AR221678A1 - Procedimiento de blanqueo de celulosa en varias etapas con utilizacion considerablemente reducida de cloro - Google Patents

Procedimiento de blanqueo de celulosa en varias etapas con utilizacion considerablemente reducida de cloro

Info

Publication number
AR221678A1
AR221678A1 AR261846A AR26184676A AR221678A1 AR 221678 A1 AR221678 A1 AR 221678A1 AR 261846 A AR261846 A AR 261846A AR 26184676 A AR26184676 A AR 26184676A AR 221678 A1 AR221678 A1 AR 221678A1
Authority
AR
Argentina
Prior art keywords
chlorine
considerably reduced
several stages
reduced use
bleaching procedure
Prior art date
Application number
AR261846A
Other languages
English (en)
Spanish (es)
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 AR221678A1 publication Critical patent/AR221678A1/es

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)
AR261846A 1975-08-30 1976-01-05 Procedimiento de blanqueo de celulosa en varias etapas con utilizacion considerablemente reducida de cloro AR221678A1 (es)

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
AR221678A1 true AR221678A1 (es) 1981-03-13

Family

ID=5955230

Family Applications (1)

Application Number Title Priority Date Filing Date
AR261846A AR221678A1 (es) 1975-08-30 1976-01-05 Procedimiento de blanqueo de celulosa en varias etapas con utilizacion considerablemente reducida de cloro

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
IT1055792B (it) 1982-01-11

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