NO300075B1 - Fremgangsmåte for kondisjonering av en ozongass-resirkuleringsström ved ozonbleking av masse - Google Patents
Fremgangsmåte for kondisjonering av en ozongass-resirkuleringsström ved ozonbleking av masse Download PDFInfo
- Publication number
- NO300075B1 NO300075B1 NO921991A NO921991A NO300075B1 NO 300075 B1 NO300075 B1 NO 300075B1 NO 921991 A NO921991 A NO 921991A NO 921991 A NO921991 A NO 921991A NO 300075 B1 NO300075 B1 NO 300075B1
- Authority
- NO
- Norway
- Prior art keywords
- gas
- ozone
- pulp
- carbon dioxide
- exhaust gas
- Prior art date
Links
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 title claims description 128
- 238000000034 method Methods 0.000 title claims description 62
- 238000004061 bleaching Methods 0.000 title claims description 25
- 230000003750 conditioning effect Effects 0.000 title description 2
- 239000007789 gas Substances 0.000 claims description 198
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 176
- 239000001569 carbon dioxide Substances 0.000 claims description 88
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 88
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 69
- 239000001301 oxygen Substances 0.000 claims description 69
- 229910052760 oxygen Inorganic materials 0.000 claims description 69
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 44
- 239000000356 contaminant Substances 0.000 claims description 40
- 239000003344 environmental pollutant Substances 0.000 claims description 17
- 231100000719 pollutant Toxicity 0.000 claims description 17
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 15
- 238000011010 flushing procedure Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 14
- 239000003463 adsorbent Substances 0.000 claims description 12
- 238000004076 pulp bleaching Methods 0.000 claims description 11
- 238000005201 scrubbing Methods 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000007844 bleaching agent Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 239000000741 silica gel Substances 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- 238000001179 sorption measurement Methods 0.000 claims description 4
- 239000010457 zeolite Substances 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 239000012080 ambient air Substances 0.000 claims description 3
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 3
- 239000000920 calcium hydroxide Substances 0.000 claims description 3
- 235000011116 calcium hydroxide Nutrition 0.000 claims description 3
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims description 3
- 229910021536 Zeolite Inorganic materials 0.000 claims description 2
- 238000011109 contamination Methods 0.000 claims description 2
- 238000005202 decontamination Methods 0.000 claims description 2
- 230000003588 decontaminative effect Effects 0.000 claims description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical group O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 2
- 229910001882 dioxygen Inorganic materials 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 31
- 238000010926 purge Methods 0.000 description 30
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 26
- 230000000694 effects Effects 0.000 description 25
- 239000003085 diluting agent Substances 0.000 description 15
- 230000002829 reductive effect Effects 0.000 description 14
- 229910052757 nitrogen Inorganic materials 0.000 description 13
- 238000005406 washing Methods 0.000 description 13
- 238000004064 recycling Methods 0.000 description 12
- 239000003570 air Substances 0.000 description 11
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 8
- 238000013022 venting Methods 0.000 description 8
- 239000000243 solution Substances 0.000 description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 6
- 229910002091 carbon monoxide Inorganic materials 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000000835 fiber Substances 0.000 description 5
- 238000011049 filling Methods 0.000 description 5
- 229910052786 argon Inorganic materials 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 239000002808 molecular sieve Substances 0.000 description 3
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000002274 desiccant Substances 0.000 description 2
- 239000006028 limestone Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000003421 catalytic decomposition reaction Methods 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 238000005094 computer simulation Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 150000002926 oxygen Chemical class 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000002000 scavenging effect Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/62—Carbon oxides
-
- 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
-
- 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
- C01B2201/60—Feed streams for electrical dischargers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/40—Capture or disposal of greenhouse gases of CO2
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/151—Reduction of greenhouse gas [GHG] emissions, e.g. CO2
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Wood Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Biomedical Technology (AREA)
- Paper (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/739,050 US6126781A (en) | 1991-08-01 | 1991-08-01 | Process for conditioning ozone gas recycle stream in ozone pulp bleaching |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO921991D0 NO921991D0 (no) | 1992-05-20 |
| NO921991L NO921991L (no) | 1993-02-02 |
| NO300075B1 true NO300075B1 (no) | 1997-04-01 |
Family
ID=24970589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO921991A NO300075B1 (no) | 1991-08-01 | 1992-05-20 | Fremgangsmåte for kondisjonering av en ozongass-resirkuleringsström ved ozonbleking av masse |
Country Status (14)
| Country | Link |
|---|---|
| US (3) | US6126781A (xx) |
| EP (1) | EP0526383A1 (xx) |
| JP (1) | JPH0694636B2 (xx) |
| KR (1) | KR960006126B1 (xx) |
| CN (1) | CN1072469A (xx) |
| AU (2) | AU647926B2 (xx) |
| BR (1) | BR9202395A (xx) |
| CA (1) | CA2069017C (xx) |
| FI (1) | FI922278A (xx) |
| NO (1) | NO300075B1 (xx) |
| NZ (1) | NZ242793A (xx) |
| RU (1) | RU2082666C1 (xx) |
| SE (1) | SE9201606L (xx) |
| ZA (1) | ZA923756B (xx) |
Families Citing this family (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6126781A (en) * | 1991-08-01 | 2000-10-03 | Union Camp Patent Holding, Inc. | Process for conditioning ozone gas recycle stream in ozone pulp bleaching |
| SE9200183L (sv) * | 1992-01-23 | 1993-07-24 | Kamyr Ab | Avskiljningsanordning samt foerfarande |
| CA2082557C (en) * | 1992-02-24 | 1997-03-11 | Charles W. Hankins | Integrated pulping process of waste paper yielding tissue-grade paper fibers |
| CA2078276C (en) * | 1992-09-15 | 2004-05-25 | Derek Hornsey | Recovery of oxygen-rich gas from ozone bleaching processes |
| US5403441A (en) * | 1992-11-13 | 1995-04-04 | Union Camp Patent Holding, Inc. | Method for controlling an ozone bleaching process |
| EP0692044B1 (en) * | 1993-03-29 | 1999-12-15 | Beloit Technologies, Inc. | Method for reusing spent gas from an ozone bleaching reactor |
| US5571378A (en) * | 1993-11-23 | 1996-11-05 | Hampshire Chemical Ltd. | Process for high-pH metal ion chelation in pulps |
| US6210527B1 (en) * | 1994-03-14 | 2001-04-03 | The Boc Group, Inc. | Pulp bleaching method wherein an ozone bleaching waste stream is scrubbed to form an oxygen containing stream |
| TW350832B (en) * | 1994-08-24 | 1999-01-21 | Ebara Corp | Method for generating ozone and its use |
| SE516030C2 (sv) * | 1994-11-14 | 2001-11-12 | Aga Ab | Regenerering av en gasblandning från ett ozonbleksteg |
| US5695604A (en) * | 1996-08-05 | 1997-12-09 | Beloit Technologies, Inc. | Method for reprocessing an ozone-containing gas present in a pulp bleaching plant |
| ES2116952T3 (es) * | 1995-08-07 | 2000-02-01 | Beloit Technologies Inc | Metodo para el reprocesado de un gas conteniendo ozono, presente en una planta de blanqueo de pasta de papel. |
| US6193852B1 (en) | 1997-05-28 | 2001-02-27 | The Boc Group, Inc. | Ozone generator and method of producing ozone |
| WO2002043838A2 (de) * | 2000-12-01 | 2002-06-06 | Linde Aktiengesellschaft | Verfahren zur reinigung von abgas aus einer zellstoffabrik |
| US6916359B2 (en) * | 2002-04-25 | 2005-07-12 | The Boc Group, Inc. | Ozone production processes |
| US20050129571A1 (en) * | 2003-12-10 | 2005-06-16 | Steris Inc. | Ozone enhanced vaporized hydrogen peroxide decontamination method and system |
| FI20080008L (fi) * | 2008-01-08 | 2009-07-09 | Andritz Oy | Otsonipitoisen kaasun käsittely massan valkaisun yhteydessä |
| CN102725050A (zh) * | 2009-11-30 | 2012-10-10 | 株式会社Ark | 用于臭氧处理设备的排氧再循环装置和具有该装置的臭氧利用系统 |
| SE1150015A1 (sv) * | 2011-01-12 | 2012-07-13 | Wallenius Water Ab | Ozone bleaching of pulp |
| TW201610265A (zh) | 2014-05-20 | 2016-03-16 | 喬治亞太平洋消費者產品公司 | 非木材纖維之漂白及植物性雜質減量方法 |
| TW201610261A (zh) | 2014-05-20 | 2016-03-16 | 喬治亞太平洋消費者產品公司 | 非木材纖維之漂白及植物性雜質減量方法 |
| TW201544652A (zh) | 2014-05-20 | 2015-12-01 | Georgia Pacific Consumer Prod | 非木材纖維之漂白及植物性雜質減量方法 |
| CN107780084A (zh) * | 2016-08-26 | 2018-03-09 | 天津纺织集团进出口股份有限公司 | 一种棉纱用臭氧漂白装置的制作方法 |
| CN109748377A (zh) * | 2019-03-25 | 2019-05-14 | 贺宝莹 | 纯氧循环制臭氧处理污水法 |
| CN111701423A (zh) * | 2020-07-30 | 2020-09-25 | 山东泓瑞医药科技股份公司 | 一种臭氧化反应尾气回收再利用的方法 |
Family Cites Families (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2466633A (en) * | 1948-05-26 | 1949-04-05 | James M Daily | Method of bleaching cellulosic pulp |
| US2700648A (en) * | 1951-01-19 | 1955-01-25 | Air Reduction | Ozone stabilization |
| US2700684A (en) | 1953-11-03 | 1955-01-25 | Onyx Oil And Chemical Company | Alkylated benzyl, nu-decyl, dimethylammonium hydroxide and salts thereof |
| US3151943A (en) * | 1958-04-07 | 1964-10-06 | Toyo Koatsu Ind Inc | Method for purifying exit oxygen from the ozonolysis of fatty acids |
| US3525665A (en) * | 1965-10-22 | 1970-08-25 | Lummus Co | Method of transferring impregnated wood chips from an impregnating vessel to a digester |
| US3421999A (en) * | 1966-03-28 | 1969-01-14 | Tri O Dynamics Inc | Ozone generator for purifying a contaminated fluid system |
| SE333299B (sv) * | 1967-11-10 | 1971-03-08 | Sunds Ab | Foerfarande vid och anordning foer blekning av foeretraedesvis cellulosamassa med gasformigt blekmedel |
| US3715430A (en) * | 1969-08-04 | 1973-02-06 | E Ryan | Purified oxygen gas containing ozone and higher oxygen polymers |
| SE343092B (xx) * | 1970-06-22 | 1972-02-28 | Mo Och Domsjoe Ab | |
| US4196043A (en) * | 1970-12-21 | 1980-04-01 | Scott Paper Company | Kraft pulp bleaching and recovery process |
| US3748262A (en) * | 1971-12-03 | 1973-07-24 | Grace W R & Co | Closed-loop generating and contacting system |
| US3963625A (en) * | 1975-03-12 | 1976-06-15 | W. R. Grace & Co. | Ozone generation and recovery system |
| US4132637A (en) * | 1976-09-02 | 1979-01-02 | Fmc Corporation | Ozone disinfection in waste water treatment with recycling of ozonation off gas |
| 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 |
| 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 |
| JPS55158107A (en) * | 1979-05-29 | 1980-12-09 | Mitsubishi Electric Corp | Oxygen recycling type ozone generating apparatus |
| DE2942279C2 (de) * | 1979-10-19 | 1986-01-09 | Chemische Werke Hüls AG, 4370 Marl | Verfahren zur Reinigung des bei der Umsetzung von Olefinen mit Ozon in carbonsaurem Medium die Ozonolysestufe verlassenden Gasstromes |
| JPS632883A (ja) * | 1986-06-19 | 1988-01-07 | 協和化工株式会社 | 堆肥製造方法とその装置 |
| JPS6363683A (ja) * | 1986-09-04 | 1988-03-22 | Shin Etsu Chem Co Ltd | （フェニルジメチルカルビニル）シラン化合物の製造方法 |
| US5181989A (en) * | 1990-10-26 | 1993-01-26 | Union Camp Patent Holdings, Inc. | Reactor for bleaching high consistency pulp with ozone |
| AT392256B (de) * | 1989-06-26 | 1991-02-25 | Voest Alpine Ind Anlagen | Verfahren zur herstellung von sauerstoff und/oder ozon |
| AT395180B (de) * | 1989-08-16 | 1992-10-12 | Andritz Ag Maschf | Verfahren zur zerkleinerung von materialien und anlage zu dessen durchfuehrung |
| US5164043A (en) * | 1990-05-17 | 1992-11-17 | Union Camp Patent Holding, Inc. | Environmentally improved process for bleaching lignocellulosic materials with ozone |
| EP0492040A1 (en) * | 1990-12-21 | 1992-07-01 | Kamyr, Inc. | Tumbling ozone reactor for paper pulp |
| CA2068981C (en) * | 1991-05-24 | 1996-08-27 | Michael A. Pikulin | Two stage pulp bleaching reactor |
| US6126781A (en) * | 1991-08-01 | 2000-10-03 | Union Camp Patent Holding, Inc. | Process for conditioning ozone gas recycle stream in ozone pulp bleaching |
-
1991
- 1991-08-01 US US07/739,050 patent/US6126781A/en not_active Expired - Fee Related
-
1992
- 1992-05-19 NZ NZ242793A patent/NZ242793A/en unknown
- 1992-05-19 FI FI922278A patent/FI922278A/fi not_active Application Discontinuation
- 1992-05-20 CA CA002069017A patent/CA2069017C/en not_active Expired - Fee Related
- 1992-05-20 NO NO921991A patent/NO300075B1/no unknown
- 1992-05-21 SE SE9201606A patent/SE9201606L/xx not_active Application Discontinuation
- 1992-05-22 ZA ZA923756A patent/ZA923756B/xx unknown
- 1992-05-23 CN CN92105010A patent/CN1072469A/zh active Pending
- 1992-06-02 AU AU17334/92A patent/AU647926B2/en not_active Ceased
- 1992-06-09 EP EP92610043A patent/EP0526383A1/en not_active Ceased
- 1992-06-16 RU SU925011851A patent/RU2082666C1/ru active
- 1992-06-24 BR BR929202395A patent/BR9202395A/pt not_active Application Discontinuation
- 1992-07-31 KR KR1019920013739A patent/KR960006126B1/ko not_active IP Right Cessation
- 1992-08-03 JP JP4206856A patent/JPH0694636B2/ja not_active Expired - Lifetime
- 1992-09-14 US US07/944,863 patent/US5296097A/en not_active Expired - Lifetime
-
1993
- 1993-12-01 AU AU52090/93A patent/AU657440B2/en not_active Ceased
-
2000
- 2000-08-31 US US09/653,355 patent/US6315861B1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| AU657440B2 (en) | 1995-03-09 |
| KR960006126B1 (ko) | 1996-05-09 |
| FI922278A (fi) | 1993-02-02 |
| JPH0694636B2 (ja) | 1994-11-24 |
| AU5209093A (en) | 1994-02-10 |
| CN1072469A (zh) | 1993-05-26 |
| JPH05209388A (ja) | 1993-08-20 |
| US5296097A (en) | 1994-03-22 |
| AU1733492A (en) | 1993-02-11 |
| NO921991D0 (no) | 1992-05-20 |
| NZ242793A (en) | 1994-06-27 |
| FI922278A0 (fi) | 1992-05-19 |
| US6315861B1 (en) | 2001-11-13 |
| KR930004579A (ko) | 1993-03-22 |
| ZA923756B (en) | 1993-01-27 |
| CA2069017A1 (en) | 1993-02-02 |
| EP0526383A1 (en) | 1993-02-03 |
| RU2082666C1 (ru) | 1997-06-27 |
| CA2069017C (en) | 1997-02-25 |
| BR9202395A (pt) | 1993-03-16 |
| NO921991L (no) | 1993-02-02 |
| SE9201606L (sv) | 1993-02-02 |
| AU647926B2 (en) | 1994-03-31 |
| US6126781A (en) | 2000-10-03 |
| SE9201606D0 (sv) | 1992-05-21 |
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