FR1461003A - Procédé pour le blanchiment de pâtes de bois à faible teneur en cellulose - Google Patents

Procédé pour le blanchiment de pâtes de bois à faible teneur en cellulose

Info

Publication number
FR1461003A
FR1461003A FR41626A FR41626A FR1461003A FR 1461003 A FR1461003 A FR 1461003A FR 41626 A FR41626 A FR 41626A FR 41626 A FR41626 A FR 41626A FR 1461003 A FR1461003 A FR 1461003A
Authority
FR
France
Prior art keywords
wood pulp
cellulose wood
low cellulose
bleaching
bleaching low
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
FR41626A
Other languages
English (en)
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.)
FMC Corp
Original Assignee
FMC Corp
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 FMC Corp filed Critical FMC Corp
Application granted granted Critical
Publication of FR1461003A publication Critical patent/FR1461003A/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
    • D21C9/1084—Bleaching ; Apparatus therefor with reducing compounds

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
FR41626A 1964-12-16 1965-12-09 Procédé pour le blanchiment de pâtes de bois à faible teneur en cellulose Expired FR1461003A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US418911A US3384534A (en) 1964-12-16 1964-12-16 Bleaching of wood pulps with thiourea dioxide

Publications (1)

Publication Number Publication Date
FR1461003A true FR1461003A (fr) 1966-12-02

Family

ID=23660048

Family Applications (1)

Application Number Title Priority Date Filing Date
FR41626A Expired FR1461003A (fr) 1964-12-16 1965-12-09 Procédé pour le blanchiment de pâtes de bois à faible teneur en cellulose

Country Status (6)

Country Link
US (1) US3384534A (fr)
DE (1) DE1546252A1 (fr)
ES (1) ES320608A1 (fr)
FI (1) FI43670B (fr)
FR (1) FR1461003A (fr)
GB (1) GB1095279A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2639371A1 (fr) * 1988-11-24 1990-05-25 Atochem Procede de blanchiment de pates desencrees

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1079135A (en) * 1965-03-05 1967-08-16 Hardman & Holden Ltd Improvements relating to bleaching of wood pulp
US4244780A (en) * 1979-11-15 1981-01-13 Nalco Chemical Company Use of thiourea dioxide in pulp bleaching processes to preserve pulp strength and aid in brightness
DE3309956C1 (de) * 1983-03-19 1984-07-12 Degussa Ag, 6000 Frankfurt Verfahren zum Bleichen von Papierrohstoffen
JPS60142954A (ja) * 1983-12-29 1985-07-29 Tokai Denka Kogyo Kk 二酸化チオ尿素の活性化方法
US4675076A (en) * 1986-10-01 1987-06-23 Ppg Industries, Inc. Method for brightening pulp
US5958184A (en) * 1992-06-10 1999-09-28 Mitsubishi Gas Chemical Company Inc. Process for producing thiourea dioxide
AU660104B2 (en) * 1992-06-10 1995-06-08 Mitsubishi Gas Chemical Company, Inc. Process for producing thiourea dioxide and bleaching of papermaking pulp with thiourea dioxide produced thereby
US6428653B1 (en) 2000-12-04 2002-08-06 West Fraser Timber Co. Ltd. Method of bleaching with formamidine sulfinic acid using a reducing agent to eliminate residual peroxide
CN105177982B (zh) * 2015-10-15 2017-10-17 绍兴文理学院 一种黑发漂色方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2860944A (en) * 1955-11-28 1958-11-18 Du Pont Bleaching fibers of vegetable origin with formamidine sulfinate and alkaline peroxide

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2639371A1 (fr) * 1988-11-24 1990-05-25 Atochem Procede de blanchiment de pates desencrees
EP0374057A2 (fr) * 1988-11-24 1990-06-20 Elf Atochem S.A. Procédé de blanchiment de pâtes désencrées
EP0374057A3 (fr) * 1988-11-24 1991-07-10 Elf Atochem S.A. Procédé de blanchiment de pâtes désencrées

Also Published As

Publication number Publication date
GB1095279A (en) 1967-12-13
DE1546252A1 (de) 1970-04-30
FI43670B (fr) 1971-02-01
ES320608A1 (es) 1966-06-01
US3384534A (en) 1968-05-21

Similar Documents

Publication Publication Date Title
FR1379645A (fr) Procédé de blanchiment des matières cellulosiques
FR1441787A (fr) Procédé de blanchiment des pâtes à papier
FR1404605A (fr) Perfectionnement à la délignification des pâtes chimiques de cellulose
FR1484998A (fr) Procédé de blanchiment des matières cellulosiques
FR1461003A (fr) Procédé pour le blanchiment de pâtes de bois à faible teneur en cellulose
FR1443743A (fr) Procédé de blanchiment des pâtes cellulosiques
FR1542837A (fr) Procédé de séchage et de blanchiment des pâtes de bois mécaniques
DK109015C (da) Fremgangsmåde til reduktiv blegning af træpulp med lavt celluloseindhold.
OA00199A (fr) Procédé de blanchiment de la pâte de cellulose.
DK129952B (da) Fremgangsmåde til blegning af fibermateriale af naturlig cellulose.
FR1348777A (fr) Procédé de blanchiment de produits fibreux cellulosiques
FR1401122A (fr) Procédé de blanchiment de la pulpe de bois
FR1323187A (fr) Procédé de séchage des pulpes de betteraves
FR1468310A (fr) Procédé de blanchiment de pâtes de bois à faible teneur en cellulose
FI48367C (fi) Selluloosamassan valkaisumenetelmä.
AT266578B (de) Verfahren zum Bleichen von Holzschliff
FI50350C (fi) Monivaihemenetelmä selluloosamassan valkaisemiseksi.
FI45356C (fi) Paperimassan valkaisumenetelmä.
FR1388430A (fr) Procédé pour fabriquer de la pâte à papier
FR1397833A (fr) Procédé pour la production de pâte à papier par le raffinage de copeaux de bois
NL143295B (nl) Werkwijze ter bereiding van gebleekte cellulosepulp.
FR1452688A (fr) Procédé de production de pulpe de bois
FR1408842A (fr) Procédé de transformation de bois en pâte
FR1268321A (fr) Procédé de blanchiment de la pâte de bois
FR94026E (fr) Procédé de blanchiment des matieres cellulosiques.