FR2479295A2 - Procede de delignification de pate a papier chimique ecrue - Google Patents

Procede de delignification de pate a papier chimique ecrue Download PDF

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Publication number
FR2479295A2
FR2479295A2 FR8007170A FR8007170A FR2479295A2 FR 2479295 A2 FR2479295 A2 FR 2479295A2 FR 8007170 A FR8007170 A FR 8007170A FR 8007170 A FR8007170 A FR 8007170A FR 2479295 A2 FR2479295 A2 FR 2479295A2
Authority
FR
France
Prior art keywords
sep
oxidation
pressing
dough
peroxide
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
FR8007170A
Other languages
English (en)
French (fr)
Other versions
FR2479295B2 (enExample
Inventor
Jacques Carles
Henri Lemoyne
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.)
Europeen Cellulose
Groupement Europeen de la Cellulose
Original Assignee
Europeen Cellulose
Groupement Europeen de la Cellulose
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 Europeen Cellulose, Groupement Europeen de la Cellulose filed Critical Europeen Cellulose
Priority to FR8007170A priority Critical patent/FR2479295A2/fr
Priority to CA000349872A priority patent/CA1151363A/en
Priority to AU57450/80A priority patent/AU539108B2/en
Priority to OA57086A priority patent/OA06515A/xx
Priority to DE8080400516T priority patent/DE3061582D1/de
Priority to FI801211A priority patent/FI67242B/fi
Priority to AT80400516T priority patent/ATE2232T1/de
Priority to EP80400516A priority patent/EP0018287B1/fr
Priority to NZ193456A priority patent/NZ193456A/xx
Priority to BR8002356A priority patent/BR8002356A/pt
Publication of FR2479295A2 publication Critical patent/FR2479295A2/fr
Priority to US06/368,142 priority patent/US4462864A/en
Application granted granted Critical
Publication of FR2479295B2 publication Critical patent/FR2479295B2/fr
Granted 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
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
FR8007170A 1979-04-17 1980-03-31 Procede de delignification de pate a papier chimique ecrue Granted FR2479295A2 (fr)

Priority Applications (11)

Application Number Priority Date Filing Date Title
FR8007170A FR2479295A2 (fr) 1980-03-31 1980-03-31 Procede de delignification de pate a papier chimique ecrue
AU57450/80A AU539108B2 (en) 1979-04-17 1980-04-15 Delignification of unbleached chemical pulp
CA000349872A CA1151363A (en) 1979-04-17 1980-04-15 Process for the delignification of unbleached chemical pulp
DE8080400516T DE3061582D1 (en) 1979-04-17 1980-04-16 Process for the delignification of unbleached chemical paper pulp
FI801211A FI67242B (fi) 1979-04-17 1980-04-16 Saett att avlaegsna lignin fraon oblekt kemisk pappersmassa
AT80400516T ATE2232T1 (de) 1979-04-17 1980-04-16 Verfahren zur delignifizierung von ungebleichtem chemischem papierzellstoff.
OA57086A OA06515A (fr) 1979-04-17 1980-04-16 Procédé de délignification de pâte à papier chimique écrue.
EP80400516A EP0018287B1 (fr) 1979-04-17 1980-04-16 Procédé de délignification de pâte à papier chimique écrue
NZ193456A NZ193456A (en) 1979-04-17 1980-04-16 Peroxide delignification of unbleached chemical wood pulp
BR8002356A BR8002356A (pt) 1979-04-17 1980-04-16 Processo de deslignificacao de pasta de papel quimica crua
US06/368,142 US4462864A (en) 1979-04-17 1982-04-14 Process for the delignification of unbleached chemical pulp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8007170A FR2479295A2 (fr) 1980-03-31 1980-03-31 Procede de delignification de pate a papier chimique ecrue

Publications (2)

Publication Number Publication Date
FR2479295A2 true FR2479295A2 (fr) 1981-10-02
FR2479295B2 FR2479295B2 (enExample) 1982-12-10

Family

ID=9240315

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8007170A Granted FR2479295A2 (fr) 1979-04-17 1980-03-31 Procede de delignification de pate a papier chimique ecrue

Country Status (1)

Country Link
FR (1) FR2479295A2 (enExample)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA558246A (en) * 1958-06-03 L. Mcewen Robert High temperature pulp bleaching
US3313678A (en) * 1962-02-14 1967-04-11 Svenska Cellulose Aktiebolaget Bleaching of cellulose pulp in towers in completely filled and closed system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA558246A (en) * 1958-06-03 L. Mcewen Robert High temperature pulp bleaching
US3313678A (en) * 1962-02-14 1967-04-11 Svenska Cellulose Aktiebolaget Bleaching of cellulose pulp in towers in completely filled and closed system

Also Published As

Publication number Publication date
FR2479295B2 (enExample) 1982-12-10

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Legal Events

Date Code Title Description
TP Transmission of property
TP Transmission of property