FR950559A - Perfectionnements au blanchiment des pulpes de bois - Google Patents

Perfectionnements au blanchiment des pulpes de bois

Info

Publication number
FR950559A
FR950559A FR950559DA FR950559A FR 950559 A FR950559 A FR 950559A FR 950559D A FR950559D A FR 950559DA FR 950559 A FR950559 A FR 950559A
Authority
FR
France
Prior art keywords
wood pulp
pulp bleaching
bleaching
wood
pulp
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)
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Application granted granted Critical
Publication of FR950559A publication Critical patent/FR950559A/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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
FR950559D 1946-03-30 1947-07-31 Perfectionnements au blanchiment des pulpes de bois Expired FR950559A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US658585A US2492047A (en) 1946-03-30 1946-03-30 Bleaching wood pulp

Publications (1)

Publication Number Publication Date
FR950559A true FR950559A (fr) 1949-09-30

Family

ID=24641845

Family Applications (1)

Application Number Title Priority Date Filing Date
FR950559D Expired FR950559A (fr) 1946-03-30 1947-07-31 Perfectionnements au blanchiment des pulpes de bois

Country Status (3)

Country Link
US (1) US2492047A (fr)
FR (1) FR950559A (fr)
GB (1) GB624244A (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2692181A (en) * 1950-03-08 1954-10-19 Buffalo Electro Chem Co Treatment of unbleached sulfite pulp
US2661261A (en) * 1950-06-30 1953-12-01 Buffalo Electro Chem Co Method of superbleaching chemical pulp
US2777749A (en) * 1953-05-29 1957-01-15 Du Pont Process for application of hydrogen peroxide to materials
US2859087A (en) * 1955-03-28 1958-11-04 Du Pont Process for bleaching webs of fibrous cellulose material with hydrogen peroxide vapor containing water vapor
US3023140A (en) * 1958-11-24 1962-02-27 Bauer Bros Co Pulp bleaching
GB1102456A (en) * 1964-08-13 1968-02-07 Electric Reduction Co Improvements in the bleaching of paper
US3458394A (en) * 1965-10-08 1969-07-29 Scott Paper Co Pulping wood chips with peracetic acid and chlorine dioxide
SE330819B (fr) * 1966-09-12 1970-11-30 Kamyr Ab
US3492199A (en) * 1966-10-04 1970-01-27 Fmc Corp Bleaching fluffed mechanical wood pulp with hydrogen peroxide
DE2219504C2 (de) * 1972-04-21 1974-10-03 Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt Mehrstufenbleiche von Zellstoffen mit erheblich reduziertem Chloreinsatz
GB2059469B (en) * 1979-09-26 1983-09-01 Reed International Ltd Washing fibre stock
JPS59154400A (ja) * 1983-02-23 1984-09-03 株式会社日立製作所 放射性汚染金属の除染方法
EP0214982A1 (fr) * 1984-05-15 1987-03-25 FLINCK, Karl-Evert Procede de blanchiment de pulpe fibreuse pour la production de papier et carton

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US872097A (en) * 1906-12-22 1907-11-26 Otto Goetze Process of bleaching cotton fibers.
US1106371A (en) * 1914-03-17 1914-08-11 Philip C Donner Art of carroting fur.
US1409799A (en) * 1921-06-17 1922-03-14 George M Trostel Method of bleaching pulp
US1529919A (en) * 1922-03-06 1925-03-17 Stebbins Engineering And Mfg C Pulp-bleaching method and apparatus
US1795757A (en) * 1928-03-14 1931-03-10 Bradley Mckeefe Corp Method of bleaching and process for preparing liquors therefor
US1907548A (en) * 1928-09-25 1933-05-09 Paper Patents Co Process of subjecting fibers to the action of gases
US1968994A (en) * 1931-04-08 1934-08-07 David B Davies Process of bleaching wood pulps and an apparatus for carrying out said process
US2194358A (en) * 1937-05-24 1940-03-19 Degussa Bleaching artificial textile fibers

Also Published As

Publication number Publication date
US2492047A (en) 1949-12-20
GB624244A (en) 1949-05-31

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