FR2454478A1 - Procede ameliore de blanchiment de matieres fibreuses cellulosiques - Google Patents
Procede ameliore de blanchiment de matieres fibreuses cellulosiquesInfo
- Publication number
- FR2454478A1 FR2454478A1 FR8008451A FR8008451A FR2454478A1 FR 2454478 A1 FR2454478 A1 FR 2454478A1 FR 8008451 A FR8008451 A FR 8008451A FR 8008451 A FR8008451 A FR 8008451A FR 2454478 A1 FR2454478 A1 FR 2454478A1
- Authority
- FR
- France
- Prior art keywords
- chlorine
- stage
- clo2
- oxide
- state
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
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
- D21C9/142—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 in a multistage process involving ClO2/Cl2 exclusively
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
- D06L4/20—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen
- D06L4/22—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen using inorganic agents
- D06L4/24—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen using inorganic agents using chlorites or chlorine dioxide
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Textile Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Abstract
L'INVENTION CONCERNE UN PROCEDE AMELIORE DE BLANCHIMENT DE MATIERES FIBREUSES CELLULOSIQUES. L'APPLICATION EN SERIE DE BIOXYDE DE CHLORE ET DE CHLORE, SANS LAVAGE INTERMEDIAIRE, AU COURS DU BLANCHIMENT DE LA PATE DE BOIS EN L'ABSENCE DE QUANTITES IMPORTANTES DE MATIERES ORGANIQUES DISSOUTES, EST AMELIOREE PAR LA PRESENCE DE CHLORE DISSOUS DANS LA SOLUTION DE BIOXYDE DE CHLORE DANS UNE PROPORTION DE 6 A 10 DU CHLORE TOTAL DISPONIBLE DE LADITE SOLUTION. APPLICATION: BLANCHIMENT DE LA PATE DE BOIS.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US3055779A | 1979-04-16 | 1979-04-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2454478A1 true FR2454478A1 (fr) | 1980-11-14 |
FR2454478B1 FR2454478B1 (fr) | 1983-09-23 |
Family
ID=21854784
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8008451A Granted FR2454478A1 (fr) | 1979-04-16 | 1980-04-15 | Procede ameliore de blanchiment de matieres fibreuses cellulosiques |
Country Status (9)
Country | Link |
---|---|
JP (1) | JPS55142787A (fr) |
AR (1) | AR219443A1 (fr) |
BR (1) | BR8002327A (fr) |
CA (1) | CA1120660A (fr) |
CS (1) | CS228128B2 (fr) |
FI (1) | FI71964B (fr) |
FR (1) | FR2454478A1 (fr) |
PL (1) | PL123711B1 (fr) |
SE (1) | SE445367B (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5192362B2 (ja) * | 2008-12-16 | 2013-05-08 | 株式会社前川製作所 | パルプ漂白水の製造方法及び装置 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1489262A (fr) * | 1966-06-28 | 1967-07-21 | Canadian Ind | Blanchiment de la pâte de bois |
FR94026E (fr) * | 1965-06-28 | 1969-06-20 | Hooker Chemical Corp | Procédé de blanchiment des matieres cellulosiques. |
US3501374A (en) * | 1968-12-26 | 1970-03-17 | Hooker Chemical Corp | Sequential bleaching of kraft pulp with chlorine dioxide and chlorine |
CA926056A (en) * | 1966-01-10 | 1973-05-15 | C. Logan Kenneth | Process of bleaching woodpulp |
FR2421242A1 (fr) * | 1978-03-30 | 1979-10-26 | Erco Ind Ltd | Procede perfectionne de blanchiment de matiere fibreuse cellulosique telle que pate de bois |
-
1980
- 1980-03-06 CA CA000347139A patent/CA1120660A/fr not_active Expired
- 1980-03-17 AR AR280331A patent/AR219443A1/es active
- 1980-04-08 FI FI801103A patent/FI71964B/fi not_active Application Discontinuation
- 1980-04-10 SE SE8002723A patent/SE445367B/sv not_active IP Right Cessation
- 1980-04-14 JP JP4818480A patent/JPS55142787A/ja active Pending
- 1980-04-15 BR BR8002327A patent/BR8002327A/pt not_active IP Right Cessation
- 1980-04-15 CS CS802613A patent/CS228128B2/cs unknown
- 1980-04-15 FR FR8008451A patent/FR2454478A1/fr active Granted
- 1980-04-15 PL PL1980223468A patent/PL123711B1/pl unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR94026E (fr) * | 1965-06-28 | 1969-06-20 | Hooker Chemical Corp | Procédé de blanchiment des matieres cellulosiques. |
CA926056A (en) * | 1966-01-10 | 1973-05-15 | C. Logan Kenneth | Process of bleaching woodpulp |
FR1489262A (fr) * | 1966-06-28 | 1967-07-21 | Canadian Ind | Blanchiment de la pâte de bois |
US3501374A (en) * | 1968-12-26 | 1970-03-17 | Hooker Chemical Corp | Sequential bleaching of kraft pulp with chlorine dioxide and chlorine |
FR2421242A1 (fr) * | 1978-03-30 | 1979-10-26 | Erco Ind Ltd | Procede perfectionne de blanchiment de matiere fibreuse cellulosique telle que pate de bois |
Non-Patent Citations (1)
Title |
---|
EXBK/76 * |
Also Published As
Publication number | Publication date |
---|---|
FI801103A (fi) | 1980-10-17 |
SE445367B (sv) | 1986-06-16 |
SE8002723L (sv) | 1980-10-17 |
PL223468A1 (fr) | 1981-03-27 |
CA1120660A (fr) | 1982-03-30 |
PL123711B1 (en) | 1982-11-30 |
BR8002327A (pt) | 1980-12-02 |
AR219443A1 (es) | 1980-08-15 |
FI71964B (fi) | 1986-11-28 |
JPS55142787A (en) | 1980-11-07 |
FR2454478B1 (fr) | 1983-09-23 |
CS228128B2 (en) | 1984-05-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |