BR8501918A - Processo e sistema de extracao continua por alcali e oxigenio para alvejamento e deslenhificacao de polpa de madeira - Google Patents

Processo e sistema de extracao continua por alcali e oxigenio para alvejamento e deslenhificacao de polpa de madeira

Info

Publication number
BR8501918A
BR8501918A BR8501918A BR8501918A BR8501918A BR 8501918 A BR8501918 A BR 8501918A BR 8501918 A BR8501918 A BR 8501918A BR 8501918 A BR8501918 A BR 8501918A BR 8501918 A BR8501918 A BR 8501918A
Authority
BR
Brazil
Prior art keywords
delenification
targeting
alkali
oxygen
wood pulp
Prior art date
Application number
BR8501918A
Other languages
English (en)
Inventor
L Allan Carlsmith
Original Assignee
Ingersoll Rand 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 Ingersoll Rand Co filed Critical Ingersoll Rand Co
Publication of BR8501918A publication Critical patent/BR8501918A/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
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
BR8501918A 1984-07-27 1985-04-23 Processo e sistema de extracao continua por alcali e oxigenio para alvejamento e deslenhificacao de polpa de madeira BR8501918A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US63513584A 1984-07-27 1984-07-27

Publications (1)

Publication Number Publication Date
BR8501918A true BR8501918A (pt) 1986-05-06

Family

ID=24546587

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8501918A BR8501918A (pt) 1984-07-27 1985-04-23 Processo e sistema de extracao continua por alcali e oxigenio para alvejamento e deslenhificacao de polpa de madeira

Country Status (6)

Country Link
JP (1) JPS6141385A (pt)
BR (1) BR8501918A (pt)
CA (1) CA1249904A (pt)
FI (1) FI852910L (pt)
NO (1) NO851038L (pt)
SE (1) SE8501032L (pt)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE0300276L (sv) * 2003-01-31 2003-12-09 Kvaerner Pulping Tech Förfarande för blekning av cellulosamassa samt bleklinje härför

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI48486C (fi) * 1973-01-24 1977-07-29 Ahlstroem Oy Menetelmä kuitumassan valkaisemiseksi.
JPS5126302A (en) * 1974-08-22 1976-03-04 Hitachi Shipbuilding Eng Co Sansoganjugasunyoru seruroosubutsushitsuno shorihoho
JPS5789690A (en) * 1980-11-21 1982-06-04 Toyo Pulp Co Ltd Alkali oxygen delignification of fiber substance
JPS5940398A (ja) * 1982-08-30 1984-03-06 Toshiba Corp メモリ制御方式

Also Published As

Publication number Publication date
FI852910A0 (fi) 1985-07-26
SE8501032L (sv) 1986-01-28
CA1249904A (en) 1989-02-14
JPS6141385A (ja) 1986-02-27
SE8501032D0 (sv) 1985-03-04
NO851038L (no) 1986-01-28
FI852910L (fi) 1986-01-28

Similar Documents

Publication Publication Date Title
BR8506868A (pt) Processo e aparelho para monitorar reacoes redox
BR8503851A (pt) Processo e aparelhos para producao de blocos para construcao civil e blocos para construcao civil
PT80578B (pt) Processo de preparacao de acidos 7-amino-1-cicloporpil-6,8-di-hidro-4-oxo-3-quinolinocarboxilicos e de agentes antibacterianos que os contem
BR9005603A (pt) Processo para producao de acido acrilico e catalisador para producao do mesmo
BR8602673A (pt) Processo para recuperacao de quitosano de biomassa contendo quitina
BR8802819A (pt) Processo para producao de negro-de-fumo
BR8604182A (pt) Processo para producao de eteres
BR8806690A (pt) Processo para desenvolver programas e sistema de processamento distribuido
BR8108536A (pt) Processo para recuperacao e purificacao de acrilonitrila ou metacrilonitrila
BR8503078A (pt) Processo para estabilizar uma solucao de uma isotiazolona e solucao estabilizada contendo isotiazolona
PT82917B (pt) Processo para a preparacao de enzimas modificados
BR8607001A (pt) Processo e composicao de alvejamento
BR8505604A (pt) Processo para controlar o processo de clareamento de celulose por oxigenio
BR8306645A (pt) Processo para preparar produtos de adicao de monoeter e polieter poliol contendo acido caboxilico;produto de adicao de monoeter ou polieter poliol contendo acido carboxilico
BR8505671A (pt) Processo para preparar uma composicao contendo nitrogenio e fosforo e sistema aquoso
BR8600058A (pt) Processo para conversao de octametilcilcotetras-siloxanas em decametilciclopentas-siloxanas
FR2589683B1 (fr) Procede de preparation de fibres alimentaires et fibres obtenues
BR8402101A (pt) Processo de purificacao e de concentracao simultaneas da enzima dextrana-sacarase
BR8505500A (pt) Processo para hidrolise enzimatica
FR2582697B1 (fr) Produits en fibres minerales sous forme de panneaux ou de rouleaux
BR8506371A (pt) Processo de producao de polissacarideos por fermentacao e emulsoes de oleo-em-agua
BR8501918A (pt) Processo e sistema de extracao continua por alcali e oxigenio para alvejamento e deslenhificacao de polpa de madeira
GB2178026B (en) Production of glass fibre products
BR8605449A (pt) Processo de separacao e de purificacao do acido salicilico
BR8507057A (pt) Sistema de acionamento sincrono e processo para fazer o mesmo