FR2333892A1 - Procede chimique d'extraction de la cellulose des pailles de cereales, roseaux, alfa, bois tendre et resineux par solution sodique agrementee d'un catalyseur negatif soit un corps reducteur reagissant sur l'hydrate de sodium. adjonction d'un complement de purification de la cellulose obtenue par une solution acide - Google Patents
Procede chimique d'extraction de la cellulose des pailles de cereales, roseaux, alfa, bois tendre et resineux par solution sodique agrementee d'un catalyseur negatif soit un corps reducteur reagissant sur l'hydrate de sodium. adjonction d'un complement de purification de la cellulose obtenue par une solution acideInfo
- Publication number
- FR2333892A1 FR2333892A1 FR7537532A FR7537532A FR2333892A1 FR 2333892 A1 FR2333892 A1 FR 2333892A1 FR 7537532 A FR7537532 A FR 7537532A FR 7537532 A FR7537532 A FR 7537532A FR 2333892 A1 FR2333892 A1 FR 2333892A1
- Authority
- FR
- France
- Prior art keywords
- delignification
- contg
- prods
- sodium hydroxide
- cellulose
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 title abstract 12
- 229920002678 cellulose Polymers 0.000 title abstract 2
- 239000001913 cellulose Substances 0.000 title abstract 2
- 235000013311 vegetables Nutrition 0.000 title abstract 2
- 239000001164 aluminium sulphate Substances 0.000 title 1
- 235000011128 aluminium sulphate Nutrition 0.000 title 1
- BUACSMWVFUNQET-UHFFFAOYSA-H dialuminum;trisulfate;hydrate Chemical compound O.[Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O BUACSMWVFUNQET-UHFFFAOYSA-H 0.000 title 1
- 238000000605 extraction Methods 0.000 title 1
- 229940037003 alum Drugs 0.000 abstract 2
- 239000003054 catalyst Substances 0.000 abstract 2
- 239000003638 chemical reducing agent Substances 0.000 abstract 2
- -1 H2SO4 or HNO3 Chemical class 0.000 abstract 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 1
- LVGQIQHJMRUCRM-UHFFFAOYSA-L calcium bisulfite Chemical compound [Ca+2].OS([O-])=O.OS([O-])=O LVGQIQHJMRUCRM-UHFFFAOYSA-L 0.000 abstract 1
- 235000010260 calcium hydrogen sulphite Nutrition 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 150000007522 mineralic acids Chemical class 0.000 abstract 1
- 229910017604 nitric acid Inorganic materials 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
- 239000012260 resinous material Substances 0.000 abstract 1
- 238000007127 saponification reaction Methods 0.000 abstract 1
- 239000011122 softwood Substances 0.000 abstract 1
- 229910021653 sulphate ion Inorganic materials 0.000 abstract 1
- 235000011149 sulphuric acid Nutrition 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 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
- D21C3/00—Pulping cellulose-containing materials
- D21C3/22—Other features of pulping processes
- D21C3/222—Use of compounds accelerating the pulping processes
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Catalysts (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7537532A FR2333892A1 (fr) | 1975-12-04 | 1975-12-04 | Procede chimique d'extraction de la cellulose des pailles de cereales, roseaux, alfa, bois tendre et resineux par solution sodique agrementee d'un catalyseur negatif soit un corps reducteur reagissant sur l'hydrate de sodium. adjonction d'un complement de purification de la cellulose obtenue par une solution acide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7537532A FR2333892A1 (fr) | 1975-12-04 | 1975-12-04 | Procede chimique d'extraction de la cellulose des pailles de cereales, roseaux, alfa, bois tendre et resineux par solution sodique agrementee d'un catalyseur negatif soit un corps reducteur reagissant sur l'hydrate de sodium. adjonction d'un complement de purification de la cellulose obtenue par une solution acide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2333892A1 true FR2333892A1 (fr) | 1977-07-01 |
| FR2333892B1 FR2333892B1 (enExample) | 1978-06-30 |
Family
ID=9163459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7537532A Granted FR2333892A1 (fr) | 1975-12-04 | 1975-12-04 | Procede chimique d'extraction de la cellulose des pailles de cereales, roseaux, alfa, bois tendre et resineux par solution sodique agrementee d'un catalyseur negatif soit un corps reducteur reagissant sur l'hydrate de sodium. adjonction d'un complement de purification de la cellulose obtenue par une solution acide |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2333892A1 (enExample) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0012775A1 (en) * | 1978-12-20 | 1980-07-09 | Eric S. Prior | Process for pulping ligno-cellulosic material |
| US4218284A (en) * | 1977-07-25 | 1980-08-19 | Mo Och Domsjo Aktiebolag | Process for the inhibition of the formation of deposits in cellulose pulping and cellulose pulp treating processes |
| EP0022881A1 (en) * | 1979-07-19 | 1981-01-28 | Eric S. Prior | Accelerated pulping process |
| WO1984004937A1 (fr) * | 1983-06-06 | 1984-12-20 | Eric S Prior | Procede de pulpation chimique d'un materiau lignocellulosique |
-
1975
- 1975-12-04 FR FR7537532A patent/FR2333892A1/fr active Granted
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4218284A (en) * | 1977-07-25 | 1980-08-19 | Mo Och Domsjo Aktiebolag | Process for the inhibition of the formation of deposits in cellulose pulping and cellulose pulp treating processes |
| EP0012775A1 (en) * | 1978-12-20 | 1980-07-09 | Eric S. Prior | Process for pulping ligno-cellulosic material |
| EP0022881A1 (en) * | 1979-07-19 | 1981-01-28 | Eric S. Prior | Accelerated pulping process |
| WO1981000267A1 (fr) * | 1979-07-19 | 1981-02-05 | E Prior | Procede accelere de reduction en pate |
| WO1984004937A1 (fr) * | 1983-06-06 | 1984-12-20 | Eric S Prior | Procede de pulpation chimique d'un materiau lignocellulosique |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2333892B1 (enExample) | 1978-06-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |