CH257117A - Procédé de défibrage des copeaux de bois et de matières similaires. - Google Patents
Procédé de défibrage des copeaux de bois et de matières similaires.Info
- Publication number
- CH257117A CH257117A CH257117DA CH257117A CH 257117 A CH257117 A CH 257117A CH 257117D A CH257117D A CH 257117DA CH 257117 A CH257117 A CH 257117A
- Authority
- CH
- Switzerland
- Prior art keywords
- sub
- chips
- hot water
- water
- action
- Prior art date
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 14
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 12
- 239000003153 chemical reaction reagent Substances 0.000 claims description 11
- 239000000243 solution Substances 0.000 claims description 7
- 230000003301 hydrolyzing effect Effects 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 230000008961 swelling Effects 0.000 claims description 5
- 235000006408 oxalic acid Nutrition 0.000 claims description 4
- 150000004676 glycans Chemical class 0.000 claims description 3
- 229920001282 polysaccharide Polymers 0.000 claims description 3
- 239000005017 polysaccharide Substances 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 2
- 150000007513 acids Chemical class 0.000 claims description 2
- 230000007062 hydrolysis Effects 0.000 claims description 2
- 238000006460 hydrolysis reaction Methods 0.000 claims description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000011707 mineral Substances 0.000 claims description 2
- 150000007524 organic acids Chemical class 0.000 claims description 2
- 235000005985 organic acids Nutrition 0.000 claims description 2
- 239000000376 reactant Substances 0.000 claims 1
- 239000002023 wood Substances 0.000 description 12
- 239000000835 fiber Substances 0.000 description 10
- 229920002522 Wood fibre Polymers 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 239000004460 silage Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 239000002025 wood fiber Substances 0.000 description 2
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000135 prohibitive effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 239000010875 treated wood Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 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
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR257117X | 1946-02-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH257117A true CH257117A (de) | 1948-09-30 |
Family
ID=8884674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH257117D CH257117A (de) | 1946-02-01 | 1946-12-02 | Procédé de défibrage des copeaux de bois et de matières similaires. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH257117A (de) |
-
1946
- 1946-12-02 CH CH257117D patent/CH257117A/de unknown
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