FR1109828A - Process for delignification and bleaching of cellulosic fibers by the use of chlorine dioxide - Google Patents
Process for delignification and bleaching of cellulosic fibers by the use of chlorine dioxideInfo
- Publication number
- FR1109828A FR1109828A FR1109828DA FR1109828A FR 1109828 A FR1109828 A FR 1109828A FR 1109828D A FR1109828D A FR 1109828DA FR 1109828 A FR1109828 A FR 1109828A
- Authority
- FR
- France
- Prior art keywords
- delignification
- bleaching
- chlorine dioxide
- cellulosic fibers
- cellulosic
- 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.)
- Expired
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
-
- 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
- D21C3/00—Pulping cellulose-containing materials
- D21C3/18—Pulping cellulose-containing materials with halogens or halogen-generating compounds
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR812144X | 1954-07-24 | ||
FR332821X | 1954-07-24 | ||
FR70655X | 1955-06-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1109828A true FR1109828A (en) | 1956-02-02 |
Family
ID=32966120
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1109828D Expired FR1109828A (en) | 1954-07-24 | 1954-07-24 | Process for delignification and bleaching of cellulosic fibers by the use of chlorine dioxide |
FR69366D Expired FR69366E (en) | 1954-07-24 | 1955-06-07 | Process for delignification and bleaching of cellulose fibers using chlorine dioxide |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR69366D Expired FR69366E (en) | 1954-07-24 | 1955-06-07 | Process for delignification and bleaching of cellulose fibers using chlorine dioxide |
Country Status (3)
Country | Link |
---|---|
CH (1) | CH332821A (en) |
DE (1) | DE1080391B (en) |
FR (2) | FR1109828A (en) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE388343C (en) * | 1922-12-12 | 1924-01-11 | Adolf Kaempf Dr | Process for the production of pulp |
DE512927C (en) * | 1927-05-22 | 1930-11-14 | I G Farbenindustrie Akt Ges | Process for the digestion of vegetable fibers with chloric acid |
AT136521B (en) * | 1931-12-16 | 1934-02-10 | Waldhof Zellstoff Fab | Process for the production of cellulosic material. |
US2235837A (en) * | 1937-09-01 | 1941-03-25 | Mathieson Alkali Works Inc | Bleaching cellulose |
USRE23218E (en) * | 1945-02-21 | 1950-04-11 | Catalytic bleaching with chlorites | |
FI24781A (en) * | 1947-10-28 | 1951-01-10 | Solvay | An example of an oxidizing medium is chlorinated for fiber treatment |
-
1954
- 1954-07-24 FR FR1109828D patent/FR1109828A/en not_active Expired
-
1955
- 1955-06-07 FR FR69366D patent/FR69366E/en not_active Expired
- 1955-07-13 CH CH332821D patent/CH332821A/en unknown
- 1955-07-16 DE DES44781A patent/DE1080391B/en active Pending
Also Published As
Publication number | Publication date |
---|---|
FR69366E (en) | 1958-11-06 |
DE1080391B (en) | 1960-04-21 |
CH332821A (en) | 1958-09-30 |
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