NZ231501A - Apparatus for continuous processing of pulp with nitrogen dioxide gas and oxygen - Google Patents

Apparatus for continuous processing of pulp with nitrogen dioxide gas and oxygen

Info

Publication number
NZ231501A
NZ231501A NZ231501A NZ23150189A NZ231501A NZ 231501 A NZ231501 A NZ 231501A NZ 231501 A NZ231501 A NZ 231501A NZ 23150189 A NZ23150189 A NZ 23150189A NZ 231501 A NZ231501 A NZ 231501A
Authority
NZ
New Zealand
Prior art keywords
pulp
oxygen
dioxide gas
nitrogen dioxide
continuous processing
Prior art date
Application number
NZ231501A
Inventor
Bertil Berg
Per-Olov Lindblad
Olof Simonson
Alf Lindstrom
Original Assignee
Sunds Defibrator Ind Ab
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 Sunds Defibrator Ind Ab filed Critical Sunds Defibrator Ind Ab
Publication of NZ231501A publication Critical patent/NZ231501A/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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
NZ231501A 1988-11-25 1989-11-23 Apparatus for continuous processing of pulp with nitrogen dioxide gas and oxygen NZ231501A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8804260A SE462567B (en) 1988-11-25 1988-11-25 DEVICE FOR CONTINUOUS TREATMENT OF CELLULOSAMASSA WITH AN ACTIVATING CHEMICAL

Publications (1)

Publication Number Publication Date
NZ231501A true NZ231501A (en) 1991-12-23

Family

ID=20374061

Family Applications (1)

Application Number Title Priority Date Filing Date
NZ231501A NZ231501A (en) 1988-11-25 1989-11-23 Apparatus for continuous processing of pulp with nitrogen dioxide gas and oxygen

Country Status (8)

Country Link
EP (1) EP0445144A1 (en)
JP (1) JPH04501890A (en)
AU (1) AU4520389A (en)
CA (1) CA2003769A1 (en)
FI (1) FI912522A0 (en)
NZ (1) NZ231501A (en)
SE (1) SE462567B (en)
WO (1) WO1990006395A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5405497A (en) * 1990-08-28 1995-04-11 Kamyr, Inc. Method of chemically reacting a liquid with a gas in a vortex
RU2103433C1 (en) * 1995-01-16 1998-01-27 Грудинин Владимир Павлович Method and installation for treating fibrous mass by chemical reagent

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3964962A (en) * 1974-02-25 1976-06-22 Ingersoll-Rand Company Gaseous reaction apparatus and processes including a peripheral gas receiving chamber and a gas recirculation conduit
SE451149B (en) * 1983-01-26 1987-09-07 Mo Och Domsjoe Ab APPARATUS FOR CONTINUOUS TREATMENT OF WATER-INHALING LIGNOCELLULOSAMATER WITH NITRO OXIDE AND ACID

Also Published As

Publication number Publication date
WO1990006395A1 (en) 1990-06-14
SE462567B (en) 1990-07-16
SE8804260D0 (en) 1988-11-25
FI912522A0 (en) 1991-05-24
AU4520389A (en) 1990-06-26
CA2003769A1 (en) 1990-05-25
JPH04501890A (en) 1992-04-02
EP0445144A1 (en) 1991-09-11

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