CA1299322C - Apparatus and methods for reducing the formation of scale in pulping operations - Google Patents

Apparatus and methods for reducing the formation of scale in pulping operations

Info

Publication number
CA1299322C
CA1299322C CA000558796A CA558796A CA1299322C CA 1299322 C CA1299322 C CA 1299322C CA 000558796 A CA000558796 A CA 000558796A CA 558796 A CA558796 A CA 558796A CA 1299322 C CA1299322 C CA 1299322C
Authority
CA
Canada
Prior art keywords
liquor
scale
vessel
digester
forming constituent
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
CA000558796A
Other languages
English (en)
French (fr)
Inventor
Larry A. Wilhelmsen
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.)
Kamyr Inc
Original Assignee
Kamyr Inc
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 Kamyr Inc filed Critical Kamyr Inc
Application granted granted Critical
Publication of CA1299322C publication Critical patent/CA1299322C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D21C3/226—Use of compounds avoiding scale formation
    • 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
    • D21C7/00—Digesters

Landscapes

  • Paper (AREA)
CA000558796A 1987-10-26 1988-02-12 Apparatus and methods for reducing the formation of scale in pulping operations Expired - Fee Related CA1299322C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US112,081 1980-01-14
US11208187A 1987-10-26 1987-10-26

Publications (1)

Publication Number Publication Date
CA1299322C true CA1299322C (en) 1992-04-28

Family

ID=22342018

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000558796A Expired - Fee Related CA1299322C (en) 1987-10-26 1988-02-12 Apparatus and methods for reducing the formation of scale in pulping operations

Country Status (6)

Country Link
EP (1) EP0313730A1 (de)
JP (1) JPH01148889A (de)
BR (1) BR8805152A (de)
CA (1) CA1299322C (de)
FI (1) FI883513A (de)
NO (1) NO883329L (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI972954A (fi) * 1997-07-11 1999-01-12 Sunds Defibrator Pori Oy Menetelmä sulfaattimassan valmistuksessa syntyvän jätelipeän käsittelemiseksi
FI981803A (fi) * 1998-08-21 2000-02-22 Ahlstrom Machinery Oy Menetelmä saostumien muodostumisen estämiseksi
FI110327B (fi) * 1999-10-04 2002-12-31 Metso Chemical Pulping Oy Menetelmä sellumassan valmistamiseksi
JP4763917B2 (ja) * 2001-05-29 2011-08-31 シチズンホールディングス株式会社 電子時計
SE520956C2 (sv) * 2001-12-05 2003-09-16 Kvaerner Pulping Tech Kontinuerlig kokning med extra uppehållstid för avdragen vätska utanför kokaren
US7241363B2 (en) * 2004-06-26 2007-07-10 International Paper Company Methods to decrease scaling in digester systems
ES2729110T3 (es) 2011-09-05 2019-10-30 Stora Enso Oyj Proceso para tratar el licor negro de madera dura y el licor negro de madera dura tratado de acuerdo con el proceso
US8986504B1 (en) 2013-10-25 2015-03-24 International Paper Company Digester apparatus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1945205A (en) * 1929-11-15 1934-01-30 Chemipulp Process Inc Paper manufacture
US2008839A (en) * 1932-09-15 1935-07-23 Samson Torsten Method and means for cleaning sulphite cellulose preheaters
SE8502807D0 (sv) * 1985-06-06 1985-06-06 Ahlstroem Foeretagen Sett och apparatur for att deaktivera avlutar

Also Published As

Publication number Publication date
NO883329L (no) 1989-04-27
JPH01148889A (ja) 1989-06-12
FI883513A0 (fi) 1988-07-26
NO883329D0 (no) 1988-07-27
FI883513A (fi) 1989-04-27
EP0313730A1 (de) 1989-05-03
BR8805152A (pt) 1989-05-16

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Legal Events

Date Code Title Description
MKLA Lapsed