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FI822168L - Foerfarande och system foer att bringa ozon att reagera med cellulosamassa - Google Patents

Foerfarande och system foer att bringa ozon att reagera med cellulosamassa

Info

Publication number
FI822168L
FI822168L FI822168A FI822168A FI822168L FI 822168 L FI822168 L FI 822168L FI 822168 A FI822168 A FI 822168A FI 822168 A FI822168 A FI 822168A FI 822168 L FI822168 L FI 822168L
Authority
FI
Finland
Prior art keywords
att
foer
cellulosamassa
ozon
bringa
Prior art date
Application number
FI822168A
Other languages
English (en)
Other versions
FI822168A0 (fi
FI822168A7 (fi
Inventor
Russel W Hoag
Original Assignee
Ingersoll Rand Co
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
Priority claimed from US06/274,434 external-priority patent/US4394533A/en
Application filed by Ingersoll Rand Co filed Critical Ingersoll Rand Co
Publication of FI822168A0 publication Critical patent/FI822168A0/fi
Publication of FI822168L publication Critical patent/FI822168L/fi
Publication of FI822168A7 publication Critical patent/FI822168A7/fi

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
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Image Generation (AREA)
  • Golf Clubs (AREA)
  • Stored Programmes (AREA)
FI822168A 1981-06-17 1982-06-16 Menetelmä ja järjestelmä, joilla otsoni saatetaan reagoimaan massan kanssa. FI822168A7 (fi)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/274,434 US4394533A (en) 1980-06-25 1981-06-17 Air-cooled cables with terminals and method of producing same

Publications (3)

Publication Number Publication Date
FI822168A0 FI822168A0 (fi) 1982-06-16
FI822168L true FI822168L (fi) 1982-12-18
FI822168A7 FI822168A7 (fi) 1982-12-18

Family

ID=23048182

Family Applications (1)

Application Number Title Priority Date Filing Date
FI822168A FI822168A7 (fi) 1981-06-17 1982-06-16 Menetelmä ja järjestelmä, joilla otsoni saatetaan reagoimaan massan kanssa.

Country Status (4)

Country Link
CA (1) CA1181204A (fi)
FI (1) FI822168A7 (fi)
NO (1) NO821999L (fi)
SE (1) SE8203344L (fi)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5188708A (en) * 1989-02-15 1993-02-23 Union Camp Patent Holding, Inc. Process for high consistency oxygen delignification followed by ozone relignification
US5409570A (en) * 1989-02-15 1995-04-25 Union Camp Patent Holding, Inc. Process for ozone bleaching of oxygen delignified pulp while conveying the pulp through a reaction zone
US5211811A (en) * 1989-02-15 1993-05-18 Union Camp Patent Holding, Inc. Process for high consistency oxygen delignification of alkaline treated pulp followed by ozone delignification
US5181989A (en) * 1990-10-26 1993-01-26 Union Camp Patent Holdings, Inc. Reactor for bleaching high consistency pulp with ozone
US5472572A (en) * 1990-10-26 1995-12-05 Union Camp Patent Holding, Inc. Reactor for bleaching high consistency pulp with ozone
US5164044A (en) * 1990-05-17 1992-11-17 Union Camp Patent Holding, Inc. Environmentally improved process for bleaching lignocellulosic materials with ozone
US5441603A (en) * 1990-05-17 1995-08-15 Union Camp Patent Holding, Inc. Method for chelation of pulp prior to ozone delignification
US5164043A (en) * 1990-05-17 1992-11-17 Union Camp Patent Holding, Inc. Environmentally improved process for bleaching lignocellulosic materials with ozone
US5520783A (en) * 1990-10-26 1996-05-28 Union Camp Patent Holding, Inc. Apparatus for bleaching high consistency pulp with ozone
US5174861A (en) * 1990-10-26 1992-12-29 Union Camp Patent Holdings, Inc. Method of bleaching high consistency pulp with ozone
EP0515303B2 (en) * 1991-05-24 2001-07-04 Union Camp Patent Holding, Inc. Method for ozone bleaching
US5554259A (en) 1993-10-01 1996-09-10 Union Camp Patent Holdings, Inc. Reduction of salt scale precipitation by control of process stream Ph and salt concentration

Also Published As

Publication number Publication date
SE8203344L (sv) 1982-12-18
NO821999L (no) 1982-12-20
FI822168A0 (fi) 1982-06-16
CA1181204A (en) 1985-01-22
FI822168A7 (fi) 1982-12-18

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Legal Events

Date Code Title Description
FA Application withdrawn [patent]

Owner name: INGERSOLL-RAND COMPANY