FI952320A - Metod för kontroll av en ozonblekningsprocess - Google Patents
Metod för kontroll av en ozonblekningsprocess Download PDFInfo
- Publication number
- FI952320A FI952320A FI952320A FI952320A FI952320A FI 952320 A FI952320 A FI 952320A FI 952320 A FI952320 A FI 952320A FI 952320 A FI952320 A FI 952320A FI 952320 A FI952320 A FI 952320A
- Authority
- FI
- Finland
- Prior art keywords
- controlling
- bleaching process
- ozone bleaching
- ozone
- bleaching
- Prior art date
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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Inorganic Chemistry (AREA)
- Paper (AREA)
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 FI952320A0 (sv) | 1995-05-12 |
FI952320A true FI952320A (sv) | 1995-05-12 |
Family
ID=25523702
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI952320A FI952320A (sv) | 1992-11-13 | 1995-05-12 | Metod för kontroll av en ozonblekningsprocess |
Country Status (12)
Country | Link |
---|---|
US (1) | US5403441A (sv) |
EP (1) | EP0672210A4 (sv) |
JP (1) | JPH08505662A (sv) |
KR (1) | KR950704568A (sv) |
AU (1) | AU665295B2 (sv) |
BR (1) | BR9307414A (sv) |
CA (1) | CA2148614A1 (sv) |
FI (1) | FI952320A (sv) |
NZ (1) | NZ258021A (sv) |
RU (1) | RU95112498A (sv) |
WO (1) | WO1994011570A1 (sv) |
ZA (1) | ZA938420B (sv) |
Families Citing this family (17)
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 |
DE843757T1 (de) * | 1995-08-07 | 1998-11-12 | Beloit Technologies, Inc., Wilmington, Del. | Verfahren zum wiederaufbereiten von einem ozonenthaltenden gas in einer anlage zum zellstoffbleichen |
US5695604A (en) * | 1996-08-05 | 1997-12-09 | Beloit Technologies, Inc. | Method for reprocessing an ozone-containing gas present in a pulp bleaching plant |
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 |
SE0300276L (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 |
WO2008074767A2 (en) | 2006-12-20 | 2008-06-26 | Primozone Production Ab | Power supply apparatus for a capacitive load |
US9808021B2 (en) * | 2009-12-22 | 2017-11-07 | Archer Daniels Midland Co. | Systems and methods for ozone treatment of grain in grain piles |
US9808020B2 (en) * | 2009-12-22 | 2017-11-07 | Archer Daniels Midland Co. | Systems and methods for ozone treatment of toxin in grain |
US9961915B2 (en) * | 2009-12-22 | 2018-05-08 | Archer Daniels Midland Co. | Systems and methods for continuous flow ozone treatment of grain |
WO2012103310A2 (en) * | 2011-01-28 | 2012-08-02 | Emery Oleochemicals Llc | Process for reconditioning a gas from the ozonizing 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)
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 | 1984-10-15 | 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 (sv) * | 1984-11-08 | 1988-05-18 | Rauma Repola Oy | Förfarande för 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 |
BR9007533A (pt) * | 1990-05-17 | 1992-04-28 | Union Camp Corp | Processo para fabricacao de polpa alvejada e para deslignificar e alvejar um material lignoscelulosico |
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 |
-
1992
- 1992-11-13 US US07/976,082 patent/US5403441A/en not_active Expired - Fee Related
-
1993
- 1993-11-08 WO PCT/US1993/010686 patent/WO1994011570A1/en not_active Application Discontinuation
- 1993-11-08 RU RU95112498/12A patent/RU95112498A/ru unknown
- 1993-11-08 JP JP6512233A patent/JPH08505662A/ja active Pending
- 1993-11-08 BR BR9307414A patent/BR9307414A/pt not_active Application Discontinuation
- 1993-11-08 EP EP94900560A patent/EP0672210A4/en not_active Ceased
- 1993-11-08 NZ NZ258021A patent/NZ258021A/en unknown
- 1993-11-08 AU AU55502/94A patent/AU665295B2/en not_active Ceased
- 1993-11-08 CA CA002148614A patent/CA2148614A1/en not_active Abandoned
- 1993-11-08 KR KR1019950701878A patent/KR950704568A/ko not_active Application Discontinuation
- 1993-11-11 ZA ZA938420A patent/ZA938420B/xx unknown
-
1995
- 1995-05-12 FI FI952320A patent/FI952320A/sv not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
US5403441A (en) | 1995-04-04 |
ZA938420B (en) | 1994-06-13 |
BR9307414A (pt) | 1999-06-29 |
AU5550294A (en) | 1994-06-08 |
EP0672210A1 (en) | 1995-09-20 |
CA2148614A1 (en) | 1994-05-26 |
KR950704568A (ko) | 1995-11-20 |
FI952320A0 (sv) | 1995-05-12 |
JPH08505662A (ja) | 1996-06-18 |
RU95112498A (ru) | 1997-01-27 |
NZ258021A (en) | 1996-10-28 |
EP0672210A4 (en) | 1995-11-29 |
AU665295B2 (en) | 1995-12-21 |
WO1994011570A1 (en) | 1994-05-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD | Application lapsed |