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DE3265116D1 - A method for improving the washing of cellulose pulps produced from lignocellulosic material - Google Patents

A method for improving the washing of cellulose pulps produced from lignocellulosic material

Info

Publication number
DE3265116D1
DE3265116D1 DE8282100102T DE3265116T DE3265116D1 DE 3265116 D1 DE3265116 D1 DE 3265116D1 DE 8282100102 T DE8282100102 T DE 8282100102T DE 3265116 T DE3265116 T DE 3265116T DE 3265116 D1 DE3265116 D1 DE 3265116D1
Authority
DE
Germany
Prior art keywords
washing
improving
lignocellulosic material
pulp
cellulose pulps
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.)
Expired
Application number
DE8282100102T
Other languages
German (de)
Inventor
Jonas Arne Ingvar Lindahl
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.)
Mo och Domsjo AB
Original Assignee
Mo och Domsjo 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 Domsjo AB filed Critical Mo och Domsjo AB
Application granted granted Critical
Publication of DE3265116D1 publication Critical patent/DE3265116D1/en
Expired legal-status Critical Current

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
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D1/00—Methods of beating or refining; Beaters of the Hollander type
    • D21D1/20—Methods of refining
    • D21D1/40—Washing the fibres

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
  • Peptides Or Proteins (AREA)

Abstract

To provide a cleaner pulp and to obtain a higher chemical recovery during washing of chemically cooked and optionally defibrated cellulose pulp, the partially washed pulp is subjected to a mild mechanical treatment e.g. in a device (10) adapted for high-consistency treatment and provided with screwsrotating relative to each other, said treatment taking place between at least one pair of conventional washing stages (4,14).
DE8282100102T 1981-01-14 1982-01-08 A method for improving the washing of cellulose pulps produced from lignocellulosic material Expired DE3265116D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8100179A SE443383C (en) 1981-01-14 1981-01-14 PROCEDURE FOR WASHING CELLULOSAMASSA

Publications (1)

Publication Number Publication Date
DE3265116D1 true DE3265116D1 (en) 1985-09-12

Family

ID=20342871

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8282100102T Expired DE3265116D1 (en) 1981-01-14 1982-01-08 A method for improving the washing of cellulose pulps produced from lignocellulosic material

Country Status (9)

Country Link
EP (1) EP0056263B1 (en)
JP (1) JPS57139591A (en)
AT (1) ATE14762T1 (en)
AU (1) AU548277B2 (en)
CA (1) CA1164704A (en)
DE (1) DE3265116D1 (en)
FI (1) FI69656C (en)
NO (1) NO160219C (en)
SE (1) SE443383C (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE445051B (en) * 1980-04-10 1986-05-26 Sca Development Ab SET FOR MANUFACTURING MECHANICAL, MAINLY HEART-FREE CELLULOSAMASSA
FI77063B (en) * 1986-12-17 1988-09-30 Ahlstroem Oy FOERFARANDE FOER EFFEKTIVERING AV FIBERSUSPENSIONSTVAETT.
FI81136C (en) * 1987-11-11 1990-09-10 Ahlstroem Oy Method and apparatus for treating pulp
US5554259A (en) 1993-10-01 1996-09-10 Union Camp Patent Holdings, Inc. Reduction of salt scale precipitation by control of process stream Ph and salt concentration
CA2402886C (en) 2000-03-14 2012-02-14 James Hardie Research Pty Limited Fiber cement building materials with low density additives
NZ525326A (en) 2000-10-04 2006-03-31 James Hardie Int Finance Bv Fiber cement composite materials using sized cellulose fibers
WO2002033164A2 (en) * 2000-10-17 2002-04-25 James Hardie Research Pty Limited Method for reducing impurities in cellulose fibers for manufacture of fiber reinforced cement composite materials
EP1574614B1 (en) 2000-10-17 2015-11-11 James Hardie Technology Limited Method for reducing impurities in cellulose fibers for manufacture of fiber reinforced cement composite materials
ES2284820T3 (en) 2001-03-09 2007-11-16 James Hardie International Finance B.V. FIBER REINFORCED CEMENT COMPOUND MATERIALS USING CHEMICALLY TREATED FIBERS WITH IMPROVED DISPERSABILITY.
US7993570B2 (en) 2002-10-07 2011-08-09 James Hardie Technology Limited Durable medium-density fibre cement composite
CN100402455C (en) 2003-01-09 2008-07-16 詹姆斯哈迪国际财金公司 Fiber cement composite material using bleached cellulose fibers and method for its production
US7998571B2 (en) 2004-07-09 2011-08-16 James Hardie Technology Limited Composite cement article incorporating a powder coating and methods of making same
AU2007236561B2 (en) 2006-04-12 2012-12-20 James Hardie Technology Limited A surface sealed reinforced building element
DE102007036377A1 (en) * 2007-07-31 2009-02-05 Voith Patent Gmbh Use of washing and screw presses for raw material and pulp washing
US8209927B2 (en) 2007-12-20 2012-07-03 James Hardie Technology Limited Structural fiber cement building materials
SE538262C2 (en) * 2014-06-26 2016-04-19 Valmet Oy Arrangements for feeding and washing lignocellulosic material and two-stage analysis system comprising the arrangement

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2451963A1 (en) * 1979-03-22 1980-10-17 Creusot Loire PROCESS AND INSTALLATION FOR PREPARING AND WASHING A PAPER PULP FROM A LIGNOCELLULOSIC MATERIAL REDUCED IN PIECES

Also Published As

Publication number Publication date
FI69656B (en) 1985-11-29
NO160219B (en) 1988-12-12
SE443383B (en) 1986-02-24
AU7917582A (en) 1982-07-22
EP0056263B1 (en) 1985-08-07
JPS57139591A (en) 1982-08-28
SE443383C (en) 1987-11-16
FI69656C (en) 1991-12-24
JPS63557B2 (en) 1988-01-07
EP0056263A1 (en) 1982-07-21
SE8100179L (en) 1982-07-15
NO160219C (en) 1989-03-22
AU548277B2 (en) 1985-12-05
ATE14762T1 (en) 1985-08-15
FI820005L (en) 1982-07-15
CA1164704A (en) 1984-04-03
NO820095L (en) 1982-07-15

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee