SE8102098L - PROCEDURE AND DEVICE FOR TREATING A CELLULOSIC MATERIAL - Google Patents
PROCEDURE AND DEVICE FOR TREATING A CELLULOSIC MATERIALInfo
- Publication number
- SE8102098L SE8102098L SE8102098A SE8102098A SE8102098L SE 8102098 L SE8102098 L SE 8102098L SE 8102098 A SE8102098 A SE 8102098A SE 8102098 A SE8102098 A SE 8102098A SE 8102098 L SE8102098 L SE 8102098L
- Authority
- SE
- Sweden
- Prior art keywords
- working
- cellulose
- working chamber
- aforesaid
- housing
- Prior art date
Links
- 239000000463 material Substances 0.000 title abstract 7
- 238000000034 method Methods 0.000 title abstract 4
- 229920002678 cellulose Polymers 0.000 abstract 2
- 239000001913 cellulose Substances 0.000 abstract 2
- 239000003153 chemical reaction reagent Substances 0.000 abstract 2
- 238000005096 rolling process Methods 0.000 abstract 2
- YXZBWJWYWHRIMU-UBPCSPHJSA-I calcium trisodium 2-[bis[2-[bis(carboxylatomethyl)amino]ethyl]amino]acetate ytterbium-169 Chemical compound [Na+].[Na+].[Na+].[Ca+2].[169Yb].[O-]C(=O)CN(CC([O-])=O)CCN(CC(=O)[O-])CCN(CC([O-])=O)CC([O-])=O YXZBWJWYWHRIMU-UBPCSPHJSA-I 0.000 abstract 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/02—Pretreatment of the raw materials by chemical or physical means
-
- 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
- D21C1/00—Pretreatment of the finely-divided materials before digesting
- D21C1/10—Physical methods for facilitating impregnation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
METHOD AND APPARATUS FOR THE TREATMENT OF A CELLULOSE-CONTAINING MATERIAL A b s t r a c t Disclosed is a method for the treatment of a cellulose -containing material basically comprising the steps of continuously charging the material together with the solution of reagents into a working chamber and repeatedly machanically compacting the same by means of the cooperation between an inner and an outer working bodies, the outer working body enclosing the inner working body and defining in combination therewith the aforesaid working chamber. The step of repeatedly mechanically compacting the material is effected by imparting to one of the working bodies wobbling and rolling over the other working body through a layer of the material treated, the aforesaid wobbling and rolling being produced by the rotation of a mass unbalanced with respect to the axis of rotation and coupled ratably to one of the working bodies. Also disclosed is an apparatus for practising the above method, which comprises a housing, a rotor made in the form of a body of rotation arranged inside the housing and defining in combination therewith a working chamber, a means for charging the cellulose-containing material together with the solution of reagents into the aforesaid working chamber, a drive shaft and its driving gear. Mounted on the drive shaft are unbalanced masses, 9 while the shaft itself is rotatably coupled to the rotor or to the housing, a portion of the surface of the rotor being designed for repeatedly mechanically compacting the material treated. Fig. 1.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU2908425 | 1980-04-08 | ||
| SU802911021A SU937577A1 (en) | 1980-04-19 | 1980-04-19 | Apparatus for mechanical working of wood |
| SU802963339A SU937578A1 (en) | 1980-07-23 | 1980-07-23 | Apparatus for mechanical working of fibrous material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE8102098L true SE8102098L (en) | 1981-10-09 |
| SE444189B SE444189B (en) | 1986-03-24 |
Family
ID=27356371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE8102098A SE444189B (en) | 1980-04-08 | 1981-04-01 | PROCEDURE AND DEVICE FOR TREATING A CELLULOSIC MATERIAL |
Country Status (4)
| Country | Link |
|---|---|
| AT (1) | AT381735B (en) |
| CA (1) | CA1158905A (en) |
| FI (1) | FI70937C (en) |
| SE (1) | SE444189B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007022753A1 (en) * | 2007-05-11 | 2008-11-13 | Voith Patent Gmbh | Defibration of chemically treated lignocellulosic raw material, useful in cardboards and papers, comprises removing the lignocellulosic raw material from the fiber with a high milling degree by providing a specific milling energy |
-
1981
- 1981-04-01 SE SE8102098A patent/SE444189B/en not_active IP Right Cessation
- 1981-04-02 AT AT0153581A patent/AT381735B/en not_active IP Right Cessation
- 1981-04-07 CA CA000374857A patent/CA1158905A/en not_active Expired
- 1981-04-08 FI FI811086A patent/FI70937C/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| FI70937B (en) | 1986-07-18 |
| AT381735B (en) | 1986-11-25 |
| FI811086L (en) | 1981-10-09 |
| FI70937C (en) | 1986-10-27 |
| ATA153581A (en) | 1986-04-15 |
| SE444189B (en) | 1986-03-24 |
| CA1158905A (en) | 1983-12-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NUG | Patent has lapsed |
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