AU469963B2 - Treatment of cellulosic matter with activated nitrogen or other activated gases - Google Patents

Treatment of cellulosic matter with activated nitrogen or other activated gases

Info

Publication number
AU469963B2
AU469963B2 AU56214/73A AU5621473A AU469963B2 AU 469963 B2 AU469963 B2 AU 469963B2 AU 56214/73 A AU56214/73 A AU 56214/73A AU 5621473 A AU5621473 A AU 5621473A AU 469963 B2 AU469963 B2 AU 469963B2
Authority
AU
Australia
Prior art keywords
activated
treatment
gases
nitrogen
cellulosic matter
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
AU56214/73A
Other versions
AU5621473A (en
Inventor
WIEDERGOTT DAVID W. CLAYTON THOMAS JOACHIMIDES and JOSEPH MEKKA NORMAN
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
Publication of AU5621473A publication Critical patent/AU5621473A/en
Application granted granted Critical
Publication of AU469963B2 publication Critical patent/AU469963B2/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
    • D21C9/1063—Bleaching ; Apparatus therefor with compounds not otherwise provided for, e.g. activated gases

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
AU56214/73A 1972-05-29 1973-05-28 Treatment of cellulosic matter with activated nitrogen or other activated gases Expired AU469963B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA143,298A CA973660A (en) 1972-05-29 1972-05-29 Treatment of cellulosic matter with active nitrogen
CACA143,298 1972-05-29

Publications (2)

Publication Number Publication Date
AU5621473A AU5621473A (en) 1974-11-28
AU469963B2 true AU469963B2 (en) 1976-02-26

Family

ID=4093395

Family Applications (1)

Application Number Title Priority Date Filing Date
AU56214/73A Expired AU469963B2 (en) 1972-05-29 1973-05-28 Treatment of cellulosic matter with activated nitrogen or other activated gases

Country Status (11)

Country Link
US (1) US3806404A (en)
JP (1) JPS5034642B2 (en)
AR (1) AR200489A1 (en)
AU (1) AU469963B2 (en)
BR (1) BR7303947D0 (en)
CA (1) CA973660A (en)
DE (1) DE2327407C3 (en)
FR (1) FR2186572B1 (en)
IT (1) IT1000024B (en)
SE (1) SE396970B (en)
SU (1) SU578015A3 (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2255418B1 (en) * 1973-12-21 1976-05-07 Europeen Cellulose
JPS5528902Y2 (en) * 1976-03-11 1980-07-10
JPS52120260U (en) * 1976-03-11 1977-09-12
US4080249A (en) * 1976-06-02 1978-03-21 International Paper Company Delignification and bleaching of a lignocellulosic pulp slurry with ozone
US4216054A (en) 1977-09-26 1980-08-05 Weyerhaeuser Company Low-consistency ozone delignification
US4410397A (en) * 1978-04-07 1983-10-18 International Paper Company Delignification and bleaching process and solution for lignocellulosic pulp with peroxide in the presence of metal additives
US4427490A (en) 1978-04-07 1984-01-24 International Paper Company Delignification and bleaching process for lignocellulosic pulp with peroxide in the presence of metal additives
US4372812A (en) * 1978-04-07 1983-02-08 International Paper Company Chlorine free process for bleaching lignocellulosic pulp
JPS5949446B2 (en) * 1978-12-25 1984-12-03 日本精工株式会社 Self-aligning device for clutch release bearing device
US4294654A (en) * 1980-03-21 1981-10-13 International Paper Company Delignification and bleaching of lignocellulosic pulp via photo-oxygenation
EP0112377B1 (en) * 1982-06-24 1986-11-12 Scott Paper Company Ozone bleaching of cellulosic materials
GR81673B (en) * 1983-05-06 1984-12-12 Personal Products Co
US4597930A (en) * 1983-07-11 1986-07-01 Szal John R Method of manufacture of a felted fibrous product from a nonaqueous medium
JPS634434U (en) * 1986-06-26 1988-01-12
JPS6440723A (en) * 1987-08-07 1989-02-13 Nippon Seiko Kk Clutch release bearing device
US5139613A (en) * 1988-01-21 1992-08-18 Canadian Liquid Air Limited Process for preparing a paper pulp using carbon dioxide as an acidifying agent for a bleached pulp
US5770010A (en) * 1995-04-20 1998-06-23 R-J Holding Company Pulping process employing nascent oxygen
FI110533B (en) * 2000-05-04 2003-02-14 Aga Ab Method for controlling microbial growth
DE102005049230A1 (en) * 2005-06-16 2006-12-28 Siemens Ag Process for the treatment of unwoven fibrous materials and apparatus for bleaching
DE102005049274A1 (en) * 2005-06-16 2006-12-28 Siemens Ag Process for the treatment of a process material with large-area plasma
DE102005049231A1 (en) * 2005-06-16 2006-12-28 Siemens Ag Process for the treatment of a process material in the production of paper, cardboard or cardboard
DE102006024404A1 (en) * 2006-05-24 2007-11-29 Siemens Ag Method for improving the quality of a fiber suspension
US20090090478A1 (en) * 2007-10-05 2009-04-09 Hollomon Martha G Selectivity improvement in oxygen delignification and bleaching of lignocellulose pulp using singlet oxygen

Also Published As

Publication number Publication date
DE2327407B2 (en) 1977-10-13
US3806404A (en) 1974-04-23
DE2327407C3 (en) 1978-06-08
FR2186572A1 (en) 1974-01-11
SU578015A3 (en) 1977-10-25
SE396970B (en) 1977-10-10
BR7303947D0 (en) 1974-07-18
AU5621473A (en) 1974-11-28
DE2327407A1 (en) 1973-12-13
FR2186572B1 (en) 1976-09-17
JPS5034642B2 (en) 1975-11-10
AR200489A1 (en) 1974-11-15
CA973660A (en) 1975-09-02
JPS4966902A (en) 1974-06-28
IT1000024B (en) 1976-03-30

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