IT1055792B - Procedimento per la sbianca della cellulosa con impiego ridotto delcloro - Google Patents

Procedimento per la sbianca della cellulosa con impiego ridotto delcloro

Info

Publication number
IT1055792B
IT1055792B IT67078/76A IT6707876A IT1055792B IT 1055792 B IT1055792 B IT 1055792B IT 67078/76 A IT67078/76 A IT 67078/76A IT 6707876 A IT6707876 A IT 6707876A IT 1055792 B IT1055792 B IT 1055792B
Authority
IT
Italy
Prior art keywords
chlorine
cellulose
reduced use
whitening procedure
whitening
Prior art date
Application number
IT67078/76A
Other languages
English (en)
Italian (it)
Original Assignee
Degussa
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 Degussa filed Critical Degussa
Application granted granted Critical
Publication of IT1055792B publication Critical patent/IT1055792B/it

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
    • D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Cosmetics (AREA)
IT67078/76A 1975-08-30 1976-01-14 Procedimento per la sbianca della cellulosa con impiego ridotto delcloro IT1055792B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2538673A DE2538673C2 (de) 1975-08-30 1975-08-30 Bleichaufschluß von Zellstoff mit erheblich reduziertem Chloreinsatz

Publications (1)

Publication Number Publication Date
IT1055792B true IT1055792B (it) 1982-01-11

Family

ID=5955230

Family Applications (1)

Application Number Title Priority Date Filing Date
IT67078/76A IT1055792B (it) 1975-08-30 1976-01-14 Procedimento per la sbianca della cellulosa con impiego ridotto delcloro

Country Status (17)

Country Link
AR (1) AR221678A1 (de)
AT (1) AT340765B (de)
BE (1) BE836462R (de)
BR (1) BR7603006A (de)
CA (1) CA1080406A (de)
CH (1) CH620002A5 (de)
DE (1) DE2538673C2 (de)
ES (1) ES443318A1 (de)
FI (1) FI62869C (de)
FR (1) FR2322235A1 (de)
GB (1) GB1544216A (de)
IT (1) IT1055792B (de)
NL (1) NL7513942A (de)
NO (1) NO145344B (de)
SE (1) SE7602842L (de)
YU (1) YU37370B (de)
ZA (1) ZA757822B (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2416297A1 (fr) * 1978-01-31 1979-08-31 Europeen Cellulose Procede anti-polluant de blanchiment de pate a papier
FR2432574A1 (fr) * 1978-08-01 1980-02-29 Europeen Cellulose Procede de blanchiment de pate a papier
FR2572431B1 (fr) * 1984-10-25 1987-12-04 Centre Tech Ind Papier Procede pour la preparation des pates papetieres chimiques en vue du blanchiment.
EP0402335B2 (de) * 1989-06-06 2001-03-14 Eka Chemicals AB Verfahren zum Bleichen von Lignocellulose enthaltenden Zellstoffen
SE9001481L (sv) * 1990-04-23 1991-10-24 Eka Nobel Ab Reduktion av halogenorganiska foereningar i blekeriavlopp
SE466061B (sv) * 1990-04-23 1991-12-09 Eka Nobel Ab Blekning av kemisk massa genom behandling med foerst ett komplexbildande aemne och sedan ett peroxidinnehaallande aemne

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE753531C (de) * 1938-11-09 1953-05-18 Degussa Verfahren zum Bleichen von Zellstoff
DE2327900C3 (de) * 1973-06-01 1985-02-07 Degussa Ag, 6000 Frankfurt Bleichaufschluß von Zellstoff mit erheblich reduziertem Chloreinsatz

Also Published As

Publication number Publication date
BR7603006A (pt) 1977-05-31
NL7513942A (nl) 1977-03-02
ZA757822B (en) 1976-11-24
ES443318A1 (es) 1977-05-01
ATA861075A (de) 1977-04-15
NO145344B (no) 1981-11-23
BE836462R (fr) 1976-06-09
FI753314A (de) 1977-03-01
YU301275A (en) 1983-04-27
FR2322235B1 (de) 1979-04-06
GB1544216A (en) 1979-04-19
FI62869C (fi) 1983-03-10
CH620002A5 (en) 1980-10-31
FR2322235A1 (fr) 1977-03-25
FI62869B (fi) 1982-11-30
CA1080406A (en) 1980-07-01
AT340765B (de) 1978-01-10
NO754077L (de) 1977-03-01
YU37370B (en) 1984-08-31
DE2538673C2 (de) 1986-01-16
DE2538673A1 (de) 1977-03-03
SE7602842L (sv) 1977-03-01
AR221678A1 (es) 1981-03-13

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