ZA739305B - Method of producing cellulose pulp of high brightness - Google Patents
Method of producing cellulose pulp of high brightnessInfo
- Publication number
- ZA739305B ZA739305B ZA00739305A ZA739305A ZA739305B ZA 739305 B ZA739305 B ZA 739305B ZA 00739305 A ZA00739305 A ZA 00739305A ZA 739305 A ZA739305 A ZA 739305A ZA 739305 B ZA739305 B ZA 739305B
- Authority
- ZA
- South Africa
- Prior art keywords
- high brightness
- cellulose pulp
- producing cellulose
- producing
- pulp
- 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
- D21C3/00—Pulping cellulose-containing materials
- D21C3/22—Other features of pulping processes
- D21C3/26—Multistage processes
- D21C3/263—Multistage processes at least one stage being in presence of oxygen
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7216651A SE373395B (sv) | 1972-12-19 | 1972-12-19 | Forfarande for framstellning av cellulosamassa med hog ljushet genom uppslutning av ved med syrgas under tryck i nervaro av en kokvetska forsatt med basiska neutralisationsmedel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA739305B true ZA739305B (en) | 1975-07-30 |
Family
ID=20302569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA00739305A ZA739305B (en) | 1972-12-19 | 1973-12-06 | Method of producing cellulose pulp of high brightness |
Country Status (13)
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52121502A (en) * | 1976-04-07 | 1977-10-13 | V Nauchinoopuroizubuodosutobue | Process for producing halfffinished products from ground vegetable material |
| US4338158A (en) * | 1976-04-09 | 1982-07-06 | Weyerhaeuser Company | Pulping in the presence of a protector |
| US4080248A (en) * | 1976-06-28 | 1978-03-21 | Crown Zellerbach Corporation | Two-stage oxygen pulping |
| US4198266A (en) * | 1977-10-12 | 1980-04-15 | Airco, Inc. | Oxygen delignification of wood pulp |
| NO144711C (no) * | 1978-04-04 | 1981-10-21 | Myrens Verksted As | Fremgangsmaate til bleking av oksygendelignifiserte celluloseholdige masser med ozon |
| US4259150A (en) * | 1978-12-18 | 1981-03-31 | Kamyr Inc. | Plural stage mixing and thickening oxygen bleaching process |
| JPS57175275A (en) * | 1981-04-21 | 1982-10-28 | Fujitsu Ltd | Delayed time measuring circuit |
| CA1255058A (en) * | 1985-05-28 | 1989-06-06 | Gary B. Derdall | Process for preparation of potassium salts from pulping of lignocellulosic materials |
| US5217575A (en) * | 1988-10-18 | 1993-06-08 | Kamyr Ab | Process for oxygen bleaching using two vertical reactors |
| US5865898A (en) * | 1992-08-06 | 1999-02-02 | The Texas A&M University System | Methods of biomass pretreatment |
| US5693296A (en) * | 1992-08-06 | 1997-12-02 | The Texas A&M University System | Calcium hydroxide pretreatment of biomass |
| JP2000507317A (ja) * | 1996-03-26 | 2000-06-13 | シユンドス・デフイブラトール・インダストリーズ・アクテイエボラーグ | 二工程での酸素によるパルプの脱リグニン |
| SE510740C2 (sv) * | 1996-11-26 | 1999-06-21 | Sunds Defibrator Ind Ab | Styrning av syrgasdelignifiering |
| US7297225B2 (en) * | 2004-06-22 | 2007-11-20 | Georgia-Pacific Consumer Products Lp | Process for high temperature peroxide bleaching of pulp with cool discharge |
| WO2007104128A1 (en) * | 2006-03-13 | 2007-09-20 | Fp Innovations | Near-neutral chlorine dioxide bleaching of pulp |
| JP2007282597A (ja) * | 2006-04-19 | 2007-11-01 | Ihi Corp | 木質バイオマスの可溶化方法 |
| FI20070126A0 (fi) * | 2006-09-08 | 2007-02-13 | Linde Ag | Menetelmä hartsin poistamiseksi massasta ja hiilidioksidin tai (bi)karbonaatin käyttö tähän tarkoitukseen |
| US8715969B2 (en) * | 2008-11-20 | 2014-05-06 | E I Du Pont De Nemours And Company | Delignification of biomass with sequential base treatment |
| US8591702B2 (en) | 2008-12-08 | 2013-11-26 | Fpinnovations | Increasing alkaline pulping yield for softwood with metal ions |
| EP2694723A1 (en) | 2011-04-01 | 2014-02-12 | University of Limerick | Lignocellulose processing |
| US9133278B2 (en) * | 2012-02-13 | 2015-09-15 | Bp Corporation North America Inc. | Methods for detoxifying a lignocellulosic hydrolysate |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA694720A (en) * | 1964-09-22 | G. Gillaspie Athey | Method of bleaching cellulosic pulps | |
| US2147618A (en) * | 1936-04-01 | 1939-02-14 | West Virginia Pulp & Paper Com | Method of bleaching pulp |
| CA553349A (en) * | 1950-10-04 | 1958-02-18 | C. Harris George | Pulping process |
| US2926114A (en) * | 1957-08-12 | 1960-02-23 | Kimberly Clark Co | Manufacture of cellulosic products |
| CA632280A (en) * | 1958-07-02 | 1961-12-05 | Kimberly-Clark Corporation | Manufacture of bleached cellulosic products resistant to brightness reversion |
| US3251730A (en) * | 1960-07-14 | 1966-05-17 | Watanabe Sadayoshi | Process for the purification of a pulp by oxidation with oxygen |
| FI45574C (fi) * | 1970-05-11 | 1972-07-10 | Kymin Oy Kymmene Ab | Menetelmä selluloosapitoisten aineiden valkaisemiseksi. |
| SE355614B (US07489958-20090210-P00001.png) * | 1970-05-13 | 1973-04-30 | Mo Och Domsjoe Ab | |
| SE343092B (US07489958-20090210-P00001.png) * | 1970-06-22 | 1972-02-28 | Mo Och Domsjoe Ab |
-
1972
- 1972-12-19 SE SE7216651A patent/SE373395B/xx unknown
-
1973
- 1973-10-19 CH CH1483073A patent/CH589173A5/xx not_active IP Right Cessation
- 1973-10-31 FI FI3374/73A patent/FI54940C/fi active
- 1973-11-09 NO NO4319/73A patent/NO141568C/no unknown
- 1973-11-22 IT IT70437/73A patent/IT999801B/it active
- 1973-12-06 ZA ZA00739305A patent/ZA739305B/xx unknown
- 1973-12-07 JP JP48139242A patent/JPS5113761B2/ja not_active Expired
- 1973-12-07 GB GB5689573A patent/GB1443765A/en not_active Expired
- 1973-12-12 FR FR7344359A patent/FR2210696B1/fr not_active Expired
- 1973-12-12 US US05/424,148 patent/US3944463A/en not_active Expired - Lifetime
- 1973-12-13 CA CA188,150A patent/CA1007406A/en not_active Expired
- 1973-12-14 AT AT1048473A patent/AT331117B/de not_active IP Right Cessation
- 1973-12-17 BR BR9862/73A patent/BR7309862D0/pt unknown
Also Published As
| Publication number | Publication date |
|---|---|
| AT331117B (de) | 1976-08-10 |
| NO141568C (no) | 1980-04-08 |
| JPS4987801A (US07489958-20090210-P00001.png) | 1974-08-22 |
| FI54940C (fi) | 1979-04-10 |
| ATA1048473A (de) | 1975-10-15 |
| CH589173A5 (US07489958-20090210-P00001.png) | 1977-06-30 |
| CA1007406A (en) | 1977-03-29 |
| US3944463A (en) | 1976-03-16 |
| NO141568B (no) | 1979-12-27 |
| JPS5113761B2 (US07489958-20090210-P00001.png) | 1976-05-04 |
| IT999801B (it) | 1976-03-10 |
| FR2210696A1 (US07489958-20090210-P00001.png) | 1974-07-12 |
| SE373395B (sv) | 1975-02-03 |
| DE2362438B2 (de) | 1975-11-27 |
| GB1443765A (en) | 1976-07-28 |
| FR2210696B1 (US07489958-20090210-P00001.png) | 1976-05-07 |
| DE2362438A1 (de) | 1974-07-04 |
| BR7309862D0 (pt) | 1974-08-15 |
| FI54940B (fi) | 1978-12-29 |
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