AT325412B - Verfahren zur herstellung von zellstoff unter verwendung von sauerstoff - Google Patents
Verfahren zur herstellung von zellstoff unter verwendung von sauerstoffInfo
- Publication number
- AT325412B AT325412B AT18873A AT18873A AT325412B AT 325412 B AT325412 B AT 325412B AT 18873 A AT18873 A AT 18873A AT 18873 A AT18873 A AT 18873A AT 325412 B AT325412 B AT 325412B
- Authority
- AT
- Austria
- Prior art keywords
- oxygen
- manufacturing pulp
- pulp
- manufacturing
- 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
- D21C3/00—Pulping cellulose-containing materials
- D21C3/22—Other features of pulping processes
- D21C3/26—Multistage processes
- D21C3/263—Multistage processes at least one stage being in presence of oxygen
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP47006728A JPS5130601B2 (sv) | 1972-01-17 | 1972-01-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT325412B true AT325412B (de) | 1975-10-27 |
Family
ID=11646292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT18873A AT325412B (de) | 1972-01-17 | 1973-01-10 | Verfahren zur herstellung von zellstoff unter verwendung von sauerstoff |
Country Status (16)
| Country | Link |
|---|---|
| JP (1) | JPS5130601B2 (sv) |
| AR (1) | AR194979A1 (sv) |
| AT (1) | AT325412B (sv) |
| AU (1) | AU471897B2 (sv) |
| BR (1) | BR7300356D0 (sv) |
| CA (1) | CA981855A (sv) |
| DD (1) | DD102183A5 (sv) |
| FI (1) | FI54943C (sv) |
| FR (1) | FR2175401A5 (sv) |
| GB (1) | GB1392770A (sv) |
| IT (1) | IT978170B (sv) |
| NO (1) | NO135260C (sv) |
| PL (1) | PL85082B1 (sv) |
| SE (1) | SE394299B (sv) |
| YU (1) | YU6273A (sv) |
| ZA (1) | ZA7354B (sv) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5249302A (en) * | 1975-10-16 | 1977-04-20 | Hitachi Shipbuilding Eng Co | Process for alkali pulping |
| IT1209352B (it) * | 1980-09-22 | 1989-07-16 | Nardi Franco | Processo per la produzione di cellulose chimiche e/o paste per carte, nonche'impianto e relativi componenti per l'attuazione del processo indicato |
| US7771565B2 (en) | 2006-02-21 | 2010-08-10 | Packaging Corporation Of America | Method of pre-treating woodchips prior to mechanical pulping |
| WO2011156708A1 (en) | 2010-06-10 | 2011-12-15 | Packaging Corporation Of America | Method of manufacturing pulp for corrugated medium |
-
1972
- 1972-01-17 JP JP47006728A patent/JPS5130601B2/ja not_active Expired
- 1972-12-29 AR AR245948A patent/AR194979A1/es active
- 1972-12-30 PL PL1972160120A patent/PL85082B1/pl unknown
-
1973
- 1973-01-01 GB GB7273A patent/GB1392770A/en not_active Expired
- 1973-01-02 AU AU50645/73A patent/AU471897B2/en not_active Expired
- 1973-01-03 ZA ZA730054A patent/ZA7354B/xx unknown
- 1973-01-10 AT AT18873A patent/AT325412B/de not_active IP Right Cessation
- 1973-01-11 YU YU00062/73A patent/YU6273A/xx unknown
- 1973-01-11 FI FI81/73A patent/FI54943C/fi active
- 1973-01-15 IT IT19226/73A patent/IT978170B/it active
- 1973-01-16 NO NO194/73A patent/NO135260C/no unknown
- 1973-01-16 SE SE7300555A patent/SE394299B/sv unknown
- 1973-01-16 BR BR73356A patent/BR7300356D0/pt unknown
- 1973-01-16 DD DD169155A patent/DD102183A5/xx unknown
- 1973-01-17 CA CA161,447A patent/CA981855A/en not_active Expired
- 1973-01-17 FR FR7301531A patent/FR2175401A5/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| SE394299B (sv) | 1977-06-20 |
| DE2302232B2 (de) | 1977-02-17 |
| FI54943C (fi) | 1979-04-10 |
| DE2302232A1 (de) | 1973-08-16 |
| NO135260B (sv) | 1976-11-29 |
| YU6273A (en) | 1981-11-13 |
| BR7300356D0 (pt) | 1973-09-13 |
| IT978170B (it) | 1974-09-20 |
| JPS5130601B2 (sv) | 1976-09-02 |
| AU471897B2 (en) | 1974-07-04 |
| AU5064573A (en) | 1974-07-04 |
| FR2175401A5 (sv) | 1973-10-19 |
| NO135260C (sv) | 1977-03-09 |
| FI54943B (fi) | 1978-12-29 |
| AR194979A1 (es) | 1973-08-30 |
| DD102183A5 (sv) | 1973-12-05 |
| CA981855A (en) | 1976-01-20 |
| PL85082B1 (sv) | 1976-04-30 |
| JPS4875801A (sv) | 1973-10-12 |
| GB1392770A (en) | 1975-04-30 |
| ZA7354B (en) | 1973-09-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ELJ | Ceased due to non-payment of the annual fee |