IT946779B - Procedimento per la riduzione del colore dell effluente da un proce dimento di sbianca a piu stadi - Google Patents

Procedimento per la riduzione del colore dell effluente da un proce dimento di sbianca a piu stadi

Info

Publication number
IT946779B
IT946779B IT19638/72A IT1963872A IT946779B IT 946779 B IT946779 B IT 946779B IT 19638/72 A IT19638/72 A IT 19638/72A IT 1963872 A IT1963872 A IT 1963872A IT 946779 B IT946779 B IT 946779B
Authority
IT
Italy
Prior art keywords
proce
effluent
color
procedure
reducing
Prior art date
Application number
IT19638/72A
Other languages
English (en)
Original Assignee
Hooker Chemical Corp
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 Hooker Chemical Corp filed Critical Hooker Chemical Corp
Application granted granted Critical
Publication of IT946779B publication Critical patent/IT946779B/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
    • D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
    • D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
    • D21C9/144—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 and other bleaching agents in a multistage process

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
IT19638/72A 1971-01-22 1972-01-21 Procedimento per la riduzione del colore dell effluente da un proce dimento di sbianca a piu stadi IT946779B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10899571A 1971-01-22 1971-01-22

Publications (1)

Publication Number Publication Date
IT946779B true IT946779B (it) 1973-05-21

Family

ID=22325250

Family Applications (1)

Application Number Title Priority Date Filing Date
IT19638/72A IT946779B (it) 1971-01-22 1972-01-21 Procedimento per la riduzione del colore dell effluente da un proce dimento di sbianca a piu stadi

Country Status (12)

Country Link
JP (1) JPS5020601B1 (it)
AU (1) AU458729B2 (it)
BR (1) BR7200385D0 (it)
CA (1) CA975111A (it)
DE (1) DE2202662A1 (it)
ES (1) ES399036A1 (it)
FR (1) FR2122963A5 (it)
IT (1) IT946779B (it)
NL (1) NL7200822A (it)
SE (1) SE390991B (it)
SU (1) SU605555A3 (it)
ZA (1) ZA718559B (it)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI884507L (fi) * 1987-10-05 1989-04-06 Champion Int Corp Foerminskning av faerg i pappersfabriksavfallsvatten genom oxidering med klordioxid.

Also Published As

Publication number Publication date
DE2202662A1 (de) 1972-08-03
AU3726571A (en) 1973-06-28
AU458729B2 (en) 1975-03-06
SE390991B (sv) 1977-01-31
BR7200385D0 (pt) 1973-07-17
JPS5020601B1 (it) 1975-07-16
FR2122963A5 (en) 1972-09-01
NL7200822A (it) 1972-07-25
SU605555A3 (ru) 1978-04-30
ES399036A1 (es) 1975-06-01
ZA718559B (en) 1972-09-27
CA975111A (en) 1975-09-30

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