SE9903417D0 - A process for the production of sulphate pulp - Google Patents
A process for the production of sulphate pulpInfo
- Publication number
- SE9903417D0 SE9903417D0 SE9903417A SE9903417A SE9903417D0 SE 9903417 D0 SE9903417 D0 SE 9903417D0 SE 9903417 A SE9903417 A SE 9903417A SE 9903417 A SE9903417 A SE 9903417A SE 9903417 D0 SE9903417 D0 SE 9903417D0
- Authority
- SE
- Sweden
- Prior art keywords
- production
- cooking liquor
- sulphate pulp
- essentially
- polysulphide
- Prior art date
Links
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Paper (AREA)
Abstract
A process for the production of chemical pulp, in which wood is treated with a cooking liquor essentially not containing any polysulphide, and in which, prior to the treatment, the cooking liquor does essentially not contain any carbonate, and the concentration of added hydroxide ions in the cooking liquor is < 0.2 M, and that the cooking liquor also contains anthraquinone and/or derivatives thereof.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9903417A SE9903417D0 (en) | 1999-09-22 | 1999-09-22 | A process for the production of sulphate pulp |
AU76961/00A AU7696100A (en) | 1999-09-22 | 2000-09-20 | A process for the production of sulphate pulp |
PCT/SE2000/001824 WO2001021882A1 (en) | 1999-09-22 | 2000-09-20 | A process for the production of sulphate pulp |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9903417A SE9903417D0 (en) | 1999-09-22 | 1999-09-22 | A process for the production of sulphate pulp |
Publications (1)
Publication Number | Publication Date |
---|---|
SE9903417D0 true SE9903417D0 (en) | 1999-09-22 |
Family
ID=20417101
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9903417A SE9903417D0 (en) | 1999-09-22 | 1999-09-22 | A process for the production of sulphate pulp |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU7696100A (en) |
SE (1) | SE9903417D0 (en) |
WO (1) | WO2001021882A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2318027C (en) | 1999-09-13 | 2008-07-08 | Andritz-Ahlstrom Inc. | Treating pulp with yield or strength-enhancing additive |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE309530B (en) * | 1966-12-23 | 1969-03-24 | J Bergstroem |
-
1999
- 1999-09-22 SE SE9903417A patent/SE9903417D0/en unknown
-
2000
- 2000-09-20 AU AU76961/00A patent/AU7696100A/en not_active Abandoned
- 2000-09-20 WO PCT/SE2000/001824 patent/WO2001021882A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
WO2001021882A1 (en) | 2001-03-29 |
AU7696100A (en) | 2001-04-24 |
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