CA918978A - Oxygen bleaching - Google Patents

Oxygen bleaching

Info

Publication number
CA918978A
CA918978A CA918978A CA918978DA CA918978A CA 918978 A CA918978 A CA 918978A CA 918978 A CA918978 A CA 918978A CA 918978D A CA918978D A CA 918978DA CA 918978 A CA918978 A CA 918978A
Authority
CA
Canada
Prior art keywords
oxygen bleaching
bleaching
oxygen
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
CA918978A
Other languages
English (en)
Inventor
G. Jamieson Allan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PPG Architectural Coatings Canada Inc
Original Assignee
Canadian Industries Ltd
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 Canadian Industries Ltd filed Critical Canadian Industries Ltd
Application granted granted Critical
Publication of CA918978A publication Critical patent/CA918978A/en
Expired legal-status Critical Current

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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Branching, Merging, And Special Transfer Between Conveyors (AREA)
CA918978A 1970-01-08 1970-01-08 Oxygen bleaching Expired CA918978A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA71726 1970-01-08

Publications (1)

Publication Number Publication Date
CA918978A true CA918978A (en) 1973-01-16

Family

ID=4086157

Family Applications (1)

Application Number Title Priority Date Filing Date
CA918978A Expired CA918978A (en) 1970-01-08 1970-01-08 Oxygen bleaching

Country Status (11)

Country Link
US (1) US3754417A (fr)
AT (1) AT305015B (fr)
AU (1) AU2323070A (fr)
BR (1) BR7025003D0 (fr)
CA (1) CA918978A (fr)
DE (1) DE2100703A1 (fr)
FI (1) FI52746C (fr)
FR (1) FR2075111A5 (fr)
GB (1) GB1343126A (fr)
NO (1) NO130068B (fr)
ZA (1) ZA708365B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2523191A1 (de) * 1974-06-14 1975-12-18 Mo Och Domsjoe Ab Verfahren zur delignizifierung von lignocellulosischem material

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3830473A (en) * 1973-02-22 1974-08-20 Standard Brands Inc Starch paste apparatus
US4079603A (en) * 1973-10-16 1978-03-21 Niels Bergholtz & Company K/B Apparatus for liquid treatment, particularly for textile material dyeing
US4062722A (en) * 1974-01-18 1977-12-13 Carlos Ibanez Ajuria Device for treating deformable particles with the counterflowing liquids
NO138491B (no) * 1974-04-17 1978-06-05 Per Kock Christensen Fremgangsmaate ved delignifisering og bleking av cellulosemasse
JPS5126302A (en) * 1974-08-22 1976-03-04 Hitachi Shipbuilding Eng Co Sansoganjugasunyoru seruroosubutsushitsuno shorihoho
US3966542A (en) * 1974-09-20 1976-06-29 General Signal Corporation Multi-stage bleaching of pulp using successively lower power levels
US4048007A (en) * 1975-05-14 1977-09-13 The Dow Chemical Company Method of removing solvent residues from aqueous paper pulps
SU591539A1 (ru) * 1975-10-03 1978-02-05 Всесоюзное научно-производственное объединение целлюлозно-бумажной промышленности Установка дл обработки лигноцеллюлозного материала
NO137651C (no) * 1975-10-31 1978-03-29 Myrens Verksted As Fremgangsmaate og apparat til kontinuerlig behandling av findelt fibermateriale eller celluloseholdig masse med gass uten overtrykk.
US4198266A (en) * 1977-10-12 1980-04-15 Airco, Inc. Oxygen delignification of wood pulp
US4259150A (en) * 1978-12-18 1981-03-31 Kamyr Inc. Plural stage mixing and thickening oxygen bleaching process
US4435249A (en) 1979-09-05 1984-03-06 The Black Clawson Co. Process for the oxygen delignification of pulp mill rejects
US4363697A (en) * 1979-12-03 1982-12-14 The Black Clawson Company Method for medium consistency oxygen delignification of pulp
ZA816105B (en) * 1980-09-05 1982-09-29 Black Clawson Co Process and apparatus for the delignification of pulp
US4405063A (en) * 1981-02-27 1983-09-20 Nordson Corporation Method and apparatus for controlling the density of dispensed hot melt thermoplastic adhesive foam
ZA821923B (en) * 1981-04-06 1983-02-23 Black Clawson Co Method and apparatus for oxygen delignification
US4384920A (en) * 1981-04-06 1983-05-24 The Black Clawson Company Method and apparatus for oxygen delignification
US6340409B1 (en) * 1993-04-29 2002-01-22 Lewis Donald Shackford Method for multistage bleaching using gaseous reagent in the first stage with controlled gas release
SE9402542D0 (sv) * 1994-07-20 1994-07-20 Kvaerner Pulping Tech Förfarande och anordning vid blekning med trycksatt peroxid
DE19626200C2 (de) * 1996-06-29 2001-02-01 Voith Sulzer Stoffaufbereitung Verfahren zur Erhöhung des Weißgrades von Altpapierfaserstoff
US6153050A (en) * 1998-03-24 2000-11-28 Noranda Forest Inc. Method and system for controlling the addition of bleaching reagents to obtain a substantially constant percentage of pulp delignification across the first bleaching/delignifying stage
US7163334B2 (en) * 2000-03-13 2007-01-16 The University Of Akron Method and apparatus for mixing fibers
US9512560B2 (en) * 2014-10-31 2016-12-06 Quantum Technologies, Inc. Short oxygen delignification method

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1044185A (en) * 1908-05-01 1912-11-12 Eugene D Jefferson Bleaching apparatus.
US2121324A (en) * 1936-06-23 1938-06-21 Texas Co Liquid level control apparatus
US2730888A (en) * 1952-12-31 1956-01-17 Hercules Powder Co Ltd Apparatus for treating pulp with liquid
US3130076A (en) * 1961-09-29 1964-04-21 American Cyanamid Co Continuous vinyl grafting of cellulose
US3134384A (en) * 1963-05-20 1964-05-26 Improved Machinery Inc Downflow countercurrent washing apparatus
CA834629A (en) * 1966-09-30 1970-02-17 Amiel W. Brinkley, Jr. Rapid high consistency bleaching of pulp
US3587257A (en) * 1967-10-16 1971-06-28 Stadler Hurter International L Bleaching system including a single,triple-deck table washer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2523191A1 (de) * 1974-06-14 1975-12-18 Mo Och Domsjoe Ab Verfahren zur delignizifierung von lignocellulosischem material

Also Published As

Publication number Publication date
FR2075111A5 (fr) 1971-10-08
ZA708365B (en) 1972-07-26
AU2323070A (en) 1972-06-15
US3754417A (en) 1973-08-28
AT305015B (de) 1973-02-12
DE2100703A1 (de) 1971-07-15
GB1343126A (en) 1974-01-10
FI52746B (fr) 1977-08-01
FI52746C (fi) 1977-11-10
BR7025003D0 (pt) 1973-01-18
NO130068B (fr) 1974-07-01

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