AT86129B - Process for the production of cellulosic compounds. - Google Patents
Process for the production of cellulosic compounds.Info
- Publication number
- AT86129B AT86129B AT86129DA AT86129B AT 86129 B AT86129 B AT 86129B AT 86129D A AT86129D A AT 86129DA AT 86129 B AT86129 B AT 86129B
- Authority
- AT
- Austria
- Prior art keywords
- production
- acid
- cellulosic compounds
- compounds
- cellulosic
- Prior art date
Links
- 150000001875 compounds Chemical class 0.000 title claims description 6
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 238000000034 method Methods 0.000 title claims description 3
- 239000002253 acid Substances 0.000 claims description 6
- 239000001913 cellulose Substances 0.000 claims description 6
- 229920002678 cellulose Polymers 0.000 claims description 6
- FOCAUTSVDIKZOP-UHFFFAOYSA-N chloroacetic acid Chemical compound OC(=O)CCl FOCAUTSVDIKZOP-UHFFFAOYSA-N 0.000 claims description 4
- 229920000159 gelatin Polymers 0.000 claims description 3
- 235000019322 gelatine Nutrition 0.000 claims description 3
- 239000003518 caustics Substances 0.000 claims description 2
- 229940106681 chloroacetic acid Drugs 0.000 claims description 2
- 108010010803 Gelatin Proteins 0.000 claims 1
- 239000008273 gelatin Substances 0.000 claims 1
- 235000011852 gelatine desserts Nutrition 0.000 claims 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 239000001828 Gelatine Substances 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 159000000000 sodium salts Chemical class 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical class N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Chemical Or Physical Treatment Of Fibers (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur Herstellung von Zelluloseverbindungen.
Die Erfindung betrifft ein Verfahren zur Herstellung neuer Zelluloseverbindungen. Es hat sich gezeigt, dass beim Zuzammenbringen von merzerisierter Zellulose mit Chloressigsäure oder Halogenpropionsäure oder Homologen dieser Säuren in Gegenwart von Ätzalkalien neue Zelluloseverbindungen der genannten, organischen Säuren erhalten werden, deren Alkaliund Amoniaksalze sich in kaltem und heissem Wasser unter Quellung zu einer klaren, viskosen Flüssigkeit leicht lösen, dagegen unlöslich sind in Alkohol, Azeton, Äther, Benzol ;
Die wässrigen Lösungen hinterlassen beim Verdunsten Häute von fester Beschaffenheit, die denjenigen aus Leim bzw.
Gelatine ähneln und schwer brennbar sind. sie können unter anderem als Gelatine-ersatz verwendet werden,
Beispiel : 200 g lufttrockene, merzerisierte Zellulose werden mit 100 g 2opta Natronlauge durchfeuchtet und zwei Stunden sich selbst überlassen.
Dann wird das 345 g Monochloressigsäure entsprechende Natriumsalz dieser Säure in 400sus Alkohol suspendiert eingerührt und das Gemisch noch eine Stunde lang durch- . geknetet. Es werden dann Proben gezogen und auf vollkommene Wasserlöslichkeit geprüft.
Sobald dieser Punkt erreicht ist, werden die Laugen abgepresst und durch Waschen mit verdünntem Alkohol von etwa 90% und Neutralisieren von Salzen und Alkalien befreit.
Das erhaltene Produkt sieht wie das Ausgangsmaterial aus, löst sich klar in kaltem und heissem Wasser, mit dem es viskose'Lösungen bildet : Die aus dem so hergestellten Natriumsalz der neuen. Zelluloseverbindung der Monochloressigsäure durch Behandlung mit stärkeren Säuren herstellbare, freie Säure bildet einzige Zellulose aussehendes, weisses, faseriges Produkt, welches in kaltem und heissem Wasser unlöslich, dagegen leicht löslich in Alkalien ist.
Mit Metalloxyde von Kupfer, Blei und Alumium bildet die Säure im Wasser unlösliche Salze.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Process for the production of cellulosic compounds.
The invention relates to a method for producing new cellulose compounds. It has been shown that when mercerized cellulose is brought together with chloroacetic acid or halopropionic acid or homologues of these acids in the presence of caustic alkalis, new cellulose compounds of the organic acids mentioned are obtained, the alkali and ammonia salts of which swell in cold and hot water to form a clear, viscous liquid easily dissolve, but are insoluble in alcohol, acetone, ether, benzene;
When evaporating, the aqueous solutions leave behind skins of a solid nature, which resemble those of glue or
Resemble gelatine and are difficult to burn. they can be used as a gelatine substitute,
Example: 200 g air-dry, mercerized cellulose are moistened with 100 g 2opta sodium hydroxide solution and left to stand for two hours.
Then the sodium salt of this acid, corresponding to 345 g of monochloroacetic acid, suspended in 400% alcohol, is stirred in and the mixture is stirred for a further hour. kneaded. Samples are then taken and tested for complete water solubility.
As soon as this point is reached, the lye is pressed out and freed from salts and alkalis by washing with dilute alcohol of about 90% and neutralizing.
The product obtained looks like the starting material, it dissolves clearly in cold and hot water, with which it forms viscous solutions: that of the sodium salt produced in this way, the new. Cellulosic compound of monochloroacetic acid, which can be produced by treatment with stronger acids, forms the only cellulosic, white, fibrous product that is insoluble in cold and hot water, but easily soluble in alkalis.
With the metal oxides of copper, lead and aluminum, the acid forms insoluble salts in water.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE86129X | 1918-01-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT86129B true AT86129B (en) | 1921-11-10 |
Family
ID=5641164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT86129D AT86129B (en) | 1918-01-09 | 1918-11-04 | Process for the production of cellulosic compounds. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT86129B (en) |
-
1918
- 1918-11-04 AT AT86129D patent/AT86129B/en active
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