FR1129498A - Procédé pour la préparation de la demi-cellulose blanchie - Google Patents

Procédé pour la préparation de la demi-cellulose blanchie

Info

Publication number
FR1129498A
FR1129498A FR1129498DA FR1129498A FR 1129498 A FR1129498 A FR 1129498A FR 1129498D A FR1129498D A FR 1129498DA FR 1129498 A FR1129498 A FR 1129498A
Authority
FR
France
Prior art keywords
bleached
cellulose
preparation
bleached half
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
Other languages
English (en)
French (fr)
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.)
Zellsloff Fabrik Waldhof AG
Original Assignee
Zellsloff Fabrik Waldhof AG
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 Zellsloff Fabrik Waldhof AG filed Critical Zellsloff Fabrik Waldhof AG
Application granted granted Critical
Publication of FR1129498A publication Critical patent/FR1129498A/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
    • D21C9/1026—Other features in bleaching processes
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • D21B1/14—Disintegrating in mills
    • D21B1/16—Disintegrating in mills in the presence of chemical agents
    • 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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Paper (AREA)
FR1129498D 1954-04-08 1955-03-25 Procédé pour la préparation de la demi-cellulose blanchie Expired FR1129498A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEZ4142A DE1034473B (de) 1954-04-08 1954-04-08 Verfahren zur Gewinnung von gebleichtem Halbzellstoff

Publications (1)

Publication Number Publication Date
FR1129498A true FR1129498A (fr) 1957-01-22

Family

ID=7619037

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1129498D Expired FR1129498A (fr) 1954-04-08 1955-03-25 Procédé pour la préparation de la demi-cellulose blanchie

Country Status (5)

Country Link
BE (1) BE536814A (enrdf_load_html_response)
CH (1) CH332820A (enrdf_load_html_response)
DE (1) DE1034473B (enrdf_load_html_response)
FR (1) FR1129498A (enrdf_load_html_response)
GB (1) GB785060A (enrdf_load_html_response)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4559103A (en) * 1982-08-05 1985-12-17 Honshu Seishi Kabushiki Kaisha Packaging paper and packaging material for packaging metallic material and method of producing the same
CA1240456A (en) * 1983-10-20 1988-08-16 Kamyr, Inc. Mechanical pulping

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE404506C (de) * 1921-12-01 1924-10-18 A Olier Sa Des Ets Verfahren und Einrichtung zur Herstellung von Zellstoff aus holzhaltigem Rohstoff
BE496841A (enrdf_load_html_response) * 1949-07-12
FR1033615A (fr) * 1951-01-25 1953-07-13 Azienda Brevetti Ind Perfectionnement à la fabrication de la pâte à papier semi-chimique
AT175782B (de) * 1951-02-28 1953-08-10 Waldhof Zellstoff Fab Verfahren zur Herstellung von Halbzellstoff

Also Published As

Publication number Publication date
GB785060A (en) 1957-10-23
DE1034473B (de) 1958-07-17
BE536814A (enrdf_load_html_response)
CH332820A (de) 1958-09-30

Similar Documents

Publication Publication Date Title
CH338460A (fr) Procédé de préparation de phénothiazines
FR1171947A (fr) Procédé de préparation de diaryl- ou d'arylthiényl-alcoylamines
FR1211341A (fr) Procédé pour la préparation de 2-amino-imidazolines
CH336078A (fr) Procédé de préparation de méthacrylamidoacylguanamines
FR1135482A (fr) Procédé pour la préparation de nouvelles cétones non saturées
FR1171912A (fr) Procédé pour la préparation de la 3-acétyl-4-hydroxycoumarine
FR1129498A (fr) Procédé pour la préparation de la demi-cellulose blanchie
FR1109586A (fr) Procédé pour la préparation de nu, nu-dibenzylaminoacides
FR1159180A (fr) Procédé de préparation de benzamides substituées
FR1131473A (fr) Procédé pour la préparation de ditolylméthane
FR1118332A (fr) Procédé pour la préparation de la pentaérythrite trichlorhydrine
FR1134798A (fr) Procédé pour la préparation de pseudo-irones
FR1179925A (fr) Procédé pour la préparation de 6, 10-diméthyl-undécanone-
FR1123630A (fr) Procédé de préparation de benzènesulfonylguanidines
FR1130278A (fr) Procédé de préparation d'aminoacylanilides
FR1148219A (fr) Procédé pour la préparation de la 4-stilbènaldéhyde
FR1122495A (fr) Procédé pour la préparation de la téréphtaldialdéhyde
FR1132536A (fr) Procédé pour la préparation de sulfonamides
FR1111933A (fr) Procédé pour la préparation de la phénylacétaldéhyde
FR1091146A (fr) Procédé pour la préparation de ferro-silicium
FR1187419A (fr) Procédé pour la préparation de solutions de blanchiment
FR1216222A (fr) Procédé pour la préparation de la cis-testostérone
CH355137A (fr) Procédé pour la préparation de la cyanoformamide
FR1161364A (fr) Procédé de préparation de nor-stéroïdes
FR1119351A (fr) Procédé pour la préparation de 6, 10-diméthyl-undécanone-(2)