CH237790A - Verfahren zur Herstellung von Zellstoffen von hohem Alpha- und niedrigen Pentosangehalt. - Google Patents
Verfahren zur Herstellung von Zellstoffen von hohem Alpha- und niedrigen Pentosangehalt.Info
- Publication number
- CH237790A CH237790A CH237790DA CH237790A CH 237790 A CH237790 A CH 237790A CH 237790D A CH237790D A CH 237790DA CH 237790 A CH237790 A CH 237790A
- Authority
- CH
- Switzerland
- Prior art keywords
- acid
- production
- cellulose
- pulps
- high alpha
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 17
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 230000029087 digestion Effects 0.000 claims description 13
- 239000002253 acid Substances 0.000 claims description 12
- 229920002678 cellulose Polymers 0.000 claims description 10
- 239000001913 cellulose Substances 0.000 claims description 10
- 239000002994 raw material Substances 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 150000007513 acids Chemical class 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 12
- 230000007062 hydrolysis Effects 0.000 description 5
- 238000006460 hydrolysis reaction Methods 0.000 description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 239000010902 straw Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 238000010411 cooking Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 235000005985 organic acids Nutrition 0.000 description 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 240000000731 Fagus sylvatica Species 0.000 description 1
- 235000010099 Fagus sylvatica Nutrition 0.000 description 1
- 206010016807 Fluid retention Diseases 0.000 description 1
- 241000294754 Macroptilium atropurpureum Species 0.000 description 1
- 244000273256 Phragmites communis Species 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 244000061456 Solanum tuberosum Species 0.000 description 1
- 235000002595 Solanum tuberosum Nutrition 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 238000012993 chemical processing Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 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
- Paper (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE237790X | 1943-02-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH237790A true CH237790A (de) | 1945-05-31 |
Family
ID=5903276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH237790D CH237790A (de) | 1943-02-27 | 1944-01-15 | Verfahren zur Herstellung von Zellstoffen von hohem Alpha- und niedrigen Pentosangehalt. |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE457089A (en)) |
| CH (1) | CH237790A (en)) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2518141A1 (fr) * | 1981-12-10 | 1983-06-17 | Battelle Memorial Institute | Procede pour delignifier le bois et autres produits lignocellulosiques |
-
0
- BE BE457089D patent/BE457089A/xx unknown
-
1944
- 1944-01-15 CH CH237790D patent/CH237790A/de unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2518141A1 (fr) * | 1981-12-10 | 1983-06-17 | Battelle Memorial Institute | Procede pour delignifier le bois et autres produits lignocellulosiques |
| EP0082116A1 (fr) * | 1981-12-10 | 1983-06-22 | Battelle Memorial Institute | Procédé pour délignifier le bois et autres produits lignocellulosiques |
| WO1983002125A1 (en) * | 1981-12-10 | 1983-06-23 | Memorial Institute Battelle | A method for the delignification of wood and other ligno-cellulosic products |
Also Published As
| Publication number | Publication date |
|---|---|
| BE457089A (en)) |
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