Inc. Process for high consistency oxygen delignification followed by ozone relignification
US5217574A (en) * 1989-02-15 1993-06-08 Union Camp Patent Holdings Inc. Process for oxygen delignifying high consistency pulp by removing and recycling pressate from alkaline pulp
US5011572A (en) * 1989-05-19 1991-04-30 Fmc Corporation Two stage process for the oxygen delignification of lignocellulosic fibers with peroxide reinforcement in the first stage
FI85293C (sv) * 1990-05-04 1992-03-25 Poeyry Jaakko & Co Oy Förfarande för rening och återföring av cellulosafabrikers blekeriavva tten
US5164043A (en) * 1990-05-17 1992-11-17 Union Camp Patent Holding, Inc. Environmentally improved process for bleaching lignocellulosic materials with ozone
US5441603A (en) * 1990-05-17 1995-08-15 Union Camp Patent Holding, Inc. Method for chelation of pulp prior to ozone delignification
US5164044A (en) * 1990-05-17 1992-11-17 Union Camp Patent Holding, Inc. Environmentally improved process for bleaching lignocellulosic materials with ozone
US5554259A (en) * 1993-10-01 1996-09-10 Union Camp Patent Holdings, Inc. Reduction of salt scale precipitation by control of process stream Ph and salt concentration
US5728264A (en) * 1995-10-25 1998-03-17 Union Camp Patent Holding, Inc. Avoidance of salt scaling by acidic pulp washing process
EP1226179A4 (en) * 1999-07-02 2002-10-29 Mendell Co Inc Edward Treatment of pulp to produce microcrystalline cellulose

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2882965A (en) * 1955-02-23 1959-04-21 Columbia Cellulose Company Ltd High viscosity, high percentage alpha cellulose from sulfite pulp
SE314286B (OSRAM) * 1964-08-07 1969-09-01 Pulp Paper Res Inst
CA834629A (en) * 1966-09-30 1970-02-17 Amiel W. Brinkley, Jr. Rapid high consistency bleaching of pulp
US3632469A (en) * 1969-06-05 1972-01-04 Ethyl Corp Process for the manufacture of dissolving grade pulp

Also Published As

Publication number Publication date
CA973661A (en) 1975-09-02
DE2347398A1 (de) 1974-04-04
FR2201369B1 (OSRAM) 1977-03-11
NO141617B (no) 1980-01-02
AR201116A1 (es) 1975-02-14
FI63793B (fi) 1983-04-29
FR2201369A1 (OSRAM) 1974-04-26
DE2347398B2 (de) 1977-01-13
JPS5214326B2 (OSRAM) 1977-04-21
FI63793C (fi) 1983-08-10
NO141617C (no) 1980-04-09
SE405488B (sv) 1978-12-11
US3874992A (en) 1975-04-01
JPS4971202A (OSRAM) 1974-07-10

Similar Documents

Publication Publication Date Title
BR7307566D0 (pt) Processo para extracao alcalina de um tipo de polpa pre-tratada para fabricacao de papel
BR7203578D0 (pt) Polpa de polimero sintetico para fabricacao de papel
BR7409528A (pt) Processo para a producao de eteres celulosicos que podem absorver agua embora nao sejam hidrosoluveis
AR203473Q (es) Equipo desintegrador para papel viejo
BR7301686D0 (pt) Processo para a producao de um tetrapolimero
BR7104229D0 (pt) Um processo para produzir um papel sintetico
BR7409548A (pt) Processo para o encolamento da superficie de papel
BR7403522D0 (pt) Processo para a producao de polpas de gramas para fabricacao de papel
BR7402234D0 (pt) Processo e aparelho para recuperacao de fibras de polpa para fabricacao de papel
BR7304265D0 (pt) Composicao de fortalecimento a umido para papel e processo para fabricacao de papel resistente
BR7206971D0 (pt) Processo para a obtencao de moldes de impressao
AR203105A1 (es) Un aparato para clasificar una pasta de fibras para elaborar papel
BR7208466D0 (pt) Processo para a producao de polpa
BR7105179D0 (pt) Maquina e processo para a producao de papel de folhas multiplas
AR195370A1 (es) Un metodo para producir papel de seguridad
BR7303448D0 (pt) Processo para producao de um tecido do tipo nao tecido
BR7107414D0 (pt) Processo de purgacao de digestor de polpa de papel
BR7203416D0 (pt) Processo para producao de polpa de celulose a polpa resultante e o papel fabricado da polpa
BR7016739D0 (pt) Processo para a obtencao de carbonato de bario
BR7207087D0 (pt) Processo para produzir uma polpa de poliolefina e polpa de poliolefina sintetica para fazer papel
BR7018292D0 (pt) Processo aperfeicoado para a fabricacao de papel bem como maquina para a execucao do mesmo
BR6909608D0 (pt) Seccao de prensagem aperfeicoada para maquina de fabricar papel
BR6914414D0 (pt) Processo para a producao de papel opacificado
BR7201186D0 (pt) Aperfeicoamentos em maquina para a fabricacao de papel
BR7201953D0 (pt) Processo de transferencia de desenho de papel para tecido