JPS4961404A - - Google Patents
Info
- Publication number
- JPS4961404A JPS4961404A JP6909873A JP6909873A JPS4961404A JP S4961404 A JPS4961404 A JP S4961404A JP 6909873 A JP6909873 A JP 6909873A JP 6909873 A JP6909873 A JP 6909873A JP S4961404 A JPS4961404 A JP S4961404A
- 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.)
- Pending
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
- D21C1/00—Pretreatment of the finely-divided materials before digesting
- D21C1/06—Pretreatment of the finely-divided materials before digesting with alkaline reacting compounds
-
- 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
- D21C9/08—Removal of fats, resins, pitch or waxes; Chemical or physical purification, i.e. refining, of crude cellulose by removing non-cellulosic contaminants, optionally combined with bleaching
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7222139A FR2190121A1 (en) | 1972-06-20 | 1972-06-20 | Paper pulp mfre - from annual plants |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4961404A true JPS4961404A (sv) | 1974-06-14 |
Family
ID=9100454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6909873A Pending JPS4961404A (sv) | 1972-06-20 | 1973-06-19 |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS4961404A (sv) |
| AU (1) | AU5690873A (sv) |
| BE (1) | BE800236A (sv) |
| BR (1) | BR7304515D0 (sv) |
| DE (1) | DE2329199A1 (sv) |
| ES (1) | ES415898A1 (sv) |
| FR (1) | FR2190121A1 (sv) |
| IT (1) | IT989073B (sv) |
| NL (1) | NL7308492A (sv) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2745466C (en) * | 2008-12-08 | 2013-04-09 | Fpinnovations | Increasing alkaline pulping yield for softwood with metal ions |
-
1972
- 1972-06-20 FR FR7222139A patent/FR2190121A1/fr not_active Withdrawn
-
1973
- 1973-05-30 BE BE131680A patent/BE800236A/xx unknown
- 1973-06-07 DE DE19732329199 patent/DE2329199A1/de active Pending
- 1973-06-12 IT IT2523373A patent/IT989073B/it active
- 1973-06-14 ES ES415898A patent/ES415898A1/es not_active Expired
- 1973-06-14 AU AU56908/73A patent/AU5690873A/en not_active Expired
- 1973-06-18 BR BR451573A patent/BR7304515D0/pt unknown
- 1973-06-19 NL NL7308492A patent/NL7308492A/xx unknown
- 1973-06-19 JP JP6909873A patent/JPS4961404A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| BR7304515D0 (pt) | 1974-09-05 |
| FR2190121A1 (en) | 1974-01-25 |
| ES415898A1 (es) | 1976-02-01 |
| IT989073B (it) | 1975-05-20 |
| BE800236A (fr) | 1973-09-17 |
| AU5690873A (en) | 1974-12-19 |
| DE2329199A1 (de) | 1974-01-24 |
| NL7308492A (sv) | 1973-12-27 |