FI952320A0 - Otsonivalkaisuprosessin säätömenetelmä - Google Patents

Otsonivalkaisuprosessin säätömenetelmä

Info

Publication number
FI952320A0
FI952320A0 FI952320A FI952320A FI952320A0 FI 952320 A0 FI952320 A0 FI 952320A0 FI 952320 A FI952320 A FI 952320A FI 952320 A FI952320 A FI 952320A FI 952320 A0 FI952320 A0 FI 952320A0
Authority
FI
Finland
Prior art keywords
controlling
bleaching process
ozone bleaching
ozone
bleaching
Prior art date
Application number
FI952320A
Other languages
English (en)
Swedish (sv)
Other versions
FI952320A (fi
Inventor
George W Mcdonald
Original Assignee
Union Camp Patent Holding
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 Union Camp Patent Holding filed Critical Union Camp Patent Holding
Publication of FI952320A0 publication Critical patent/FI952320A0/fi
Publication of FI952320A publication Critical patent/FI952320A/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
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
    • C01B13/10—Preparation of ozone
    • C01B13/11—Preparation of ozone by electric discharge
    • 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
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/06—Treatment of pulp gases; Recovery of the heat content of the gases; Treatment of gases arising from various sources in pulp and paper mills; Regeneration of gaseous SO2, e.g. arising from liquors containing sulfur compounds
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2201/00—Preparation of ozone by electrical discharge
    • C01B2201/50—Part of the product being recycled
FI952320A 1992-11-13 1995-05-12 Otsonivalkaisuprosessin säätömenetelmä FI952320A (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/976,082 US5403441A (en) 1992-11-13 1992-11-13 Method for controlling an ozone bleaching process
PCT/US1993/010686 WO1994011570A1 (en) 1992-11-13 1993-11-08 Method for controlling an ozone bleaching process

Publications (2)

Publication Number Publication Date
FI952320A0 true FI952320A0 (fi) 1995-05-12
FI952320A FI952320A (fi) 1995-05-12

Family

ID=25523702

Family Applications (1)

Application Number Title Priority Date Filing Date
FI952320A FI952320A (fi) 1992-11-13 1995-05-12 Otsonivalkaisuprosessin säätömenetelmä

Country Status (12)

Country Link
US (1) US5403441A (fi)
EP (1) EP0672210A4 (fi)
JP (1) JPH08505662A (fi)
KR (1) KR950704568A (fi)
AU (1) AU665295B2 (fi)
BR (1) BR9307414A (fi)
CA (1) CA2148614A1 (fi)
FI (1) FI952320A (fi)
NZ (1) NZ258021A (fi)
RU (1) RU95112498A (fi)
WO (1) WO1994011570A1 (fi)
ZA (1) ZA938420B (fi)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5364505A (en) * 1992-12-07 1994-11-15 Kamyr, Inc. Pressurized ozone pulp delignification reactor and a compressor for supplying ozone to the reactor
US5672247A (en) * 1995-03-03 1997-09-30 Union Camp Patent Holding, Inc. Control scheme for rapid pulp delignification and bleaching
US5736004A (en) * 1995-03-03 1998-04-07 Union Camp Patent Holding, Inc. Control scheme for rapid pulp delignification and bleaching
US5695604A (en) * 1996-08-05 1997-12-09 Beloit Technologies, Inc. Method for reprocessing an ozone-containing gas present in a pulp bleaching plant
PT843757E (pt) * 1995-08-07 2000-04-28 Beloit Technologies Inc Metodo para o reprocessamento de um gas que contem ozono presente numa instalacao de branqueamento de pasta de papel
US5644070A (en) * 1996-04-22 1997-07-01 Dynamic Manufacturing Inc. Ozone concentration sensor
US6193852B1 (en) 1997-05-28 2001-02-27 The Boc Group, Inc. Ozone generator and method of producing ozone
US6153050A (en) * 1998-03-24 2000-11-28 Noranda Forest Inc. Method and system for controlling the addition of bleaching reagents to obtain a substantially constant percentage of pulp delignification across the first bleaching/delignifying stage
KR100342378B1 (ko) * 2000-03-21 2002-07-26 송강산업 주식회사 종이제조용 화공약품 자동투입장치
SE521780C2 (sv) * 2003-01-31 2003-12-09 Kvaerner Pulping Tech Förfarande för blekning av cellulosamassa samt bleklinje härför
US20060090865A1 (en) * 2004-01-13 2006-05-04 Vidar Snekkenes Method of bleaching cellulose pulp and bleaching line therefore
RU2422976C2 (ru) * 2006-12-20 2011-06-27 Праймозоун Продакшн Аб Блок питания для емкостной нагрузки
US9808020B2 (en) * 2009-12-22 2017-11-07 Archer Daniels Midland Co. Systems and methods for ozone treatment of toxin in grain
US9808021B2 (en) * 2009-12-22 2017-11-07 Archer Daniels Midland Co. Systems and methods for ozone treatment of grain in grain piles
US9961915B2 (en) * 2009-12-22 2018-05-08 Archer Daniels Midland Co. Systems and methods for continuous flow ozone treatment of grain
MY189149A (en) * 2011-01-28 2022-01-28 Emery Oleochemicals Llc Process for reconditioning a gas from the ozonolysis of an unsaturated fatty acid
CN107687107B (zh) * 2017-09-30 2023-03-21 华南理工大学 一种安全型臭氧漂白实验装置及方法

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3650890A (en) * 1968-06-19 1972-03-21 Honshu Paper Co Ltd Continuously detecting the degree of delignification of pulp
US3617717A (en) * 1969-04-28 1971-11-02 Westinghouse Electric Corp Optimizing control systems
US3607623A (en) * 1970-05-01 1971-09-21 Int Paper Co Meter for measuring brightness of bleached fibers and controlling the bleaching process
FI67413C (fi) * 1977-04-27 1985-03-11 Myrens Verksted As Foerfarande foer behandling av finfoerdelad fiberhaltig eller cellulosahaltig massa samt anordning foer utfoerande av foerfarandet
SE415580C (sv) * 1977-05-11 1984-06-05 Mo Och Domsjoe Ab Forfarande for reglering av tillforseln av reaktionskemikalier vid delignifiering av cellulosamaterial
NO142091C (no) * 1977-10-17 1980-06-25 Myrens Verksted As Fremgangsmaate ved ozonbehandling av raffinoermekanisk og termomekanisk masse.
GB2024820B (en) * 1978-06-30 1982-12-01 Snia Viscosa Treatment of oxygen-containing recycle gas in an ozonisation process
JPS55149106A (en) * 1979-05-02 1980-11-20 Mitsubishi Electric Corp Oxygen recycling type ozone generating system
US4298427A (en) * 1979-06-15 1981-11-03 Weyerhaeuser Company Method and apparatus for intimately mixing oxygen and pulp while using an alkali to extract bleaching by-products
JPS5749787A (en) * 1980-09-08 1982-03-23 Hitachi Ltd Boiling cooler
US4619733A (en) * 1983-11-30 1986-10-28 Kooi Boon Lam Pollution free pulping process using recycled wash effluent from multiple bleach stages to remove black liquor and recovering sodium hydroxide from the black liquor
US4619732A (en) * 1983-12-02 1986-10-28 The Institute Of Paper Chemistry Method for drying pulping liquor to a burnable solid
FI71178C (fi) * 1984-11-08 1988-05-18 Rauma Repola Oy Foerfarande foer reglering av syreblekningsprocess.
US4978425A (en) * 1989-06-13 1990-12-18 Elsag International B.V. Method for controlling the degree of cooking in a digester
KR920703922A (ko) * 1990-05-17 1992-12-18 원본미기재 환경오염 개선된 리그노셀룰로오스 물질 표백방법
AT395445B (de) * 1991-05-02 1992-12-28 Voest Alpine Ind Anlagen Verfahren zum bleichen von cellulosehaeltigem material
NZ232530A (en) * 1991-07-29 1992-07-28 Union Camp Corp Alkaline process for bleaching and delignifying wood or pulp
US6126781A (en) * 1991-08-01 2000-10-03 Union Camp Patent Holding, Inc. Process for conditioning ozone gas recycle stream in ozone pulp bleaching

Also Published As

Publication number Publication date
BR9307414A (pt) 1999-06-29
US5403441A (en) 1995-04-04
JPH08505662A (ja) 1996-06-18
KR950704568A (ko) 1995-11-20
FI952320A (fi) 1995-05-12
EP0672210A1 (en) 1995-09-20
AU5550294A (en) 1994-06-08
ZA938420B (en) 1994-06-13
EP0672210A4 (en) 1995-11-29
AU665295B2 (en) 1995-12-21
RU95112498A (ru) 1997-01-27
CA2148614A1 (en) 1994-05-26
NZ258021A (en) 1996-10-28
WO1994011570A1 (en) 1994-05-26

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Legal Events

Date Code Title Description
FD Application lapsed