AT60447B - Process for utilizing cellulose waste. Artificial silk manufacture of all kinds by converting it into formyl cellulose. - Google Patents
Process for utilizing cellulose waste. Artificial silk manufacture of all kinds by converting it into formyl cellulose.Info
- Publication number
- AT60447B AT60447B AT60447DA AT60447B AT 60447 B AT60447 B AT 60447B AT 60447D A AT60447D A AT 60447DA AT 60447 B AT60447 B AT 60447B
- Authority
- AT
- Austria
- Prior art keywords
- cellulose
- silk
- converting
- kinds
- formyl
- Prior art date
Links
- 229920002678 cellulose Polymers 0.000 title claims description 13
- 239000001913 cellulose Substances 0.000 title claims description 12
- 238000000034 method Methods 0.000 title claims description 6
- 239000002699 waste material Substances 0.000 title claims description 4
- 238000004519 manufacturing process Methods 0.000 title claims description 3
- 229920002955 Art silk Polymers 0.000 title claims 2
- 125000002485 formyl group Chemical group [H]C(*)=O 0.000 title claims 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 5
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 2
- 235000019253 formic acid Nutrition 0.000 claims description 2
- 239000000020 Nitrocellulose Substances 0.000 claims 3
- 235000010980 cellulose Nutrition 0.000 claims 3
- 229920001220 nitrocellulos Polymers 0.000 claims 3
- 239000003513 alkali Substances 0.000 claims 1
- HIVLDXAAFGCOFU-UHFFFAOYSA-N ammonium hydrosulfide Chemical compound [NH4+].[SH-] HIVLDXAAFGCOFU-UHFFFAOYSA-N 0.000 claims 1
- 238000001035 drying Methods 0.000 claims 1
- 238000006396 nitration reaction Methods 0.000 claims 1
- 238000005406 washing Methods 0.000 claims 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 description 3
- BDAGIHXWWSANSR-UHFFFAOYSA-M Formate Chemical compound [O-]C=O BDAGIHXWWSANSR-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 229920000297 Rayon Polymers 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 230000036571 hydration Effects 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- JJLJMEJHUUYSSY-UHFFFAOYSA-L Copper hydroxide Chemical compound [OH-].[OH-].[Cu+2] JJLJMEJHUUYSSY-UHFFFAOYSA-L 0.000 description 1
- 239000005750 Copper hydroxide Substances 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000015895 biscuits Nutrition 0.000 description 1
- 229910001956 copper hydroxide Inorganic materials 0.000 description 1
- 229910000365 copper sulfate Inorganic materials 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- ZOOODBUHSVUZEM-UHFFFAOYSA-N ethoxymethanedithioic acid Chemical compound CCOC(S)=S ZOOODBUHSVUZEM-UHFFFAOYSA-N 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229910052572 stoneware Inorganic materials 0.000 description 1
- 239000012991 xanthate Substances 0.000 description 1
Landscapes
- Polysaccharides And Polysaccharide Derivatives (AREA)
Description
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und gibt dickflüssigere Lösungen, ohne Zweifel weil das Zellulosemolekül doch noch höher oder in anderer Weise hydratisiert ist, als die vielleicht gleichmässiger getrockneten Fäden. Aber brauchbar sind diese Lösungen ungeformter Zellulose sehr wohl und sie können bei Ausübung des Verfahrens nach dem Stammpatente einen wertvollen Ersatz von Kunstseidenfäden- und anderen geformten Abfällen bilden. Es handelt sich hier also um die Behandlung ungeformter Zellulose, anscheinend einer gewissen Hydratationsstufe an Stelle der im Stammpatente verwendeten Abfälle, einer Hydratationsstufe, die zur Bildung von Ameisensäureestem geeignet ist.
Beispiel 1.
100 kg Baumwolle werden mit der aus 250 kg Kupfersulfat und 1100'y konz. Ammoniak gewonnenen'feuchten Kupferhydroxydmasse unter Zusatz noch weiterer 100 k konz. Ammoniak im Mischapparat behandelt, bis die Baumwolle vollständig in Lösung gegangen ist. Diese Lösung wird in nicht zu dickem Strahle in ein aus verdünnter zirka 10%iger Schwefelsäure bestehendes Fällbad, zweckmässig unter Umrühren, eingegossen. wobei das ellulosehydrat ausfällt. Dasselbe wird von der Flüssigkeit durch Filtration getrennt, mit Wasser ausgewaschen und getrocknet. Das so gen onnene trockene Produkt wird nun in Gefässen aus geeignetem Material (Glas, Steinzeug usw.)
EMI2.1
behandelt, bis das Zellulosehydrat vollständig als Formiat in Lösung gegangen ist.
Die Lösung kann entweder direkt zur Herstellung von Films, plastischen Massen usw. verwandt werden. oder man kann das Zelluloseformiat durch geeignete Fällmittel (z. B. Wasser) aus derselben isolieren.
Beispiel 2.
100 kg Zellstoff werden in der üblichen Weise mit 700 kg Natronlauge (18% ig) und 60 kg Schwefelkohlenstoff in die unter dem namen ,,Viskose" bekannte Zellulosexanthogenatlösung übergeführt. Die Lösung wird bis zur Reife in einem zweckmässig auf 30 bis 40 erwärmten Raume aufbewahrt und dann in verdünnte Schwefelsäure oder zirka 40% ige Natriumbisuisstlöaung ein-
EMI2.2
Beispiel 1, durch Behandeln mit konz. Ameisensäure in Zelluloseformiat übergeführt.
Beispiel 3.
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and gives thicker solutions, no doubt because the cellulose molecule is still higher or in a different way hydrated than the perhaps more evenly dried threads. But these solutions of unshaped cellulose are very useful and they can form a valuable substitute for rayon and other shaped waste when the process according to the parent patent is carried out. So what is involved here is the treatment of unformed cellulose, apparently a certain hydration stage in place of the waste used in the parent patent, a hydration stage which is suitable for the formation of formic acid esters.
Example 1.
100 kg of cotton are concentrated with the 250 kg of copper sulfate and 1100'y. Ammonia won'feuchten copper hydroxide mass with the addition of a further 100 k conc. Treated ammonia in the mixer until the cotton has completely dissolved. This solution is poured in a stream that is not too thick into a precipitating bath consisting of about 10% dilute sulfuric acid, conveniently with stirring. whereby the ellulose hydrate precipitates. It is separated from the liquid by filtration, washed with water and dried. The so-called dry product is now placed in containers made of suitable material (glass, stoneware, etc.)
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treated until the cellulose hydrate has completely gone into solution as formate.
The solution can either be used directly for the production of films, plastic masses, etc. or the cellulose formate can be isolated from the same by means of suitable precipitants (e.g. water).
Example 2.
100 kg of cellulose are converted in the usual way with 700 kg of sodium hydroxide solution (18%) and 60 kg of carbon disulfide into the cellulose xanthate solution known as "Viscose". The solution is stored until it is ripe in a room heated to between 30 and 40 and then in dilute sulfuric acid or about 40% sodium biscuit solution
EMI2.2
Example 1, by treating with conc. Formic acid converted into cellulose formate.
Example 3.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE49177X | 1909-12-20 | ||
| DE60447X | 1910-11-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT60447B true AT60447B (en) | 1913-08-11 |
Family
ID=25749079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT60447D AT60447B (en) | 1909-12-20 | 1911-03-13 | Process for utilizing cellulose waste. Artificial silk manufacture of all kinds by converting it into formyl cellulose. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT60447B (en) |
-
1911
- 1911-03-13 AT AT60447D patent/AT60447B/en active
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