SE9903417D0 - A process for the production of sulphate pulp - Google Patents

A process for the production of sulphate pulp

Info

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
Application number
SE9903417A
Other languages
Swedish (sv)
Inventor
Disa Tormund
Fredrik Berthold
Leelo Olm
Mikael Lindstroem
Original Assignee
Skogsind Tekn Foskningsinst
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Skogsind Tekn Foskningsinst filed Critical Skogsind Tekn Foskningsinst
Priority to SE9903417A priority Critical patent/SE9903417D0/en
Publication of SE9903417D0 publication Critical patent/SE9903417D0/en
Priority to AU76961/00A priority patent/AU7696100A/en
Priority to PCT/SE2000/001824 priority patent/WO2001021882A1/en

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  • 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.
SE9903417A 1999-09-22 1999-09-22 A process for the production of sulphate pulp SE9903417D0 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE309530B (en) * 1966-12-23 1969-03-24 J Bergstroem

Also Published As

Publication number Publication date
WO2001021882A1 (en) 2001-03-29
AU7696100A (en) 2001-04-24

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