CH249366A - Foam control agents. - Google Patents
Foam control agents.Info
- Publication number
- CH249366A CH249366A CH249366DA CH249366A CH 249366 A CH249366 A CH 249366A CH 249366D A CH249366D A CH 249366DA CH 249366 A CH249366 A CH 249366A
- Authority
- CH
- Switzerland
- Prior art keywords
- foam control
- control agent
- water
- soluble
- agent according
- Prior art date
Links
- 239000006260 foam Substances 0.000 title claims description 17
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 15
- 239000003795 chemical substances by application Substances 0.000 claims description 11
- -1 hydroxyl compound Chemical class 0.000 claims description 11
- YIWUKEYIRIRTPP-UHFFFAOYSA-N 2-ethylhexan-1-ol Chemical compound CCCCC(CC)CO YIWUKEYIRIRTPP-UHFFFAOYSA-N 0.000 claims description 10
- 125000004432 carbon atom Chemical group C* 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000003021 water soluble solvent Substances 0.000 claims description 2
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 claims 1
- 230000001419 dependent effect Effects 0.000 claims 1
- 239000000344 soap Substances 0.000 claims 1
- 239000002904 solvent Substances 0.000 claims 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 9
- 239000000243 solution Substances 0.000 description 8
- 229920000297 Rayon Polymers 0.000 description 7
- 239000000203 mixture Substances 0.000 description 6
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- MEEKGULDSDXFCN-UHFFFAOYSA-N 2-pentylphenol Chemical class CCCCCC1=CC=CC=C1O MEEKGULDSDXFCN-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- ALSTYHKOOCGGFT-KTKRTIGZSA-N (9Z)-octadecen-1-ol Chemical compound CCCCCCCC\C=C/CCCCCCCCO ALSTYHKOOCGGFT-KTKRTIGZSA-N 0.000 description 1
- TZYRSLHNPKPEFV-UHFFFAOYSA-N 2-ethyl-1-butanol Chemical compound CCC(CC)CO TZYRSLHNPKPEFV-UHFFFAOYSA-N 0.000 description 1
- 108010010803 Gelatin Proteins 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- ALSTYHKOOCGGFT-UHFFFAOYSA-N cis-oleyl alcohol Natural products CCCCCCCCC=CCCCCCCCCO ALSTYHKOOCGGFT-UHFFFAOYSA-N 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- YODZTKMDCQEPHD-UHFFFAOYSA-N thiodiglycol Chemical compound OCCSCCO YODZTKMDCQEPHD-UHFFFAOYSA-N 0.000 description 1
- 229950006389 thiodiglycol Drugs 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/02—Foam dispersion or prevention
- B01D19/04—Foam dispersion or prevention by addition of chemical substances
- B01D19/0404—Foam dispersion or prevention by addition of chemical substances characterised by the nature of the chemical substance
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Dispersion Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
SchaumbekÏmpfungsmittel.
Vorliegende Erfindung bezieht sich auf ein Schaumbekämpfungsmittel, welches dadurch gekennzeichnet ist, da¯ es einerseits eine in Wasser schwer lösliche Hydroxylverbindung mit einer offenen Eette von mindestens 5 C-Atomen und anderseits ein organiches, in Wasser losliches Losungsmittel enthalt.
Als in Wasser schwer losliche Hydroxylverbindungen der angeführten Art kommen beispielsweise aliphatische Alkohole mit min- destens 5 C-Atomen, wie Amylalkohole, Hexylalkohole, Octylalkohole, insbesondere solche mit verzweigter Kette, z. B. 2-Athyl-butanol, vorzugsweise aber 2-Athyl-hexanol, in Frage.
In Betracht kommen auch noch höhermoleku- lare Alkohole, wie Oleinalkohol. Ferner k¯nnenals in Wasserschwer l¯sliche Hydroxylver bindungen in dem erfindungsgemässen Schaum- bekämpfungsmittel auch Phenole, die eine Seitenkette mit mindestens 5 C-Atomen enthalten, wie Amylphenole, enthalten sein.
Als organische, in Wasser l¯sliche Lösungsmittel kann das erfindungsgemäBe Schaumbekämpfungsmittel z. B. niedrigmole- kulare a. liphatische Alkohole, wie Isopro- pylalkohol, ferner mehrwertige Alkohole oder deren Äther, wie ¯thylenglykol, Glycerin, Diäthylenglykol, TriÏthylenglykol, ¯thylenglykolmonoäther, femer auch Thiodiglykol enthalten. In Betracht kommen weiterhin wasserlösliche getone, wie Aceton.
Das erfindungsgemäBe Schaumbekämp- fungsmittel eignet sich insbesondere zur Schaumbekämpfung in Viscosel¯sungen. Es kann aber mit Erfolg auch in andern schäu- menden Fiiissigkeiten, z. B. Gärlosungen, Gelatinelosungen, Textilbehandlungsflotten, FÏrbebÏdern, Druckpasten, ferner auch zur Schaumbekämpfung in der Papierindustrie verwendet werden.
Die zur SchaumbekÏmpfung erforderliche Menge des erfindungsgemϯen Sehaumbe- KÏmpfungsmittels richtet sich nach der Menge und Art der Schaumbildner. Im allgemeinen genügen geringe Mengen, bei Viscoselosungen z. B. 0, 01-0, 5%.
Die Zusammensetzung des erfindungsgemϯen Schaumbekämpfungsmittels kann in weiten Grenzen schwanken. Vorteilhaft enthÏlt es etwa gleiche Mengen an wasserlös- lichen und in Wasser schwer l¯slichen Anteilen.
Beispiel 1 :
Einer zum Verspinnen bestimmten Vis coselösung der üblichen Zusammensetzung werden 0, 02% einer Mischung aus gleichen Teilen 2-Athyl-hexanol und Isopropylalkohol zugesetzt. Der Zusatz bewirkt ein rasches Zusammenfallen der in der Viscoselösung vorhandenen Luftblaschen.
Beispiel 2 :
Einer 0, 1% igen wässrigen Lösung des p-Stearoylaminophenyl-dimethyl-ammonium- methylsulfats werden pro Liter 1 cm einer Mischung aus gleichen Teilen p-tert. Amylphenol und Isopropylalkohol zugefügt. Der Zusatz bewirkt eine sehr ausgeprägte Verminderung der Schaumbildung.
Beispiel 3 :
Einer mit Wasser verdünnten Viscoselösung, enthaltend etwa 3, 3 % Viscose und 2, 3 % Natriumhydroxyd, werden pro Liter 6, 6 em3 einer Mischung aus gleichen Teilen 2-Äthyl-hexanol und Athylenglykol zuge- fügt. Der beim Einleiten von Luft in geringer Menge sich bildende Schaum fÏllt nach kurzer Zeit zusammen, wÏhrend unter gleichen Bedingungen eine Viscoselösung gleicher Zusammensetzung, die jedoch den genannten Zusatz nicht enthält, einen sehr stabilen Schaum in beträchtlicher Menge liefert.
Anti-foaming agents.
The present invention relates to a foam control agent which is characterized in that it contains, on the one hand, a sparingly water-soluble hydroxyl compound with an open chain of at least 5 carbon atoms and, on the other hand, an organic, water-soluble solvent.
Hydroxyl compounds of the type mentioned which are sparingly soluble in water include, for example, aliphatic alcohols with at least 5 carbon atoms, such as amyl alcohols, hexyl alcohols, octyl alcohols, in particular those with a branched chain, e.g. B. 2-ethyl-butanol, but preferably 2-ethyl-hexanol, in question.
Even higher molecular weight alcohols, such as oleic alcohol, are also suitable. Furthermore, as hydroxyl compounds which are difficult to dissolve in water, phenols which contain a side chain with at least 5 carbon atoms, such as amylphenols, can also be contained in the foam control agent according to the invention.
As an organic solvent which is soluble in water, the foam control agent according to the invention can e.g. B. low molecular weight a. lipatic alcohols, such as isopropyl alcohol, and also polyhydric alcohols or their ethers, such as ethylene glycol, glycerol, diethylene glycol, triethylene glycol, ethylene glycol monoether, and also thiodiglycol. Water-soluble clays, such as acetone, are also suitable.
The foam control agent according to the invention is particularly suitable for foam control in viscose solutions. But it can also be used successfully in other foaming fluids, e.g. B. fermentation solutions, gelatin solutions, textile treatment liquors, dyeing, printing pastes, and can also be used for foam control in the paper industry.
The amount of the foam control agent according to the invention required for combating foam depends on the amount and type of foaming agent. In general, small amounts are sufficient, with viscose solutions such. B. 0.01-0.5%.
The composition of the foam control agent according to the invention can vary within wide limits. It advantageously contains roughly the same amount of water-soluble and water-sparingly soluble components.
Example 1 :
0.02% of a mixture of equal parts of 2-ethylhexanol and isopropyl alcohol is added to a viscose solution of the usual composition intended for spinning. The addition causes the air bubbles present in the viscose solution to collapse quickly.
Example 2:
A 0.1% aqueous solution of p-stearoylaminophenyl-dimethyl-ammonium-methylsulfate are per liter 1 cm of a mixture of equal parts p-tert. Amylphenol and isopropyl alcohol added. The addition causes a very pronounced reduction in foam formation.
Example 3:
A viscose solution diluted with water, containing about 3.3% viscose and 2.3% sodium hydroxide, is added per liter 6.6 em3 of a mixture of equal parts of 2-ethylhexanol and ethylene glycol. The foam that forms in small amounts when air is introduced collapses after a short time, while under the same conditions a viscose solution of the same composition, but which does not contain the additive mentioned, provides a very stable foam in considerable amounts.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH249366T | 1946-04-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH249366A true CH249366A (en) | 1947-06-30 |
Family
ID=4467493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH249366D CH249366A (en) | 1946-04-26 | 1946-04-26 | Foam control agents. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH249366A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1009760B (en) * | 1955-09-13 | 1957-06-06 | Spinnfaser Ag | Process for improving the utility value and for reducing the swelling value of staple fibers made from regenerated cellulose |
-
1946
- 1946-04-26 CH CH249366D patent/CH249366A/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1009760B (en) * | 1955-09-13 | 1957-06-06 | Spinnfaser Ag | Process for improving the utility value and for reducing the swelling value of staple fibers made from regenerated cellulose |
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