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DE302075T1 - METHOD FOR REDUCING ENERGY CONSUMPTION IN REFINING CELLULOSE CONTAINING MATERIALS. - Google Patents

METHOD FOR REDUCING ENERGY CONSUMPTION IN REFINING CELLULOSE CONTAINING MATERIALS.

Info

Publication number
DE302075T1
DE302075T1 DE1987902828 DE87902828T DE302075T1 DE 302075 T1 DE302075 T1 DE 302075T1 DE 1987902828 DE1987902828 DE 1987902828 DE 87902828 T DE87902828 T DE 87902828T DE 302075 T1 DE302075 T1 DE 302075T1
Authority
DE
Germany
Prior art keywords
energy consumption
reducing energy
containing materials
cellulose containing
alkali
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
DE1987902828
Other languages
German (de)
Inventor
Ossian Per S-183 41 Taeby Engstrand
Lars-Ake S-123 44 Farsta Hammar
Thoung Myat S-162 24 Vaellingby Htun
Lennart Rune S-112 47 Stockholm Pettersson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
STFI Skogsindustrins Tekniska Forskningsinstitut AB
Original Assignee
STFI Skogsindustrins Tekniska Forskningsinstitut 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
Priority claimed from SE8601779A external-priority patent/SE456826B/en
Application filed by STFI Skogsindustrins Tekniska Forskningsinstitut AB filed Critical STFI Skogsindustrins Tekniska Forskningsinstitut AB
Publication of DE302075T1 publication Critical patent/DE302075T1/en
Pending legal-status Critical Current

Links

Landscapes

  • Paper (AREA)
  • Processing Of Solid Wastes (AREA)

Claims (1)

EP 87 902 828.0-2304 25. Januar 1989EP 87 902 828.0-2304 25 January 1989 STFI ■ 14/90/baSTFI ■ 14/90/ba PATENTANSPRUCHPATENT CLAIM Verfahren zur Verminderung des Energieverbrauchs beim Refining/Aufschlagen von Cellulose enthaltendem Material auf vorherbestimmte Festigkeitseigenschaften mit einem verminderten Gehalt an Pflanzenresten bzw. -schaben und Harz durch Zugabe von Alkali zu dem Material zur Neutralisation der an die Faserwand gebundenen sauren Gruppen, wobei das Alkali zu dem Material in der Refi&eegr;ing-Zone , oder unmittel bar bevor das Material in die Refining-Zone eintritt, zugegeben wird, dadurch gekennzeichnet, daß das Alkali als Natriumhydroxid in einer Menge von 0,5 bis 9 kg je Tonne, vorzugsweise 1 bis 4 kg je Tonne, für die Neutralisation ohne Überschuß zugegeben wird.A method for reducing energy consumption during refining/beating cellulose-containing material to predetermined strength properties with a reduced content of plant residues or shavings and resin by adding alkali to the material to neutralize the acidic groups bound to the fiber wall, wherein the alkali is added to the material in the refining zone or immediately before the material enters the refining zone, characterized in that the alkali is added as sodium hydroxide in an amount of 0.5 to 9 kg per tonne, preferably 1 to 4 kg per tonne, for neutralization without excess.
DE1987902828 1986-04-18 1987-04-15 METHOD FOR REDUCING ENERGY CONSUMPTION IN REFINING CELLULOSE CONTAINING MATERIALS. Pending DE302075T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8601779A SE456826B (en) 1986-04-18 1986-04-18 SET TO REDUCE ENERGY CONSUMPTION BY REFINING CELLULOSALLY MATERIAL
PCT/SE1987/000193 WO1987006280A1 (en) 1986-04-18 1987-04-15 Method of reducing the energy consumption at the refining of cellulose-containing material

Publications (1)

Publication Number Publication Date
DE302075T1 true DE302075T1 (en) 1989-05-11

Family

ID=26659342

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1987902828 Pending DE302075T1 (en) 1986-04-18 1987-04-15 METHOD FOR REDUCING ENERGY CONSUMPTION IN REFINING CELLULOSE CONTAINING MATERIALS.

Country Status (2)

Country Link
DE (1) DE302075T1 (en)
NO (1) NO164851C (en)

Also Published As

Publication number Publication date
NO164851C (en) 1990-11-21
NO875281L (en) 1987-12-17
NO875281D0 (en) 1987-12-17
NO164851B (en) 1990-08-13

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