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NO162920C - Fremgangsmaate ved delignifiserende bleking av cellulosemasse. - Google Patents

Fremgangsmaate ved delignifiserende bleking av cellulosemasse.

Info

Publication number
NO162920C
NO162920C NO834407A NO834407A NO162920C NO 162920 C NO162920 C NO 162920C NO 834407 A NO834407 A NO 834407A NO 834407 A NO834407 A NO 834407A NO 162920 C NO162920 C NO 162920C
Authority
NO
Norway
Prior art keywords
delignificating
cellulosmass
white
procedure
white cellulosmass
Prior art date
Application number
NO834407A
Other languages
English (en)
Norwegian (no)
Other versions
NO834407L (no
NO162920B (no
Inventor
Hans Olof 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
Publication of NO834407L publication Critical patent/NO834407L/no
Publication of NO162920B publication Critical patent/NO162920B/no
Publication of NO162920C publication Critical patent/NO162920C/no

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)
NO834407A 1982-12-01 1983-11-30 Fremgangsmaate ved delignifiserende bleking av cellulosemasse. NO162920C (no)

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
NO834407L NO834407L (no) 1984-06-04
NO162920B NO162920B (no) 1989-11-27
NO162920C true NO162920C (no) 1990-03-07

Family

ID=20348818

Family Applications (1)

Application Number Title Priority Date Filing Date
NO834407A NO162920C (no) 1982-12-01 1983-11-30 Fremgangsmaate ved delignifiserende bleking av cellulosemasse.

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
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
SE8206859L (sv) 1984-06-02
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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Legal Events

Date Code Title Description
MM1K Lapsed by not paying the annual fees

Free format text: LAPSED IN MAY 2003