IT946779B - PROCEDURE FOR REDUCING THE COLOR OF THE EFFLUENT FROM A MULTI-STAGE WHITENING PROCE - Google Patents
PROCEDURE FOR REDUCING THE COLOR OF THE EFFLUENT FROM A MULTI-STAGE WHITENING PROCEInfo
- 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
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)
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 (en) | 1973-05-21 |
Family
ID=22325250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT19638/72A IT946779B (en) | 1971-01-22 | 1972-01-21 | PROCEDURE FOR REDUCING THE COLOR OF THE EFFLUENT FROM A MULTI-STAGE WHITENING PROCE |
Country Status (12)
| Country | Link |
|---|---|
| JP (1) | JPS5020601B1 (en) |
| AU (1) | AU458729B2 (en) |
| BR (1) | BR7200385D0 (en) |
| CA (1) | CA975111A (en) |
| DE (1) | DE2202662A1 (en) |
| ES (1) | ES399036A1 (en) |
| FR (1) | FR2122963A5 (en) |
| IT (1) | IT946779B (en) |
| NL (1) | NL7200822A (en) |
| SE (1) | SE390991B (en) |
| SU (1) | SU605555A3 (en) |
| ZA (1) | ZA718559B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI884507A (en) * | 1987-10-05 | 1989-04-06 | Champion Int Corp | FOERMINSKNING AV FAERG I PAPPERSFABRIKSAVFALLSVATTEN GENOM OXIDERING MED KLORDIOXID. |
-
1971
- 1971-12-17 CA CA130,453A patent/CA975111A/en not_active Expired
- 1971-12-22 ZA ZA718559A patent/ZA718559B/en unknown
- 1971-12-23 AU AU37265/71A patent/AU458729B2/en not_active Expired
-
1972
- 1972-01-12 SU SU721737114A patent/SU605555A3/en active
- 1972-01-19 FR FR7201731A patent/FR2122963A5/en not_active Expired
- 1972-01-19 ES ES399036A patent/ES399036A1/en not_active Expired
- 1972-01-20 DE DE19722202662 patent/DE2202662A1/en active Pending
- 1972-01-20 NL NL7200822A patent/NL7200822A/xx unknown
- 1972-01-21 SE SE7200707A patent/SE390991B/en unknown
- 1972-01-21 JP JP47008244A patent/JPS5020601B1/ja active Pending
- 1972-01-21 IT IT19638/72A patent/IT946779B/en active
- 1972-01-24 BR BR385/72A patent/BR7200385D0/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CA975111A (en) | 1975-09-30 |
| BR7200385D0 (en) | 1973-07-17 |
| JPS5020601B1 (en) | 1975-07-16 |
| SE390991B (en) | 1977-01-31 |
| FR2122963A5 (en) | 1972-09-01 |
| AU3726571A (en) | 1973-06-28 |
| ES399036A1 (en) | 1975-06-01 |
| AU458729B2 (en) | 1975-03-06 |
| ZA718559B (en) | 1972-09-27 |
| SU605555A3 (en) | 1978-04-30 |
| NL7200822A (en) | 1972-07-25 |
| DE2202662A1 (en) | 1972-08-03 |
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