BE448957A - - Google Patents
Info
- Publication number
- BE448957A BE448957A BE448957DA BE448957A BE 448957 A BE448957 A BE 448957A BE 448957D A BE448957D A BE 448957DA BE 448957 A BE448957 A BE 448957A
- Authority
- BE
- Belgium
- Prior art keywords
- cellulose
- wood
- pine wood
- sulfuric acid
- acid
- Prior art date
Links
- 229920002678 cellulose Polymers 0.000 claims description 23
- 239000001913 cellulose Substances 0.000 claims description 20
- 239000002023 wood Substances 0.000 claims description 20
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 14
- 235000008331 Pinus X rigitaeda Nutrition 0.000 claims description 12
- 235000011613 Pinus brutia Nutrition 0.000 claims description 12
- 241000018646 Pinus brutia Species 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 229920002994 synthetic fiber Polymers 0.000 claims description 7
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 4
- 229910021653 sulphate ion Inorganic materials 0.000 claims description 4
- 230000003301 hydrolyzing effect Effects 0.000 claims 1
- 235000010980 cellulose Nutrition 0.000 description 22
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 10
- 239000002253 acid Substances 0.000 description 6
- 238000010411 cooking Methods 0.000 description 5
- 229920000297 Rayon Polymers 0.000 description 4
- 238000010494 dissociation reaction Methods 0.000 description 4
- 230000005593 dissociations Effects 0.000 description 4
- 239000003513 alkali Substances 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 240000000731 Fagus sylvatica Species 0.000 description 1
- 235000010099 Fagus sylvatica Nutrition 0.000 description 1
- 239000007832 Na2SO4 Substances 0.000 description 1
- 241000555745 Sciuridae Species 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 229910052979 sodium sulfide Inorganic materials 0.000 description 1
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 230000002087 whitening effect Effects 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
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
- D21C1/04—Pretreatment of the finely-divided materials before digesting with acid reacting compounds
Landscapes
- Polysaccharides And Polysaccharide Derivatives (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE233586X | 1942-01-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE448957A true BE448957A (d) |
Family
ID=5886890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE448957D BE448957A (d) | 1942-01-09 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE448957A (d) |
| NL (1) | NL59794C (d) |
-
0
- BE BE448957D patent/BE448957A/fr unknown
- NL NL59794D patent/NL59794C/xx active
Also Published As
| Publication number | Publication date |
|---|---|
| NL59794C (d) |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1206704A (fr) | Procede pour le traitement de pates papetieres chimiques | |
| BE448957A (d) | ||
| FR2570706A1 (fr) | Procede cyclique pour preparer une solution d'alcali de carbamate de cellulose, pour precipiter le carbamate et pour recuperer les produits chimiques | |
| FR2495654A1 (fr) | Procede pour la fabrication de pates speciales a teneur elevee en a-cellulose, a stades de cuisson multiples, comprenant une prehydrolyse acide | |
| GB2186002A (en) | Treatment of flax | |
| FR2615874A1 (fr) | Procede de preparation de pates chimicothermomecaniques | |
| CN87101264A (zh) | 高效去除木质素的大麻化学脱胶方法 | |
| BE411850A (d) | ||
| BE537851A (d) | ||
| CH529863A (fr) | Dispositif pour la récupération et l'évacuation de la fausse lisière dans un métier à tisser sans navette | |
| BE505247A (d) | ||
| BE428871A (fr) | Perfectionnements au traitement des matières textiles | |
| US1001284A (en) | Process for obtaining textile fibers. | |
| BE484649A (d) | ||
| BE432833A (d) | ||
| BE429467A (d) | ||
| BE452574A (d) | ||
| BE441500A (d) | ||
| BE452027A (d) | ||
| BE454017A (d) | ||
| BE355629A (d) | ||
| BE472981A (d) | ||
| BE435029A (d) | ||
| BE446019A (d) | ||
| BE456678A (d) |