JPS50112501A - - Google Patents
Info
- Publication number
- JPS50112501A JPS50112501A JP49019287A JP1928774A JPS50112501A JP S50112501 A JPS50112501 A JP S50112501A JP 49019287 A JP49019287 A JP 49019287A JP 1928774 A JP1928774 A JP 1928774A JP S50112501 A JPS50112501 A JP S50112501A
- Authority
- JP
- Japan
- 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
- D21C9/1068—Bleaching ; Apparatus therefor with O2
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Priority Applications (12)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP49019287A JPS5241361B2 (en) | 1974-02-18 | 1974-02-18 | |
| NO743539A NO743539L (en) | 1974-02-18 | 1974-09-30 | |
| SE7412272A SE411464B (en) | 1974-02-18 | 1974-09-30 | WAY TO DELIGNIFY CELLULOSIS-MATERIAL WITH ACID |
| CA210,399A CA1036758A (en) | 1974-02-18 | 1974-09-30 | Method of delignification of cellulosic material in alkaline medium using oxygen |
| AU73835/74A AU484000B2 (en) | 1974-02-18 | 1974-10-01 | Method of delignification of cellulosic material in alkaline medium using oxygen |
| BR8260/74A BR7408260A (en) | 1974-02-18 | 1974-10-04 | PERFECT PROCESS OF DESIGNIFICATION OF CELLULOSIC MATERIAL |
| GB43506/74A GB1489222A (en) | 1974-02-18 | 1974-10-08 | Method of delignification of cellulosic material in alkaline medium using oxygen |
| IT28290/74A IT1022768B (en) | 1974-02-18 | 1974-10-10 | METHOD FOR THE DELIGNIFICATION OF CELLULOSE MATERIAL IN THE MIDDLE OF THE CALINO USING OXYNUM |
| FI3013/74A FI56710C (en) | 1974-02-18 | 1974-10-15 | REFERENCE TO A CELLULOSE MATERIAL IN THE MATERIALS OF AN ALKALIS OMGIVNING UNDER ANVAENDNING AV SYRE |
| FR7435643A FR2261371B1 (en) | 1974-02-18 | 1974-10-24 | |
| DE19742450608 DE2450608C3 (en) | 1974-02-18 | 1974-10-24 | Process for the delignification of cellulosic material in an alkaline medium using oxygen |
| US05/718,935 US4089737A (en) | 1974-02-18 | 1976-08-30 | Delignification of cellulosic material with an alkaline aqueous medium containing oxygen dissolved therein |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP49019287A JPS5241361B2 (en) | 1974-02-18 | 1974-02-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS50112501A true JPS50112501A (en) | 1975-09-04 |
| JPS5241361B2 JPS5241361B2 (en) | 1977-10-18 |
Family
ID=11995220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP49019287A Expired JPS5241361B2 (en) | 1974-02-18 | 1974-02-18 |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS5241361B2 (en) |
| BR (1) | BR7408260A (en) |
| CA (1) | CA1036758A (en) |
| FI (1) | FI56710C (en) |
| FR (1) | FR2261371B1 (en) |
| GB (1) | GB1489222A (en) |
| IT (1) | IT1022768B (en) |
| NO (1) | NO743539L (en) |
| SE (1) | SE411464B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52148201A (en) * | 1976-06-01 | 1977-12-09 | Toyo Pulp Co Ltd | Process for making alkali pulp and lignin separation |
-
1974
- 1974-02-18 JP JP49019287A patent/JPS5241361B2/ja not_active Expired
- 1974-09-30 NO NO743539A patent/NO743539L/no unknown
- 1974-09-30 SE SE7412272A patent/SE411464B/en unknown
- 1974-09-30 CA CA210,399A patent/CA1036758A/en not_active Expired
- 1974-10-04 BR BR8260/74A patent/BR7408260A/en unknown
- 1974-10-08 GB GB43506/74A patent/GB1489222A/en not_active Expired
- 1974-10-10 IT IT28290/74A patent/IT1022768B/en active
- 1974-10-15 FI FI3013/74A patent/FI56710C/en active
- 1974-10-24 FR FR7435643A patent/FR2261371B1/fr not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52148201A (en) * | 1976-06-01 | 1977-12-09 | Toyo Pulp Co Ltd | Process for making alkali pulp and lignin separation |
| FR2353673A1 (en) * | 1976-06-01 | 1977-12-30 | Toyo Pulp Co Ltd | Alkaline cooking, washing and delignification of cellulose shavings - for paper pulp in vertical three zone reactor (SW 27.12.77) |
| JPS5325045B2 (en) * | 1976-06-01 | 1978-07-25 |
Also Published As
| Publication number | Publication date |
|---|---|
| FI56710B (en) | 1979-11-30 |
| FI301374A (en) | 1975-08-19 |
| JPS5241361B2 (en) | 1977-10-18 |
| CA1036758A (en) | 1978-08-22 |
| GB1489222A (en) | 1977-10-19 |
| DE2450608B2 (en) | 1976-04-15 |
| SE411464B (en) | 1979-12-27 |
| AU7383574A (en) | 1976-04-08 |
| SE7412272L (en) | 1975-08-19 |
| FI56710C (en) | 1981-07-27 |
| DE2450608A1 (en) | 1975-08-21 |
| NO743539L (en) | 1975-08-19 |
| BR7408260A (en) | 1976-04-27 |
| FR2261371B1 (en) | 1977-10-28 |
| FR2261371A1 (en) | 1975-09-12 |
| IT1022768B (en) | 1978-04-20 |