CA2184706C - Impact of temperature and alkali charge on pulp brightness - Google Patents

Impact of temperature and alkali charge on pulp brightness Download PDF

Info

Publication number
CA2184706C
CA2184706C CA002184706A CA2184706A CA2184706C CA 2184706 C CA2184706 C CA 2184706C CA 002184706 A CA002184706 A CA 002184706A CA 2184706 A CA2184706 A CA 2184706A CA 2184706 C CA2184706 C CA 2184706C
Authority
CA
Canada
Prior art keywords
liquor
cooking
black liquor
hot
digester
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
CA002184706A
Other languages
English (en)
French (fr)
Other versions
CA2184706A1 (en
Inventor
Nam Hee Shin
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.)
Groupe Laperriere and Verreault Inc
Original Assignee
Beloit Technologies 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 Beloit Technologies Inc filed Critical Beloit Technologies Inc
Publication of CA2184706A1 publication Critical patent/CA2184706A1/en
Application granted granted Critical
Publication of CA2184706C publication Critical patent/CA2184706C/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
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/0021—Introduction of various effluents, e.g. waste waters, into the pulping, recovery and regeneration cycle (closed-cycle)
    • 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
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • D21C1/06—Pretreatment of the finely-divided materials before digesting with alkaline reacting compounds
    • 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

Landscapes

  • Paper (AREA)
  • Pens And Brushes (AREA)
  • Primary Cells (AREA)
  • Dental Preparations (AREA)
  • Glass Compositions (AREA)
  • Secondary Cells (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Peptides Or Proteins (AREA)
CA002184706A 1994-03-04 1995-03-02 Impact of temperature and alkali charge on pulp brightness Expired - Fee Related CA2184706C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US20649694A 1994-03-04 1994-03-04
US08/206,496 1994-03-04
PCT/US1995/002719 WO1995023891A1 (en) 1994-03-04 1995-03-02 Impact of temperature and alkali charge on pulp brightness

Publications (2)

Publication Number Publication Date
CA2184706A1 CA2184706A1 (en) 1995-09-08
CA2184706C true CA2184706C (en) 2001-10-30

Family

ID=22766657

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002184706A Expired - Fee Related CA2184706C (en) 1994-03-04 1995-03-02 Impact of temperature and alkali charge on pulp brightness

Country Status (19)

Country Link
EP (1) EP0748412B1 (zh)
JP (1) JP2876428B2 (zh)
CN (1) CN1143398A (zh)
AT (1) ATE172503T1 (zh)
AU (1) AU684623B2 (zh)
BR (1) BR9506974A (zh)
CA (1) CA2184706C (zh)
DE (1) DE69505503T2 (zh)
ES (1) ES2126263T3 (zh)
FI (1) FI118348B (zh)
MX (1) MX9603876A (zh)
NO (1) NO963520L (zh)
NZ (1) NZ282616A (zh)
PL (1) PL316144A1 (zh)
RO (1) RO117929B1 (zh)
RU (1) RU2127342C1 (zh)
TW (1) TW270159B (zh)
WO (1) WO1995023891A1 (zh)
ZA (1) ZA951777B (zh)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI970254A (fi) 1997-01-22 1998-07-23 Ahlstrom Machinery Oy Menetelmä ja laitteisto massan keittämiseksi
US6139689A (en) * 1997-06-11 2000-10-31 Beloit Technologies, Inc. Apparatus for digesting pulp in a displacement batch digester that uses displacement liquor having a sufficient hydrostatic head
FI20001351A0 (fi) * 2000-06-06 2000-06-06 Valmet Chemical Pulping Oy Eräkeittomenetelmä
SE529475C2 (sv) * 2006-11-22 2007-08-21 Metso Fiber Karlstad Ab Metod för att återvinna värmeenergi från svartlut
KR20110123184A (ko) 2010-05-06 2011-11-14 바히아 스페셜티 셀룰로스 에스에이 높은 알파 용해 펄프 제조를 위한 방법 및 시스템
CN103757961B (zh) * 2013-12-30 2016-01-20 汶瑞机械(山东)有限公司 一种间歇蒸煮装置及其布液方法
US9644317B2 (en) 2014-11-26 2017-05-09 International Paper Company Continuous digester and feeding system
FI129440B (fi) * 2020-01-15 2022-02-28 Chempolis Oy Keittolaitteisto ja -menetelmä lignoselluloosaa sisältävän biomassan käsittelemiseksi

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1687076A (en) * 1927-10-12 1928-10-09 Venning D Simons Process for cooking wood chips by the alkaline process of pulp manufacture
US4578149A (en) * 1981-03-05 1986-03-25 Fagerlund Bertil K E Process for digesting cellulosic material with heat recovery
JPS6059189A (ja) * 1983-08-24 1985-04-05 ベロイト　コ−ポレ−ション 多段式木材チツプ蒸解法
SU1498857A1 (ru) * 1987-07-17 1989-08-07 Сибирский научно-исследовательский институт целлюлозы и картона Способ щелочной варки целлюлозы в котлах периодического действи

Also Published As

Publication number Publication date
TW270159B (zh) 1996-02-11
CN1143398A (zh) 1997-02-19
MX9603876A (es) 1997-03-29
RU2127342C1 (ru) 1999-03-10
ZA951777B (en) 1995-12-11
DE69505503T2 (de) 1999-10-21
AU1978995A (en) 1995-09-18
BR9506974A (pt) 1997-09-16
AU684623B2 (en) 1997-12-18
WO1995023891A1 (en) 1995-09-08
FI963448A (fi) 1996-09-03
NZ282616A (en) 1997-05-26
JPH09505115A (ja) 1997-05-20
FI963448A0 (fi) 1996-09-03
EP0748412B1 (en) 1998-10-21
ES2126263T3 (es) 1999-03-16
JP2876428B2 (ja) 1999-03-31
CA2184706A1 (en) 1995-09-08
EP0748412A1 (en) 1996-12-18
PL316144A1 (en) 1996-12-23
NO963520L (no) 1996-08-23
ATE172503T1 (de) 1998-11-15
RO117929B1 (ro) 2002-09-30
FI118348B (fi) 2007-10-15
DE69505503D1 (de) 1998-11-26

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed