AT303509B - Process for the production of wood pulp - Google Patents

Process for the production of wood pulp

Info

Publication number
AT303509B
AT303509B AT542871A AT542871A AT303509B AT 303509 B AT303509 B AT 303509B AT 542871 A AT542871 A AT 542871A AT 542871 A AT542871 A AT 542871A AT 303509 B AT303509 B AT 303509B
Authority
AT
Austria
Prior art keywords
production
wood pulp
pulp
wood
Prior art date
Application number
AT542871A
Other languages
German (de)
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 AT303509B publication Critical patent/AT303509B/en

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
AT542871A 1970-06-22 1971-06-22 Process for the production of wood pulp AT303509B (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
AT303509B true AT303509B (en) 1972-11-27

Family

ID=20274493

Family Applications (1)

Application Number Title Priority Date Filing Date
AT542871A AT303509B (en) 1970-06-22 1971-06-22 Process for the production of wood pulp

Country Status (10)

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

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE373896B (en) * 1972-07-05 1975-02-17 Mo Och Domsjoe Ab
SE373395B (en) * 1972-12-19 1975-02-03 Mo Och Domsjoe Ab PROCEDURE FOR THE PRODUCTION OF CELLULOSA MASS WITH HIGH LIGHTNESS BY DISTRIBUTING WOOD WITH ACID GAS UNDER PRESSURE IN THE PRESENCE OF A COCK
SE381692B (en) * 1973-10-17 1975-12-15 Mo Och Domsjoe Ab PROCEDURE FOR IMPROVING HEATING ECONOMY WHEN COOKING LIGNOCELLULOSE MATERIAL IN DISCONTINUAL BOILERS
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 (en) * 1974-03-14 1977-05-02 Mo Och Domsjoe Ab PROCEDURE FOR BLEACHING CELLULOSA WITH AN ACID CONTAINING GAS IN THE PRESENCE OF SODIUM BICARBONATE
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
CA2107764A1 (en) * 1992-03-02 1993-09-16 Lawrence A. Hinkey 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 (en) * 1994-11-14 2001-11-12 Aga Ab Regeneration of a gas mixture from an ozone bleaching stage
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 (en) * 2000-12-01 2005-02-28 Linde Ag METHOD FOR THE EXHAUST GAS DEPURATION OF A CELLULOSE PULP FACTORY
FI122815B (en) * 2005-04-18 2012-07-13 Cerefi Oy Method for fractionating lignocellulosic materials and parts obtained from them

Also Published As

Publication number Publication date
FI54345C (en) 1978-11-10
NO131734B (en) 1975-04-07
US3764464A (en) 1973-10-09
DE2130164B2 (en) 1973-08-23
CA935958A (en) 1973-10-30
DE2130164C3 (en) 1974-04-11
FI54345B (en) 1978-07-31
ZA714055B (en) 1973-02-28
DE2130164A1 (en) 1971-12-30
NO131734C (en) 1975-07-16
JPS4938921B1 (en) 1974-10-22
SE343092B (en) 1972-02-28
FR2099805A5 (en) 1972-03-17

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee