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SE8206859L - Forfarande vid delignifierande blekning av cellulosamassa - Google Patents

Forfarande vid delignifierande blekning av cellulosamassa

Info

Publication number
SE8206859L
SE8206859L SE8206859A SE8206859A SE8206859L SE 8206859 L SE8206859 L SE 8206859L SE 8206859 A SE8206859 A SE 8206859A SE 8206859 A SE8206859 A SE 8206859A SE 8206859 L SE8206859 L SE 8206859L
Authority
SE
Sweden
Prior art keywords
pulp
range
water
delignificating
cellulosamassa
Prior art date
Application number
SE8206859A
Other languages
Unknown language ( )
English (en)
Other versions
SE8206859D0 (sv
SE434283B (sv
Inventor
H O Samuelson
Original Assignee
Mo Och Domsjoe 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 Domsjoe Ab filed Critical Mo Och Domsjoe Ab
Priority to SE8206859A priority Critical patent/SE434283B/sv
Publication of SE8206859D0 publication Critical patent/SE8206859D0/sv
Priority to NZ205971A priority patent/NZ205971A/en
Priority to AU20858/83A priority patent/AU560978B2/en
Priority to JP58218567A priority patent/JPS59106592A/ja
Priority to DE19833343403 priority patent/DE3343403A1/de
Priority to AT0418483A priority patent/AT384252B/de
Priority to FR8319086A priority patent/FR2537176B1/fr
Priority to US06/556,498 priority patent/US4602982A/en
Priority to FI834382A priority patent/FI73018C/sv
Priority to NO834407A priority patent/NO162920C/no
Priority to CA000442360A priority patent/CA1205959A/en
Publication of SE8206859L publication Critical patent/SE8206859L/sv
Publication of SE434283B publication Critical patent/SE434283B/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
    • 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
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/1005—Pretreatment of the pulp, e.g. degassing the pulp

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
SE8206859A 1982-12-01 1982-12-01 Forfarande for delignifiering av cellulosamassa med kveveoxider och syrgas SE434283B (sv)

Priority Applications (11)

Application Number Priority Date Filing Date Title
SE8206859A SE434283B (sv) 1982-12-01 1982-12-01 Forfarande for delignifiering av cellulosamassa med kveveoxider och syrgas
NZ205971A NZ205971A (en) 1982-12-01 1983-10-14 Delignifying bleaching of cellulosic pulp using nitrogen oxides with addition of sodium nitrate
AU20858/83A AU560978B2 (en) 1982-12-01 1983-10-31 Bleaching cellulose pulp
JP58218567A JPS59106592A (ja) 1982-12-01 1983-11-18 セルロ−スパルプの脱リグニン漂白方法
NO834407A NO162920C (no) 1982-12-01 1983-11-30 Fremgangsmaate ved delignifiserende bleking av cellulosemasse.
DE19833343403 DE3343403A1 (de) 1982-12-01 1983-11-30 Verfahren zum delignifizierenden bleichen eines wasserhaltigen cellulosehalbstoffes
AT0418483A AT384252B (de) 1982-12-01 1983-11-30 Verfahren zum delignifizierenden bleichen von cellulosemassen
FR8319086A FR2537176B1 (fr) 1982-12-01 1983-11-30 Procede de blanchiment par delignification de la pate cellulosique
US06/556,498 US4602982A (en) 1982-12-01 1983-11-30 Process for delignifying bleaching lignin-containing cellulose pulp by activating the pulp with NO2 and O2 gas in the presence of water, sodium nitrate and nitric acid
FI834382A FI73018C (sv) 1982-12-01 1983-11-30 Förfarande för delignifierande blekning av cellulosamassa.
CA000442360A CA1205959A (en) 1982-12-01 1983-12-01 Process for delignifying bleaching lignin-containing cellulose pulp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8206859A SE434283B (sv) 1982-12-01 1982-12-01 Forfarande for delignifiering av cellulosamassa med kveveoxider och syrgas

Publications (3)

Publication Number Publication Date
SE8206859D0 SE8206859D0 (sv) 1982-12-01
SE8206859L true SE8206859L (sv) 1984-06-02
SE434283B SE434283B (sv) 1984-07-16

Family

ID=20348818

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8206859A SE434283B (sv) 1982-12-01 1982-12-01 Forfarande for delignifiering av cellulosamassa med kveveoxider och syrgas

Country Status (11)

Country Link
US (1) US4602982A (sv)
JP (1) JPS59106592A (sv)
AT (1) AT384252B (sv)
AU (1) AU560978B2 (sv)
CA (1) CA1205959A (sv)
DE (1) DE3343403A1 (sv)
FI (1) FI73018C (sv)
FR (1) FR2537176B1 (sv)
NO (1) NO162920C (sv)
NZ (1) NZ205971A (sv)
SE (1) SE434283B (sv)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2005369A1 (en) * 1988-12-20 1990-06-20 Madhusudan D. Jayawant Process for improved alkaline oxidative delignification of cellulose pulp
US4995983A (en) * 1990-03-21 1991-02-26 Macmillan Bloedel Limited Membrane separation process
FI98537C (sv) * 1993-10-20 1997-07-10 Enso Gutzeit Oy Förfarande för separering av natriumhydroxid ur vitlut
FI96387C (sv) * 1994-09-19 2001-12-03 Kvaerner Pulping Oy En metod för att avlägsna kväveoksid från cellulosafabrikens rökgaser
CA2452145A1 (en) * 2003-06-03 2004-12-03 David Tarasenko Method for producing pulp and lignin
ATE553246T1 (de) * 2005-12-07 2012-04-15 Kelly Anthony O'flynn Neuer katalytischer reaktor zur herstellung von halbstoff mit handelsqualität, nativem lignin und einzelligem protein
US8663427B2 (en) 2011-04-07 2014-03-04 International Paper Company Addition of endothermic fire retardants to provide near neutral pH pulp fiber webs
WO2012018749A1 (en) 2010-08-03 2012-02-09 International Paper Company Fire retardant treated fluff pulp web and process for making same
US8388807B2 (en) 2011-02-08 2013-03-05 International Paper Company Partially fire resistant insulation material comprising unrefined virgin pulp fibers and wood ash fire retardant component
GB201414829D0 (en) 2014-08-20 2014-10-01 Univ St Andrews Lignin processing

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1040198A (en) * 1909-01-28 1912-10-01 Charles Hartman Belt-tension regulator for ice-cutting machines.
US1829852A (en) * 1928-12-13 1931-11-03 Cornstalk Products Company Inc Manufacture of cellulose from straw
US1923292A (en) * 1931-08-31 1933-08-22 Harry P Bassett Purification of cellulose material
DE681149C (de) * 1936-04-24 1939-09-18 I G Farbenindustrie Akt Ges Verfahren zur Gewinnung von Zellstoff
US4076579A (en) * 1973-08-06 1978-02-28 The Regents Of The University Of California Pulping of lignocellulosic material by sequential treatment thereof with nitric oxide and oxygen
SE421938B (sv) * 1980-06-05 1982-02-08 Mo Och Domsjoe Ab Forfarande for behandling av cellulosamassa med kveveoxider fore syrgasblekning
SE445122B (sv) * 1980-12-17 1986-06-02 Mo Och Domsjoe Ab Forfarande for delignifiering av cellulosamassa i nervaro av kvevedioxid
SE448006B (sv) * 1981-09-21 1987-01-12 Mo Och Domsjoe Ab Forfarande for blekning av cellulosamassa innefattande ett aktiveringssteg med kveveoxider

Also Published As

Publication number Publication date
DE3343403A1 (de) 1984-06-07
US4602982A (en) 1986-07-29
NZ205971A (en) 1987-01-23
NO162920C (no) 1990-03-07
FI73018C (sv) 1987-08-10
FI834382A0 (fi) 1983-11-30
FR2537176A1 (fr) 1984-06-08
FI73018B (fi) 1987-04-30
SE8206859D0 (sv) 1982-12-01
CA1205959A (en) 1986-06-17
FI834382A (fi) 1984-06-02
JPS59106592A (ja) 1984-06-20
NO834407L (no) 1984-06-04
AU560978B2 (en) 1987-04-30
FR2537176B1 (fr) 1988-06-17
AT384252B (de) 1987-10-27
ATA418483A (de) 1987-03-15
JPS642715B2 (sv) 1989-01-18
AU2085883A (en) 1984-06-07
DE3343403C2 (sv) 1989-04-27
SE434283B (sv) 1984-07-16
NO162920B (no) 1989-11-27

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