SE8902722L - Metod foer styrning av en alkalisk cellulosakokning - Google Patents

Metod foer styrning av en alkalisk cellulosakokning

Info

Publication number
SE8902722L
SE8902722L SE8902722A SE8902722A SE8902722L SE 8902722 L SE8902722 L SE 8902722L SE 8902722 A SE8902722 A SE 8902722A SE 8902722 A SE8902722 A SE 8902722A SE 8902722 L SE8902722 L SE 8902722L
Authority
SE
Sweden
Prior art keywords
digestion
alkalic
cellulos
controling
cooking
Prior art date
Application number
SE8902722A
Other languages
Unknown language ( )
English (en)
Swedish (sv)
Other versions
SE8902722D0 (sv
Inventor
R Alen
Original Assignee
Kajaani Electronics
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 Kajaani Electronics filed Critical Kajaani Electronics
Publication of SE8902722D0 publication Critical patent/SE8902722D0/xx
Publication of SE8902722L publication Critical patent/SE8902722L/

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
    • D21C3/22—Other features of pulping processes
    • D21C3/228—Automation of the pulping processes

Landscapes

  • Paper (AREA)
SE8902722A 1988-08-17 1989-08-11 Metod foer styrning av en alkalisk cellulosakokning SE8902722L (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI883818A FI80731C (fi) 1988-08-17 1988-08-17 Foerfarande foer styrning av alkalisk cellulosakok.

Publications (2)

Publication Number Publication Date
SE8902722D0 SE8902722D0 (sv) 1989-08-11
SE8902722L true SE8902722L (sv) 1990-02-18

Family

ID=8526931

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8902722A SE8902722L (sv) 1988-08-17 1989-08-11 Metod foer styrning av en alkalisk cellulosakokning

Country Status (4)

Country Link
JP (1) JPH0299679A (fi)
DE (1) DE3927183A1 (fi)
FI (1) FI80731C (fi)
SE (1) SE8902722L (fi)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI893830A (fi) * 1989-08-14 1991-02-15 Kajaani Elektroniikka Oy Foerfarande foer styrning av syrgas -alkali blekning.
DE59005944D1 (de) * 1990-03-05 1994-07-07 Siemens Ag Verfahren zur Herstellung von Zellstoff in einem kontinuierlichen Kocher.

Also Published As

Publication number Publication date
FI883818A0 (fi) 1988-08-17
JPH0299679A (ja) 1990-04-11
SE8902722D0 (sv) 1989-08-11
FI80731C (fi) 1990-07-10
FI80731B (fi) 1990-03-30
DE3927183A1 (de) 1990-02-22

Similar Documents

Publication Publication Date Title
EP0415149A3 (en) Process for bleaching and delignification of lignocellulosic materials
US5002635A (en) Method for producing pulp using pre-treatment with stabilizers and refining
FR2457339B1 (fi)
SE8504236L (sv) Forbettrad oxidativ extraktion
DE69912128D1 (de) Verfahren zur herstellung lignocellulosehaltiger pulpe aus nicht holzartigem material
ATE107376T1 (de) Zellstoffkochen mit hoher sulfidität, durch sulfonierung von gedämpften holzspänen mit schwarzlauge.
SE8904313D0 (sv) Vaeteperoxid-blekningsprocess
ATE48290T1 (de) Verfahren zur delignifizierung und bleiche von zellstoffen.
NO803144L (no) Fremgangsmaate til gjenvinningsbehandling av avfallspapir
ATE130388T1 (de) Verfahren zum bleichen von mechanischem holzstoff.
SE8304973D0 (sv) Forfarande for framstellning av kokvetska for kraftmassakokning
ES8704569A1 (es) Procedimiento de disgregacion con sulfito para la preparacion de celulosa a partir de materiales que contienen lignocelulosa con recuperacion de los productos quimicos de disgregacion
ATE138129T1 (de) Diskontinuierliches verfahren zur herstellung von kraft-zellstoffen
FI843766A0 (fi) Foerfarande foer tillvaratagande av lignin ur alkaliska ligninloesningar.
SE8902722L (sv) Metod foer styrning av en alkalisk cellulosakokning
SE8504083L (sv) Metod for tillverkning av cellulosamassa
DE69111098D1 (de) Verfahren zur Herstellung von gebleichtem Zellstoff mit hoher Ausbeute.
SE8200756L (sv) Sett att framstella kemimekanisk pappersmassa
FR2298642A1 (fr) Production de pate a papier mecanique blanchie a
SE8604852L (sv) Delignifiering och blekning av en cellulosamassa med en alkali-syre-hypokloritextraktion
GB2005743A (en) A process for the production of softwood pulp for chemical further processing and for special papers
SE7314127L (fi)
DE3274887D1 (en) A method of polysulphide treatment in alkaline pulping of lignocellulose material
SE9002039D0 (sv) Saett att framstaella massa
GB1071666A (en) Improved process for making newsprint

Legal Events

Date Code Title Description
NAV Patent application has lapsed

Ref document number: 8902722-1

Effective date: 19910718

Format of ref document f/p: F