CA2063591A1 - Environmentally Improved Process for Bleaching Lignocellulosic Materials - Google Patents

Environmentally Improved Process for Bleaching Lignocellulosic Materials

Info

Publication number
CA2063591A1
CA2063591A1 CA2063591A CA2063591A CA2063591A1 CA 2063591 A1 CA2063591 A1 CA 2063591A1 CA 2063591 A CA2063591 A CA 2063591A CA 2063591 A CA2063591 A CA 2063591A CA 2063591 A1 CA2063591 A1 CA 2063591A1
Authority
CA
Canada
Prior art keywords
pulp
delignifying
improved process
bleaching
lignocellulosic materials
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.)
Granted
Application number
CA2063591A
Other languages
French (fr)
Other versions
CA2063591C (en
Inventor
Bruce F. Griggs
Thomas P. Gandek
Michael A. Pikulin
Allen Rosen
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.)
Union Camp Patent Holding Inc
Original Assignee
Individual
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=22220868&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2063591(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Publication of CA2063591A1 publication Critical patent/CA2063591A1/en
Application granted granted Critical
Publication of CA2063591C publication Critical patent/CA2063591C/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16
    • 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
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • 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
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Detergent Compositions (AREA)

Abstract

A process for delignifying and bleaching a lignocellulosic pulp without the use of elemental chlorine by partially delignifying the pulp to a K No. of about 10 or less and a viscosity of greater than about 13 cps; and further delignifying the partially delignified pulp with an effective amount of ozone for a sufficient time to obtain a substantially delignified pulp having a K No. of about 5 or less, a viscosity of greater than about 10, and a GE
rightness of at least about 50 %. The substantially delignified pulp may be brightened by the addition of a bleaching agent such as chlorine dioxide or a peroxide to obtain a final product having a GE brightness of at least about 65 %, preferably abovt 70 % to as high as 90 %.
Because of the absence of a elemental chlorine in this sequence, filtrate from all stages but the chlorine dioxide stage (if used) can be recovered without sewering. Major environmental improvements are thus achieved.
CA002063591A 1990-05-17 1990-05-17 Environmentally improved process for bleaching lignocellulosic materials Expired - Lifetime CA2063591C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1990/002823 WO1991018145A1 (en) 1990-05-17 1990-05-17 Environmentally improved process for bleaching lignocellulosic materials

Publications (2)

Publication Number Publication Date
CA2063591A1 true CA2063591A1 (en) 1991-11-18
CA2063591C CA2063591C (en) 1998-02-03

Family

ID=22220868

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002063591A Expired - Lifetime CA2063591C (en) 1990-05-17 1990-05-17 Environmentally improved process for bleaching lignocellulosic materials

Country Status (16)

Country Link
EP (1) EP0483163B1 (en)
JP (1) JP2825346B2 (en)
KR (1) KR920703922A (en)
CN (1) CN1043798C (en)
AT (1) ATE122421T1 (en)
AU (1) AU638017B2 (en)
BR (1) BR9007533A (en)
CA (1) CA2063591C (en)
DE (1) DE69019350T2 (en)
ES (1) ES2073027T3 (en)
NO (1) NO300929B1 (en)
PT (1) PT98487B (en)
RU (1) RU2102547C1 (en)
SE (1) SE9200107L (en)
WO (1) WO1991018145A1 (en)
ZA (1) ZA915969B (en)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5472572A (en) * 1990-10-26 1995-12-05 Union Camp Patent Holding, Inc. Reactor for bleaching high consistency pulp with ozone
US5441603A (en) * 1990-05-17 1995-08-15 Union Camp Patent Holding, Inc. Method for chelation of pulp prior to ozone delignification
US5328564A (en) * 1990-09-17 1994-07-12 Kamyr, Inc. Modified digestion of paper pulp followed by ozone bleaching
BR9205490A (en) * 1991-01-03 1994-04-05 Union Camp Patent Holding Processes for the manufacture of bleached pulp having a final GE britho of at least about 75 and for the delignification and bleaching of a lignocellulosic pulp
SE468355B (en) * 1991-04-30 1992-12-21 Eka Nobel Ab CHEMISTRY OF CHEMICAL MASS THROUGH TREATMENT WITH COMPLEX PICTURES AND OZONE
DE69221385T2 (en) * 1991-05-24 1997-12-11 Union Camp Patent Holding, Inc., Wilmington, Del. Two-stage pulp bleaching reactor and method for bleaching with ozone
US5364503A (en) * 1992-02-20 1994-11-15 Macmillan Bloedel Limited Nitric oxide treatment for ozone bleaching
CA2089516A1 (en) * 1992-02-21 1993-08-22 Kaj Henricson Chlorine free pulping and bleaching sequence
SE9201477L (en) * 1992-05-11 1993-06-28 Kamyr Ab SEATING WHITE PILLOW WITHOUT USING CHLORIC CHEMICALS
CA2144433A1 (en) * 1992-10-01 1994-04-14 Thomas P. Gandek Improved bleaching of high consistency lignocellulosic pulp
US5403441A (en) * 1992-11-13 1995-04-04 Union Camp Patent Holding, Inc. Method for controlling an ozone bleaching process
SE501613C2 (en) * 1993-08-03 1995-03-27 Kvaerner Pulping Tech Method of integrating bleaching and recycling in pulp production
WO1995006772A1 (en) * 1993-09-02 1995-03-09 Union Camp Patent Holding, Inc. Improved method for bleaching lignocellulosic pulp
BR9407457A (en) * 1993-09-03 1996-11-12 Union Camp Patent Holding Process for the preparation of a targeted pulp having a certain luster and a certain resistance as indicated by a certain viscosity
US5810973A (en) * 1993-09-21 1998-09-22 Beloit Technologies, Inc. Apparatus for producing small particles from high consistency wood pulp
SE502172C2 (en) * 1993-12-15 1995-09-04 Mo Och Domsjoe Ab Process for the preparation of bleached cellulose pulp with a chlorine-free bleaching sequence in the presence of carbonate
EP0831170A3 (en) * 1994-06-27 1998-11-11 Champion International Corporation Improved process for recycling bleach plant filtrate
US5672247A (en) * 1995-03-03 1997-09-30 Union Camp Patent Holding, Inc. Control scheme for rapid pulp delignification and bleaching
US5736004A (en) * 1995-03-03 1998-04-07 Union Camp Patent Holding, Inc. Control scheme for rapid pulp delignification and bleaching
US5944952A (en) * 1995-07-26 1999-08-31 Beloit Technologies, Inc. Method for bleaching high consistency pulp with a gaseous bleaching reagent
CN1050642C (en) * 1996-06-25 2000-03-22 华南理工大学 Everyday production 30-150 ton high concentration paper pulp bleaching method by using hydrogen peroxide
US6077396A (en) * 1997-05-16 2000-06-20 Lariviere; Christopher J. Apparatus for fluffing and contacting high consistancy wood pulp with a gaseous bleaching reagent
ID23571A (en) * 1997-08-25 2000-05-04 Praxair Technology Inc METHOD OF OZONE APPLICATION IN ECF BLEACHING
FR2910027B1 (en) * 2006-12-13 2009-11-06 Itt Mfg Enterprises Inc PROCESS FOR WHITENING CHEMICAL STRIPPING PASTES BY FINAL OZONE TREATMENT AT HIGH TEMPERATURE
FI119062B (en) * 2006-12-28 2008-07-15 Upm Kymmene Corp Process for the manufacture of mechanical pulp
JP4973284B2 (en) * 2007-03-30 2012-07-11 栗田工業株式会社 Pulp cleaning agent, pulp manufacturing method, and pulp cleaning method
US8497097B2 (en) * 2010-08-11 2013-07-30 Georgia Tech Research Corporation Chlorine dioxide treatment of biomass feedstock
CN104313933A (en) * 2014-09-23 2015-01-28 华南理工大学 Green bleaching method of sulfate bagasse slurry
CN115584653B (en) * 2022-12-12 2023-03-10 河南禾力能源有限公司 Method for extracting alpha-cellulose by furfural residues

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1090510A (en) * 1976-06-02 1980-12-02 Arthur W. Kempf Delignification and bleaching of a lignocellulosic pulp slurry with ozone
JPS5390402A (en) * 1977-01-12 1978-08-09 Kogyo Gijutsuin Pulp bleaching method
FI67413C (en) * 1977-04-27 1985-03-11 Myrens Verksted As FOERFARANDE FOER BEHANDLING AV FINFOERDELAD FIBERHALTIG ELLER CELLULOSAHALTIG MASS SAMT ANORDNING FOER UTFOERANDE AV FOERFARANDET
US4216054A (en) * 1977-09-26 1980-08-05 Weyerhaeuser Company Low-consistency ozone delignification
NO142091C (en) * 1977-10-17 1980-06-25 Myrens Verksted As PROCEDURE FOR OZONE TREATMENT OF REFINO MECHANICAL AND THERMOMECHANICAL MASS.
JPS5679797A (en) * 1979-11-30 1981-06-30 Weyerhaeuser Co Bleaching of cellulose fiber
US4619733A (en) * 1983-11-30 1986-10-28 Kooi Boon Lam Pollution free pulping process using recycled wash effluent from multiple bleach stages to remove black liquor and recovering sodium hydroxide from the black liquor
US4806203A (en) * 1985-02-14 1989-02-21 Elton Edward F Method for alkaline delignification of lignocellulosic fibrous material at a consistency which is raised during reaction
CA2015296C (en) * 1989-05-31 2001-08-07 Karnail Atwal Pyranyl cyanoguanidine derivatives
CA2053035C (en) * 1990-10-12 1997-09-30 Repap Enterprises Inc. Chlorine-free wood pulps and process of making

Also Published As

Publication number Publication date
CN1043798C (en) 1999-06-23
SE9200107L (en) 1992-03-13
AU5676890A (en) 1991-12-10
DE69019350D1 (en) 1995-06-14
EP0483163A1 (en) 1992-05-06
WO1991018145A1 (en) 1991-11-28
JPH05500243A (en) 1993-01-21
NO300929B1 (en) 1997-08-18
ZA915969B (en) 1992-04-29
EP0483163A4 (en) 1992-08-05
NO920217D0 (en) 1992-01-16
CA2063591C (en) 1998-02-03
PT98487B (en) 1998-06-30
ES2073027T3 (en) 1995-08-01
DE69019350T2 (en) 1996-02-15
EP0483163B1 (en) 1995-05-10
ATE122421T1 (en) 1995-05-15
SE9200107D0 (en) 1992-01-15
RU2102547C1 (en) 1998-01-20
KR920703922A (en) 1992-12-18
JP2825346B2 (en) 1998-11-18
NO920217L (en) 1992-03-05
PT98487A (en) 1993-01-29
AU638017B2 (en) 1993-06-17
BR9007533A (en) 1992-04-28
CN1069304A (en) 1993-02-24

Similar Documents

Publication Publication Date Title
CA2063591A1 (en) Environmentally Improved Process for Bleaching Lignocellulosic Materials
MY105354A (en) Bleach catalysts and compositions containing same
ES2063254T3 (en) DELIGNIFICATION WITH OXYGEN AND ENZYMATIC TREATMENT.
CA2270524A1 (en) Method of producing pulp using single-stage cooking with formic acid and washing with performic acid
ES2094465T3 (en) PROCEDURE FOR THE WHITENING OF A CHEMICAL PAPER PULP.
SE9401125D0 (en) Process for preparing bleached cellulose pulp
CA2157109A1 (en) Method of bleaching pulp with chlorine-free chemicals
CA2031848A1 (en) Method of bleaching pulp
CA2014563A1 (en) Hydrogen peroxide reinforced oxygen delignification
FI921254A0 (en) TILLVERKNING AV MASS.
CA2040867A1 (en) Reduction of halogenated organic compounds in spent bleach liquor
AU7235691A (en) Process for bleaching of ligno-cellulosic material
SE0004438L (en) Environmentally friendly fiber line for the production of bleached chemical pulp
NO166244C (en) PROCEDURE FOR GETTING UP OF HIGHLY LIGNOCELLULOS MASSES AND HIGHLY MECHANICAL LIGNOCELLULOSMASSES.
MY111246A (en) Environmentally improved process for bleaching lignocellulosic materials.
FI964632A0 (en) Method for removing metal compositions from lignocellulosic stocks
AU6537690A (en) High efficiency chlorine dioxide pulp bleaching process
AU1467892A (en) High efficiency chlorine dioxide pulp bleaching process
CA2031850A1 (en) Method of bleaching pulp
SE9600773D0 (en) Medium consistency ozone brightening or high consistency ozone bleached pulp
MY110586A (en) Improved bleaching of high consistency lignocellulosic pulp
AU6540294A (en) Method and apparatus for use in the press or dryer section of a paper machine or similar equipment
ES8503757A1 (en) Thermo-mechanical digestion using bleaching agent
SE8803553A (en)
CA2121969A1 (en) Pre-Treatment of Sulfite Pulp Before Bleaching with Oxygen Containing Chemicals

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed
MKEC Expiry (correction)
MKEC Expiry (correction)

Effective date: 20121202