AT384252B - Verfahren zum delignifizierenden bleichen von cellulosemassen - Google Patents
Verfahren zum delignifizierenden bleichen von cellulosemassenInfo
- Publication number
- AT384252B AT384252B AT0418483A AT418483A AT384252B AT 384252 B AT384252 B AT 384252B AT 0418483 A AT0418483 A AT 0418483A AT 418483 A AT418483 A AT 418483A AT 384252 B AT384252 B AT 384252B
- Authority
- AT
- Austria
- Prior art keywords
- masses
- cellulose
- delignifying bleaching
- delignifying
- 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
- D21C9/1005—Pretreatment of the pulp, e.g. degassing the pulp
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Investigating Or Analysing Biological Materials (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8206859A SE434283B (sv) | 1982-12-01 | 1982-12-01 | Forfarande for delignifiering av cellulosamassa med kveveoxider och syrgas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ATA418483A ATA418483A (de) | 1987-03-15 |
| AT384252B true AT384252B (de) | 1987-10-27 |
Family
ID=20348818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT0418483A AT384252B (de) | 1982-12-01 | 1983-11-30 | Verfahren zum delignifizierenden bleichen von cellulosemassen |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US4602982A (de) |
| JP (1) | JPS59106592A (de) |
| AT (1) | AT384252B (de) |
| AU (1) | AU560978B2 (de) |
| CA (1) | CA1205959A (de) |
| DE (1) | DE3343403A1 (de) |
| FI (1) | FI73018C (de) |
| FR (1) | FR2537176B1 (de) |
| NO (1) | NO162920C (de) |
| NZ (1) | NZ205971A (de) |
| SE (1) | SE434283B (de) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2005369A1 (en) * | 1988-12-20 | 1990-06-20 | Madhusudan D. Jayawant | Process for improved alkaline oxidative delignification of cellulose pulp |
| US4995983A (en) * | 1990-03-21 | 1991-02-26 | Macmillan Bloedel Limited | Membrane separation process |
| FI98537C (fi) * | 1993-10-20 | 1997-07-10 | Enso Gutzeit Oy | Menetelmä valkolipeässä olevan natriumhydroksidin erottamiseksi |
| FI96387C (fi) * | 1994-09-19 | 2001-12-03 | Kvaerner Pulping Oy | Menetelmä typen oksidien poistamiseksi sellutehtaan savukaasuista |
| WO2004106624A1 (en) * | 2003-06-03 | 2004-12-09 | Pacific Pulp Resources Inc. | Method for producing pulp and lignin |
| RU2383675C1 (ru) * | 2005-12-07 | 2010-03-10 | Келли Энтони О`ФЛИНН | Осуществляемый в каталитическом реакторе процесс производства промышленной целлюлозной массы, нативного лигнина и одноклеточного белка |
| US8663427B2 (en) * | 2011-04-07 | 2014-03-04 | International Paper Company | Addition of endothermic fire retardants to provide near neutral pH pulp fiber webs |
| WO2012018749A1 (en) | 2010-08-03 | 2012-02-09 | International Paper Company | Fire retardant treated fluff pulp web and process for making same |
| US8388807B2 (en) | 2011-02-08 | 2013-03-05 | International Paper Company | Partially fire resistant insulation material comprising unrefined virgin pulp fibers and wood ash fire retardant component |
| GB201414829D0 (en) * | 2014-08-20 | 2014-10-01 | Univ St Andrews | Lignin processing |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3122297A1 (de) * | 1980-06-05 | 1982-04-01 | Mo och Domsjö AB, 89101 Örnsköldsvik | Verfahren zur ligninentfernung |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1040198A (en) * | 1909-01-28 | 1912-10-01 | Charles Hartman | Belt-tension regulator for ice-cutting machines. |
| US1829852A (en) * | 1928-12-13 | 1931-11-03 | Cornstalk Products Company Inc | Manufacture of cellulose from straw |
| US1923292A (en) * | 1931-08-31 | 1933-08-22 | Harry P Bassett | Purification of cellulose material |
| DE681149C (de) * | 1936-04-24 | 1939-09-18 | I G Farbenindustrie Akt Ges | Verfahren zur Gewinnung von Zellstoff |
| US4076579A (en) * | 1973-08-06 | 1978-02-28 | The Regents Of The University Of California | Pulping of lignocellulosic material by sequential treatment thereof with nitric oxide and oxygen |
| SE445122B (sv) * | 1980-12-17 | 1986-06-02 | Mo Och Domsjoe Ab | Forfarande for delignifiering av cellulosamassa i nervaro av kvevedioxid |
| SE448006B (sv) * | 1981-09-21 | 1987-01-12 | Mo Och Domsjoe Ab | Forfarande for blekning av cellulosamassa innefattande ett aktiveringssteg med kveveoxider |
-
1982
- 1982-12-01 SE SE8206859A patent/SE434283B/sv not_active IP Right Cessation
-
1983
- 1983-10-14 NZ NZ205971A patent/NZ205971A/en unknown
- 1983-10-31 AU AU20858/83A patent/AU560978B2/en not_active Ceased
- 1983-11-18 JP JP58218567A patent/JPS59106592A/ja active Granted
- 1983-11-30 FI FI834382A patent/FI73018C/fi not_active IP Right Cessation
- 1983-11-30 FR FR8319086A patent/FR2537176B1/fr not_active Expired
- 1983-11-30 DE DE19833343403 patent/DE3343403A1/de active Granted
- 1983-11-30 US US06/556,498 patent/US4602982A/en not_active Expired - Lifetime
- 1983-11-30 AT AT0418483A patent/AT384252B/de not_active IP Right Cessation
- 1983-11-30 NO NO834407A patent/NO162920C/no not_active IP Right Cessation
- 1983-12-01 CA CA000442360A patent/CA1205959A/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3122297A1 (de) * | 1980-06-05 | 1982-04-01 | Mo och Domsjö AB, 89101 Örnsköldsvik | Verfahren zur ligninentfernung |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2537176B1 (fr) | 1988-06-17 |
| FR2537176A1 (fr) | 1984-06-08 |
| US4602982A (en) | 1986-07-29 |
| JPS642715B2 (de) | 1989-01-18 |
| CA1205959A (en) | 1986-06-17 |
| FI73018B (fi) | 1987-04-30 |
| AU560978B2 (en) | 1987-04-30 |
| FI73018C (fi) | 1987-08-10 |
| DE3343403A1 (de) | 1984-06-07 |
| FI834382A (fi) | 1984-06-02 |
| NO834407L (no) | 1984-06-04 |
| NZ205971A (en) | 1987-01-23 |
| JPS59106592A (ja) | 1984-06-20 |
| NO162920B (no) | 1989-11-27 |
| DE3343403C2 (de) | 1989-04-27 |
| SE434283B (sv) | 1984-07-16 |
| AU2085883A (en) | 1984-06-07 |
| NO162920C (no) | 1990-03-07 |
| SE8206859D0 (sv) | 1982-12-01 |
| SE8206859L (sv) | 1984-06-02 |
| ATA418483A (de) | 1987-03-15 |
| FI834382A0 (fi) | 1983-11-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EIH | Change in the person of patent owner | ||
| ELJ | Ceased due to non-payment of the annual fee |