FI54345B - Foerfarande foer framstaellning av cellulosamassa - Google Patents

Foerfarande foer framstaellning av cellulosamassa

Info

Publication number
FI54345B
FI54345B FI1740/71A FI174071A FI54345B FI 54345 B FI54345 B FI 54345B FI 1740/71 A FI1740/71 A FI 1740/71A FI 174071 A FI174071 A FI 174071A FI 54345 B FI54345 B FI 54345B
Authority
FI
Finland
Prior art keywords
cellulosamassa
foerfarande foer
foer framstaellning
framstaellning
foerfarande
Prior art date
Application number
FI1740/71A
Other languages
English (en)
Other versions
FI54345C (fi
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
Application granted granted Critical
Publication of FI54345B publication Critical patent/FI54345B/fi
Publication of FI54345C publication Critical patent/FI54345C/fi

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
    • D21C11/06—Treatment of pulp gases; Recovery of the heat content of the gases; Treatment of gases arising from various sources in pulp and paper mills; Regeneration of gaseous SO2, e.g. arising from liquors containing sulfur compounds
FI1740/71A 1970-06-22 1971-06-18 Foerfarande foer framstaellning av cellulosamassa FI54345C (fi)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8589/70A SE343092B (fi) 1970-06-22 1970-06-22

Publications (2)

Publication Number Publication Date
FI54345B true FI54345B (fi) 1978-07-31
FI54345C FI54345C (fi) 1978-11-10

Family

ID=20274493

Family Applications (1)

Application Number Title Priority Date Filing Date
FI1740/71A FI54345C (fi) 1970-06-22 1971-06-18 Foerfarande foer framstaellning av cellulosamassa

Country Status (10)

Country Link
US (1) US3764464A (fi)
JP (1) JPS4938921B1 (fi)
AT (1) AT303509B (fi)
CA (1) CA935958A (fi)
DE (1) DE2130164B2 (fi)
FI (1) FI54345C (fi)
FR (1) FR2099805A5 (fi)
NO (1) NO131734C (fi)
SE (1) SE343092B (fi)
ZA (1) ZA714055B (fi)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE373896B (fi) * 1972-07-05 1975-02-17 Mo Och Domsjoe Ab
SE373395B (sv) * 1972-12-19 1975-02-03 Mo Och Domsjoe Ab Forfarande for framstellning av cellulosamassa med hog ljushet genom uppslutning av ved med syrgas under tryck i nervaro av en kokvetska forsatt med basiska neutralisationsmedel
SE381692B (sv) * 1973-10-17 1975-12-15 Mo Och Domsjoe Ab Forfarande for forbettring av vermeekonomin vid kokning av lignocellulosamaterial i diskontinuerliga kokare
US4089737A (en) * 1974-02-18 1978-05-16 Toyo Pulp Company, Ltd. Delignification of cellulosic material with an alkaline aqueous medium containing oxygen dissolved therein
SE393138B (sv) * 1974-03-14 1977-05-02 Mo Och Domsjoe Ab Forfarande for blekning av cellulosa med en syre innehallande gas i nervaro av natriumbikarbonat
GB1505529A (en) * 1974-06-14 1978-03-30 Mo Och Domsjoe Ab Method for the oxygen-gas delignification of lignocellulosic material and apparatus for carrying out the method
US4338158A (en) * 1976-04-09 1982-07-06 Weyerhaeuser Company Pulping in the presence of a protector
US4080248A (en) * 1976-06-28 1978-03-21 Crown Zellerbach Corporation Two-stage oxygen pulping
US4172006A (en) * 1976-08-26 1979-10-23 Weyerhaeuser Company Method of delignifying wood chips with oxygen by adding cooking liquor under pressure
JPS5383012A (en) * 1976-12-28 1978-07-22 Fujitec Kk Device for controlling induction motor
US4664832A (en) * 1984-09-28 1987-05-12 State Of South Dakota As Represented By The Department Of Transportation Deicing chemicals and their preparation from polysaccharide sources
US6126781A (en) 1991-08-01 2000-10-03 Union Camp Patent Holding, Inc. Process for conditioning ozone gas recycle stream in ozone pulp bleaching
WO1993018226A1 (en) * 1992-03-02 1993-09-16 Kamyr, Inc. Combined ozone destruction and fiber scrubbing in paper pulp mills
US5571378A (en) * 1993-11-23 1996-11-05 Hampshire Chemical Ltd. Process for high-pH metal ion chelation in pulps
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
SE516030C2 (sv) * 1994-11-14 2001-11-12 Aga Ab Regenerering av en gasblandning från ett ozonbleksteg
US6475338B1 (en) * 1996-06-05 2002-11-05 Andritz Inc. Method of minimizing transition metal ions during chemical pulping in a digester by adding chelating agent to the digester
PT1337315E (pt) * 2000-12-01 2005-02-28 Linde Ag Metodo para a depuracao de gas de escape de uma fabrica de pasta de celulose
FI122815B (fi) * 2005-04-18 2012-07-13 Cerefi Oy Menetelmä lignoselluloosamateriaalien ja niistä saatujen jakeiden fraktioimiseksi

Also Published As

Publication number Publication date
FR2099805A5 (fi) 1972-03-17
AT303509B (de) 1972-11-27
JPS4938921B1 (fi) 1974-10-22
FI54345C (fi) 1978-11-10
ZA714055B (en) 1973-02-28
DE2130164B2 (de) 1973-08-23
NO131734B (fi) 1975-04-07
DE2130164A1 (de) 1971-12-30
DE2130164C3 (fi) 1974-04-11
NO131734C (fi) 1975-07-16
SE343092B (fi) 1972-02-28
CA935958A (en) 1973-10-30
US3764464A (en) 1973-10-09

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