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SE8800964L - Saett vid delignifiering av fiberhaltig cellulosamassa - Google Patents

Saett vid delignifiering av fiberhaltig cellulosamassa

Info

Publication number
SE8800964L
SE8800964L SE8800964A SE8800964A SE8800964L SE 8800964 L SE8800964 L SE 8800964L SE 8800964 A SE8800964 A SE 8800964A SE 8800964 A SE8800964 A SE 8800964A SE 8800964 L SE8800964 L SE 8800964L
Authority
SE
Sweden
Prior art keywords
delignification
oxygen
pulp
main
cellulosamassa
Prior art date
Application number
SE8800964A
Other languages
Unknown language ( )
English (en)
Other versions
SE8800964D0 (sv
SE465730B (sv
SE465730C (sv
Inventor
R Hillstroem
B Aahs
Original Assignee
Kamyr 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 Kamyr Ab filed Critical Kamyr Ab
Priority to SE8800964A priority Critical patent/SE465730C/sv
Publication of SE8800964D0 publication Critical patent/SE8800964D0/xx
Priority to US07/302,962 priority patent/US4895619A/en
Priority to CA000593974A priority patent/CA1322828C/en
Publication of SE8800964L publication Critical patent/SE8800964L/sv
Publication of SE465730B publication Critical patent/SE465730B/sv
Publication of SE465730C publication Critical patent/SE465730C/sv

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
    • D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
    • D21C3/026—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes in presence of O2, e.g. air

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)
SE8800964A 1988-03-17 1988-03-17 Sätt vid delignifiering av fiberhaltig cellulosamassa SE465730C (sv)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE8800964A SE465730C (sv) 1988-03-17 1988-03-17 Sätt vid delignifiering av fiberhaltig cellulosamassa
US07/302,962 US4895619A (en) 1988-03-17 1989-01-30 Method of delignification of cellulosic fiber material
CA000593974A CA1322828C (en) 1988-03-17 1989-03-16 Method of delignification of cellulosic fiber material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8800964A SE465730C (sv) 1988-03-17 1988-03-17 Sätt vid delignifiering av fiberhaltig cellulosamassa

Publications (4)

Publication Number Publication Date
SE8800964D0 SE8800964D0 (sv) 1988-03-17
SE8800964L true SE8800964L (sv) 1989-09-18
SE465730B SE465730B (sv) 1991-10-21
SE465730C SE465730C (sv) 2001-10-08

Family

ID=20371720

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8800964A SE465730C (sv) 1988-03-17 1988-03-17 Sätt vid delignifiering av fiberhaltig cellulosamassa

Country Status (3)

Country Link
US (1) US4895619A (sv)
CA (1) CA1322828C (sv)
SE (1) SE465730C (sv)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6210527B1 (en) 1994-03-14 2001-04-03 The Boc Group, Inc. Pulp bleaching method wherein an ozone bleaching waste stream is scrubbed to form an oxygen containing stream
US6514380B1 (en) * 1995-03-08 2003-02-04 Andritz Oy Treatment of chemical pulp
US20050087315A1 (en) * 2003-10-28 2005-04-28 Donovan Joseph R. Low consistency oxygen delignification process
CA2824076A1 (en) 2012-08-21 2014-02-21 University Of New Brunswick System and method for reclaiming rejects in sulfite pulping

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3830688A (en) * 1970-10-23 1974-08-20 Skogsaegarnas Ind Ab Method of reducing the discharge of waste products from pulp mills
SE381897C (sv) * 1973-11-23 1977-05-23 Skogegarnas Ind Ab Sett for satsvis alkalisk massakokning i kombination med kontinuerlig syredelignifiering
NO140936C (no) * 1977-07-08 1979-12-12 Borregaard As Fremgangsmaate ved fremstilling av sulfittcellulose fra kvistmasse
US4220498A (en) * 1978-12-14 1980-09-02 Kamyr, Inc. Oxygen reactor systems pulp reject treatment

Also Published As

Publication number Publication date
SE8800964D0 (sv) 1988-03-17
SE465730B (sv) 1991-10-21
US4895619A (en) 1990-01-23
SE465730C (sv) 2001-10-08
CA1322828C (en) 1993-10-12

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Legal Events

Date Code Title Description
NUG Patent has lapsed