ZA989247B - Manufacture of chemical paper pulp. - Google Patents

Manufacture of chemical paper pulp.

Info

Publication number
ZA989247B
ZA989247B ZA9809247A ZA989247A ZA989247B ZA 989247 B ZA989247 B ZA 989247B ZA 9809247 A ZA9809247 A ZA 9809247A ZA 989247 A ZA989247 A ZA 989247A ZA 989247 B ZA989247 B ZA 989247B
Authority
ZA
South Africa
Prior art keywords
manufacture
paper pulp
chemical paper
chemical
pulp
Prior art date
Application number
ZA9809247A
Inventor
Eric Chauveheid
Johan Devenyns
Original Assignee
Solvay
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 Solvay filed Critical Solvay
Publication of ZA989247B publication Critical patent/ZA989247B/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)
ZA9809247A 1997-10-17 1998-10-09 Manufacture of chemical paper pulp. ZA989247B (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
ZA989247B true ZA989247B (en) 2000-05-09

Family

ID=3890783

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA9809247A ZA989247B (en) 1997-10-17 1998-10-09 Manufacture of chemical paper pulp.

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
AR017356A1 (en) 2001-09-05
WO1999020830A1 (en) 1999-04-29
AU1030999A (en) 1999-05-10
ID21108A (en) 1999-04-22
BE1011503A3 (en) 1999-10-05

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