FI67412C - Foerfarande foer behandling av cellulosahaltig massa - Google Patents
Foerfarande foer behandling av cellulosahaltig massa Download PDFInfo
- Publication number
- FI67412C FI67412C FI781285A FI781285A FI67412C FI 67412 C FI67412 C FI 67412C FI 781285 A FI781285 A FI 781285A FI 781285 A FI781285 A FI 781285A FI 67412 C FI67412 C FI 67412C
- Authority
- FI
- Finland
- Prior art keywords
- pulp
- ozone
- fractions
- treated
- coarse
- 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
- D21C9/1073—Bleaching ; Apparatus therefor with O3
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/14—Disintegrating in mills
- D21B1/16—Disintegrating in mills in the presence of chemical agents
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO771471A NO139895C (no) | 1977-04-27 | 1977-04-27 | Fremgangsmaate for behandling av celluloseholdig masse ved anvendelse av ozon |
NO771472 | 1977-04-27 | ||
NO771471 | 1977-04-27 | ||
NO771472A NO139896C (no) | 1977-04-27 | 1977-04-27 | Fremgangsmaate for behandling av celluloseholdig masse ved anvendelse av ozon |
Publications (3)
Publication Number | Publication Date |
---|---|
FI781285A FI781285A (fi) | 1978-10-28 |
FI67412B FI67412B (fi) | 1984-11-30 |
FI67412C true FI67412C (fi) | 1985-03-11 |
Family
ID=26647635
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI781285A FI67412C (fi) | 1977-04-27 | 1978-04-25 | Foerfarande foer behandling av cellulosahaltig massa |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPS53143706A (ja) |
BR (1) | BR7802596A (ja) |
CA (1) | CA1083870A (ja) |
DE (1) | DE2818660A1 (ja) |
FI (1) | FI67412C (ja) |
FR (1) | FR2388934A1 (ja) |
SE (1) | SE439507B (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO142091C (no) * | 1977-10-17 | 1980-06-25 | Myrens Verksted As | Fremgangsmaate ved ozonbehandling av raffinoermekanisk og termomekanisk masse. |
DE2908660C2 (de) * | 1979-03-06 | 1984-02-09 | J.M. Voith Gmbh, 7920 Heidenheim | Verfahren und Anlage zur Rückgewinnung einer Faserstoffsuspension aus gemischtem Altpapier |
US4435249A (en) | 1979-09-05 | 1984-03-06 | The Black Clawson Co. | Process for the oxygen delignification of pulp mill rejects |
FR2522030A1 (fr) * | 1982-02-19 | 1983-08-26 | Scherb Metenett Papeteries | Procede de blanchiment selectif de pate a papier et papier obtenu par mise en oeuvre de ce procede |
JPS6430088A (en) * | 1987-07-24 | 1989-01-31 | Konishiroku Photo Ind | Tape cassette |
EP0581631A1 (en) * | 1992-07-31 | 1994-02-02 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Selective treatment of pulp with ozone |
DE10256519B4 (de) * | 2002-12-04 | 2006-08-10 | Voith Paper Patent Gmbh | Verfahren zur Dispergierung eines aus bedrucktem Papier gewonnenen Papierfaserstoffes |
FI119062B (fi) * | 2006-12-28 | 2008-07-15 | Upm Kymmene Corp | Menetelmä mekaanisen massan valmistamiseksi |
DE102008010447A1 (de) * | 2008-02-21 | 2009-08-27 | Voith Patent Gmbh | Verfahren zur Behandlung und Verwendung einer Faserstoffsuspension |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1119106B (de) * | 1959-03-25 | 1961-12-07 | Phrix Werke Ag | Verfahren zum Herstellen eines Kunstfaserzellstoffes aus Holz u. dgl. |
NO131996C (ja) * | 1973-10-04 | 1975-09-03 | Papirind Forskningsinst |
-
1978
- 1978-04-25 FI FI781285A patent/FI67412C/fi not_active IP Right Cessation
- 1978-04-26 SE SE7804786A patent/SE439507B/sv not_active IP Right Cessation
- 1978-04-26 BR BR7802596A patent/BR7802596A/pt unknown
- 1978-04-26 CA CA302,000A patent/CA1083870A/en not_active Expired
- 1978-04-27 JP JP5068478A patent/JPS53143706A/ja active Granted
- 1978-04-27 FR FR7812540A patent/FR2388934A1/fr active Pending
- 1978-04-27 DE DE19782818660 patent/DE2818660A1/de active Granted
Also Published As
Publication number | Publication date |
---|---|
DE2818660A1 (de) | 1978-11-02 |
FI781285A (fi) | 1978-10-28 |
SE439507B (sv) | 1985-06-17 |
FI67412B (fi) | 1984-11-30 |
JPS62275B2 (ja) | 1987-01-07 |
BR7802596A (pt) | 1978-12-12 |
JPS53143706A (en) | 1978-12-14 |
FR2388934A1 (fr) | 1978-11-24 |
SE7804786L (sv) | 1978-10-28 |
CA1083870A (en) | 1980-08-19 |
DE2818660C2 (ja) | 1988-09-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM | Patent lapsed |
Owner name: MYRENS VERKSTED A/S |