ZA989250B - Manufacture of chemical paper pulp. - Google Patents

Manufacture of chemical paper pulp.

Info

Publication number
ZA989250B
ZA989250B ZA9809250A ZA989250A ZA989250B ZA 989250 B ZA989250 B ZA 989250B ZA 9809250 A ZA9809250 A ZA 9809250A ZA 989250 A ZA989250 A ZA 989250A ZA 989250 B ZA989250 B ZA 989250B
Authority
ZA
South Africa
Prior art keywords
manufacture
paper pulp
chemical paper
chemical
pulp
Prior art date
Application number
ZA9809250A
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 ZA989250B publication Critical patent/ZA989250B/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
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1042—Use of chelating 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
    • D21C3/02—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
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)
ZA9809250A 1997-10-17 1998-10-09 Manufacture of chemical paper pulp. ZA989250B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE9700831A BE1011504A3 (en) 1997-10-17 1997-10-17 Manufacturing pulp chemicals.

Publications (1)

Publication Number Publication Date
ZA989250B true ZA989250B (en) 2000-04-10

Family

ID=3890784

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA9809250A ZA989250B (en) 1997-10-17 1998-10-09 Manufacture of chemical paper pulp.

Country Status (6)

Country Link
AR (1) AR017355A1 (en)
AU (1) AU1485399A (en)
BE (1) BE1011504A3 (en)
ID (1) ID21116A (en)
WO (1) WO1999020829A1 (en)
ZA (1) ZA989250B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2728278C (en) 2008-06-20 2016-06-28 Zheng Tan Composition and recording sheet with improved optical properties

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6059189A (en) * 1983-08-24 1985-04-05 ベロイト　コ−ポレ−ション Multi-stage digestion of wood pulp
WO1994010375A1 (en) * 1992-10-26 1994-05-11 Kamyr, Inc. Displacement chelate treatment of pulp

Also Published As

Publication number Publication date
AR017355A1 (en) 2001-09-05
WO1999020829A1 (en) 1999-04-29
AU1485399A (en) 1999-05-10
BE1011504A3 (en) 1999-10-05
ID21116A (en) 1999-04-22

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