DE700677C - Anti-foaming agent - Google Patents

Anti-foaming agent

Info

Publication number
DE700677C
DE700677C DE1939H0158269 DEH0158269D DE700677C DE 700677 C DE700677 C DE 700677C DE 1939H0158269 DE1939H0158269 DE 1939H0158269 DE H0158269 D DEH0158269 D DE H0158269D DE 700677 C DE700677 C DE 700677C
Authority
DE
Germany
Prior art keywords
solution
foaming agent
carbon atoms
foaming
diol
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.)
Expired
Application number
DE1939H0158269
Other languages
German (de)
Inventor
Dr Ludwig Mannes
Dr-Ing Helmuth Ruemmler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henkel AG and Co KGaA
Original Assignee
Henkel AG and Co KGaA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Henkel AG and Co KGaA filed Critical Henkel AG and Co KGaA
Priority to DE1939H0158269 priority Critical patent/DE700677C/en
Application granted granted Critical
Publication of DE700677C publication Critical patent/DE700677C/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J189/00Adhesives based on proteins; Adhesives based on derivatives thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D19/00Degasification of liquids
    • B01D19/02Foam dispersion or prevention
    • B01D19/04Foam dispersion or prevention by addition of chemical substances
    • B01D19/0404Foam 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)
  • Organic Chemistry (AREA)
  • Materials For Medical Uses (AREA)

Description

Mittel gegen Schaumbildung Bei der Verarbeitung wäßriger kolloider Lösungen, beispielsweise von Leim, Gelatine, Casein, Blutalbumin und anderen Eiweißstoffen, ferner von Seifen und manchen organischen Farbstoffen sowie von bei der Vergärung kohlenhydrathaltiger Stoffe erhaltenen Schlempen u. dgl., wirkt die Schaumbildung äußerst störend. Dies gilt auch für manche unter Gasentwicklung oder unter Hindurchleiten von Gasen durch Flüssigkeiten verlaufende chemische Prozesse.Anti-foaming agent when processing aqueous colloids Solutions, for example of glue, gelatine, casein, blood albumin and other proteins, also from soaps and some organic dyes as well as from fermentation Schlempen and the like obtained from carbohydrate-containing substances, the foaming takes place extremely annoying. This also applies to some with evolution of gas or with passing through Chemical processes moving gases through liquids.

Demgegenüber wurde gefunden, daß sich diese Schaumbildung durch einen Zusatz äußerst geringer Mengen von höhermolekularen aliphatischen zweiwertigen Alkoholen, derea Hydroxylgruppen an benachbarten Içoh lenstoffatomen stehen, so gut wie völlig vermelden läßt. In contrast, it was found that this foam formation by a Addition of extremely small amounts of higher molecular weight aliphatic dihydric alcohols, there are almost all of the hydroxyl groups on neighboring carbon atoms lets report.

Höhermolekulare aliphatische zweiwertige Alkohole der genannten Art werden beispiels weise aus mindestens 8 Kohlenstoffatome enthaltenden Monoolefinen durch Oxydation vermittels Luft in Gegenwart von Säure oder durch Anlagerung von Halogenen mit nachfolgender Verseifung der entstandenen Mineralsäureester oder durch Anlagerung von Wasserstoffperoxyd erhalten. Higher molecular weight aliphatic dihydric alcohols of the type mentioned are example, from monoolefins containing at least 8 carbon atoms by oxidation by means of air in the presence of acid or by the addition of Halogens with subsequent saponification of the resulting mineral acid esters or by Accumulation of hydrogen peroxide obtained.

Beispiele 1. Einer 10%igen Lösung von Knochenleim in L:eitungswasser (12° D. H.) wird 1% (berechnet auf Trockensubstanz) eines Diolgemisches (OH-Zahl 395), dessen Bestandteile 13 bis 17 Kohlenstoffatome aufweisen (erhalten durch Ketonisierung synthetischer Fettsäuren aus der Paraffinoxydation, sog. Vor lauffettsäuren, mit nachfolgender Reduktion zu den entsprechenden sekundären Alkoholen, Dehydratisierung der letzteren zu den Olefinen und Oxydation der Olefine mit Luft in Gegenwart von Säure zu den Diolen), zugesetzt. Man erhält eine bei 45° nicht mehr schäumende Leimlösung. Examples 1. A 10% solution of bone glue in tap water (12 ° D.H.) is 1% (calculated on dry matter) of a diol mixture (OH number 395), the components of which have 13 to 17 carbon atoms (obtained by ketonization synthetic fatty acids from paraffin oxidation, so-called pre-run fatty acids, with subsequent reduction to the corresponding secondary alcohols, dehydration the latter to the olefins and oxidation of the olefins with air in the presence of Acid to the diols), added. A glue solution which no longer foams at 45 ° is obtained.

10 cm5 der Leimlösung mit und ohne Diolzusatz werden mit der Hand geschüttelt und die Schaumhöhe in Millimetern gemessen. Nach Nach 45° 1 Minute 5 Minuten mm mm Leimlösung ohne Zusatz 53 39 - +1% Diol I 2. Zu einer gesättigten Blutalbuminlösung wird I % (berechnet auf die Trockensubstanz) des in Beispiel 1 verwendeten Diolgemisches zugesetzt, wodurch ein Schäumen der Lösung gänzlich vermieden wird.10 cm5 of the glue solution with and without added diol are shaken by hand and the foam height is measured in millimeters. After after 45 ° 1 minute 5 minutes mm mm Glue solution without additives 53 39 - + 1% diol I. 2. I% (calculated on the dry matter) of the diol mixture used in Example 1 is added to a saturated blood albumin solution, which completely prevents the solution from foaming.

3. Einer Fischeiweißlösung in Leitungswasser (25 g!l) wird 1010 (berechnet auf die Trockensubstanz) 1, 2-Dioxyoctadecan (OH# Zahl 351, CO-Zahl 8) zugesetzt. Man erhält eine nicht schäumende Lösung. 3. A fish protein solution in tap water (25 g! L) is 1010 (calculated on the dry substance) 1,2-Dioxyoctadecane (OH number 351, CO number 8) was added. A non-foaming solution is obtained.

10 cms der Fischeiweißlösung werden mit der Hand geschüttelt, worauf die Schaumhöhe in Millimetern gemessen wird. Nach Nach 45 X Minute 5 Minuten mm mm Eiweißlösung ohne Zusatz 80 68 @ + IOlo Diol P 10 cms of the fish protein solution is shaken by hand, whereupon the foam height is measured in millimeters. After after 45 x minute 5 minutes mm mm Protein solution without additives 80 68 @ + IOlo Diol P

Claims (1)

PATENTANSPRUCH: Verwendung höhermolekularer aliphatischer zweiwertiger Alkohole, deren Hydroxylgruppen an benachbarten Kohlenstoffatomen stehen, als Mittel gegen Schaumbildung.PATENT CLAIM: Use of higher molecular weight aliphatic divalent ones Alcohols whose hydroxyl groups are on adjacent carbon atoms as agents against foaming.
DE1939H0158269 1939-01-07 1939-01-07 Anti-foaming agent Expired DE700677C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1939H0158269 DE700677C (en) 1939-01-07 1939-01-07 Anti-foaming agent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1939H0158269 DE700677C (en) 1939-01-07 1939-01-07 Anti-foaming agent

Publications (1)

Publication Number Publication Date
DE700677C true DE700677C (en) 1940-12-27

Family

ID=7182776

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1939H0158269 Expired DE700677C (en) 1939-01-07 1939-01-07 Anti-foaming agent

Country Status (1)

Country Link
DE (1) DE700677C (en)

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