AR017356A1 - CHEMICAL PAPER PASTE MANUFACTURE - Google Patents

CHEMICAL PAPER PASTE MANUFACTURE

Info

Publication number
AR017356A1
AR017356A1 ARP980105174A ARP980105174A AR017356A1 AR 017356 A1 AR017356 A1 AR 017356A1 AR P980105174 A ARP980105174 A AR P980105174A AR P980105174 A ARP980105174 A AR P980105174A AR 017356 A1 AR017356 A1 AR 017356A1
Authority
AR
Argentina
Prior art keywords
treated
chips
zone
current
washing
Prior art date
Application number
ARP980105174A
Other languages
Spanish (es)
Original Assignee
Hinklin Ronald Jay
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 Hinklin Ronald Jay filed Critical Hinklin Ronald Jay
Publication of AR017356A1 publication Critical patent/AR017356A1/en

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
    • D21C9/02—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents
    • 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
    • D21C3/24—Continuous 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
    • 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
    • D21C9/1042—Use of chelating agents

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)

Abstract

Fabricacion de pasta papelera química que comprende un procedimiento contínuo de coccion segun el cual se tratan, en una zona de impregnacion (a), virutasde madera por medio de una primera parte de un líquido alcalino, se tratan las virutas así obtenidas en una zona de coccion (b) que comprende, en cualquierorden, al menos un espacio co-corriente en el que el líquido y las virutas se desplazan de manera co-corriente y al menos un espacio contra-corriente en el quelas virutas y el líquido se desplazan de manera en contra-corriente, de forma que se transforme al menos una parte de las virutas en pasta papelera, se tratala pasta papelera así obtenida en una zona de lavado (c), se transfiere al medio obtenido en la zona de lavado a un depositode expansion (d), se somete elmedio que sale de la zona de expansion a uno o varios tratamientos de lavado (e), y se introduce al menos un agente quelante en la zona de lavado (c) y/o en eldeposito de expansion (d) y/o durante uno o varios tratamientos de lavado (e).Manufacture of chemical paper pulp comprising a continuous cooking procedure according to which, in an impregnation zone (a), wood chips are treated by means of a first part of an alkaline liquid, the chips thus obtained are treated in an area of cooking (b) comprising, in any order, at least one co-current space in which the liquid and chips move co-current and at least one counter-current space in which the chips and liquid move from in a counter-current manner, so that at least a part of the shavings in paper pulp is transformed, the pulp thus treated in a washing zone (c) is treated, it is transferred to the medium obtained in the washing zone to a deposit expansion (d), the medium leaving the expansion zone is subjected to one or more washing treatments (e), and at least one chelating agent is introduced into the washing zone (c) and / or the expansion tank ( d) and / or during one or more trat washings (e).

ARP980105174A 1997-10-17 1998-10-16 CHEMICAL PAPER PASTE MANUFACTURE AR017356A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE9700830A BE1011503A3 (en) 1997-10-17 1997-10-17 Manufacturing pulp chemicals.

Publications (1)

Publication Number Publication Date
AR017356A1 true AR017356A1 (en) 2001-09-05

Family

ID=3890783

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP980105174A AR017356A1 (en) 1997-10-17 1998-10-16 CHEMICAL PAPER PASTE MANUFACTURE

Country Status (6)

Country Link
AR (1) AR017356A1 (en)
AU (1) AU1030999A (en)
BE (1) BE1011503A3 (en)
ID (1) ID21108A (en)
WO (1) WO1999020830A1 (en)
ZA (1) ZA989247B (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3448003A (en) * 1966-01-03 1969-06-03 Dow Chemical Co On-stream cleaning of wood chip digesters using chelating agents
CA2037717C (en) * 1990-09-17 1996-03-05 Bertil Stromberg Extended kraft cooking with white liquor added to wash circulation
WO1994010375A1 (en) * 1992-10-26 1994-05-11 Kamyr, Inc. Displacement chelate treatment of pulp

Also Published As

Publication number Publication date
AU1030999A (en) 1999-05-10
BE1011503A3 (en) 1999-10-05
ID21108A (en) 1999-04-22
ZA989247B (en) 2000-05-09
WO1999020830A1 (en) 1999-04-29

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