SE8804260D0 - DEVICE FOR CONTINUOUS TREATMENT OF CELLULOSAMASSA - Google Patents

DEVICE FOR CONTINUOUS TREATMENT OF CELLULOSAMASSA

Info

Publication number
SE8804260D0
SE8804260D0 SE8804260A SE8804260A SE8804260D0 SE 8804260 D0 SE8804260 D0 SE 8804260D0 SE 8804260 A SE8804260 A SE 8804260A SE 8804260 A SE8804260 A SE 8804260A SE 8804260 D0 SE8804260 D0 SE 8804260D0
Authority
SE
Sweden
Prior art keywords
gas
conduit
tight
cellulosamassa
pulp
Prior art date
Application number
SE8804260A
Other languages
Swedish (sv)
Other versions
SE8804260A (en
SE462567B (en
Original Assignee
Sunds Defibrator 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
Publication of SE8804260D0 publication Critical patent/SE8804260D0/en
Priority to SE8804260A priority Critical patent/SE462567B/en
Application filed by Sunds Defibrator Ab filed Critical Sunds Defibrator Ab
Publication of SE8804260A publication Critical patent/SE8804260A/xx
Priority to EP19890912679 priority patent/EP0445144A1/en
Priority to AU45203/89A priority patent/AU4520389A/en
Priority to JP51172389A priority patent/JPH04501890A/en
Priority to PCT/SE1989/000650 priority patent/WO1990006395A1/en
Priority to NZ23150189A priority patent/NZ231501A/en
Priority to CA 2003769 priority patent/CA2003769A1/en
Publication of SE462567B publication Critical patent/SE462567B/en
Priority to FI912522A priority patent/FI912522A0/en
Priority to NO912008A priority patent/NO912008D0/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)

Abstract

An apparatus for continuous processing of pulp with an activation chemical in gas phase, preferably nitrogen dioxide, and a gas containing oxygen. The apparatus consists of a gas-tight vessel (1) with gas-tight infeed device (2) at the top and gas-tight discharge device (5) at the bottom. A conduit (13) for the supply of nitrogen dioxide is connected to the top of said vessel, which is divided into an upper portion (8) and a lower portion (9). A conduit (14) with a fan (15) for the recycling of gas from the discharge device (5) is connected to the transition between the upper portion (8) and lower portion (9), where the fan is capable to produce a gradient in the downward flow rate between gas and pulp. A conduit (16) for the supply of oxygen gas is connected to said recycling conduit (14).
SE8804260A 1988-11-25 1988-11-25 DEVICE FOR CONTINUOUS TREATMENT OF CELLULOSAMASSA WITH AN ACTIVATING CHEMICAL SE462567B (en)

Priority Applications (9)

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
EP19890912679 EP0445144A1 (en) 1988-11-25 1989-11-13 Apparatus for continuous processing of pulp
AU45203/89A AU4520389A (en) 1988-11-25 1989-11-13 Apparatus for continuous processing of pulp
JP51172389A JPH04501890A (en) 1988-11-25 1989-11-13 Equipment for continuous processing of pulp
PCT/SE1989/000650 WO1990006395A1 (en) 1988-11-25 1989-11-13 Apparatus for continuous processing of pulp
NZ23150189A NZ231501A (en) 1988-11-25 1989-11-23 Apparatus for continuous processing of pulp with nitrogen dioxide gas and oxygen
CA 2003769 CA2003769A1 (en) 1988-11-25 1989-11-24 Apparatus for continuous processing of pulp
NO912008A NO912008D0 (en) 1988-11-25 1991-05-24 DEVICE FOR CONTINUOUS TREATMENT OF MASS.
FI912522A FI912522A0 (en) 1988-11-25 1991-05-24 ANORDNING FOER KONTINUERLIG TILLVERKNING AV FIBERMASSA.

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 (3)

Publication Number Publication Date
SE8804260D0 true SE8804260D0 (en) 1988-11-25
SE8804260A SE8804260A (en) 1988-11-25
SE462567B SE462567B (en) 1990-07-16

Family

ID=20374061

Family Applications (1)

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

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
CA2003769A1 (en) 1990-05-25
AU4520389A (en) 1990-06-26
SE8804260A (en) 1988-11-25
JPH04501890A (en) 1992-04-02
WO1990006395A1 (en) 1990-06-14
SE462567B (en) 1990-07-16
EP0445144A1 (en) 1991-09-11
NZ231501A (en) 1991-12-23
FI912522A0 (en) 1991-05-24

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