SE8902722L - METHOD FOR CONTROLING AN ALKALIC CELLULOS COOKING - Google Patents

METHOD FOR CONTROLING AN ALKALIC CELLULOS COOKING

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 ( )
Swedish (sv)
Other versions
SE8902722D0 (en
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/en
Publication of SE8902722L publication Critical patent/SE8902722L/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
    • D21C3/22—Other features of pulping processes
    • D21C3/228—Automation of the pulping processes

Landscapes

  • Paper (AREA)

Abstract

In the control of alkali (esp. sulphate and caustic soda) digestion of cellulosic material, the novelty is that the volatile acids, formed during lignin decompsn., are analysed and the time required to achieve the desired digestion level is determd. on the basis of the concn. ratio of the volatile acids reporting in the waste liquor. ADVANTAGE - The digestion process control is easily carried out and improved conformity with the desired digestion level is achieved.
SE8902722A 1988-08-17 1989-08-11 METHOD FOR CONTROLING AN ALKALIC CELLULOS COOKING SE8902722L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI883818A FI80731C (en) 1988-08-17 1988-08-17 FOERFARANDE FOER STYRNING AV ALKALISK CELLULOSAKOK.

Publications (2)

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

Family

ID=8526931

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8902722A SE8902722L (en) 1988-08-17 1989-08-11 METHOD FOR CONTROLING AN ALKALIC CELLULOS COOKING

Country Status (4)

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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI893830A (en) * 1989-08-14 1991-02-15 Kajaani Elektroniikka Oy FOERFARANDE FOER STYRNING AV SYRGAS -ALKALI BLEKNING.
EP0445321B1 (en) * 1990-03-05 1994-06-01 Siemens Aktiengesellschaft Process for making pulp in a continuous digester

Also Published As

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

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