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WO1999022063A1 - Procedure de cuisson de produire de la cellulose avec une b-constante fondee sur un modele mathematique - Google Patents

Procedure de cuisson de produire de la cellulose avec une b-constante fondee sur un modele mathematique Download PDF

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Publication number
WO1999022063A1
WO1999022063A1 PCT/YU1998/000006 YU9800006W WO9922063A1 WO 1999022063 A1 WO1999022063 A1 WO 1999022063A1 YU 9800006 W YU9800006 W YU 9800006W WO 9922063 A1 WO9922063 A1 WO 9922063A1
Authority
WO
WIPO (PCT)
Prior art keywords
cooking
liquor
amount
alkalis
constant
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/YU1998/000006
Other languages
English (en)
Inventor
Djordje Boskovic
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AU63482/98A priority Critical patent/AU6348298A/en
Publication of WO1999022063A1 publication Critical patent/WO1999022063A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
    • 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

Definitions

  • the first three parameters in practice can be realized with desirable accuracy and they are not a problem in performing the process of cooking.
  • the fourth parameter for realizing requires the accurate knowledge of amount of the wood mass as the dampness of the wood mass whose measurement in practice is a problem because it doesn't give asked accuracy.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Paper (AREA)

Abstract

La présente invention porte sur la production de cellulose par cuisson de produits ligneux en fonction du paramètre variable que représente la quantité de réactif chimique contenu dans la liqueur. Le processus de cuisson est effectué avec une B-constante fondée sur le modèle mathématique 1n L = ln Lo - B (1n Co - 1nC) B-constante. Ce modèle mathématique résoud le problème que posent la détermination des quantités exactes d'alcalis actifs à utiliser dans le processus de cuisson, l'introduction d'une quantité équivalente d'alcalis actifs par rapport à la lignine, qui est un paramètre variable pour doser les alcalis actifs pendant le processus. Cette méthode peut s'appliquer soit à un système de cuisson continue soit à un système de cuisson par lots. Lorsqu'elle s'applique à un système de cuisson par lots, on mesure la concentration d'alcalis dans la liqueur (7), puis on la compare avec les valeurs attribuées dans une unité de commande (9), après quoi on injecte la liqueur (10) dans le système en veillant à faire coïncider la valeur mesurée et la valeur attribuée.
PCT/YU1998/000006 1997-10-24 1998-03-16 Procedure de cuisson de produire de la cellulose avec une b-constante fondee sur un modele mathematique Ceased WO1999022063A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU63482/98A AU6348298A (en) 1997-10-24 1998-03-16 Cooking process for producing cellulose with b-constant based on a mathematical model

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
YUP-420/97A RS49842B (sr) 1997-10-24 1997-10-24 Postupak kuvanja celuloze sa b-const. na osnovu matematičkog modela
YUP-420/97 1997-10-24

Publications (1)

Publication Number Publication Date
WO1999022063A1 true WO1999022063A1 (fr) 1999-05-06

Family

ID=25549848

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/YU1998/000006 Ceased WO1999022063A1 (fr) 1997-10-24 1998-03-16 Procedure de cuisson de produire de la cellulose avec une b-constante fondee sur un modele mathematique

Country Status (3)

Country Link
AU (1) AU6348298A (fr)
RS (1) RS49842B (fr)
WO (1) WO1999022063A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1922262A (en) * 1930-10-31 1933-08-15 Jr James H Ross Process of making chemical pulp
US1949669A (en) * 1932-06-20 1934-03-06 Sldney D Wells Apparatus for treating fibrous material

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1922262A (en) * 1930-10-31 1933-08-15 Jr James H Ross Process of making chemical pulp
US1949669A (en) * 1932-06-20 1934-03-06 Sldney D Wells Apparatus for treating fibrous material

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
J. P. CASEY: "Pulp and Paper; Chemistry and Chemical Technology, 3rd edition, vol. I", 1980, JOHN WILEY & SONS, NEW YORK, XP002073649 *

Also Published As

Publication number Publication date
YU42097A (sh) 2000-03-21
AU6348298A (en) 1999-05-17
RS49842B (sr) 2008-08-07

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