FI884920A - Foerfarande foer behandling av avfallsvatten fraon traefoeraedlingsindustrins massaframstaellningsprocesser. - Google Patents

Foerfarande foer behandling av avfallsvatten fraon traefoeraedlingsindustrins massaframstaellningsprocesser. Download PDF

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Publication number
FI884920A
FI884920A FI884920A FI884920A FI884920A FI 884920 A FI884920 A FI 884920A FI 884920 A FI884920 A FI 884920A FI 884920 A FI884920 A FI 884920A FI 884920 A FI884920 A FI 884920A
Authority
FI
Finland
Prior art keywords
traefoeraedlingsindustrins
massaframstaellningsprocesser
avfallsvatten
fraon
foerfarande foer
Prior art date
Application number
FI884920A
Other languages
English (en)
Other versions
FI81396B (fi
FI884920A0 (fi
FI81396C (fi
Inventor
Olli Korhonen
Juhani Orivuori
Original Assignee
Enso Gutzeit Oy
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 Enso Gutzeit Oy filed Critical Enso Gutzeit Oy
Priority to FI884920A priority Critical patent/FI81396C/fi
Publication of FI884920A0 publication Critical patent/FI884920A0/fi
Priority to CA002001270A priority patent/CA2001270A1/en
Priority to US07/425,902 priority patent/US5022962A/en
Priority to SE8903549A priority patent/SE500390C2/sv
Publication of FI884920A publication Critical patent/FI884920A/fi
Publication of FI81396B publication Critical patent/FI81396B/fi
Application granted granted Critical
Publication of FI81396C publication Critical patent/FI81396C/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
    • 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
    • D21C9/02—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents
    • 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
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/0014—Combination of various pulping processes with one or several recovery systems (cross-recovery)

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Processing Of Solid Wastes (AREA)
FI884920A 1988-10-25 1988-10-25 Foerfarande foer behandling av avfallsvatten fraon traefoeraedlingsindustrins massaframstaellningsprocesser. FI81396C (fi)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FI884920A FI81396C (fi) 1988-10-25 1988-10-25 Foerfarande foer behandling av avfallsvatten fraon traefoeraedlingsindustrins massaframstaellningsprocesser.
CA002001270A CA2001270A1 (en) 1988-10-25 1989-10-24 Method for the treatment of spent liquers in pulp production processes in the wood-processing industry
US07/425,902 US5022962A (en) 1988-10-25 1989-10-24 Method for the treatment of spent liquors in pulp production
SE8903549A SE500390C2 (sv) 1988-10-25 1989-10-25 Tillvaratagande av avloppsvatten från mekanisk massaframställning i den kemiska kokprocessens tvättsteg

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI884920 1988-10-25
FI884920A FI81396C (fi) 1988-10-25 1988-10-25 Foerfarande foer behandling av avfallsvatten fraon traefoeraedlingsindustrins massaframstaellningsprocesser.

Publications (4)

Publication Number Publication Date
FI884920A0 FI884920A0 (fi) 1988-10-25
FI884920A true FI884920A (fi) 1990-04-26
FI81396B FI81396B (fi) 1990-06-29
FI81396C FI81396C (fi) 1990-10-10

Family

ID=8527251

Family Applications (1)

Application Number Title Priority Date Filing Date
FI884920A FI81396C (fi) 1988-10-25 1988-10-25 Foerfarande foer behandling av avfallsvatten fraon traefoeraedlingsindustrins massaframstaellningsprocesser.

Country Status (4)

Country Link
US (1) US5022962A (fi)
CA (1) CA2001270A1 (fi)
FI (1) FI81396C (fi)
SE (1) SE500390C2 (fi)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE501613C2 (sv) * 1993-08-03 1995-03-27 Kvaerner Pulping Tech Sätt vid integrering av blekning och återvinning vid framställning av massa
FI110580B (fi) * 2001-05-09 2003-02-28 V & K Consulting Avoin Yhtioe Menetelmä kuidun sekä kuitupohjaisen kiintoaineen talteenottamiseksi sekä rasvaliukoisten uuteaineiden erottamiseksi
US20030000661A1 (en) * 2001-06-22 2003-01-02 Henricson Kaj O. Removal of water-soluble compounds from wood chips prior to cooking
CN116732800A (zh) * 2023-05-08 2023-09-12 上海昶法新材料有限公司 一种秸秆化机浆和制浆废液的制备方法及其应用

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4060450A (en) * 1972-09-01 1977-11-29 Westinghouse Electric Corporation High yield saturating paper
US4073678A (en) * 1973-04-16 1978-02-14 Westvaco Corporation High yield semichemical wood pulping process
US3873412A (en) * 1974-04-01 1975-03-25 Bauer Bros Co Mechanically refining a mixture of kraft and semichemical pulp

Also Published As

Publication number Publication date
US5022962A (en) 1991-06-11
SE8903549D0 (sv) 1989-10-25
FI81396B (fi) 1990-06-29
SE500390C2 (sv) 1994-06-13
SE8903549L (sv) 1990-04-26
FI884920A0 (fi) 1988-10-25
CA2001270A1 (en) 1990-04-25
FI81396C (fi) 1990-10-10

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Legal Events

Date Code Title Description
FG Patent granted

Owner name: ENSO GUTZEIT OY

MA Patent expired