SE353749B - - Google Patents

Info

Publication number
SE353749B
SE353749B SE02732/70A SE273270A SE353749B SE 353749 B SE353749 B SE 353749B SE 02732/70 A SE02732/70 A SE 02732/70A SE 273270 A SE273270 A SE 273270A SE 353749 B SE353749 B SE 353749B
Authority
SE
Sweden
Application number
SE02732/70A
Inventor
H Samuelson
S Noreus
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 SE02732/70A priority Critical patent/SE353749B/xx
Priority to ZA711271A priority patent/ZA711271B/xx
Priority to FI583/71A priority patent/FI55531C/fi
Priority to US119369A priority patent/US3701712A/en
Priority to DE2109542A priority patent/DE2109542C3/de
Priority to FR7106969A priority patent/FR2084031A5/fr
Priority to NO758/71A priority patent/NO133594C/no
Priority to BR1287/71*[A priority patent/BR7101287D0/pt
Priority to AT178371A priority patent/AT311169B/de
Priority to JP46010410A priority patent/JPS5022601B1/ja
Publication of SE353749B publication Critical patent/SE353749B/xx

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B1/00—Preparatory treatment of cellulose for making derivatives thereof, e.g. pre-treatment, pre-soaking, activation
    • C08B1/08—Alkali cellulose
    • 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
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1036—Use of compounds accelerating or improving the efficiency of the processes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
SE02732/70A 1970-03-02 1970-03-02 SE353749B (da)

Priority Applications (10)

Application Number Priority Date Filing Date Title
SE02732/70A SE353749B (da) 1970-03-02 1970-03-02
ZA711271A ZA711271B (en) 1970-03-02 1971-02-26 Process for treating cellulosic materials with alkali and oxygen in the presence of complex magnesium salts
FI583/71A FI55531C (fi) 1970-03-02 1971-02-26 Foerfarande foer delignifiering av cellulosahaltigt material genom behandling med alkali och syre tillsammans med magnesiumsalter och komplexbildare haerfoer
US119369A US3701712A (en) 1970-03-02 1971-02-26 Process for treating cellulosic materials with alkali and oxygen in the presence of complex magnesium salts
DE2109542A DE2109542C3 (de) 1970-03-02 1971-03-01 Verwendung ran Aminopolycarbonsäure oder eines Alkalisalzes derselben als Komplexbildner bei der Behandlung cellulosischer Materialien
FR7106969A FR2084031A5 (da) 1970-03-02 1971-03-01
NO758/71A NO133594C (da) 1970-03-02 1971-03-01
BR1287/71*[A BR7101287D0 (pt) 1970-03-02 1971-03-02 Processo aperfeicoado para tratar materiais celulosicos e alcali em presenca de oxigenio
AT178371A AT311169B (de) 1970-03-02 1971-03-02 Verfahren zum Delignifizieren von Zellulosematerialien
JP46010410A JPS5022601B1 (da) 1970-03-02 1971-03-02

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE02732/70A SE353749B (da) 1970-03-02 1970-03-02

Publications (1)

Publication Number Publication Date
SE353749B true SE353749B (da) 1973-02-12

Family

ID=20260555

Family Applications (1)

Application Number Title Priority Date Filing Date
SE02732/70A SE353749B (da) 1970-03-02 1970-03-02

Country Status (10)

Country Link
US (1) US3701712A (da)
JP (1) JPS5022601B1 (da)
AT (1) AT311169B (da)
BR (1) BR7101287D0 (da)
DE (1) DE2109542C3 (da)
FI (1) FI55531C (da)
FR (1) FR2084031A5 (da)
NO (1) NO133594C (da)
SE (1) SE353749B (da)
ZA (1) ZA711271B (da)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5027081B2 (da) * 1971-11-10 1975-09-05
US4045279A (en) * 1972-01-17 1977-08-30 Toyo Pulp Co., Ltd. Process for the manufacture of pulp using sodium carbonate and oxygen
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
US4087318A (en) * 1974-03-14 1978-05-02 Mo Och Domsjo Aktiebolag Oxygen-alkali delignification of lignocellulosic material in the presence of a manganese compound
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
US4338158A (en) * 1976-04-09 1982-07-06 Weyerhaeuser Company Pulping in the presence of a protector
US4172006A (en) * 1976-08-26 1979-10-23 Weyerhaeuser Company Method of delignifying wood chips with oxygen by adding cooking liquor under pressure
CA1079457A (en) * 1976-09-13 1980-06-17 Robert C. Eckert Manganic ion bleaching process
US4197168A (en) * 1978-06-07 1980-04-08 Scm Corporation Recovery of anthraquinone from tall oil
US4594130A (en) * 1978-11-27 1986-06-10 Chang Pei Ching Pulping of lignocellulose with aqueous alcohol and alkaline earth metal salt catalyst
FR2457338A1 (fr) * 1979-05-25 1980-12-19 Interox Procede pour la protection des matieres cellulosiques au cours de leurs traitements par des solutions alcalines
US5770010A (en) * 1995-04-20 1998-06-23 R-J Holding Company Pulping process employing nascent oxygen
US20020129911A1 (en) * 2000-10-16 2002-09-19 Marcoccia Bruno S. Process and configuration for providing external upflow/internal downflow in a continuous digester
WO2005047599A2 (en) * 2003-11-08 2005-05-26 Lally Thomas J Method for manufacturing fire-retardant cellulose-based materials
WO2012034087A1 (en) * 2010-09-10 2012-03-15 Synthetic Genomics, Inc. Solubilization of coal or lignocellulose biomass
US20130233340A1 (en) * 2012-03-07 2013-09-12 Paul Sapan Flavored Function Specific Toothpicks
CA3127736A1 (en) * 2019-01-31 2020-08-06 Organofuel Sweden Ab A process for the production of oxidized wood products

Also Published As

Publication number Publication date
US3701712A (en) 1972-10-31
DE2109542C3 (de) 1974-06-12
FI55531C (fi) 1979-08-10
DE2109542A1 (de) 1971-09-16
FR2084031A5 (da) 1971-12-17
ZA711271B (en) 1971-11-24
NO133594C (da) 1976-05-26
BR7101287D0 (pt) 1973-06-07
DE2109542B2 (de) 1973-11-08
JPS5022601B1 (da) 1975-08-01
AT311169B (de) 1973-11-12
NO133594B (da) 1976-02-16
FI55531B (fi) 1979-04-30

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