SE8800713L - Saett vid framstaellning av cellulosamassa - Google Patents
Saett vid framstaellning av cellulosamassaInfo
- Publication number
- SE8800713L SE8800713L SE8800713A SE8800713A SE8800713L SE 8800713 L SE8800713 L SE 8800713L SE 8800713 A SE8800713 A SE 8800713A SE 8800713 A SE8800713 A SE 8800713A SE 8800713 L SE8800713 L SE 8800713L
- Authority
- SE
- Sweden
- Prior art keywords
- cellulosamas
- preparation
- treatment
- sulphur dioxide
- 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
- D21C1/00—Pretreatment of the finely-divided materials before digesting
- D21C1/04—Pretreatment of the finely-divided materials before digesting with acid reacting compounds
Landscapes
- Paper (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8800713A SE466964B (sv) | 1988-03-01 | 1988-03-01 | Foerbehandling av flis medelst svaveldioxid vid framstaellning av sulfatmassa |
AU29330/89A AU2933089A (en) | 1988-03-01 | 1988-12-27 | Process for the pre-treatment of chips |
PCT/SE1988/000702 WO1989008165A1 (en) | 1988-03-01 | 1988-12-27 | Process for the pre-treatment of chips |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8800713A SE466964B (sv) | 1988-03-01 | 1988-03-01 | Foerbehandling av flis medelst svaveldioxid vid framstaellning av sulfatmassa |
Publications (3)
Publication Number | Publication Date |
---|---|
SE8800713D0 SE8800713D0 (sv) | 1988-03-01 |
SE8800713L true SE8800713L (sv) | 1989-09-02 |
SE466964B SE466964B (sv) | 1992-05-04 |
Family
ID=20371539
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8800713A SE466964B (sv) | 1988-03-01 | 1988-03-01 | Foerbehandling av flis medelst svaveldioxid vid framstaellning av sulfatmassa |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU2933089A (sv) |
SE (1) | SE466964B (sv) |
WO (1) | WO1989008165A1 (sv) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1130155A1 (en) * | 2000-03-01 | 2001-09-05 | Akzo Nobel N.V. | Pulping process |
CA2399723A1 (en) * | 2000-02-09 | 2001-08-16 | Akzo Nobel N.V. | Pulping process |
US6752904B2 (en) | 2000-02-09 | 2004-06-22 | Akzo Nobel N.V. | Process for removal of lignin from lignocellulosic material |
WO2019090414A1 (en) | 2017-11-09 | 2019-05-16 | Iogen Corporation | Low temperature pretreatment with sulfur dioxide |
CA3078822A1 (en) | 2017-11-09 | 2019-05-16 | Iogen Corporation | Low temperature sulfur dioxide pretreatment |
EP3775243A4 (en) | 2018-04-06 | 2022-02-09 | Iogen Corporation | PRE-TREATMENT WITH LIGNOSULFONIC ACID |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2190194A (en) * | 1936-10-28 | 1940-02-13 | Brown Co | Chemical pulping of raw cellulosic material |
US4211605A (en) * | 1978-08-03 | 1980-07-08 | Canadian International Paper Company | High yield chemimechanical pulping processes |
-
1988
- 1988-03-01 SE SE8800713A patent/SE466964B/sv not_active IP Right Cessation
- 1988-12-27 WO PCT/SE1988/000702 patent/WO1989008165A1/en unknown
- 1988-12-27 AU AU29330/89A patent/AU2933089A/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
SE466964B (sv) | 1992-05-04 |
AU2933089A (en) | 1989-09-22 |
WO1989008165A1 (en) | 1989-09-08 |
SE8800713D0 (sv) | 1988-03-01 |
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Legal Events
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