CH312976A - Verfahren zur Verhütung der Ausscheidung von Harz bei der Papiererzeugung - Google Patents
Verfahren zur Verhütung der Ausscheidung von Harz bei der PapiererzeugungInfo
- Publication number
- CH312976A CH312976A CH312976DA CH312976A CH 312976 A CH312976 A CH 312976A CH 312976D A CH312976D A CH 312976DA CH 312976 A CH312976 A CH 312976A
- Authority
- CH
- Switzerland
- Prior art keywords
- papermaking
- precipitation
- resin
- preventing
- 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
- D21C9/08—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
- 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
- D21C9/001—Modification of pulp properties
- D21C9/002—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives
- D21C9/004—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives inorganic compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE312976X | 1952-02-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH312976A true CH312976A (de) | 1956-03-15 |
Family
ID=6137921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH312976D CH312976A (de) | 1952-02-02 | 1953-02-02 | Verfahren zur Verhütung der Ausscheidung von Harz bei der Papiererzeugung |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE517333A (de) |
| CH (1) | CH312976A (de) |
| FR (1) | FR1070275A (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL202075A (de) * | 1954-11-19 | Fmc Corp | ||
| US4444621A (en) * | 1980-11-21 | 1984-04-24 | Mo Och Domsjo Aktiebolag | Process and apparatus for the deresination and brightness improvement of cellulose pulp |
| SE442414B (sv) * | 1981-09-22 | 1985-12-23 | Holmens Bruk Ab | Sett att minska eller inhibera morkfergningen av massa eller papper i bakvattensystem |
-
0
- BE BE517333D patent/BE517333A/xx unknown
-
1953
- 1953-02-02 FR FR1070275D patent/FR1070275A/fr not_active Expired
- 1953-02-02 CH CH312976D patent/CH312976A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE517333A (de) | |
| FR1070275A (fr) | 1954-07-21 |
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