DE856891C - Process for the production of liquid remaining aqueous emulsions - Google Patents
Process for the production of liquid remaining aqueous emulsionsInfo
- Publication number
- DE856891C DE856891C DEC301D DEC0000301D DE856891C DE 856891 C DE856891 C DE 856891C DE C301 D DEC301 D DE C301D DE C0000301 D DEC0000301 D DE C0000301D DE 856891 C DE856891 C DE 856891C
- Authority
- DE
- Germany
- Prior art keywords
- production
- aqueous emulsions
- urea
- liquid remaining
- remaining aqueous
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K23/00—Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
- C09K23/017—Mixtures of compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Colloid Chemistry (AREA)
Description
Verfahren zur Herstellung flüssig bleibender wässeriger Emulsionen Wässerige Emulsionen von lipophilen Stoffen, die Salze mehrwertiger Ntetalle, insbesondere des Aluminiums, enthalten, sind in konzentriertem Zustande je nach Art und Menge des verwendeten Schutzkolloides mehr oder weniger dickflüssig, zum Teil erstarren sie sogar zu festen Gallerten. Bei Weglassung der Schutzkolloide sind die Emulsionen, wie sie beispielsweise nach dem Verfahren der französischen Patentschrift 864 640 hergestellt werden können, w dhl weniger viskos, neigen aber zur Thixotropie. Dieser Wechsel zwischen flüssiger und fester Beschaffenheit führt u. a. zu Schwierigkeiten bei der Lagerung und dem Transport derartiger Emulsionen, z. B. beim Entleeren aus Fässern mit engen Spunden.Process for the production of aqueous emulsions which remain liquid Watery Emulsions of lipophilic substances, the salts of polyvalent metals, in particular of the aluminum contained are in a concentrated state, depending on the type and quantity of the protective colloid used more or less viscous, partly solidifying they even turned into firm jelly. If the protective colloids are omitted, the emulsions as, for example, according to the method of French patent specification 864 640 can be produced that are less viscous, but tend to be thixotropic. This Switching between liquid and solid properties leads to, among other things. to trouble in the storage and transport of such emulsions, e.g. B. when emptying Barrels with tight bungs.
Es wurde gefunden, daß sich dieser Nachteil vermeiden läßt und flüssig bleibende, nicht thixotrope Emulsionen herstellbar sind, wenn man den Emulsionen Harnstoff zusetzt. Der Zusatz kann in einem beliebigen Zeitpunkt der Emulsionstierstellung erfolgen, zweckmäßig wird der Harnstoff jedoch der fertigen Emulsion zugefügt. An Stelle von Harnstoff kann auch Thioharnstoff verwendet werden. It has been found that this disadvantage can be avoided and that it is liquid Permanent, non-thixotropic emulsions can be produced if the emulsions Urea adds. The addition can be made at any point in time during the preparation of the emulsion animals take place, but the urea is expediently added to the finished emulsion. At Thiourea can also be used in place of urea.
Es ist bekannt, daß Harnstoff Gelatine- und l.eimgallerten verflüssigt, jedoch enthalten gerade die Emulsionen nach dem- Verfah ren der vorliegenden Anmeldung keinerlei derartige Schutzkolloide und hei der Thixotropie handelt es sich hekanntlich um die reversible Erscheinung, daß Kolloide in der Ruhe erstarren und durch Bewegung verflüssigt werden. It is known that urea liquefies gelatine and egg gelatin, however just included the emulsions according to the process present application no such protective colloids and is called thixotropy As is known, it is a question of the reversible phenomenon that colloids are at rest solidify and be liquefied by movement.
B e i s p i e l In einen Kreiselmischer werden Sol einer hasischen Aluminiumformiatlösung (15%, Al2O3 und 19% Ameisensäure) gegeben, die mit Ammoniak auf ein p, von rund 4 abgestumpft ist. Nach dem Erwärmen auf 75 ° läßt man ein geschmolienes Gemisch von 18 kg Paraffin und gkg eines synthetischen Hartwachses (Schmelzpunkt 100°, Verseifungszahl 70, Säurezahl 40) zulaufen und rührt bei dieser Temperatur l/2 Stunde lang. Dann fügt man @1 kg gepulverten Harnstoff zu, so daß die entstandene Emulsion flüssiger wird und in einer Hochdruckhomogenisiermaschine bei 20 atü nachbehandelt werden kann. Nach dem Kaltrühren der homogenisierten Emulsion setzt man noch 40 1 einer 250/o.igen Harnstofflösung zu. Example p i e l In a gyro mixer, Sol one becomes hasish Aluminum formate solution (15%, Al2O3 and 19% formic acid) added to the ammonia is truncated to ap, by around 4. After heating to 75 ° one leaves a melted Mixture of 18 kg paraffin and gkg of a synthetic hard wax (melting point 100 °, saponification number 70, acid number 40) and stirred at this temperature for 1/2 hour. Then @ 1 kg of powdered urea is added so that the resulting The emulsion becomes more fluid and is post-treated in a high pressure homogenizing machine at 20 atmospheres can be. After the homogenized emulsion has been stirred cold, another 40 is added 1 of a 250% urea solution.
Die fertige Emulsion ist flüssig und bleibt es auch bei längerem Stehen, während eine gleichartige Emulsion ohne Harnstoff erheblich dicker und vor allem thixotrol) ist. The finished emulsion is liquid and stays that way for a long time Stand, while a similar emulsion without urea, considerably thicker and in front especially thixotrol) is.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEC301D DE856891C (en) | 1945-01-12 | 1945-01-12 | Process for the production of liquid remaining aqueous emulsions |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEC301D DE856891C (en) | 1945-01-12 | 1945-01-12 | Process for the production of liquid remaining aqueous emulsions |
Publications (1)
Publication Number | Publication Date |
---|---|
DE856891C true DE856891C (en) | 1952-11-24 |
Family
ID=7012287
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEC301D Expired DE856891C (en) | 1945-01-12 | 1945-01-12 | Process for the production of liquid remaining aqueous emulsions |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE856891C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1044322B (en) * | 1953-10-29 | 1958-11-20 | Stockhausen & Cie Chem Fab | Neutral or alkaline liquid metal cleaning agents |
DE1047357B (en) * | 1955-05-23 | 1958-12-24 | Rotta Chem Fab Theodor | Process for the production of aqueous, easily dilutable emulsions of hydrophobic substances |
DE1238924B (en) * | 1960-11-16 | 1967-04-20 | Bayer Ag | Process for the production of aqueous emulsions |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR778548A (en) * | 1933-09-16 | 1935-03-18 | Ig Farbenindustrie Ag | Process for the preparation of stable solutions of formate or aluminum acetate |
DE612417C (en) * | 1929-09-26 | 1935-04-30 | I G Farbenindustrie Akt Ges | Process for the production of highly concentrated aqueous solutions from salts of organic compounds containing sulfonic acid groups with capillary-active properties |
-
1945
- 1945-01-12 DE DEC301D patent/DE856891C/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE612417C (en) * | 1929-09-26 | 1935-04-30 | I G Farbenindustrie Akt Ges | Process for the production of highly concentrated aqueous solutions from salts of organic compounds containing sulfonic acid groups with capillary-active properties |
FR778548A (en) * | 1933-09-16 | 1935-03-18 | Ig Farbenindustrie Ag | Process for the preparation of stable solutions of formate or aluminum acetate |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1044322B (en) * | 1953-10-29 | 1958-11-20 | Stockhausen & Cie Chem Fab | Neutral or alkaline liquid metal cleaning agents |
DE1047357B (en) * | 1955-05-23 | 1958-12-24 | Rotta Chem Fab Theodor | Process for the production of aqueous, easily dilutable emulsions of hydrophobic substances |
DE1238924B (en) * | 1960-11-16 | 1967-04-20 | Bayer Ag | Process for the production of aqueous emulsions |
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