SE9903416L - Process for the preparation of chemical pulp - Google Patents

Process for the preparation of chemical pulp

Info

Publication number
SE9903416L
SE9903416L SE9903416A SE9903416A SE9903416L SE 9903416 L SE9903416 L SE 9903416L SE 9903416 A SE9903416 A SE 9903416A SE 9903416 A SE9903416 A SE 9903416A SE 9903416 L SE9903416 L SE 9903416L
Authority
SE
Sweden
Prior art keywords
chemical pulp
preparation
liquid containing
process liquid
hydroxide ions
Prior art date
Application number
SE9903416A
Other languages
Swedish (sv)
Other versions
SE9903416D0 (en
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 SE9903416A priority Critical patent/SE9903416L/en
Publication of SE9903416D0 publication Critical patent/SE9903416D0/en
Publication of SE9903416L publication Critical patent/SE9903416L/en

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
    • D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)

Abstract

The cooking liquid has a low concentration of added hydroxide ions. - A method for preparing chemical pulp, in which the wood is treated with a process liquid containing calcium ions, comprises the use of a process liquid containing added hydroxide ions in a concentration less than 0.25 M prior to treatment.
SE9903416A 1999-09-22 1999-09-22 Process for the preparation of chemical pulp SE9903416L (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE9903416A SE9903416L (en) 1999-09-22 1999-09-22 Process for the preparation of chemical pulp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9903416A SE9903416L (en) 1999-09-22 1999-09-22 Process for the preparation of chemical pulp

Publications (2)

Publication Number Publication Date
SE9903416D0 SE9903416D0 (en) 1999-09-22
SE9903416L true SE9903416L (en) 2001-03-23

Family

ID=20417100

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9903416A SE9903416L (en) 1999-09-22 1999-09-22 Process for the preparation of chemical pulp

Country Status (1)

Country Link
SE (1) SE9903416L (en)

Also Published As

Publication number Publication date
SE9903416D0 (en) 1999-09-22

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