NL116882C - - Google Patents
Info
- Publication number
- NL116882C NL116882C NL116882DA NL116882C NL 116882 C NL116882 C NL 116882C NL 116882D A NL116882D A NL 116882DA NL 116882 C NL116882 C NL 116882C
- Authority
- NL
- Netherlands
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
- D21C9/08—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
- D21C9/083—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 with inorganic 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
- D21C1/00—Pretreatment of the finely-divided materials before digesting
- D21C1/02—Pretreatment of the finely-divided materials before digesting with water or steam
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR986615T | 1943-11-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL116882C true NL116882C (US07922777-20110412-C00004.png) |
Family
ID=9538217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL116882D NL116882C (US07922777-20110412-C00004.png) | 1943-11-24 |
Country Status (2)
| Country | Link |
|---|---|
| FR (2) | FR986615A (US07922777-20110412-C00004.png) |
| NL (1) | NL116882C (US07922777-20110412-C00004.png) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2999783A (en) * | 1957-10-05 | 1961-09-12 | Hodogaya Chemical Co Ltd | Process for simultaneous production of high alpha-pulp with furfural from latifoliate tree materials |
-
0
- FR FR56443D patent/FR56443E/fr not_active Expired
- NL NL116882D patent/NL116882C/xx active
-
1943
- 1943-11-24 FR FR986615D patent/FR986615A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR56443E (US07922777-20110412-C00004.png) | 1952-10-07 |
| FR986615A (fr) | 1951-08-02 |
