ATA316478A - Verfahren zur herstellung von nadelholzzell- stoffen - Google Patents

Verfahren zur herstellung von nadelholzzell- stoffen

Info

Publication number
ATA316478A
ATA316478A AT783164A AT316478A ATA316478A AT A316478 A ATA316478 A AT A316478A AT 783164 A AT783164 A AT 783164A AT 316478 A AT316478 A AT 316478A AT A316478 A ATA316478 A AT A316478A
Authority
AT
Austria
Prior art keywords
wood cell
producing needle
needle wood
fabrics
cell fabrics
Prior art date
Application number
AT783164A
Other languages
English (en)
Other versions
AT364908B (de
Inventor
Rudolf Dr Patt
Original Assignee
Escher Wyss 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
Priority to AT267478A priority Critical patent/AT356092B/de
Priority to AT267578A priority patent/AT356093B/de
Priority to AT267678A priority patent/AT356094B/de
Application filed by Escher Wyss Ag filed Critical Escher Wyss Ag
Publication of ATA316478A publication Critical patent/ATA316478A/de
Application granted granted Critical
Publication of AT364908B publication Critical patent/AT364908B/de

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
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • D21C1/06—Pretreatment of the finely-divided materials before digesting with alkaline reacting compounds
    • 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
    • D21C3/04—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides
    • D21C3/06—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites
    • D21C3/10—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites magnesium bisulfite
AT0316478A 1974-04-25 1978-05-02 Verfahren zur herstellung von nadelholzzellstoffen AT364908B (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT267478A AT356092B (de) 1974-04-25 1978-04-17 Verfahren zur herstellung von neuen, heterocyclisch substituierten 5-sulfamoyl- benzoesaeurederivaten und ihren salzen
AT267578A AT356093B (de) 1974-04-25 1978-04-17 Verfahren zur herstellung von neuen, heterocyclisch substituierten 5-sulfamoyl- benzoesaeurederivaten und ihren salzen
AT267678A AT356094B (de) 1974-04-25 1978-04-17 Verfahren zur herstellung von neuen, heterocyclisch substituierten 5-sulfamoyl- benzoesaeurederivaten und ihren salzen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH548977 1977-05-03

Publications (2)

Publication Number Publication Date
ATA316478A true ATA316478A (de) 1981-04-15
AT364908B AT364908B (de) 1981-11-25

Family

ID=4294440

Family Applications (1)

Application Number Title Priority Date Filing Date
AT0316478A AT364908B (de) 1974-04-25 1978-05-02 Verfahren zur herstellung von nadelholzzellstoffen

Country Status (6)

Country Link
JP (1) JPS53139802A (de)
AT (1) AT364908B (de)
BR (1) BR7802645A (de)
CA (1) CA1101616A (de)
FI (1) FI781351A (de)
SE (1) SE7805124L (de)

Also Published As

Publication number Publication date
BR7802645A (pt) 1978-12-12
JPS53139802A (en) 1978-12-06
FI781351A (fi) 1978-11-04
AT364908B (de) 1981-11-25
SE7805124L (sv) 1978-11-04
CA1101616A (en) 1981-05-26

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee
ELJ Ceased due to non-payment of the annual fee