FR915778A - Improvements to bleaching cellulosic materials - Google Patents

Improvements to bleaching cellulosic materials

Info

Publication number
FR915778A
FR915778A FR915778DA FR915778A FR 915778 A FR915778 A FR 915778A FR 915778D A FR915778D A FR 915778DA FR 915778 A FR915778 A FR 915778A
Authority
FR
France
Prior art keywords
cellulosic materials
bleaching cellulosic
bleaching
materials
cellulosic
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
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.)
Mathieson Alkali Works Inc
Original Assignee
Mathieson Alkali Works Inc
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 Mathieson Alkali Works Inc filed Critical Mathieson Alkali Works Inc
Application granted granted Critical
Publication of FR915778A publication Critical patent/FR915778A/en
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
    • D21C9/1036—Use of compounds accelerating or improving the efficiency of the processes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
    • D06L4/20—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen
    • D06L4/22—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen using inorganic agents
    • D06L4/24—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen using inorganic agents using chlorites or chlorine dioxide
    • D06L4/26—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen using inorganic agents using chlorites or chlorine dioxide combined with specific additives
    • 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
    • D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
    • D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Textile Engineering (AREA)
  • Paper (AREA)
FR915778D 1941-10-08 1945-10-12 Improvements to bleaching cellulosic materials Expired FR915778A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US414139A US2367771A (en) 1941-10-08 1941-10-08 Bleaching cellulosic materials

Publications (1)

Publication Number Publication Date
FR915778A true FR915778A (en) 1946-11-18

Family

ID=23640113

Family Applications (1)

Application Number Title Priority Date Filing Date
FR915778D Expired FR915778A (en) 1941-10-08 1945-10-12 Improvements to bleaching cellulosic materials

Country Status (4)

Country Link
US (1) US2367771A (en)
DE (1) DE843807C (en)
FR (1) FR915778A (en)
GB (1) GB561022A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE916205C (en) * 1947-12-26 1954-08-05 Courtaulds Ltd Process for the production of artificial structures from viscose
EP0641855A1 (en) * 1993-09-04 1995-03-08 Hoechst Aktiengesellschaft Alcaline chlorite-based bleaching agent

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE23218E (en) * 1945-02-21 1950-04-11 Catalytic bleaching with chlorites
LU28660A1 (en) * 1946-12-21
US3257324A (en) * 1955-04-20 1966-06-21 Colgate Palmolive Co Solid bleach composition and method of making and using same
US3063782A (en) * 1960-02-29 1962-11-13 Olin Mathieson Bleaching cellulosic materials
US3790343A (en) * 1971-12-10 1974-02-05 S Ikeda Method for bleaching fibrous materials and compositions therefor
JPS5167472A (en) * 1974-12-06 1976-06-11 Santo Tekkosho Kk Senihinno hyohakuhoho
DE2657192B1 (en) * 1976-12-17 1978-06-08 Degussa Process for cleaning waste water containing phenol and phenol / formaldehyde
US4241093A (en) * 1978-05-11 1980-12-23 U and I, Incorporated Food supplement from vegetable pulp and method of preparing same
WO1988009622A1 (en) * 1987-06-04 1988-12-15 American Crystal Sugar Company Method of removing oxalic acid and/or sulfite from sugarbeets
US5112638A (en) * 1989-09-11 1992-05-12 American Crystal Sugar Company Process for the improvement of edible fiber and product
US5137744A (en) * 1989-09-11 1992-08-11 American Crystal Sugar Company Process and system for the improvement of edible fiber and product
EP0881326B1 (en) * 1997-05-30 2001-10-17 Papierfabrik Schoeller & Hoesch Gmbh & Co. Kg Process for producing bleached special cellulose pulps

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE916205C (en) * 1947-12-26 1954-08-05 Courtaulds Ltd Process for the production of artificial structures from viscose
EP0641855A1 (en) * 1993-09-04 1995-03-08 Hoechst Aktiengesellschaft Alcaline chlorite-based bleaching agent

Also Published As

Publication number Publication date
DE843807C (en) 1952-07-14
US2367771A (en) 1945-01-23
GB561022A (en) 1944-05-02

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