CA2627420C - A method and an apparatus for removing extractives from fibrous suspension - Google Patents

A method and an apparatus for removing extractives from fibrous suspension Download PDF

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Publication number
CA2627420C
CA2627420C CA2627420A CA2627420A CA2627420C CA 2627420 C CA2627420 C CA 2627420C CA 2627420 A CA2627420 A CA 2627420A CA 2627420 A CA2627420 A CA 2627420A CA 2627420 C CA2627420 C CA 2627420C
Authority
CA
Canada
Prior art keywords
fines
containing suspension
additive
extractives
suspension
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 - Fee Related
Application number
CA2627420A
Other languages
English (en)
French (fr)
Other versions
CA2627420A1 (en
Inventor
Lari Lammi
Petri Lassila
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.)
Valmet Technologies Oy
Original Assignee
Valmet Technologies 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 Valmet Technologies Oy filed Critical Valmet Technologies Oy
Publication of CA2627420A1 publication Critical patent/CA2627420A1/en
Application granted granted Critical
Publication of CA2627420C publication Critical patent/CA2627420C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/02—Agents for preventing deposition on the paper mill equipment, e.g. pitch or slime control
    • 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
    • D21C9/08—Removal of fats, resins, pitch or waxes; Chemical or physical purification, i.e. refining, of crude cellulose by removing non-cellulosic contaminants, optionally combined with bleaching

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
CA2627420A 2005-10-31 2006-10-31 A method and an apparatus for removing extractives from fibrous suspension Expired - Fee Related CA2627420C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI20055585 2005-10-31
FI20055585A FI123107B (sv) 2005-10-31 2005-10-31 Förfarande och anordning för avlägsning av extraktivämnen från en fiberhaltig suspension
PCT/FI2006/050469 WO2007051907A1 (en) 2005-10-31 2006-10-31 A method and an apparatus for removing extractives from fibrous suspension

Publications (2)

Publication Number Publication Date
CA2627420A1 CA2627420A1 (en) 2007-05-10
CA2627420C true CA2627420C (en) 2014-06-17

Family

ID=35185291

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2627420A Expired - Fee Related CA2627420C (en) 2005-10-31 2006-10-31 A method and an apparatus for removing extractives from fibrous suspension

Country Status (4)

Country Link
EP (1) EP1951953B1 (sv)
CA (1) CA2627420C (sv)
FI (1) FI123107B (sv)
WO (1) WO2007051907A1 (sv)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018204906A1 (en) 2017-05-05 2018-11-08 Masonite Corporation Cellulosic articles made from cellulosic materials and methods therefor

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4313790A (en) * 1980-03-31 1982-02-02 Pulp And Paper Research Institute Of Canada Additives for increased retention and pitch control in paper manufacture
AU2619588A (en) * 1987-10-19 1989-05-23 J.M. Huber Corporation Cationic clays and uses in paper and paints
US4964955A (en) * 1988-12-21 1990-10-23 Cyprus Mines Corporation Method of reducing pitch in pulping and papermaking operations
SE465932B (sv) * 1990-03-21 1991-11-18 Bergvik Kemi Ab Foerfarande foer rening av tallharts genom avlaegsnande av fria fettsyror daeri samt tallharts fritt fraan fria fettsyror erhaallet genom detta foerfarande
US5468396A (en) * 1994-03-16 1995-11-21 Pulp And Paper Research Institute Of Canada Centrifugal cleaning of pulp and paper process liquids
FI115978B (sv) * 2000-11-16 2005-08-31 Ciba Sc Holding Ag Förfarande för återvinning av icke-fibrösa substanser från träämne

Also Published As

Publication number Publication date
FI20055585A0 (sv) 2005-10-31
EP1951953B1 (en) 2013-04-24
EP1951953A1 (en) 2008-08-06
FI20055585A (sv) 2007-05-01
CA2627420A1 (en) 2007-05-10
FI123107B (sv) 2012-11-15
WO2007051907A1 (en) 2007-05-10

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20181031