CH578652A5 - - Google Patents

Info

Publication number
CH578652A5
CH578652A5 CH1266973A CH1266973A CH578652A5 CH 578652 A5 CH578652 A5 CH 578652A5 CH 1266973 A CH1266973 A CH 1266973A CH 1266973 A CH1266973 A CH 1266973A CH 578652 A5 CH578652 A5 CH 578652A5
Authority
CH
Switzerland
Application number
CH1266973A
Original Assignee
Ciba Geigy 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 Ciba Geigy Ag filed Critical Ciba Geigy Ag
Priority to CH1266973A priority Critical patent/CH578652A5/xx
Priority to DE2441021A priority patent/DE2441021A1/de
Priority to AT709674A priority patent/AT339724B/de
Publication of CH578652A5 publication Critical patent/CH578652A5/xx

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
    • D21C9/08—Removal of fats, resins, pitch or waxes; Chemical or physical purification, i.e. refining, of crude cellulose by removing non-cellulosic contaminants, optionally combined with bleaching
    • D21C9/086—Removal of fats, resins, pitch or waxes; Chemical or physical purification, i.e. refining, of crude cellulose by removing non-cellulosic contaminants, optionally combined with bleaching with organic compounds or compositions comprising organic compounds

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
CH1266973A 1973-09-04 1973-09-04 CH578652A5 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CH1266973A CH578652A5 (de) 1973-09-04 1973-09-04
DE2441021A DE2441021A1 (de) 1973-09-04 1974-08-27 Entfernung bzw. unschaedlichmachung natuerlicher harze in holzfaserstoff
AT709674A AT339724B (de) 1973-09-04 1974-09-03 Entfernung bzw. unschadlichmachung naturlicher harze in holzfaserstoff

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1266973A CH578652A5 (de) 1973-09-04 1973-09-04

Publications (1)

Publication Number Publication Date
CH578652A5 true CH578652A5 (de) 1976-08-13

Family

ID=4385285

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1266973A CH578652A5 (de) 1973-09-04 1973-09-04

Country Status (3)

Country Link
AT (1) AT339724B (de)
CH (1) CH578652A5 (de)
DE (1) DE2441021A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1249903A (en) * 1984-05-10 1989-02-14 Christopher C. Mollett Composition and method of deinking of recycled cellulosic material

Also Published As

Publication number Publication date
DE2441021A1 (de) 1975-03-13
ATA709674A (de) 1977-02-15
AT339724B (de) 1977-11-10

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Legal Events

Date Code Title Description
PL Patent ceased
PL Patent ceased