FR2186572A1 - - Google Patents

Info

Publication number
FR2186572A1
FR2186572A1 FR7319406A FR7319406A FR2186572A1 FR 2186572 A1 FR2186572 A1 FR 2186572A1 FR 7319406 A FR7319406 A FR 7319406A FR 7319406 A FR7319406 A FR 7319406A FR 2186572 A1 FR2186572 A1 FR 2186572A1
Authority
FR
France
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
FR7319406A
Other languages
French (fr)
Other versions
FR2186572B1 (enrdf_load_stackoverflow
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 FR2186572A1 publication Critical patent/FR2186572A1/fr
Application granted granted Critical
Publication of FR2186572B1 publication Critical patent/FR2186572B1/fr
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)
FR7319406A 1972-05-29 1973-05-29 Expired FR2186572B1 (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
FR2186572A1 true FR2186572A1 (enrdf_load_stackoverflow) 1974-01-11
FR2186572B1 FR2186572B1 (enrdf_load_stackoverflow) 1976-09-17

Family

ID=4093395

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7319406A Expired FR2186572B1 (enrdf_load_stackoverflow) 1972-05-29 1973-05-29

Country Status (11)

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

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2255418B1 (enrdf_load_stackoverflow) * 1973-12-21 1976-05-07 Europeen Cellulose
JPS52120260U (enrdf_load_stackoverflow) * 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
US4372812A (en) * 1978-04-07 1983-02-08 International Paper Company Chlorine free process for bleaching lignocellulosic pulp
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
US4294654A (en) * 1980-03-21 1981-10-13 International Paper Company Delignification and bleaching of lignocellulosic pulp via photo-oxygenation
WO1984000181A1 (en) * 1982-06-24 1984-01-19 Scott Paper Co Ozone bleaching of cellulosic materials
GR81673B (enrdf_load_stackoverflow) * 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 (enrdf_load_stackoverflow) * 1986-06-26 1988-01-12
JPS6440723A (en) * 1987-08-07 1989-02-13 Nippon Seiko Kk Clutch release bearing device
JPH0180829U (enrdf_load_stackoverflow) * 1987-11-18 1989-05-30
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 (fi) * 2000-05-04 2003-02-14 Aga Ab Menetelmä mikrobikasvun torjumiseksi
DE102005049230A1 (de) * 2005-06-16 2006-12-28 Siemens Ag Verfahren zur Behandlung unverwobener Faserstoffe und Vorrichtung zum Bleichen
DE102005049231A1 (de) * 2005-06-16 2006-12-28 Siemens Ag Verfahren zur Behandlung eines Prozessgutes bei der Herstellung von Papier, Karton oder Pappe
DE102005049274A1 (de) * 2005-06-16 2006-12-28 Siemens Ag Verfahren zur Behandlung eines Prozessgutes mit großflächigem Plasma
DE102006024404A1 (de) * 2006-05-24 2007-11-29 Siemens Ag Verfahren zur Verbesserung der Qualität einer Faser-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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Also Published As

Publication number Publication date
DE2327407A1 (de) 1973-12-13
SE396970B (sv) 1977-10-10
DE2327407B2 (de) 1977-10-13
BR7303947D0 (pt) 1974-07-18
FR2186572B1 (enrdf_load_stackoverflow) 1976-09-17
AU469963B2 (en) 1976-02-26
JPS5034642B2 (enrdf_load_stackoverflow) 1975-11-10
AU5621473A (en) 1974-11-28
IT1000024B (it) 1976-03-30
DE2327407C3 (de) 1978-06-08
SU578015A3 (ru) 1977-10-25
AR200489A1 (es) 1974-11-15
CA973660A (en) 1975-09-02
US3806404A (en) 1974-04-23
JPS4966902A (enrdf_load_stackoverflow) 1974-06-28

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Legal Events

Date Code Title Description
ST Notification of lapse