FI46271C - Tapa pienentää hartsipitoisuutta keitettäessä alkaalisesti puuta, edul lisesti lehtipuuta. - Google Patents

Tapa pienentää hartsipitoisuutta keitettäessä alkaalisesti puuta, edul lisesti lehtipuuta.

Info

Publication number
FI46271C
FI46271C FI661177A FI117766A FI46271C FI 46271 C FI46271 C FI 46271C FI 661177 A FI661177 A FI 661177A FI 117766 A FI117766 A FI 117766A FI 46271 C FI46271 C FI 46271C
Authority
FI
Finland
Prior art keywords
wood
reducing
resin content
alkaline boiling
preferably hardwood
Prior art date
Application number
FI661177A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI46271B (enrdf_load_stackoverflow
Inventor
Gaertner
Kolosh
Original Assignee
Mo Och Domsjoe Ab
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 Mo Och Domsjoe Ab filed Critical Mo Och Domsjoe Ab
Application granted granted Critical
Publication of FI46271B publication Critical patent/FI46271B/fi
Publication of FI46271C publication Critical patent/FI46271C/fi

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
    • D21C1/06—Pretreatment of the finely-divided materials before digesting with alkaline reacting compounds
    • 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
    • D21C9/08—Removal of fats, resins, pitch or waxes; Chemical or physical purification, i.e. refining, of crude cellulose by removing non-cellulosic contaminants, optionally combined with bleaching
    • D21C9/086—Removal of fats, resins, pitch or waxes; Chemical or physical purification, i.e. refining, of crude cellulose by removing non-cellulosic contaminants, optionally combined with bleaching with organic compounds or compositions comprising organic compounds

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
FI661177A 1965-05-06 1966-05-05 Tapa pienentää hartsipitoisuutta keitettäessä alkaalisesti puuta, edul lisesti lehtipuuta. FI46271C (fi)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE5960/65A SE311468B (enrdf_load_stackoverflow) 1965-05-06 1965-05-06

Publications (2)

Publication Number Publication Date
FI46271B FI46271B (enrdf_load_stackoverflow) 1972-10-31
FI46271C true FI46271C (fi) 1973-02-12

Family

ID=20267609

Family Applications (1)

Application Number Title Priority Date Filing Date
FI661177A FI46271C (fi) 1965-05-06 1966-05-05 Tapa pienentää hartsipitoisuutta keitettäessä alkaalisesti puuta, edul lisesti lehtipuuta.

Country Status (2)

Country Link
FI (1) FI46271C (enrdf_load_stackoverflow)
SE (1) SE311468B (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI121382B (fi) 2002-12-23 2010-10-29 Arizona Chemical B V Puunkeiton apuaine, sen valmistus ja käyttö
FI122689B (fi) * 2003-06-05 2012-05-31 Forchem Oy Menetelmä uuteaineiden poistamiseksi selluloosamassasta

Also Published As

Publication number Publication date
SE311468B (enrdf_load_stackoverflow) 1969-06-09
FI46271B (enrdf_load_stackoverflow) 1972-10-31

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