FI73252C - Ozonblekning av cellulosamaterial. - Google Patents

Ozonblekning av cellulosamaterial. Download PDF

Info

Publication number
FI73252C
FI73252C FI840697A FI840697A FI73252C FI 73252 C FI73252 C FI 73252C FI 840697 A FI840697 A FI 840697A FI 840697 A FI840697 A FI 840697A FI 73252 C FI73252 C FI 73252C
Authority
FI
Finland
Prior art keywords
pulp
ozone
lignin
bleaching
consistency
Prior art date
Application number
FI840697A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI840697A (fi
FI840697A0 (fi
FI73252B (fi
Inventor
Rudra P Singh
Original Assignee
Scott Paper 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
Application filed by Scott Paper Co filed Critical Scott Paper Co
Publication of FI840697A publication Critical patent/FI840697A/fi
Publication of FI840697A0 publication Critical patent/FI840697A0/fi
Application granted granted Critical
Publication of FI73252B publication Critical patent/FI73252B/fi
Publication of FI73252C publication Critical patent/FI73252C/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
    • D21C9/1073—Bleaching ; Apparatus therefor with O3
    • 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
    • D21C9/1015—Bleaching ; Apparatus therefor with use of means other than pressure, temperature

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
FI840697A 1982-06-24 1984-02-21 Ozonblekning av cellulosamaterial. FI73252C (fi)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US39174782A 1982-06-24 1982-06-24
US39174782 1982-06-24
US8300820 1983-06-01
PCT/US1983/000820 WO1984000181A1 (en) 1982-06-24 1983-06-01 Ozone bleaching of cellulosic materials

Publications (4)

Publication Number Publication Date
FI840697A FI840697A (fi) 1984-02-21
FI840697A0 FI840697A0 (fi) 1984-02-21
FI73252B FI73252B (fi) 1987-05-29
FI73252C true FI73252C (fi) 1987-09-10

Family

ID=23547770

Family Applications (1)

Application Number Title Priority Date Filing Date
FI840697A FI73252C (fi) 1982-06-24 1984-02-21 Ozonblekning av cellulosamaterial.

Country Status (5)

Country Link
EP (1) EP0112377B1 (de)
AU (1) AU593763B2 (de)
CA (1) CA1186105A (de)
FI (1) FI73252C (de)
WO (1) WO1984000181A1 (de)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
US5472572A (en) * 1990-10-26 1995-12-05 Union Camp Patent Holding, Inc. Reactor for bleaching high consistency pulp 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
US5164044A (en) * 1990-05-17 1992-11-17 Union Camp Patent Holding, Inc. Environmentally improved process for bleaching lignocellulosic materials with ozone
US5174861A (en) * 1990-10-26 1992-12-29 Union Camp Patent Holdings, Inc. Method of bleaching high consistency pulp with ozone
US5520783A (en) * 1990-10-26 1996-05-28 Union Camp Patent Holding, Inc. Apparatus for bleaching high consistency pulp with ozone
CA2068981C (en) * 1991-05-24 1996-08-27 Michael A. Pikulin Two stage pulp bleaching reactor
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
CA2505018A1 (en) * 2002-11-07 2004-05-21 Nippon Paper Industries Co., Ltd. Method for improving the discoloration resistance of pulp and pulp improved in discoloration resistance
WO2005121442A1 (ja) * 2004-06-08 2005-12-22 Nippon Paper Industries Co., Ltd. パルプの漂白方法
US20090090478A1 (en) * 2007-10-05 2009-04-09 Hollomon Martha G Selectivity improvement in oxygen delignification and bleaching of lignocellulose pulp using singlet oxygen
US7812947B2 (en) 2008-01-21 2010-10-12 Honeywell International Inc. Apparatus and method for measuring and/or controlling paper pulp properties
US8049892B2 (en) 2008-01-22 2011-11-01 Honeywell International Inc. Apparatus and method for camera-based color measurements
US7592608B2 (en) 2008-01-22 2009-09-22 Honeywell International Inc. Apparatus and method for measuring and/or controlling ultraviolet-activated materials in a paper-making process
CN105733878B (zh) * 2016-04-06 2019-04-23 北京化工大学 一种酒糟再发酵的预处理方式

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
UST989185I4 (de) * 1937-06-01
CA973660A (en) * 1972-05-29 1975-09-02 Thomas Joachimides Treatment of cellulosic matter with active nitrogen
FR2255418B1 (de) * 1973-12-21 1976-05-07 Europeen Cellulose
US3920547A (en) * 1974-05-06 1975-11-18 Houston Research Inc Method of destroying cyanides
US4230571A (en) * 1979-01-22 1980-10-28 Dadd Robert C Ozone/ultraviolet water purification

Also Published As

Publication number Publication date
FI840697A (fi) 1984-02-21
AU1770283A (en) 1984-01-26
FI840697A0 (fi) 1984-02-21
EP0112377A1 (de) 1984-07-04
WO1984000181A1 (en) 1984-01-19
FI73252B (fi) 1987-05-29
EP0112377B1 (de) 1986-11-12
AU593763B2 (en) 1990-02-22
CA1186105A (en) 1985-04-30

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Legal Events

Date Code Title Description
MM Patent lapsed

Owner name: SCOTT PAPER COMPANY