CA943707A - Delignification of chemical cellulosic pulp - Google Patents

Delignification of chemical cellulosic pulp

Info

Publication number
CA943707A
CA943707A CA114,066A CA114066A CA943707A CA 943707 A CA943707 A CA 943707A CA 114066 A CA114066 A CA 114066A CA 943707 A CA943707 A CA 943707A
Authority
CA
Canada
Prior art keywords
delignification
cellulosic pulp
chemical cellulosic
chemical
pulp
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
CA114,066A
Other languages
English (en)
Other versions
CA114066S (en
Inventor
Raimbault M.A. Testard De Montigny
Norman Liebergott
David W. Clayton
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.)
Pulp and Paper Research Institute of Canada
Original Assignee
Pulp and Paper Research Institute of Canada
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 Pulp and Paper Research Institute of Canada filed Critical Pulp and Paper Research Institute of Canada
Application granted granted Critical
Publication of CA943707A publication Critical patent/CA943707A/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
    • D21C9/1068—Bleaching ; Apparatus therefor with O2
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
CA114,066A 1970-05-28 1971-05-27 Delignification of chemical cellulosic pulp Expired CA943707A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2562770 1970-05-28

Publications (1)

Publication Number Publication Date
CA943707A true CA943707A (en) 1974-03-19

Family

ID=10230731

Family Applications (1)

Application Number Title Priority Date Filing Date
CA114,066A Expired CA943707A (en) 1970-05-28 1971-05-27 Delignification of chemical cellulosic pulp

Country Status (5)

Country Link
JP (1) JPS4938922B1 (cg-RX-API-DMAC7.html)
CA (1) CA943707A (cg-RX-API-DMAC7.html)
FR (1) FR2093816A5 (cg-RX-API-DMAC7.html)
GB (1) GB1310835A (cg-RX-API-DMAC7.html)
SE (1) SE358680B (cg-RX-API-DMAC7.html)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4002526A (en) * 1975-10-10 1977-01-11 International Paper Company Oxygen-alkali delignification of low consistency wood pulp
US9206446B2 (en) 2006-05-01 2015-12-08 Board Of Trustees Of Michigan State University Extraction of solubles from plant biomass for use as microbial growth stimulant and methods related thereto
US8968515B2 (en) 2006-05-01 2015-03-03 Board Of Trustees Of Michigan State University Methods for pretreating biomass
US8945245B2 (en) 2009-08-24 2015-02-03 The Michigan Biotechnology Institute Methods of hydrolyzing pretreated densified biomass particulates and systems related thereto
US10457810B2 (en) 2009-08-24 2019-10-29 Board Of Trustees Of Michigan State University Densified biomass products containing pretreated biomass fibers
EP2411492B1 (en) 2009-08-24 2014-10-22 Board Of Trustees Of Michigan State University Pretreated densified biomass products and methods of making and using same
BR112012026710B8 (pt) 2010-04-19 2020-06-23 Univ Michigan State método para produzir um produto extraído a partir de biomassa lignocelulósica e método para produzir um produto digerido a partir de biomassa lignocelulósica
US10202660B2 (en) 2012-03-02 2019-02-12 Board Of Trustees Of Michigan State University Methods for increasing sugar yield with size-adjusted lignocellulosic biomass particles
US10730958B2 (en) 2017-03-08 2020-08-04 Board Of Trustees Of Michigan State University Pretreatment of densified biomass using liquid ammonia and systems and products related thereto
US11440999B2 (en) 2017-07-07 2022-09-13 Board Of Trustees Of Michigan State University De-esterification of biomass prior to ammonia pretreatment

Also Published As

Publication number Publication date
FR2093816A5 (cg-RX-API-DMAC7.html) 1972-01-28
SE358680B (cg-RX-API-DMAC7.html) 1973-08-06
GB1310835A (en) 1973-03-21
JPS4938922B1 (cg-RX-API-DMAC7.html) 1974-10-22

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